1. Manuals
  2. Brands
  3. Comtec Manuals
  4. Network Router
  5. CDM-840
  6. Installation and operation manual

Comtec CDM-840 Installation And Operation Manual

Advanced vsat series remote router
Hide thumbs
Table of Contents

Advertisement

Quick Links

CDM-840
Advanced VSAT Series Remote Router
Installation and Operation Manual
For Firmware Version 1.6.2.X or higher
IMPORTANT NOTE: The information contained in this document supersedes all previously published
information regarding this product. Product specifications are subject to change without prior notice.
Part Number MN-CDM840 / CD-CDM840
Revision 3

Advertisement

Table of Contents
loading

Summary of Contents for Comtec CDM-840

  • Page 1 CDM-840 Advanced VSAT Series Remote Router Installation and Operation Manual For Firmware Version 1.6.2.X or higher IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product. Product specifications are subject to change without prior notice.
  • Page 3 Errata A for MN-CDM840 Rev 3 Comtech EF Data Documentation Update Subject: Replace Sect. 3.2.3.3 'CONSOLE' Interface Connector (DB-9M) Errata Part Number: ER-CDM840-EA3 Rev - (Errata documents are not revised) PLM CO Number: C-0033932 Comments: Replace Sect. 3.2.3.3 (MN-CDM840 Rev 3 Page 3-9): ER-CDM840-EA3 Rev - PLM C-0033932...
  • Page 4 BLANK PAGE ER-CDM840-EA3 Rev - PLM C-0033932...
  • Page 5 CDM-840 Advanced VSAT Series CDM-840 Remote Router) Installation and Operation Manual For Firmware Version 1.6.2.X or Higher Part Number MN-CDM840 / CD-CDM840 Revision 3 Copyright © 2015 Comtech EF Data. All rights reserved. Printed in the USA. Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161...
  • Page 6 BLANK PAGE...
  • Page 7 TABLE OF CONTENTS TABLE OF CONTENTS ......................III TABLES ..........................XIII FIGURES ..........................XIII PREFACE ..........................XVII About this Manual ......................... xvii Related Documents ..........................xvii Conventions and References ......................xviii Patents and Trademarks ........................xviii Warnings, Cautions, and Notes ......................xviii Examples of Multi-Hazard Notices ......................

  • Page 8: Table Of Contents

    2.2.1 Install the Optional Rear Support Brackets Kit ................. 2–3 CHAPTER 3. REAR PANEL CONNECTIONS ..............3–1 Overview – Cabling Connection Types ................. 3–1 CDM-840 Cabling Connections ..................... 3–5 3.2.1 IF Connector Group ........................3–6 3.2.1.1 ‘L-BAND Rx’ IF Connector ....................3–6 3.2.1.2...
  • Page 9 3.2.3.3 ‘CONSOLE’ Interface Connector (DB-9M) ................. 3–9 3.2.3.4 ‘ALARMS’ Interface Connector (DB-15M) ............... 3–10 CDM-840 Ground and Power Connections ................. 3–11 3.3.1 Common Chassis Ground Interface ..................3–11 3.3.2 115V/230V Alternating Current (AC) Power Interface (Standard) ......... 3–12 3.3.2.1 AC Operation – Apply Power ..................3–12 3.3.2.2...
  • Page 10 CDM-840 Remote Router MN-CDM840 / CD-CDM840 Table of Contents Revision 3 6.2.3.2.4 Action Buttons ......................6–8 6.2.3.2.5 Drop-down Lists ......................6–8 6.2.3.2.6 Text or Data Entry ....................... 6–8 6.2.3.3 HTTP Interface Menu Tree Diagram ................. 6–9 HTTP Interface Page Descriptions ..................6–10 6.3.1 Home Pages ..........................
  • Page 11 6.3.4.1.4.1 Page Functionality Common for all QoS Control Modes ........6–71 6.3.4.1.4.2 Page Functionality Specific to Active QoS Control Mode ........6–72 6.3.4.1.5 Status | Statistics | E1 Pages (CDM-840 only) ............6–73 6.3.4.1.5.1 Status | Statistics | E1 | Transmit ..............6–73 6.3.4.1.5.2 Status | Statistics | E1 | Receive................
  • Page 12 APPENDIX C. DATA COLLECTION ................... C–1 Data Collection Overview ....................C–1 Initial Setup of Communications Between the CDM-840 and the User PC ......C–3 Collect the Pre-Reboot Diagnostic Information from the CDM-840 ........C–4 Collect and Report the Post-Reboot Diagnostic Information from the CDM-840 ....C–5 Serial Adapter Cable Fabrication Specifications Reference............
  • Page 13 Functional Overview ......................D–1 D.1.1 Background ..........................D–2 VersaFEC ACM ........................D–3 D.2.1 VersaFEC ACM Latency ......................D–4 CDM-840 VersaFEC ACM Operation ..................D–5 D.3.1 VersaFEC ACM Operation Using the HTTP Interfaces ..............D–5 D.3.2 Troubleshooting........................D–8 D.3.3 Monitoring ACM Performance ....................D–8 D.3.4 ModCod Switch Points ......................D–8 ACM Congestion Control ....................
  • Page 14 ECM Revert Cycle Timing ....................G–8 G.2.2.2 ECMv2 Backoff Algorithm ....................G–8 ECM Operation ........................ G–10 G.3.1 ECM Operation – CDM-840 Serial Remote Control ............... G–11 G.3.2 ECM Operation – HTTP Interfaces ..................G–12 G.3.2.1 CDM-840 HTTP Operation – Remote Router Terminals ..........G–14 G.3.2.2...
  • Page 15 K.2.1 Process Overview........................K–4 K.2.2 WAN Link Dimensioning and Pre-emptive Bandwidth Management ........K–5 K.2.2.1 Performance Monitoring via the CDM-840 HTTP Interface ..........K–7 K.2.2.1.1 Traffic Throughput (kbps) Graph ................K–10 K.2.2.1.2 RAN Link Quality Graph .................... K–10 K.2.2.1.3 RANOp Savings Graph ....................K–11 APPENDIX L.
  • Page 16 CDM-840 Remote Router MN-CDM840 / CD-CDM840 Table of Contents Revision 3 Summary .......................... L–11 APPENDIX M. DPC (VMS DYNAMIC POWER CONTROL) ..........M–1 Overview .......................... M–1 M.1.1 Background ..........................M–2 Theory of Operation ......................M–2 M.2.1 About DPC ..........................M–2 M.2.2 DPC Functionality ........................
  • Page 17 Figure 6-1. CDM-840 Serial Interface ......................6–2 Figure 6-2. CDM-840 Remote Router Virtual Front Panel ................ 6–5 Figure 6-3. CDM-840 HTTP Interface – Menu Tree (FW Ver. 1.6.2.5) ............6–9 Figure 6-4. Home | Home Page ......................6–10 Figure 6-5. Home | Contact Page ......................6–11 Figure 6-6.
  • Page 18 Figure 6-45. Utility | Carrier ID Page ....................... 6–84 Figure 6-46. Utility | Reboot Page ......................6–85 Figure 7-1. CDM-840 Serial Interface Example ..................7–2 Figure A-1. Advanced VSAT Series Hub and Remote Site Products ............A–1 Figure B-1. The VersaFEC Codes versus Shannon Capacity ..............B–3 Figure B-2.
  • Page 19 Figure E-9. Hub Network Configuration ....................E–11 Figure E-10. Multiple CTOG-250 Outbounds in Redundant Mode ............E–12 Figure F-1. CDM-840 HTTP Interface and Menu Tree – Carrier ID Operation (FW Ver. 1.6.2.X) ....F–4 Figure F-2. Utility | Carrier ID Page ......................F–5 Figure G-1.
  • Page 20 CDM-840 Remote Router MN-CDM840 / CD-CDM840 Table of Contents Revision 3 Figure L-3. CDD-880 HTTP Interface – Configuration | Network | Routing Page ........L–9 Figure M-1. DPC Power Scale ........................M–4 Figure M-2. ACM – ModCod Switch Points ....................M–6 Figure M-3.
  • Page 21 Errata C for MN-CDM840 Rev 3 Comtech EF Data Documentation Update Subject: Added new safety information to Preface section Errata Part Number: ER-CDM840-EC3 Rev - (Errata documents are not revised) PLM CO Number: C-0035484 Comments: Replace Preface entirely, Errata C supersedes Errata B. Errata B is obsolete, remove Errata B pages from the manual.
  • Page 22 BLANK PAGE ER-CDM840-EC3 Rev -...
  • Page 23 ER-CDM840-EC3 Rev -...
  • Page 24 ER-CDM840-EC3 Rev -...
  • Page 25 ER-CDM840-EC3 Rev -...
  • Page 26 ER-CDM840-EC3 Rev -...
  • Page 27 ER-CDM840-EC3 Rev -...
  • Page 28 ER-CDM840-EC3 Rev -...
  • Page 29 ER-CDM840-EC3 Rev -...
  • Page 30 ER-CDM840-EC3 Rev -...
  • Page 31 Errata D for MN-CDM840 Rev 3 Comtech EF Data Documentation Update Subject: Change Section 1.4.4, Demodulator, Input Power Range, Desired Carrier Errata Part Number: ER-CDM840-ED3 Rev - (Errata documents are not revised) PLM CO Number: C-0035561 Comments: Change Section 1.4.4, Demodulator, Input Power Range, Desired Carrier; use Msps for symbol rate instead of MHz.
  • Page 32 BLANK PAGE ER-CDM840-ED3 Rev -...

  • Page 33: Figure 1-1. Cdm-840 Remote Router

    Chapter 1. INTRODUCTION Overview Figure 1-1. CDM-840 Remote Router The CDM-840 Remote Router (Figure 1-1) is a point-to-multipoint router. It serves as the “spoke” or remote site equipment component of Comtech EF Data’s Advanced VSAT Series group of products (Figure 1-2).
  • Page 34 Introduction Revision 3 The CDM-840 features one 10/100/1000 Gigabit Ethernet (GigE) interface, one 10/100 Fast Ethernet (FE) interface, and provides WAN bandwidth optimization. It also features integrated VersaFEC, a patented system of short-block codes that provide maximum coding gain with lowest possible latency.
  • Page 35 On the Rx (receive) side: The DVB-S2 demodulator supports enhanced GSE decapsulation and label filtering for up to 2,047 unique labels. DVB-S2 Receiver: The CDM-840’s demodulator supports DVB-S2 QPSK, 8-PSK, 16-APSK, and 32- APSK demodulation up to 62 Msps, with receive data rates up to 167 Mbps depending on the modulation type and code rate.

  • Page 36: Features

    Revision 3 Features 1.3.1 Physical Description The CDM-840 Remote Router is constructed as a 1RU-high rack-mounting chassis. Handles at the front facilitate removal from and placement into a rack. The unit can be freestanding if desired. • Sect. 1.4 CDM-840 Specifications •...

  • Page 37: Dimensional Envelope

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 1.3.2 Dimensional Envelope Figure 1-3. CDM-840 Dimensional Envelope 1–5...

  • Page 38: Physical Features

    • Chapter 7. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT Figure 1-4. CDM-840 – Front Panel View The CDM-840 front panel (Figure 1-4) provides these features: LED Indicators The front panel features eight (8) Light-Emitting Diode (LED) indicators. These LEDs convey operational states as follows:...

  • Page 39: Rear Panel Features

    • Sect. 3.2 CDM-840 Cabling Connections • Sect. 3.3 CDM-840 Ground and Power Connections CAUTION – PROPER GROUNDING PROTECTION IS REQUIRED. The equipment must be connected to the protective earth connection at all times. It is therefore imperative that the unit is properly grounded, using the ground stud provided on the unit rear panel, during installation, configuration, and operation.

  • Page 40: Rear Panel Standard Features

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 1.3.3.2.1 Rear Panel Standard Features As per Figure 1-5, from left to right: Power Interface: • 100V to 240V AC Primary Input Power Supply with Press-fit Fuse Holder IF Interfaces: • (2X) Type ‘N’ female L-BAND Rx (at far left) and L-Band Tx (at far right) connectors for 50Ω...

  • Page 41: On-Site Firmware Updates

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 1.3.4 On-site Firmware Updates Chapter 4. UPDATING FIRMWARE Field update of the operating system firmware is possible through file upload via satellite or the Ethernet port. 1.3.5 On-site Operational Upgrades Chapter 5. FAST ACTIVATION PROCEDURE Field activation of software-based options is possible through Comtech EF Data’s FAST (Fully...

  • Page 42: Specifications

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 Specifications 1.4.1 Product Features Item Description 8 Light-Emitting Diodes (LEDs): UNIT STATUS (Green/Amber/Red) TRANSMITTER ON (Green/Red) Front Panel STORED EVENT (Amber) Tx TRAFFIC (Green/Amber/Red) ONLINE (Green) Rx TRAFFIC (Green/Amber/Red) TEST MODE (Amber) GE LINK/ACTIVITY (Green) Rear Panel IF Type ‘N’...

  • Page 43: Modulator

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 1.4.3 Modulator Parameter Specifications Operating Frequency 950 to 2150 MHz L-Band, 100 Hz frequency resolution Frequency Reference ±0.06 ppm (±6 x 10-8), 0 to 50°C (32 to 122°F) Scrambling Comtech, disabled Spectral Inversion...

  • Page 44: Block Up Converter (Buc) Support

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 1.4.3.2 Block Up Converter (BUC) Support Parameter Specifications Supplied through Tx IF center conductor, 10.0 MHz ±0.06 ppm, selectable on/off, 0.0 Reference (10 MHz) dBm ±3 dB Supplied through Tx IF center conductor and selectable on/off via M&C control Power Supply •...

  • Page 45: Low Noise Block Down Converter (Lnb) Support

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 Outbound (Hub to Remote) Specifications Parameter Demodulation / FEC / Data Rate • QPSK 1/4 0.479 – 29.672 Mbps • 8-PSK 5/6 2.422 – 150.181 Mbps Ranges (Normal FEC Frame, • QPSK 1/3 0.641 – 39.731Mbps •...

  • Page 46: Ber (Bit Error Rate)

    CDM-840 Remote Router MN-CDM840 Introduction Revision 3 1.4.5 BER (Bit Error Rate) VersaFEC CODEC BER Rate – Guaranteed Eb/No (typical value in parentheses) For BER=10 BPSK Rate 0.488 (With two adjacent BER=10 2.4 dB (2.1 dB) carriers, each 7 dB BER=10 2.7 dB (2.4 dB)

  • Page 47: Chapter 2. Installation

    Unpack and Inspect the Shipment Figure 2-1. Unpack and Inspect the Shipment The CDM-840 Remote Router, its optional Installation and Operation Manual (otherwise available online at http://www.comtechefdata.com), and its power cord were packaged and shipped in a reusable cardboard carton containing protective foam spacing.

  • Page 48: Install The Unit Into A Rack Enclosure

    Comtech EF Data to submit a damage report. Read the manual. Install the Unit Into a Rack Enclosure Install the CDM-840 in its assigned position in the rack enclosure (Figure 2-2). Use, as required: • A standard rack-mounted shelf;...

  • Page 49: 2.2.1 Install The Optional Rear Support Brackets Kit

    CDM-840 Remote Router MN-CDM840 Installation Revision 3 Feature Description Custom Rack Enclosure CDM-840 Unit Standard Rack Shelving Rack Enclosure Threaded Front Rail (typical) Unit Front Panel User-supplied Screws Figure 2-2. Install the Unit Into a Rack Enclosure 2.2.1 Install the Optional Rear Support Brackets Kit...

  • Page 50: Figure 2-3. Install The Optional Rear Support Brackets Kit

    CDM-840 Remote Router MN-CDM840 Installation Revision 3 Feature Description Back of Unit Rack Enclosure Threaded Rear Mounting Rail (typical) KT-0000XXX Primary Rear Support Brackets Kit Quantity Item CEFD Part Number Description KT-0000168 KT-0000195 FP-0000913 Plate, Adapter HW/10-32X3/8FLT Screw, #10 Flat Head –...
  • Page 51 Do these steps to install the brackets kit (Figure 2-3): Step Description Assemble the Adapter Plates to the back sides of the CDM-840 chassis using the #10 Flat Head Screws. Assemble the #10 Shoulder Screws through the Adapter Plate mounting slots using the #10 Flat Washers, #10 Split Washers, and #10 Hex Nuts.
  • Page 52 CDM-840 Remote Router MN-CDM840 Installation Revision 3 Notes: 2–6...

  • Page 53: Chapter 3. Rear Panel Connections

    Chapter 3. REAR PANEL CONNECTIONS Overview – Cabling Connection Types Comtech EF Data’s Advanced VSAT Series group of products, including the CDM-840 Remote Router, use a number of different cables. Each cable type is typically dedicated to a specific mode of operation.

  • Page 54: Figure 3-1. Coaxial Connector Examples

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.1.1 Coaxial Cable Connections Connector Type Coupling Type Plug Jack Bayonet (Type ‘BNC’ shown) Threaded (Type ‘N’ shown) Figure 3-1. Coaxial Connector Examples The types of coaxial cables used by Comtech EF Data are ‘BNC’, ‘TNC’, ‘N’, ‘F’, and ‘SMA’. Coaxial...
  • Page 55 CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.1.1.1 Type ‘BNC’ BNC plugs and jacks feature a Bayonet Coupling design. 3.1.1.2 Type ‘TNC’ TNC plugs and jacks feature a Threaded Coupling design similar to Type ‘N’, Type ‘F,’ and Type ‘SMA’ connectors.

  • Page 56: Figure 3-2. D-Subminiature Connector Examples

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.1.2 D-Subminiature Cable Connections Type ‘D’ Connection Type Example Chassis Receptacles: Female (top) Male (bottom) Type ‘D’ Cable with Jack Screws (female shown) Figure 3-2. D-Subminiature Connector Examples D-Subminiature connectors are also called Type ‘D’ or ‘D-Sub’ connectors. The connector pair features multiple rows of pins (male side) coupled to mating sockets (female side).

  • Page 57: Cabling Connections

    MN-CDM840 Rear Panel Connections Revision 3 CDM-840 Cabling Connections The CDM-840 rear panel connectors, shown here in Figure 3-3 provide all necessary external connections between the unit and other equipment. (TOP) Standard AC Unit (BOTTOM) Optional -48V DC Unit Figure 3-3. CDM-840 Cabling Connections Table 3-1 summarizes the available connectors, grouped according to service function.

  • Page 58: If Connector Group

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.2.1 IF Connector Group CAUTION – THERE MAY BE DC VOLTAGES PRESENT ON THE TYPE ‘N’ TX AND RX IF CONNECTORS, UP TO A MAXIMUM OF 48 VOLTS. THE CONNECTOR LED LABELED ‘DC!’...

  • Page 59: Terrestrial Data Connector Group

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.2.2 Terrestrial Data Connector Group 3.2.2.1 ‘G.703 | OUT / IN’ Connectors Connector Type Name Description G.703 | OUT BNC female G.703 | IN 3.2.2.2 ‘ETHERNET | TRAFFIC | GE’ (Gigabit Ethernet) Connector (RJ-45F)

  • Page 60: Utility Connector Group

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.2.3 Utility Connector Group 3.2.3.1 ‘ETHERNET | MANAGEMENT | FE’ (Fast Ethernet) Connector (RJ-45F) Connector Type Name Description RJ-45 female modular jack ETHERNET | TRAFFIC | FE In/Out • This interface operates at 10/100 Mbps, half and full duplex, auto-negotiating.

  • Page 61: Console' Interface Connector (Db-9M)

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.2.3.3 ‘CONSOLE’ Interface Connector (DB-9M) Use this interface for EIA-232 communications. It is intended for connection to an M&C computer or VT (Video Terminal) device. Connector Type Name Description Type ‘D’ 9-pin male...

  • Page 62: Alarms' Interface Connector (Db-15M)

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.2.3.4 ‘ALARMS’ Interface Connector (DB-15M) Connector Type Name Description Type ‘D’ 15-pin male ALARMS In/Out Pin 2 of this connector provides an analog signal to aid antenna pointing or for driving step-track equipment. The analog signal will be zero volts when the unit is not locked to a carrier.

  • Page 63: Cdm-840 Ground And Power Connections

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 CDM-840 Ground and Power Connections 3.3.1 Common Chassis Ground Interface (TOP) Standard AC Unit (BOTTOM) Optional -48V DC Unit Figure 3-4. Chassis Ground Interface Use the #10-32 stud, located adjacent to the power interface (Figure 3-4), for connecting a common chassis ground among equipment.

  • Page 64: 230V Alternating Current (Ac) Power Interface (Standard)

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.3.2 115V/230V Alternating Current (AC) Power Interface (Standard) Feature Description On / Off Switch Press-fit Fuse Holder IEC Three-prong Connector AC Power Specifications 40W maximum, 20W typical (without BUC) Input Power...

  • Page 65: Ac Operation - Replace The Fuses

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.3.2.2 AC Operation – Replace the Fuses For AC operation, the unit uses two common 5mm x 20mm Slow-blow fuses – one each for line and neutral connections. The fuses are contained on the rear panel in a fuse holder that is press- fit into the body of the IEC power module (Figure 3-7).

  • Page 66: 48V Direct Current (Dc) Power Interface (Optional)

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.3.3 -48V Direct Current (DC) Power Interface (Optional) Feature Description On / Off Switch Screw-in Fuse Holders / Receptacles Power Terminal Block DC Power Specifications 25W (typical) Input Power 245W (maximum with BUC)

  • Page 67: Dc Operation - Replace The Fuses

    CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 3.3.3.2 DC Operation – Replace the Fuses For DC operation, the unit requires two different fuses. The fuses are located on the rear panel in the individual screw-in receptacles found below the terminal block (Figure 3-10).
  • Page 68 CDM-840 Remote Router MN-CDM840 Rear Panel Connections Revision 3 Notes: 3–16...

  • Page 69: Chapter 4. Updating Firmware

    Use Windows Command-line to transfer, via File Transfer Protocol (FTP), the extracted firmware files from the User PC to the CDM-840 standby firmware image. • Use the CDM-840 HTTP (Web Server) Interface to configure the modem to operate using the updated firmware image. 4–1...

  • Page 70: Getting Started: Prepare For The Firmware Download

    Web browser (e.g., Internet Explorer); and a terminal emulator program (e.g., Tera Term or HyperTerminal). • A CAT5 Ethernet cable to connect the PC Ethernet Port to the CDM-840. • A 9-pin serial cable to connect the PC serial port to the CDM-840.
  • Page 71 Alternately, use the CDM-840 HTTP Interface to obtain the firmware information. • On the PC – Use a Web browser (e.g., Internet Explorer) to log in to the CDM-840 HTTP Interface and open the Admin | Firmware page. Then, make note of the Slot #1 and Slot #2 firmware loads: See Chapter 6.
  • Page 72 CDM-840 Remote Router MN-CDM840 Updating Firmware Revision 3 There are several ways you may use create a temporary folder on a Windows-based PC: a) Use the Windows Desktop to create and rename the temporary folder. • Right-click anywhere on the desktop to open the popup submenu, and then select New >...
  • Page 73 CDM-840 Remote Router MN-CDM840 Updating Firmware Revision 3 • Right-click the “New Folder” folder name, and then rename this folder to “temp” or some other convenient, unused name. d) Use Windows Command-line to create the temporary folder. • First, click [Start] on the Windows taskbar, and then click the ‘Run...’ icon (or, depending on Windows OS versions prior to Windows 95, click the ‘MS-DOS...

  • Page 74: Download And Extract The Firmware Update

    CDM-840 Remote Router MN-CDM840 Updating Firmware Revision 3 Download and Extract the Firmware Update Do these steps: 1. Acquire the firmware update archive file from Comtech EF Data Product Support. • About Firmware Numbers, File Versions, and Formats: The Comtech EF Data Web site catalogues its firmware update files by product type (e.g., router,...
  • Page 75 CDM-840 Remote Router MN-CDM840 Updating Firmware Revision 3 • (If not already done with File Download > [Open]) Extract the firmware files from the downloaded *.exe or *.zip archive file with the user-supplied utility program: o Double-click on the archive file name, and then follow the prompts provided by the user-supplied utility program.

  • Page 76: Perform The Ethernet Ftp Upload Procedure

    Serial Remote Control – Type the “<0/IPA?” remote query (without quotes) at the CDM-840 Serial Interface CDM-840> command prompt. The unit returns the configured Management IP Address: >0000/IPA=192.168.1.12/24 (default) o CDM-840 HTTP Interface – View the IP Address/CIDR Mask entry on the ‘Configuration | Interface | Ethernet | FE’ page: 4–8...
  • Page 77 The response should confirm whether or not the unit is properly connected and communicating. 2. Use Command-line to transfer (FTP) the files from the User PC to the CDM-840: • Type "ftp xxx.xxx.xxx.xxx" (where ‘xxx.xxx.xxx.xxx’ denotes the unit Management IP Address).
  • Page 78 XX seconds” – the time count decrements to 0 seconds before the unit reboots. After the reboot, login is required once again to resume use of the HTTP Interface. The CDM-840 is now operating with its latest firmware. The firmware update process is now complete.

  • Page 79: Chapter 5. Fast Activation Procedure

    PROCEDURE FAST Overview The CDM-840 Remote Router incorporates a number of optional features. In order to permit a lower initial cost, you may purchase the unit with only the desired features enabled. If you wish to upgrade the functionality of a unit at a later date, Comtech EF Data provides Fully Accessible System Topology (FAST), which permits the purchase and activation of options through special authorization codes.

  • Page 80: Fast Activation Via The Http Interface

    Sect. 6.3.2.3 Admin | FAST (Chapter 6. ETHERNET-BASED REMOTE PRODUCT MANAGEMENT) Use the HTTP Interface ‘Admin | FAST’ page to manage CDM-840 FAST Features. This page provides scrollable list boxes that display the availability and activation status for all FAST Features.

  • Page 81: 5.2.1 Fast Configuration

    CDM-840 Remote Router MN-CDM840 FAST Activation Procedure Revision 3 5.2.1 FAST Configuration The read-only table in this section displays the CDM-840 available FAST Features and the operational status for each option: Column Description Option This column lists each available FAST Feature.

  • Page 82: 5.2.2 Fast Upgrade

    Use the FAST Configuration table to view the currently installed features. Any options that appear as Disabled in the table’s Status column may be purchased as a FAST upgrade. The serial number of the CDM-840 is required by Comtech EF Data when ordering FAST option upgrades.

  • Page 83: Chapter 6. Ethernet-Based Remote Product Management

    REMOTE PRODUCT MANAGEMENT Overview Ethernet-based Remote Product Management of the CDM-840 is available using the rear panel ‘ETHERNET | MANAGEMENT | FE’ 10/100 Fast Ethernet M&C port. 1) YOU MAY PROCEED WITH ETHERNET-BASED REMOTE PRODUCT MANAGEMENT (SNMP OR HTTP), ASSUMING THAT: •...

  • Page 84: Ethernet Management Interface Protocols

    Management IP Address. You may obtain this information via use of a terminal emulator connected to the CDM-840 rear panel, 9-pin serial ‘CONSOLE’ port. As shown, a number of operational parameters (including the unit factory-default IP addresses) are displayed on the CDM-840 Serial Interface upon power-up of the unit.

  • Page 85: 6.2.2 Snmp Interface

    The managed device. This includes the CDM-840 Remote Router. • The SNMP Agent. The software that runs on the CDM-840. The CDM-840 SNMP Agent • supports both SNMPv1 and SNMPv2c. The user-supplied Network Management System (NMS). The software that runs on the •...

  • Page 86: Snmp Community Strings

    The CDM-840 uses Community Strings as a password scheme that provides authentication before gaining access to the CDM-840 Agent MIBs. They are used to authenticate users and determine access privileges to the SNMP agent.

  • Page 87: Http Interface - Operational Features

    (BOTTOM) Enhanced Viewing Mode Figure 6-2. CDM-840 Remote Router Virtual Front Panel The top of every page in the CDM-840 HTTP Interface features a read-only ‘Virtual Front Panel’ (VFP). The interface appearance differs based on the selected viewing mode – Default or Enhanced Viewing Mode (Figure 6-2): •...

  • Page 88: Virtual Front Panel Leds

    • At left, the VFP reports the status of the unit. In either viewing mode, the VFP updates the unit operation indicators in real time. In Enhanced Mode, the VFP emulates the CDM-840 front panel LEDs (see Sect. 6.2.3.2.1.1). •...

  • Page 89: Navigation

    LINK/ACTIVITY Traffic Ethernet is not connected. 6.2.3.2.2 Navigation The CDM-840 HTTP Interface provides navigation aids at the top of each page, just below the Virtual Front Panel: • The Default viewing mode uses page hyperlinks. After you click a navigation hyperlink, you may click an available primary page hyperlink.

  • Page 90: Page Sections

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.2.3.2.3 Page Sections Each page features one or more sections. The title at the upper-left corner of each page or page section provides indicates its operational features. Each section can feature editable fields, action buttons, and read-only displays that are specific to that section.

  • Page 91: Http Interface Menu Tree Diagram

    Block Down Converter (LNB) is installed and is recognized as operational. Figure 6-3 Illustrates the menu hierarchy for the CDM-840 HTTP Interface. It features five navigation tabs (shown in blue) located below the VFD at the top of each page. Primary page tabs (green) and nested page tabs (yellow or grey) grant access to individual web pages.

  • Page 92: Http Interface

    Ethernet-based Remote Product Management Revision 3 HTTP Interface Page Descriptions 1) Access to and availability of certain CDM-840 HTTP Interface pages depends upon the optional FAST Features purchased for operation, and/or the detected presence of auxiliary products (e.g., VIPERSAT Management System, Redundancy Switches, LNCs or BUCs, etc.) installed and configured for use with the CDM-840.

  • Page 93: Home | Contact

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.1.2 Home | Contact For all product support, please call: +1.240.243.1880 +1.866.472.3963 (toll free USA) Figure 6-5. Home | Contact Page 6–11...

  • Page 94: Admin (Administration)

    Click the Access, SNMP, FAST, Firmware, Auto Logout, or VMS tab to continue. 6.3.2.1 Admin | Access The Administrator must use this page to manage the CDM-840 HTTP Interface user access settings. Figure 6-6. Admin | Access Page User Access •...

  • Page 95: Admin | Snmp

    Ethernet-based Remote Product Management Revision 3 6.3.2.2 Admin | SNMP Sect. 6.2.2 SNMP Interface The Administrator must use this page to manage the CDM-840 SNMP (Simple Network Management Protocol) settings. Figure 6-7. Admin | SNMP Page SNMP Configuration • Enter an SNMP Trap Destination IP Address in the form XXX.XXX.XXX.XXX.

  • Page 96: Admin | Fast

    6.3.2.3 Admin | FAST The CDM-840 has a number of optional features that you may activate after you purchase their unique authorization codes from Comtech EF Data Product Support. Use this page to enter these Fully Accessible System Topology (FAST) Access Codes.

  • Page 97: Admin | Firmware

    Slot #1 as the designated active running firmware image, will not update until after the unit is rebooted. System Reboot Click [Reboot] to reboot the CDM-840. Once the unit reboots, you must log in once again to resume use of the HTTP Interface. See the Utility | Reboot page (Sect. 6.3.5.3) for further information.

  • Page 98: Admin | Auto Logout

    Auto Logout, the active session terminates if the unit remains idle (i.e., when no user activity occurs) beyond your designated Logout Time. You must then log in with a valid user name and password to resume use of the CDM-840 HTTP Interface. Figure 6-10. Admin | Auto Logout Page...

  • Page 99: Admin | Vms

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.2.6 Admin | VMS VMS v3.x.x VIPERSAT Management System User Guide (CEFD P/N MN/22156) Figure 6-11. Admin | VMS Page Management System Configuration The valid operating ranges for items in this section are provided in parentheses.
  • Page 100 CTOG-250 and automatically distributed to all CDM-840s that are locked and receiving the Outbound Carrier from the CTOG-250. Once the CDM-840 is registered in the Vipersat network, the VMS takes full management control of the Data Rate, Symbol Rate, Frequency, and ModCod demodulator parameters.

  • Page 101: Configuration

    Use this page to configure the rear panel ‘ETHERNET | MANAGEMENT | FE’ 10/100 Fast Ethernet M&C port. Note that this port serves as the dedicated Ethernet-based monitor and control interface between the CDM-840 and the User PC. Figure 6-12. Configuration | Interface | FE Mgt Page FE –...

  • Page 102: Configuration | Interface | Ge

    • Link Configuration – Use the drop-down list to select the line speed and duplex setting for the CDM-840 FE interface. The available settings are Auto*, 10 BaseT/Half Duplex, 10 BaseT/Full Duplex, 100 BaseT/Half Duplex, or 100 BaseT/Full Duplex. * Auto is the recommended configuration selection.
  • Page 103 VLAN Trunk Mode is the default mode for BPM where all packets (with and without VLAN tags) arriving at the CTOG-250 and CDM-840 pass through the system without modification. A trunked port can pass two or more VLANs on the interface.

  • Page 104: Configuration | Interface | E1

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.1.3 Configuration | Interface | E1 Pages Appendix K. RAN/WAN OPTIMIZATION These pages are functional only when the “G.703 E1 Interface / RAN Optimization” FAST and hardware options are installed and activated.
  • Page 105 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Hub RAN Optimizer IP Address – Enter an IP address in the form XXX.XXX.XXX.XXX. • Hub RAN Optimization E1 Port ID – Enter a numeric identification string for the rear panel ‘G.703 | IN / OUT’...

  • Page 106: Configuration | Interface | E1 | Time Slots

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.1.3.2 Configuration | Interface | E1 | Time Slots Figure 6-15. Configuration | Interface | E1 | Time Slots Page Time Slot Configuration Time Slots may be selected for transmission or reception up to the maximum dictated by the selected transmit or receive data rate, and may be selected in prioritized order.

  • Page 107: Configuration | Wan

    Configuration | WAN | Demod Pages Click the Config or ACM tab to continue. 6.3.3.2.1.1 Configuration | WAN | Demod | Config Use this page to configure CDM-840 Rx demodulator operations. Figure 6-16. Configuration | WAN | Demod | Config Page 6–25...
  • Page 108 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Demodulator The valid operating range for each item in this section is noted in parentheses. • Data Rate (read-only) – This section displays the data rate, which is a snapshot of the MODCOD currently being received.
  • Page 109 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Pilots (read-only) – Pilots operation is identified here as Off or On. • Spectrum Invert (read-only) – Spectrum Inversion operation is identified here as either Normal or Rx Spectrum Inverted.
  • Page 110 WAN Label in Entry #1 for each CDM-840 across the network, and then enable CDRP on the CTOG-250. The associated Route to WAN Label will be automatically updated and maintained.
  • Page 111 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Enter the Rx RF Frequency in MHz. Click [Submit]. Upon submission, if you enter the LNB LO Frequency, the resulting Rx RF Frequency displays. If the LNB LO Frequency is left at the default configuration of zero, the Rx RF Frequency will not be calculated.

  • Page 112: Configuration | Wan | Demod | Acm (Adaptive Coding And Modulation)

    Outbound ACM allows you to configure a CTOG-250 Comtech Traffic Optimization Gateway to dynamically adjust the DVB-S2 MODCODs that are sent to each CDM-840 Remote Router, based on the conditions at that remote site. These conditions include antenna size, look angle and satellite band, as well as the current environmental conditions.
  • Page 113 • Rx ACM Enable – Identifies ACM operation on the CTOG-250 as Enabled or Disabled. • Time Since Last Controller Announcement – Amount of time in seconds since the CDM-840 received an announcement message from the CTOG-250. • Max Time Since Last Controller Announcement – Maximum amount of time since the last announcement message was received from the CTOG-250.

  • Page 114: Configuration | Wan | Mod (Modulator)

    Configuration | WAN | Mod (Modulator) Pages Click the Config, ACM, or DPC tab to continue. 6.3.3.2.2.1 Configuration | WAN | Mod | Config Use this page to configure CDM-840 Tx modulator operations. Figure 6-18. Configuration | WAN | Mod | Config Page Modulator 6–32...
  • Page 115 Carrier State settings. Click [Submit] to save. The valid operating range for each item in this section is noted in parentheses: • Data Rate (16 to 15343 kbps) – Enter The CDM-840 Tx Data Rate in kbps. Click [Submit] to save. When Adaptive Coding and Modulation (ACM) is set to Enable, the Data Rate is set automatically.
  • Page 116 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Power Level (-40 to 0 dBm) – Enter the Tx power level in dBm. • Carrier State – Use the drop-down list to select the Tx Carrier State as Off or On.
  • Page 117 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 The valid operating range for each item in this section is noted in parentheses. • Tx RF Frequency (0 to 67150 MHz) – This is the frequency at which the terminal transmits to the satellite.

  • Page 118: Configuration | Wan | Mod | Acm

    VersaFEC ACM requires Version 1.3.2 (or higher) firmware, and the appropriate FAST code for the maximum operating symbol rate. Use this page to configure CDM-840 Tx ACM operations. Figure 6-19. Configuration | WAN | Mod | ACM Page Tx ACM Configuration •...
  • Page 119 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Click [Submit] to save. Tx ACM Status (List all 880s) From left to right: Column Description Seconds since last LQRM Amount of time (in seconds) since an LQRM (Link Quality Report Message) message was received from the associated CDD-880 Multi Receiver Router.

  • Page 120: Configuration | Wan | Mod | Dpc

    (where the power level is to be adjusted). This message contains link quality status, which is directed to the transmit site on timed intervals, updating the link state. Use this page to configure and monitor CDM-840 Tx Dynamic Power Control operations. Figure 6-20. Configuration | WAN | Mod | DPC Page Tx Dynamic Power Control (DPC) Configuration •...
  • Page 121 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Rated Maximum Power (read-only) – This displays the highest value that DPC will raise the power to during normal operation. This value is calculated from the references, Maximum Data Rate, and Tx Power Margin.

  • Page 122: Configuration | Wan | Qos (Quality Of Service)

    QoS Mode. All commonality / differences in page appearance between QoS Modes is noted accordingly. Comtech EF Data strongly recommends that you do NOT operate the CDM-840 with QoS Control Mode = Off. When QoS Control Mode = Off there is no traffic shaping or filtering.

  • Page 123: Page Functionality Common For All Qos Control Modes

    “QoS Mode is Off.” • DiffServ – This mode allows the CDM-840 to operate in Differentiated Services Mode to make it fully compliant to the Differentiated Services QoS RFC (Request For Comments) standards.
  • Page 124 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Change (modify) an existing group – Use the middle row text boxes to make changes to the active Index (group). Click [Change] to save. The Group Table will update accordingly.
  • Page 125 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Click VLAN to configure a VLAN ID assigned to the group. All traffic with the configured VLAN ID will be routed through the QoS Group. If more than one QoS Group has the same VLAN ID, then the subnet will be used to match the packet to the correct QoS Group.

  • Page 126: Page Functionality Specific To Active Qos Mode

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Example #2 QoS Subnet 10.1.0.0/16 Remote 1 Management IP Address 192.168.1.1 Remote 1 Reported Routes 10.1.1.0/27 Remote 2 Management IP Address 192.168.1.1 Remote 2 Reported Routes 10.1.2.0/24 Result Remote 192.168.1.1 and 192.168.2.1 will be added...
  • Page 127 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 When QoS Control Mode = DiffServ, you have the option of configuring attributes for each group (the acceptable ranges for each parameter are shown in brackets). Note the following (from left to right):...
  • Page 128 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 When QoS Control Mode = Min/Max: When QoS Control Mode = Pri-Weighted: • Add a Rule – Enter your desired parameters as needed, and click [Add Rule] to add the rule to the Per Group QoS Rule table.
  • Page 129 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Column Description Max BW Assign a value to limit the flow to this maximum utilized bandwidth; otherwise, you may select the default of no bandwidth restriction. WRED Use the drop-down list to Disable or Enable Weighted Random Early Detection.

  • Page 130: Configuration | Wan | Label

    CTOG-250 Route Table. Note that the preferred method of operation (as required for ACM/VCM Operation) is to first configure a unique WAN Label in Entry #1 for each CDM-840 across the network, and then enable CDRP on the CTOG-250. The associated Route to WAN Label will be automatically updated and maintained.

  • Page 131: Configuration | Wan | Compression

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.2.5 Configuration | WAN | Compression Use this page to configure the Payload and Header Compression feature, if enabled. Figure 6-23. Configuration | WAN | Compression Page Click the (Link to Compression Statistic page) hyperlink to access the Status | Statistics | Compression page (Sect.

  • Page 132: Configuration | Wan | Buc (Block Up Converter)

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.2.6 Configuration | WAN | BUC (Block Up Converter) This page is operational only when an optional BLOCK UP CONVERTER is installed. Use this page to configure BUC parameters, and to display the BUC status for L-Band operation.
  • Page 133 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Click [Submit BUC Control] to save. BUC Status When the presence of BUC Power Supply is detected, it is acknowledged here and its voltage and current information is continuously monitored and is provided on a read-only basis: •...

  • Page 134: Configuration | Wan | Lnb (Low Noise Block Down Converter)

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.2.7 Configuration | WAN | LNB (Low Noise Block Down Converter) This page is operational only when an optional LOW-NOISE BLOCK DOWN CONVERTER is installed. Use this page to configure LNB parameters, and to display the LNB status for L-Band operation.

  • Page 135: Configuration | Network

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.3 Configuration | Network Pages Use the Network pages to configure network-based operating parameters. Click the Routing, ARP, Working Mode, or DNS tab to continue. 6.3.3.3.1 Configuration | Network | Routing Pages Click the Routes, IGMP, or DHCP tab to continue.
  • Page 136 Click [Add Entry] when done. The index automatically increments to the next available number when the new route is added. When in Router Mode, the CDM-840 will not transmit a multicast address in the Internet control range (224.0.0.0 to 224.0.1.255). It filters the packets.

  • Page 137: Configuration | Network | Routing | Igmp

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.3.1.2 Configuration | Network | Routing | IGMP When operating a network in Bridge Point-to-Multipoint (BPM) mode, user traffic will pass through the various traffic ports; however, the management of the network is required to be through the routed Management Network.
  • Page 138 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Query Interval (1 to 60) – Enter a value, in seconds. The default is 1 second. This is the interval between general queries sent by the unit. By varying the query interval, the administrator may tune the number of IGMP messages on the subnet;...

  • Page 139: Configuration | Network | Routing | Dhcp

    When a device on the CDM-840 network issues a DHCP request, it is relayed to the DHCP server as specified by the "Relay IP Address". The DHCP response is then sent directly to the requesting device.

  • Page 140: Configuration | Network | Arp

    Revision 3 6.3.3.3.2 Configuration | Network | ARP Use this page to configure the CDM-840 ARP (Address Resolution Protocol) parameters. Figure 6-29. Configuration | ARP Page Add Static ARP Enter the desired IP and MAC addresses. Click [Add Entry] when done. The Index column automatically increments to the next available number when the specified static ARP entry is added to the ARP Table.

  • Page 141: Configuration | Network | Working Mode

    Working Mode Select the desired working mode: • In Router Mode, the traffic ports of the CTOG-250, CDD-880, and CDM-840 are configured to function as a Router. • In BPM Mode, all L2/L3/L4 protocols such as VLAN, MPLS, IPv6, OSPF, and BGP will flow through the network as they would through an off-the-shelf Ethernet Switch.

  • Page 142: Configuration | Network | Dns

    Note the following: • When the CDM-840 receives a DNS query at one of its Ethernet ports, a DNS cache lookup is performed in the local DNS cache. If the entry is found, a DNS response message is immediately returned to the requesting entity with a time-to-live value of 10 seconds. If no match is found, the request packet is forwarded to the Hub.

  • Page 143: Configuration | Ecm (Entry Channel Mode)

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.4 Configuration | ECM (Entry Channel Mode) 1) The Configuration | ECM page is operational only when the optional VIPERSAT MANAGEMENT SYSTEM (VMS) is installed and enabled. 2) ECM uses Demod 1 of the CDD-880 as the ALOHA channel.
  • Page 144 (TAP) transmitted by the CDD-880 to the CDM-840 or CDM-840 Remote Routers in the ECM group. It is the product of the number of slots and the slot length (consisting of the preamble, data slot size, and guard band).
  • Page 145 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Aloha State – The Aloha State indicates the current state of this unit during the ECM cycle: Unit State Description Idle Unit is not transmitting; either inactive or waiting for switching assignment.

  • Page 146: Configuration | Dscpc (Dynamic Single Carrier Per Channel)

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.3.5 Configuration | dSCPC (Dynamic Single Carrier per Channel) This page is operational only when the optional dSCPC FAST feature and VIPERSAT MANAGEMENT SYSTEM (VMS) is installed and enabled. Use the optional dSCPC (Dynamic Single Carrier per Channel) FAST feature to enable dynamic allocation and sharing of bandwidth among users.
  • Page 147 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Excess Capacity (0 to 100) – Enter the Excess Capacity data rate percentage to be added to the SCPC data rate. This setting makes additional bandwidth available for when demand arises while minimizing Step Up switching events.

  • Page 148: Status

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.4 Status Pages The Status pages provide status, event logging, and operational statistics windows. Click the Statistics or Monitor tab to continue. 6.3.4.1 Status | Statistics Pages Click the Traffic, Network, Compression, QoS, E1, or Trending tab to continue.
  • Page 149 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Statistics Control Click [Clear Eth Stats], [Clear Mod Stats], [Clear Demod Stats], [Clear Drops (QoS Stats)], [Clear All Stats], or [Refresh]. From left to right: Action Button Function [Clear Eth Stats] Click to clear entries from the Ethernet Statistics table.

  • Page 150: Status | Statistics | Network / Router

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Demod Statistics From left to right: Column Description Packets Received Packets received. UC Packets Received Unicast packets received. MC Packets Received Multicast packets received. Corrupted Rx Packets Packets dropped due to corruption over the WAN.

  • Page 151: Status | Statistics | Compression

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Interface / Router / Management Counters For each section, click [Refresh] to update the section with its latest available statistics. 6.3.4.1.3 Status | Statistics | Compression The Tx Header and Payload Compression statistics are functional only when Tx Header and/or Payload Compression are enabled.

  • Page 152: Status | Statistics | Qos

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.4.1.4 Status | Statistics | QoS Appendix J. RETURN GROUP QoS (QUALITY SERVICE) The appearance of this page changes depending on the active QoS Control Mode. The top portion of this page provides common functionality for all QoS modes. The bottom portion of this page changes depending on the active QoS Control Mode.

  • Page 153: Page Functionality Common For All Qos Control Modes

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.4.1.4.1 Page Functionality Common for all QoS Control Modes The page content that follows is available in all QoS Modes. You may click the (to QoS Configuration page) hyperlink, located at the top of the page, to select a different QoS Mode or manage your QoS groups (Sect.

  • Page 154: Page Functionality Specific To Active Qos Control Mode

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Column Description This is the Committed Information Rate (in kilobits per second) as averaged over • CIR Avail Last 1 Min the specified timeframe. • CIR Avail Last 15 Min •...

  • Page 155: Status | Statistics | E1 Pages (Cdm-840 Only)

    Ethernet-based Remote Product Management Revision 3 6.3.4.1.5 Status | Statistics | E1 Pages (CDM-840 only) Use these read-only pages to view cumulative CDM-840 E1 traffic information. Click the Transmit or Receive tab to continue. 6.3.4.1.5.1 Status | Statistics | E1 | Transmit Figure 6-38.

  • Page 156: Status | Statistics | E1 | Receive

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Type – Slots are detected as Idle or Active. Idle time slots, once detected, do not utilize bandwidth. Click [Refresh] to update this section with its latest available statistics.
  • Page 157 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Description Counter Tallies the number of times that the jitter buffer has overflowed (indicates too Jitter Buffer Overflow Count much data – jitter latency is not set high enough if count increases consistently).

  • Page 158: Status | Statistics | Trending (Cdm-840 Only)

    Status | Statistics | Trending (CDM-840 only) Appendix K. RAN/WAN OPTIMIZATION This page provides an updating graphical representation of several CDM-840 IP traffic handling statistics. When the presence of the optional E1 FAST feature is detected and enabled, E1 RAN Optimization trending characteristics are also provided.
  • Page 159 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 To initialize the page: Select the Time Span for the graphs as 20 minutes, 3 Days, or 30 Days. Then, select Auto Update if you wish to set the trending data refresh interval from the default of 10 minutes to 5 seconds.

  • Page 160: Status | Monitor

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.4.2 Status | Monitor Pages The Monitor pages provide event logging, and operational status windows. Click the Events or Alarms tab to continue. 6.3.4.2.1 Status | Monitor | Events Use this read-only page to view the unit alarms summary, input port status, plus a scrollable window that displays any events and alarms as logged by the unit during normal operation.

  • Page 161: Status | Monitor | Alarms

    CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 6.3.4.2.2 Status | Monitor | Alarms This page indicates whether or not an event or alarm has been logged for a specific item since the logging buffer was last cleared. Use this page to view the current unit operating status, and to control how the alarm masking parameters are processed by the unit.
  • Page 162 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 State Means Description Green “No Alarm” This indicates that no event or alarm has been logged since the logging buffer was last cleared – status is OK.. Yellow “Previously Alarmed”...

  • Page 163: Utility

    Figure 6-43. Utility | Utility Page Modem • Unit Name – Enter a product label (e.g., CDM-840) here. • System Contact / System Location – Enter the e-mail and telephone contact information for Comtech EF Data Product Support here.
  • Page 164 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 • Set Time (hh:mm:ss) – Use the HH:MM:SS time format to set the time, where HH=hour [00- 23]; MM=minutes [00-59]; and SS=seconds [00-59]. • Set Date (dd/mm/yy) – Use the DD/MM/YY European time format to set the date, where DD=day [01-31];...
  • Page 165 The CDM-840 does not accept IP traffic while a BERT is in progress. Redundancy Redundancy is available only when an optional Comtech EF Data CRS-170A or CRS-180 Redundancy Switch is installed, and the CDM-840 is recognized as part of a 1:1 or 1:N redundant pair. Console Configuration •...

  • Page 166: Utility | Carrier Id

    Figure 6-44. Utility | Carrier ID Page Carrier ID • Mgmt MAC Address – This is the read-only MAC Address for the CDM-840’s M&C card. • Latitude – Set the modem’s physical location in Latitude in the form DDMM.mmC, where: o DD = degrees (00 to 90);...

  • Page 167: Utility | Reboot

    6.3.5.3 Utility | Reboot Use this page to perform a soft reboot of the CDM-840. Note that the function of this page is identical to the System Reboot section of the Admin | Firmware page (Sect. 6.3.2.4). Figure 6-45. Utility | Reboot Page System Reboot Click [Reboot] to reboot the unit.
  • Page 168 CDM-840 Remote Router MN-CDM840 Ethernet-based Remote Product Management Revision 3 Notes: 6–86...

  • Page 169: Chapter 7. Serial-Based Remote Product Management

    Chapter 7. SERIAL-BASED REMOTE PRODUCT MANAGEMENT Overview Serial-based Remote Product Management of the CDM-840 Remote Router is available using the CDM-840 rear panel ‘CONSOLE’ port. 1) THE SERIAL-BASED REMOTE PRODUCT MANAGEMENT INTERFACE IS INTENDED TO PROVIDE TWO IMPORTANT CAPABILITIES: •...
  • Page 170 O THE PC SERIAL PORT IS CONNECTED TO THE CDM-840 REAR PANEL ‘CONSOLE’ PORT WITH A USER-SUPPLIED SERIAL CABLE. O THE PC ETHERNET PORT IS CONNECTED TO THE CDM-840 REAR PANEL ‘ETHERNET | MANAGEMENT | FE’ 10/100 FAST ETHERNET PORT WITH A USER-SUPPLIED HUB, SWITCH, OR DIRECT ETHERNET CABLE CONNECTION.

  • Page 171: Remote Commands And Queries Overview

    CDM-840 Serial Remote Product Management is available through the EIA-232 operational interface, where the ‘Controller’ device (the user PC or an ASCII dumb terminal) is connected directly to the ‘Target’ device (the CDM-840, via its DB-9M ‘CONSOLE’ port). This connection makes possible serial remote monitor and control (M&C) of the system through its CDM-840 Serial Interface.

  • Page 172: Packet Structure

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 For Serial Remote Control, all issued commands (Controller-to-Target) require a response (Target-to-Controller). This response is either to return data that has been queried by the Controller, or to confirm the Target’s receipt of a command to change the Target’s configuration.

  • Page 173: Start Of Packet

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.2.2.1 Start of Packet • Controller-to-Target: This is the character ‘<’ (ASCII code 60). • Target-to-Controller: This is the character ‘>’ (ASCII code 62). The ‘<’ and ‘>’ characters indicate the start of packet. They may not appear anywhere else within the body of the message.

  • Page 174: 7.2.2.5.1 Controller-To-Target Instruction Code Qualifiers

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.2.2.5.1 Controller-to-Target Instruction Code Qualifiers The only permitted characters are ‘=’ and ‘?’. = (ASCII Code 61) This character is used as the Assignment Operator (AO). It establishes that the Instruction Code that precedes it is issued as a command to assign or configure operation.

  • Page 175: Optional Message Arguments

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 ? (ASCII Code 63) If the Controller issues a command to set a parameter to a particular value, and the value sent is not valid, the Target then acknowledges the message and responds with ‘?’. This indicates that there was an error in the message sent by the Controller.

  • Page 176: End Of Packet

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.2.2.7 End of Packet • Controller-to-Target: This is the ‘Carriage Return’ ([CR]) character (ASCII code 13). • Target-to-Controller: This is the two-character sequence ‘Carriage Return’, ‘Line Feed’ ([cr][lf]) (ASCII codes 13 and 10). Both indicate the valid termination of a packet.

  • Page 177: Remote Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Remote Commands and Queries 7.3.1 Table Indexes Notes: 1) Index Columns – Where Column ‘C’=Command, and Column ‘Q’=Query, columns marked ‘X’ designate the instruction code as Command only, Query only, or Command or Query.
  • Page 178 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Sect. 7.3.5 Transmit (Tx) BERT Command or Query CODE PAGE CODE PAGE CODE PAGE 7-17 Sect. 7.3.6 Receive (Rx) BERT Command or Query CODE PAGE CODE PAGE CODE PAGE 7-17 Sect.
  • Page 179 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Sect. 7.3.10 Bulk Configuration String Commands CODE PAGE CODE PAGE CODE PAGE 7-29 7-29 Sect. 7.3.11 Redundancy Commands and Queries CODE PAGE CODE PAGE CODE PAGE 7-30 7-30 Sect. 7.3.12 Vipersat Management System (VMS) Commands and Queries...

  • Page 180: Transmit (Tx) Parameters Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.2 Transmit (Tx) Parameters Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 181 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...

  • Page 182: Receive (Rx) Parameters Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.3 Receive (Rx) Parameters Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 183 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...

  • Page 184: Demodulator Status Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.4 Demodulator Status Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...

  • Page 185: Transmit (Tx) Bert Command Or Query

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.5 Transmit (Tx) BERT Command or Query Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 186 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 187 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 188 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...

  • Page 189: Lnb (Low-Noise Block Down Converter) Parameters Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.8 LNB (Low-Noise Block Down Converter) Parameters Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code...

  • Page 190: Unit Parameters Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.9 Unit Parameters Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 191 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 192 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 193 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 194 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 195 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 196 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...

  • Page 197: Bulk Configuration String Commands

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...

  • Page 198: Redundancy Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.11 Redundancy Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...

  • Page 199: Vipersat Management System (Vms) Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.12 Vipersat Management System (VMS) Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or...

  • Page 200: Entry Channel Mode (Ecm) Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.13 Entry Channel Mode (ECM) Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or...

  • Page 201: Miscellaneous Utility Commands And Queries

    CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 7.3.14 Miscellaneous Utility Commands and Queries Command Number of Response to Query Parameter (Instruction Arguments for Description of Arguments Command (Instruction Response to Query Type Code Command or (Note that all arguments are ASCII numeric codes from 48 and 57) (Target to Code &...
  • Page 202 CDM-840 Remote Router MN-CDM840 Serial-based Remote Product Management Revision 3 Notes: 7–34...

  • Page 203: Appendix A. Reference Documentation

    Remote Router, and ODMR-840B Remote Router Board Set as the ODM-840. 2) This appendix describes features that may be monitored or controlled by the user, or otherwise processed by the CDM-840 Remote Router. For detailed reading about the operational features of the Advanced VSAT Series group of products, consult the adjunct documentation that is specified in this appendix and is available for download from Comtech EF Data’s web site (www.comtechefdata.com).

  • Page 204: Fec (Forward Error Correction) Options

    Products Group (the VersaFEC name is a trademark registered to Comtech AHA). For the CDM-840 and ODM-840 Remote Routers: The FEC method used by the remote site CDM‐840 and ODM‐840 Remote Routers depends on the direction of signal processing in use: •...

  • Page 205: Acm/Vcm (Adaptive Coding And Modulation / Variable Coding And Modulation) Operation

    CDM-840 Remote Router MN-CDM840 Appendix A Revision 3 ACM/VCM (Adaptive Coding and Modulation / Variable Coding and Modulation) Operation The VersaFEC® Adaptive Coding and Modulation (ACM) feature is a patents‐pending technology owned and developed by Comtech EF Data and Comtech AHA Enterprise Products Group.

  • Page 206: Bpm (Bridge Point-To-Multipoint) Operation

    CDM-840 Remote Router MN-CDM840 Appendix A Revision 3 BPM (Bridge Point-to-Multipoint) Operation The Advanced VSAT BPM feature functions as a Learning Ethernet Switch when the “Working Mode” is set to BPM. This makes the Advanced VSAT equipment appear as a “Sky Ethernet Switch”...

  • Page 207: Ecm (Entry Channel Mode) Operation

    CDM-840 Remote Router MN-CDM840 Appendix A Revision 3 ECM (Entry Channel Mode) Operation ECM (Entry Channel Mode) operation is available in the CDM‐840 and ODM‐840 Remote Routers, and in the CDD‐880 Multi Receiver Router. ECM is a feature based on slotted Aloha with random retransmission backoff.

  • Page 208: Dmesh (Vms Dynamic Mesh) Connectivity

    CDM-840 Remote Router MN-CDM840 Appendix A Revision 3 dMesh (VMS Dynamic Mesh) Connectivity dMesh (Dynamic Mesh) operation is available in the CDM‐840 and ODM‐840 Remote Routers, and in the CDD‐880 Multi Receiver Router. Mesh connectivity minimizes the requirement for communications that are routed through a hub and re‐routed back to the remote segments of an Advanced VSAT Network.

  • Page 209: Dpc (Vms Dynamic Power Control) Operation

    CDM-840 Remote Router MN-CDM840 Appendix A Revision 3 DPC (VMS Dynamic Power Control) Operation The DPC (Dynamic Power Control) feature, provided in Comtech EF Data’s CDM‐840 and ODM‐ 840 Remote Routers, provides a mechanism whereby remote satellite uplinks have their...
  • Page 210 CDM-840 Remote Router MN-CDM840 Appendix A Revision 3 Notes: A–8...

  • Page 211: Appendix B. Fec (Forward Error Correction) Options

    QPSK, 8PSK, 16APSK and 32APSK with concatenated Low Density Parity Code (LDPC) and Bose-Chaudhuri-Hocquenghem (BCH). • The transmit (Tx) side of the CDM-840 uses a family of short-block, very low latency, Low ® Density Parity Check (LDPC) codes called VersaFEC .

  • Page 212: Range Of Data Rates

    (0.2 to 0.5 dB) compared to the standard block. B.2.1 Range of Data Rates See Sect. 1.4 CDM-840 SPECIFICATIONS for the range of available data rates. B.2.2 BER, QEF, Eb/No, Es/No Spectral Efficiency, and Occupied Bandwidth Depending on the operating mode, the DVB standard uses different modes of specifying performance with a unit in IF Loop and Additive White Gaussian Noise (AWGN): •...

  • Page 213: Versafec (Short-Block Ldpc

    CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 VersaFEC (Short-block LDPC) While LDPC coding represents a significant development in the area of FEC and its performance is exceptional in terms of coding gain, its higher latency is considered disadvantageous in some applications.

  • Page 214: Range Of Data Rates

    15.35 Mbps B.3.1 Range of Data Rates See Sect. 1.4 CDM-840 SPECIFICATIONS for the range of available data rates. CDM-840 Rx/Tx Error Performance Characteristics For Rx DVB-S2 Operation: Figure B-2 through Figure B-5 show the guaranteed error performance characteristics of the CDM-840 while receiving with Normal frames (64,800 bits), Pilots ON.
  • Page 215 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Figure B-2. DVB-S2 QPSK Packet Error Rate versus Es/No B–5...
  • Page 216 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Figure B-3. DVB-S2 8PSK Packet Error Rate versus Es/No B–6...
  • Page 217 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Figure B-4. DVB-S2 16APSK Packet Error Rate versus Es/No B–7...
  • Page 218 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Figure B-5. DVB-S2 32APSK Packet Error Rate versus Es/No B–8...
  • Page 219 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Eb/No in dB 1E-1 Comtech VersaFEC® Codec Rate 0.488 BPSK Uncoded BPSK/QPSK 1E-2 1E-3 Rate 0.488 BPSK 1E-4 Typical performance shown - guaranteed performance curve is 0.3 dB to the right 1E-5...
  • Page 220 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Eb/No in dB 1E-1 Comtech VersaFEC® Codec Rate 0.533, 0.631, 0.706, Uncoded and 0.803 QPSK BPSK/QPSK 1E-2 Rate Rate Rate Rate 1E-3 0.533 0.631 0.706 0.803 QPSK QPSK QPSK QPSK 1E-4 Typical performance shown - guaranteed performance curves are 0.3 dB to the right...
  • Page 221 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Eb/No in dB 1E-1 Comtech VersaFEC® Codec Rate 0.642, 0.711, 0.780 Uncoded BPSK/QPSK 8-QAM 1E-2 Rate Rate Rate 0.642 0.711 0.780 8-QAM 8-QAM 8-QAM 1E-3 Uncoded 8-PSK 1E-4 1E-5 1E-6 1E-7 Typical performance show - guaranteed performance curves are 0.3 dB to the right...
  • Page 222 CDM-840 Remote Router MN-CDM840 Appendix B Revision 3 Eb/No in dB 1E-1 Comtech VersaFEC® Codec Rate 0.731, 0.780, 0.829 and 0.853 16-QAM Uncoded BPSK/QPSK 1E-2 Uncoded 16-QAM Rate Rate Rate Rate 0.731 0.780 0.829 0.853 16-QAM 16-QAM 16-QAM 16-QAM 1E-3...

  • Page 223: Appendix C. Data Collection

    Once you are properly configured for data collection, you must do these steps, in this order : 1. Sect. C.3 instructs you to obtain pre-reboot information* from the onsite CDM-840. You will use your User PC terminal emulator to perform a text capture. Use the emulator to access the CDM-840 Serial Interface, for serial communication between the CDM-840 and your User PC.
  • Page 224 MN-CDM840 Appendix C Revision 3 2. Once you gather this initial pre-reboot information, you must reboot the CDM-840 to re- initialize and restore service. 3. Once you collect the pre-reboot Serial Interface text capture file, and after the CDM-840 reboots, Sect. C.4 instructs you to you must retrieve the modem’s onboard data collection files via Ethernet connection, and transfer these files to your User PC: •...

  • Page 225: Initial Setup Of Communications Between The Cdm-840 And The User Pc

    • Display New line Rx/Tx: CR • Local Echo = ON 4. After you properly set up communications between your User PC and the CDM-840 Serial Interface, the “->” remote command prompt will display on your terminal emulator. 5. Using Windows Command-line (Start > Run... > cmd.exe), create a folder (directory) named “temp”...

  • Page 226: Collect The Pre-Reboot Diagnostic Information From The Cdm-840

    Make sure to verify that you save the file to your “temp” folder successfully before Refer to your terminal emulator program User Guide or rebooting. Help feature. You may now reboot the CDM-840 and proceed to C.4 Collect and Report the Post-Reboot Diagnostic Information from the CDM-840. C–4...

  • Page 227: Collect And Report The Post-Reboot Diagnostic Information From The Cdm-840

    Do these steps, in this order : 1. “Ping” the CDM-840 to verify the connection and communication: a) Set the IP address of the CDM-840 so that it is in the same IP Subnet as the User PC . Using the CDM-840 Serial Interface: •...
  • Page 228 Appendix C Revision 3 Type this at the Windows Command-line Step To do this: prompt: ftp>get cdm840slot0.xml Retrieve the CDM-840 configuration file. ftp>get log0 Collect the diagnostic log files (they may or may ftp>get log1 not exist). ftp>get log2 ftp>get demodulator.log Collect the traffic log files.

  • Page 229: Serial Adapter Cable Fabrication Specifications Reference

    Cable Connector Type: D-Subminiature DB-9M (Type D-Sub 9-pin Female) (Type D-Sub 9-pin Male) Use: For connection to your User PC RS-232 Serial Use: For connection to the CDM-840 Onsite Unit Port “CONSOLE” Port WIRE LIST / PINOUT WIRE LIST / PINOUT...
  • Page 230 CDM-840 Remote Router MN-CDM840 Appendix C Revision 3 Notes: C–8...

  • Page 231: Appendix D. Versafec Return Link Acm (Adaptive Coding And Modulation) Option

    Appendix D. V FEC RETURN ERSA LINK ACM (ADAPTIVE CODING MODULATION) OPTION Functional Overview VersaFEC® is a technology that is wholly owned and developed by Comtech EF Data and Comtech AHA Enterprise Products Group. VersaFEC is a registered trademark of Comtech AHA Enterprise Products Group.

  • Page 232: Background

    The best example of this is Ethernet, and this discussion is limited to schemes that employ it. The CDM-840 supports both IP and E1 (internally packetized) operation with ACM.

  • Page 233: Table D-1. The Versafec Modcod Set

    CDM-840 Remote Router MN-CDM840 Appendix D Revision 3 VersaFEC ACM VersaFEC covers a family of 18 short-block LDPC ModCods, specifically designed for low latency and ACM applications. However, the VersaFEC codes are equally well suited to Constant Coding and Modulation (CCM) applications.

  • Page 234: Table D-2. Versafec Implementation Of Acm - 100 Ksymbols/Sec Example Case

    CDM-840 Remote Router MN-CDM840 Appendix D Revision 3 Figure D-1. VersaFEC Codes vs. Constrained Capacity VersaFEC ACM Latency D.2.1 Examining the data in Table D-2, latency for each ModCod is shown for the example of VersaFEC ACM at a fixed 100 ksymbols/second rate. Of particular note is that even though the ModCods span a 7:1 variation in throughput, the latency is only varying between 25 and 34 milliseconds.

  • Page 235: Versafec Acm

    CDM-840 Remote Router MN-CDM840 Appendix D Revision 3 CDM-840 VersaFEC ACM Operation The CDM-840 provides several means for configuring VersaFEC ACM operation via Remote Product Control with a user-supplied PC: • CDM-840 HTTP (Web Server) Interface using a compatible Web browser. •...
  • Page 236 MN-CDM840 Appendix D Revision 3 Figure D-2 shows the CDM-840 HTTP Interface “splash” page, and the menu tree for accessing VersaFEC ACM operation. Page functionality that is not specific to VersaFEC ACM operation appears dimmed. Figure D-2. CDM-840 HTTP Interface and Menu Tree – VersaFEC ACM Operation (FW Ver.
  • Page 237 • Manual (CEFD P/N MN-CDD880) 2. Use the CDM-840 HTTP Interface ‘Configuration | WAN | Mod | ACM’ page (Figure D-3) to configure the Target Es/No margin and the Max ModCod. Sect. 6.3.3.2.2.2 Configuration | WAN | Mod | ACM (Adaptive Coding and Modulation) in Chapter 6.

  • Page 238: Troubleshooting

    0.1 dB. This page updates dynamically, so if a ModCod changes, the parameters are refreshed. This information is also available through the SNMP interface. If you have access to an Oscilloscope in X-Y mode, the CDM-840 rear panel ‘ALARMS’ connector provides analog voltages to monitor the constellation. D.3.4 ModCod Switch Points Figure D-4.

  • Page 239: Acm Congestion Control

    In order to mitigate packet loss when bandwidth is reduced, the CDM-840 ACM system incorporates a method for congestion control that is illustrated in Figure D-5.

  • Page 240: Notes And Recommendations

    IP packet size. The default setting is 20 ms. • All IP features that are available in the CDM-840 (VLAN, QoS, etc) are available while in ACM mode. D–10...

  • Page 241: Summary Of Specifications

    CDM-840 Remote Router MN-CDM840 Appendix D Revision 3 • ACM maximizes throughput not only when Eb/No varies due to atmospheric conditions, but will also mitigate the effects of other impairments, such as antenna pointing error, excessive phase noise and certain types of interference. However, rapidly fluctuating impairments (i.e., ~ less than 1 second) such as scintillation at low antenna look-angles at C-band will generally not be improved by ACM.
  • Page 242 CDM-840 Remote Router MN-CDM840 Appendix D Revision 3 Notes: D–12...

  • Page 243: Appendix E. Bpm (Bridge Point-To-Multipoint) Operation

    Appendix E. BPM (BRIDGE POINT- TO-MULTIPOINT) OPERATION Functional Overview The overall intent of the Advanced VSAT BPM (Bridge Point-to-Multipoint) feature is to make the Advanced VSAT equipment appear as a “Sky Ethernet Switch”. This allows for a greatly simplified network deployment. In BPM Mode, all L2/L3/L4 protocols, such as VLAN, MPLS, IPv6, OSPF, and BGP, flow through the network as they would through an off-the-shelf Ethernet Switch.

  • Page 244: Bpm Terminology

    Adaptive Coding and Modulation / Variable Coding and Modulation Bridge Mode This Advanced VSAT Network Working Mode configures the Traffic ports of the CTOG-250 and CDM-840 to function as a Bridge. BPM Mode Bridge Point-to-Multipoint Mode Comtech Dynamic CEFD Proprietary protocol that automatically synchronizes the Routing Protocol (CDRP) CTOG-250’s Route table with the CDM-840’s LAN connected...

  • Page 245: Supported Network Configurations

    CDM-840 Remote Router MN-CDM840 Appendix E Revision 3 Supported Network Configurations When running in BPM Mode, the Advanced VSAT System supports Flat Networks, Flat Networks with Routers, and VLAN Trunking network topologies. E.2.1 Flat Network In a Flat Network (Figure E-2), all devices are on the same IP subnet. This is a very easy-to-use topology for simple and/or small networks.

  • Page 246: Vlan Trunking

    You can map Outbound packets (Hub to Remote) to the desired QoS Group (see Sect. E.6). By default, the CDM-840 Remote Router equipment functions as a VLAN trunk and passes all traffic received on the WAN and Traffic LAN ports. In this mode, you should have a VLAN- enabled Ethernet Switch at each remote to properly break out the VLAN into the desired network topology.

  • Page 247: Management Network

    (CDRP) continues to work as expected to populate the CTOG-250 with the routes required to manage the remote CDM-840s via their Management IP Addresses. Handle the Return Link Routed Management Traffic by entering a default route (0.0.0.0/0 “toWAN”) in the CDM-840’s routing table.

  • Page 248: Ieee 802.1Q Support

    As part of 802.1Q support, the CDM-840 supports Traffic port configuration in either Trunk or Access Mode. Access Mode allows the CDM-840 to function as a VLAN edge switch to add and remove VLAN tags to connect a distant end network with other networks.

  • Page 249: Multiple Vlan Tagging Support

    WAN to all CDM-840s using the “VCM Only MODCOD” option for the matching QoS Group (based upon VLAN or Subnet). Return Link Path (CDM-840 ► CDD-880 ► CTOG-250): Multicast packets arriving into the • CDM-840 Traffic port are automatically passed out the CTOG-250’s Traffic port only.

  • Page 250: Multicast Management/Routed Behavior (No Change

    Multicast Management/Routed Behavior (No Change) In both BPM and Router Modes, Multicast packets arriving at the Management (routed) port of the CTOG-250 and CDM-840 must be configured to be transmitted to the WAN by adding a Multicast-specific route table entry with a “/32” subnet.

  • Page 251: Hub Network Configuration

    CDM-840 Remote Router MN-CDM840 Appendix E Revision 3 ID, and then use a Subnet/Mask, to associate a packet to a QoS Group. This functionality allows you to partition the Outbound Carrier capacity. In BPM Mode, you must define a simple VLAN mapping algorithm to map traffic for a given remote to a single QoS Group and a single VLAN ID.
  • Page 252 CDM-840 Remote Router MN-CDM840 Appendix E Revision 3 For the standalone CTOG-250 approach, there are no restrictions on the Hub network beyond requiring that you connect the traffic ports for all of the CDD-880s and the CTOG-250 to the same Ethernet Switch.
  • Page 253 CDM-840 Remote Router MN-CDM840 Appendix E Revision 3 If you have multiple Advanced VSAT outbound carriers at a single Hub, Comtech EF Data recommends the deployment architecture shown in Figure E-9. Figure E-9. Hub Network Configuration If you have multiple Advanced VSAT outbound carriers at a single Hub, Comtech EF Data recommends the deployment architecture shown in Figure E-10.
  • Page 254 CDM-840 Remote Router MN-CDM840 Appendix E Revision 3 allows the packets coming from the CDD-880s to be associated with the correct CTOG-250, as long as you enable MAC learning on the attached Ethernet Switch. Figure E-10. Multiple CTOG-250 Outbounds in Redundant Mode...

  • Page 255: Compatible Features And Detailed Specifications

    MN-CDM840 Appendix E Revision 3 Compatible Features and Detailed Specifications Advanced VSAT BPM Mode is compatible with the following features: Group QoS (CTOG-250) and Return QoS (CDM-840) Header Compression Includes the following L2 Protocols: • Ethernet 2.0 • Ethernet 2.0+VLAN-tag •...

  • Page 256: Summary

    Traffic port Bridge in BPM Mode Routed in Router Mode Manage Port Always in Router Mode (not Applies to CTOG-250, CDM-840, CDD-880 configurable) VLAN Access Mode Support CDM-840 will support VLAN Access Mode for a single VLAN Access Port VLAN ID = 1..4095...

  • Page 257: Appendix F. Carrier Id (Dvb-Cid Metacarrier

    MetaCarrier® spread spectrum technology to embed a unique carrier identification sequence for the transmitted carrier. The CDM-840 with MetaCarrier® is used in tandem with the Comtech EF Data MCDD-100 MetaCarrier® Detection Device to provide a complete MetaCarrier embedding and decoding solution.

  • Page 258: Functional Description

    DVB-CID. The CDM-840 creates a composite carrier by first sizing the appropriate MetaCarrier, and then by adding the spread spectrum CID (at a highly reduced power spectral density compared with that of the host carrier).

  • Page 259: Cdm-840 Carrier Id Operation

    Carrier ID operation requires that you first enable Carrier ID feature operation, and then create a MetaCarrier Custom Message. All other parameters (center frequency, symbol rate, and the CDM-840’s MAC address) are set automatically. The CDM-840 provides several means for configuring Carrier ID operation via Remote Product Control with a user-supplied PC: •...
  • Page 260 YOU HAVE NOTED THE CDM-840 MANAGEMENT IP ADDRESS USING THE CDM-840 SERIAL INTERFACE. Figure F-1 shows the CDM-840 HTTP Interface “splash” page, and the menu tree diagram for accessing Carrier ID operation. Page functionality that is not specific to CDM-840 Carrier ID operation appears dimmed.
  • Page 261 Figure F-2. Utility | Carrier ID Page Carrier ID • Mgmt MAC Address – This is the read-only MAC Address for the CDM-840’s M&C card. • Latitude – Set the modem’s physical location in Latitude in the form DDMM.mmC, where: o DD = degrees (00 to 90);...

  • Page 262: Cid Operation - Serial Remote Control

    CID Operation – Serial Remote Control Chapter 7. SERIAL-BASED REMOTE PRODUCT MANAGEMENT The CDM-840’s serial remote product management interface is an electrical interface that is either an EIA-485 multi-drop bus (for the control of multiple devices) or an EIA-232 connection (for the control of a single device).
  • Page 263 Appendix F Revision 3 The operands available for Carrier ID configuration and operation through CDM-840 Serial-based Remote Product Management are identified in the following table – details on using these CID- specific remote commands and queries are explicitly defined in Chapter 7.
  • Page 264 CDM-840 Remote Router MN-CDM840 Appendix F Revision 3 Notes: F–8...

  • Page 265: Appendix G. Ecm (Entry Channel Mode

    Functional Overview G.1.1 ECM Terminology Abbreviation Term Comments ASR is a private protocol used by the CDM-840 to Application Switch Request request bandwidth from the VMS. The BUC is used in the Tx (uplink) of satellite signals Block Up Converter to convert a band of frequencies from a lower frequency to a higher frequency.

  • Page 266: Ecm Overview

    CDM-840 Remote Router MN-CDM840 Appendix G Revision 3 Abbreviation Term Comments SUM is used for updating VMS device control Status Update Message parameters, such as Tx Frequency, Data Rate, Current MODCOD, Eb/No, Es/No, ACM information, etc. The TAP is the time and frequency reference...
  • Page 267 Factor Remote Router, and ODMR-840B Remote Router Board Set as the ODM-840. While a CDM-840 is in Entry Channel Mode, it allows the passing of management traffic only – it will not transmit user data traffic. An ECM-enabled CDM-840 may remain in the entry channel for an extended period if “online”...
  • Page 268 CDM-840(s) that are queued and await assignment. Depending on the ECM state flag, the CDM-840 either remains idle in the channel or is assigned one of the next available time-sensitive slots. Each slot, labeled as a Set of Registration Slot (SRS), is also assigned through the TAP and allows the CDM-840 to complete any necessary transaction without further contention.

  • Page 269: Ecm Message Processing

    SAS to start entry by sending a probe (slot transmission). • The CDM-840, based on its current ECM state, either requests an assigned slot or waits to be switched: o An assigned slot request indicates to the HCC if the CDM-840 has more data (e.g.
  • Page 270 CDM-840 Remote Router MN-CDM840 Appendix G Revision 3 G.1.4 CDD-880 ECM Message Processing Figure G-3 illustrates the internal logic diagram of the HCC processing of remote messages. Processing Description Remarks Action Remarks Segment RID Detected – add to Detection ALOHA List of TAP RID Detected –...

  • Page 271: Ecm Operational Scenarios

    • The CDM-840 was forced into or dropped back to ECM mode; • The CDM-840 transmits into an SAS setting due to a “Need to be Switched” flag in the RID message; • The HCC sends ECM switch requests to the VMS on behalf of the CDM-840 (Standard Processing).

  • Page 272: G.2.2.1 Ecm Revert Cycle Timing

    Revision 3 G.2.2.1 ECM Revert Cycle Timing When a CDM-840 reverts from dSCPC to ECM, there is typically no wait because the CDM-840 is always monitoring TAP cycles to synchronize. It then randomly selects a slot in the next cycle and transmits.
  • Page 273 If the CDM-840 is not detected by Contention Level 4 (16 frames), it then resets to Contention Level 0 and tries again – the CDM-840 uses one random number to select a frame at the current contention level and another random number to select a slot within the frame.

  • Page 274: Ecm Operation

    Appendix G. ENTRY CHANNEL MODE SWITCHING in the adjunct CEFD publication VMS v3.x.x VIPERSAT Management System User Guide (CEFD P/N MN/22156). The CDM-840 and CDD-880 provide several means for configuring ECM operation via Remote Product Control with a user-supplied PC: •...

  • Page 275: Ecm Operation - Cdm-840 Serial Remote Control

    ECM Operation – CDM-840 Serial Remote Control Chapter 7. SERIAL-BASED REMOTE PRODUCT MANAGEMENT The CDM-840’s serial remote product management interface is an electrical interface that is either an EIA-485 multi-drop bus (for the control of multiple devices) or an EIA-232 connection (for the control of a single device).

  • Page 276: Ecm Operation - Http Interfaces

    YOU HAVE NOTED THE CDM-840 MANAGEMENT IP ADDRESS USING THE CDM-840 SERIAL INTERFACE. Figure G-4 shows the CDM-840 HTTP Interface “splash” page, and the menu tree diagram for accessing ECM operation. Page functionality not specific to ECM operation appears dimmed in this diagram.
  • Page 277 The settings consist of Enabling, TAP Multicast IP Address, TAP (group) ID, and Guard Band. • Use the CDM-840 HTTP Interface to configure one of three modes (states) of ECM operation: Online, Wait or Offline. You must also specify an LNB LO Frequency and Satellite Frequency Conversion to accommodate mismatches between the hub site LNB and remote site BUCs.

  • Page 278: G.3.2.1 Cdm-840 Http Operation - Remote Router Terminals

    • Mode: – Use the drop-down list to select operation as Disabled, Offline, Wait, or Online. Each ECM state establishes a different role for the CDM-840 in the overall Advanced VSAT Network operations: o Online – This is the most common ECM state, whereby the CDM-840 powers up, requests network registration, and switches to dSCPC at the minimum site policy data rate setting.
  • Page 279 CTOG-250 maintain the forward path ACM and routing tables. o Offline – In this ECM state, the CDM-840 does not transmit and remains idle until a new ECM state is selected either locally or from the VMS. Examples for use of this particular ECM state are COTM (communications on the move) or military maneuvers providing radio silence conditions.
  • Page 280 CDM-840 Remote Router MN-CDM840 Appendix G Revision 3 the CDD-880 to the CDM-840s in the ECM group. It is the product of the number of slots and the slot length (consisting of the preamble, data slot size, and Guard Band).

  • Page 281: Http Operation - Hub Channel Controller (Hcc

    CDM-840 Remote Router MN-CDM840 Appendix G Revision 3 • Failures: – This is the number of incomplete transmissions that were detected by the hub. • No Detect: – This is the number of transmissions that were undetected by the hub.

  • Page 282: Tap Message

    This is the automatically assigned internal table index number. IP address for the identified CDM-840 Remote Router. State Current state of this CDM-840 – one of the following will apply: • Probing – The unit is requesting service (registration / switching) from the VMS.

  • Page 283: Hcc Configuration

    Online, an SRS is assigned for next TAP processing. • The CDM-840 receives the TAP with its IP Address in the SRS list and, based on where its place is in the sequential order, determines the slot assignment. By design convention, assigned slots are at the end of the cycle and whatever remains is used for contention at the G–19...
  • Page 284 RID cycle. At this point, the HCC will remove the processing CDM-840’s IP Address from the list clearing the SRS allocation. If the CDM-840 is not switched out of ECM mode, it will proceed to send a Status Update Message (SUM) every minute (or as configured by VMS during registration) in order to maintain its active status with VMS.

  • Page 285: Appendix H. Header And Payload Compression

    Header and Payload Compression are standard features provided in Comtech EF Data’s Advanced VSAT Series group of products, including the CDM-840 Remote Router. The CDM-840 implements Payload Compression via the presence of a GZIP ASIC on the CDM-840 main board. This integrated circuit provides the transmit compression and receive decompression capabilities for maximum throughput and efficiency.

  • Page 286: Traffic Optimization

    The compression hardware does many tasks in parallel, only offloaded from the central CPUs of the CDM-840. This effectively eliminates the multi-pass and iterative nature typical of a classical, single, general purpose CPU that is over tasked with executing the Deflate algorithm.

  • Page 287: Table H-1. Comtech Aha Gzip Performance Comparisons

    Session history size supported 2048 Granularity of control Per route basis Refresh rate 1 to 600 packets or 1 second whichever comes first Packets compressed by the CDM-840 transmitter will be Compatibility decompressed without error by the CDM-840 receiver. H–3...

  • Page 288: Cdm-840 Header And Payload Compression Operation

    Appendix H Revision 3 CDM-840 Header and Payload Compression Operation The CDM-840 provides several means for configuring Header and Payload Compression Carrier ID operation via Remote Product Control with a user-supplied PC: • CDM-840 HTTP (Web Server) Interface using a compatible Web browser.
  • Page 289 CDM-840 SERIAL INTERFACE. Figure H-1 shows the menu tree for accessing Header and Payload Compression under the CDM-840 HTTP Interface. Page functionality that is not specific to CDM-840 Header and Payload Compression operation appears dimmed. Figure H-1. HTTP Interface Menu Tree – Compression Operations (FW Ver. 1.6.2.X)

  • Page 290: Enable Or Disable Header And Payload Compression Operation

    Configuration on the Compression Configuration Page. This will enable and disable the Header and Payload compression for the entire Transmit path. When enabled, the CDM-840 automatically identifies supported packets for Header Compression. The only configurable settings are the Header and Payload Compression Refresh Rates.

  • Page 291: Configure Header And Payload Compression Refresh Rates

    600 packets seen between refreshes. Additionally, even though the runtime supports 64,000 Tx compression sessions, it is only necessary to have context storage for a small number over those 600 packets. Based on this specification, the CDM-840’s compression performance is defined in Table H-3 (±5% with different compression refresh rates).
  • Page 292 CDM-840 Remote Router MN-CDM840 Appendix H Revision 3 Figure H-4. Configuration | WAN | MOD | ACM Page H.2.4 V iew Header and P ayload C ompres s ion S tatis tic s Use the ‘Status | Statistics | Compression’ page (Figure H-5) to review Header and Payload Compression statistics –...
  • Page 293 Appendix H Revision 3 The CDM-840 supports header compression for Ethernet, and Layer 3, 4, and 5 headers. The CDM-840 currently supports Router Mode operation only, so Layer 2 headers are not transmitted over the satellite link. Therefore, there is no need for Layer 2 header compression.
  • Page 294 CDM-840 Remote Router MN-CDM840 Appendix H Revision 3 Notes: H–10...

  • Page 295: Appendix J. Return Group Qos (Quality Of Service

    Quality of Service (QoS) enables a network to use WAN bandwidth more efficiently by managing delay, jitter (delay variation), throughput, and packet loss. The CDM-840 Remote Router provides Return 2-level Group QoS while classifying packets up to Layer 4 (the Transport Layer) of the Open Systems Interconnection (OSI) Model.
  • Page 296 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 allocated to meet customer demands. This metric allows operators the ability to “safely” oversubscribe the satellite bandwidth purchased. • Clipping – The process of the QoS Scheduler’s discard of packets, when the traffic level for a queue exceeds the Max BW (Maximum Bandwidth) or MIR (Maximum Information Rate).

  • Page 297: Return 2-Level Group Qos

    CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 Per queue quantum = available bandwidth *(per queue weight/total weights) • WRED – Weighted Random Early Detection is a congestion avoidance algorithm that is better at avoiding network congestion than using Tail Drop, particularly for TCP traffic.
  • Page 298 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 Figure J-2. Group QoS for Multi-tenant Site 2-Level Return QoS Configuration As shown in Figure J-2, the Return Carrier is divided into QoS Groups. Each customer may create multiple QoS Groups, with rules within their assigned capacity to manage different applications and traffic types.

  • Page 299: Qos Operation Via Remote Product Control

    Per-Rule Statistics. See Sect. J.5 for details. J.1.4 QoS Operation via Remote Product Control The CDM-840 provides several means for configuring QoS operation via Remote Product Control with a user-supplied PC: • CDM-840 HTTP (Web Server) Interface using a compatible Web browser.
  • Page 300 CDM-840 HTTP INTERFACE FOR MONITOR AND CONTROL (M&C) OF THE CDM-840. Figure J-3 shows the CDM-840 HTTP Interface “splash” page, and the menu tree for accessing the operations specified in this appendix. Page functionality that is not specific to QoS operation appears dimmed.

  • Page 301: Qos Groups

    CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 QoS Groups Including the default queue, each QoS Group has up to 32 QoS Rules with eight configurable priorities. The QoS systems: • Create a separate queue for each rule to store the incoming stream of packets. (In this appendix, ‘QoS rules’...
  • Page 302 Figure J-4. Configuration | WAN | QoS Page Example (Control Mode = Off) Use the CDM-840 HTTP Interface ‘Configuration | WAN | QoS’ page (Figure J-4) to manage QoS Groups. In the Add/Change/Delete Group section of the page, use the drop-down list to select the desired QoS Control Mode: Max/Pri, Min/Max, Pri-Weighted, or DiffServ.
  • Page 303 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 Configure the Max/Pri QoS rules as follows: Dest VLAN Src IP/ Filter Index TOS Protocol Priority WRED Range Mask Mask Port Port Port Port (kbps) 0-4094 ***/* ***/* 65535 65535 0-4094 ***/*...
  • Page 304 In other words, all packets matching the QoS Rule with the FILTER ALL option enabled will be dropped. For example, using the CDM-840 HTTP Interface ‘Configuration | WAN | QoS’ page: 1. Select Min/Max as the QoS Group Control Mode.
  • Page 305 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 • In this mode, the minimum bandwidth (CIR) for all rules – excluding the default rule – will be served first in Round-robin fashion. In this example, the total minimum bandwidth for Rules 1 and 2 is 5000 kbps. Since the total bandwidth is 20000 kbps, it has enough bandwidth to serve.
  • Page 306 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 J.2.2.3 QoS Group Pri-Weighted Control Mode In Pri-Weighted Control Mode, you may enter the weight while configuring queues, similar to configuring other parameters such as minimum or maximum bandwidth, priority, etc. In this...
  • Page 307 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 Case 2 example – The Pri-Weighted QoS rules are configured as follows: Delta Max Bytes Queue Min BW (kbps) Max BW (kbps) Weight Allowed BW (kbps) (Max-Min kbps) – – – –...
  • Page 308 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 bytes). Queues 2 and 3 will consume all of the bytes because they have yet to reach their maximum bandwidth. 4. Calculate each bandwidth share based on the total remaining weight (15) and remaining bandwidth of 14 kbps (1750 bytes): o Queue 2 = 1750 * (8 / 15) = 934 bytes (7.472 kbps)
  • Page 309 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 The QoS Scheduler Calculation Solutions table for Case 3 / Example 1 is as follows: Round 1 Round 2 Round ‘N’ Queue Final kbps Given Leftover Given Leftover Given Leftover Weight Weight...
  • Page 310 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 The QoS Scheduler Calculation Solutions table for Case 3 / Example 2 is as follows: Round 1 Round 2 Round ‘N’ Queue Final kbps Given Leftover Given Leftover Given Leftover Weight Weight...
  • Page 311 Assured Forwarding (ASFD) classes. Use the CDM-840 HTTP Interface ‘Configuration | WAN | QoS’ page for complete management of the DiffServ features. Figure J-5 shows the page appearance with DiffServ as the selected QoS Control Mode.
  • Page 312 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 The Service Rate is the minimum rate, in kbps, that the QoS engine attempts to provide the AF class if the capacity exists during congestion. It is similar to a CIR but it is not absolute and it is NOT guaranteed over the Priority 1 through 7 classes.
  • Page 313 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 • AF4 traffic = 2000 kbps demanded 1000 kbps passed 50% of packets dropped • AF3 traffic = 2000 kbps demanded 1000 kbps passed 50% of packets dropped Now, congestion exists because the total traffic demanded is 9 Mbps while the defined capacity is only 7000 kbps (7 Mbps).
  • Page 314 WRED can be enabled or disabled on any queue. When WRED is disabled, upon overdriving the queue the packets will be tail-dropped. For example, using the CDM-840 HTTP Interface ‘Configuration | WAN | QoS’ page: 1. Select the DiffServ QoS Group Control Mode.
  • Page 315 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 available, serving all service rates first. The total of all ASFD service rates are 1600 kbps, which is less than the 2 Mbps leftover bandwidth. After serving the service rates, the leftover bandwidth is 400 kbps. This 400 kbps will be distributed to all ASFD classes equally in Round-robin fashion until either there is no more bandwidth, or the input streams have no data.

  • Page 316: Maximum Clipping

    Round-robin fashion until either minimum bandwidth is met, or no more data is available to drain. For example, using the CDM-840 HTTP Interface ‘Configuration | WAN | QoS’ page: 1. Select the DiffServ QoS Group Control Mode.
  • Page 317 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 • Since ASFD 4 has the service rate 100 kbps, the excess 75 kbps will be given the other queues where the service rate not met. • In this case, the 75 kbps again will share equally among ASFD3, ASFD2, and ASFD1 since these service rates were not met.
  • Page 318 Threshold MODCOD” – i.e., the more it fades, the more the data rate is clamped. As shown in Figure J-6: Use the CDM-840 HTTP Interface ‘Configuration | WAN | Demod | ACM’ page to configure the “CIR Threshold MODCOD.” You can use the CTOG-250 HTTP Interface ‘Configuration | WAN | Remotes Sites | Configuration’...

  • Page 319: Qos Statistics Reporting

    QoS Statistics Reporting The system collects extensive statistics that you can use to monitor performance in real time, or store for historical analysis. Use the CDM-840 HTTP Interface ‘Status | Statistics | QoS’ page (Figure J-7) to view this information.
  • Page 320 CDM-840 Remote Router MN-CDM840 Appendix J Revision 3 This page, depending on the active Control Mode, displays the following information: • Entire Return Statistics (updated every second with live data): o Current Throughput (kbps) o Unused Capacity (kbps) o Total Capacity (kbps)

  • Page 321: Appendix K. Ran/Wan Optimization

    OPTIMIZATION Overview The CDM-840 Remote Router supports E1 RAN (Radio Access Network) Optimization as a FAST option. This appendix provides detailed information about Comtech EF Data’s patent pending RAN Optimization technology, which is designed to provide maximum savings while maintaining superior voice quality.

  • Page 322: K.1.2 Ran Inefficiency

    CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 • For Global System for Mobile Communications (GSM) / 2G, the Base Transceiver Stations (BTS) connect to the Base Station Controllers (BSC) via the Abis interface. Voice, data and signaling are transported over one or more E1s.

  • Page 323: E1 Ran Optimization

    CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 E1 RAN Optimization Jointly developed by Comtech EF Data, Comtech AHA Enterprise Products Group, and CEFD subsidiary Memotec Inc., RAN Optimization technology significantly reduces the Wide Area Network (WAN) / satellite bandwidth required to carry an E1 bearer used for cellular backhaul.

  • Page 324: K.2.1 Process Overview

    CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 K.2.1 Process Overview Figure K-3. RAN Optimization (GSM Abis Interface) On the transmit side, the process for RAN Optimization is summarized as follows: • The incoming 64 kbps Time Slots are de-multiplexed into Traffic Channels (TCH) ;...
  • Page 325 CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 K.2.2 WAN Link Dimensioning and Pre-emptive Bandwidth Management RAN traffic varies over time – variations during the day that peak at certain time(s), and longer term variation as user density/profile(s) changes. The WAN link can be dimensioned to accommodate the peak traffic, or it can be dimensioned to meet a statistically derived value (e.g.
  • Page 326 CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 solution employs a sophisticated bandwidth management capability to maintain Service Quality. The signaling and O&M traffic is always protected from being dropped in case of WAN congestion – this ensures that the BTS/NodeB stays connected and synchronized. The...
  • Page 327 FEATURE. The RAN Optimizer collects detailed usage and performance statistics that are accessible from the CDM-840 HTTP Interface. Error! Reference source not found. shows the CDM-840 HTTP Interface “splash” page, and the menu tree for accessing this monitoring feature. Page functionality that is not specific to this operation appears dimmed.
  • Page 328 MN-CDM840 Appendix K Revision 3 Figure K-6. CDM-840 HTTP Interface and Menu Tree – Link Performance Monitoring (FW Ver. 1.6.2.X) Click the Status, Statistics, and Trending tabs to open the Trending (performance monitoring) page (Error! Reference source not found.). The graphs are viewable by selectable time spans.
  • Page 329 Then, select Auto Update if you wish to set the trending data refresh interval from the default of 10 minutes to 5 seconds. Click [Update] to execute your selection. Allow a few seconds for the graphs to visually update. Figure K-7. CDM-840 HTTP Interface – Status | Statistics | Trending Page K–9...

  • Page 330: Traffic Throughput (Kbps) Graph

    CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 K.2.2.1.1 Traffic Throughput (kbps) Graph This graph illustrates the utilization of all available data traffic types over the chosen time span. This example shows the graph with the 20-minute time span selected.

  • Page 331: Ranop Savings Graph

    CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 Association of the Link Quality Metric to its comparative Link Quality is as follows: Link Quality Metric Link Quality Excellent Very Good Good Fair Average Poor Very Poor Note that ‘8’ on the graph indicates the highest quality, with no voice traffic discard.
  • Page 332 CDM-840 Remote Router MN-CDM840 Appendix K Revision 3 Notes: K–12...

  • Page 333: Appendix L. Dmesh (Vms Dynamic Mesh) Solutions

    Appendix L. dMESH (VMS DYNAMIC MESH) SOLUTIONS Overview VMS v3.x.x VIPERSAT Management System User Guide (CEFD P/N MN/22156) dMesh (Dynamic Mesh) connectivity minimizes the requirement for communications that are routed through a hub and re-routed back to the remote segments of an Advanced VSAT Network.

  • Page 334: Operational Features

    Comtech EF Data’s Advanced VSAT offerings (CTOG-250 Comtech Traffic Optimization Gateway w/CDM-800 Gateway Router and CDD-880 Multi Receiver Router at the hub site, and CDM-840 Remote Routers with CDD-880 Multi Receiver Routers at the remote sites). For example, the Vipersat technology accommodates a mesh environment as follows: •...
  • Page 335 The network provides a true single hop solution for point-to-point or point-to-multipoint connectivity between remote sites. VMS automatically sets up the circuits either by Type of Service (ToS) detection through the remote site CDM-840, or a Distribution List configured in the VMS server with the respective remote site policies.

  • Page 336: Return Link Versafec® Acm (Adaptive Coding And Modulation

    L.2.2.1 VersaFEC® The transmit (Tx) side of the CDM-840 uses a family of short-block LDPC codes called VersaFEC®. VersaFEC is a patent pending technology wholly owned and developed by Comtech EF Data and Comtech AHA Enterprise Products Group (the VersaFEC name is a trademark registered to Comtech AHA).

  • Page 337: Acm And Dmesh

    Although ACM and dMesh are independent of one another, ACM is supported in a dMesh environment. Return link ACM for the remote CDM-840 to the hub CDD-880 link is modeled after the Comtech EF Data CDM-625 Advanced Satellite Modem’s ACM approach and framing, while adapting control techniques to operate in a dynamic point-to-multipoint network that includes a mesh environment.

  • Page 338: Operational Example

    (Again, the units at either side of the network must be populated equally with the appropriate number of demodulator cards.) Such configurations allow transmission of a single carrier from an originating remote CDM-840, a benefit that results in requiring operation of a lower-wattage BUC and/or use of a smaller antenna, when compared with what would be required with multiple carriers transmitted from a remote site.

  • Page 339: Create A Distribution List

    CDM-840 Remote Router MN-CDM840 Appendix L Revision 3 L.3.2.1 Create a Distribution List Chapter 3. VMS Configuration “Define Distribution Lists” in VMS v3.x.x VIPERSAT Management System User Guide (CEFD P/N MN/22156) Use the VMS to set up a Distribution List. Do these steps: 1.
  • Page 340 CDM-840 Remote Router MN-CDM840 Appendix L Revision 3 a) The target box shows all zeros, which means that any packet destined to the subnets shown here causes the VMS to set up a mesh connection. b) Enter a Label that is easy to remember, such as the name of the target remote (e.g., Remote 2).
  • Page 341 CDM-840 Remote Router MN-CDM840 Appendix L Revision 3 Figure L-3. CDD-880 HTTP Interface – Configuration | Network | Routing Page For each individual mesh connection, the VMS enters a SHOD (Single Hop On Demand) at the Hub site CDD-880 demodulator as shown in Figure L-3. The Filter Table lists the Destination Network IP/Mask and a Filter Map.
  • Page 342 However, any subnets that are past a router at the target remote must be entered as external subnets. 6. Mesh Setup Based on ToS Detection: The detection by a CDM-840 Remote Router of a ToS stamped packet can provide the means for setting up a SHOD mesh connection from that remote to another remote within the network.

  • Page 343: Compatibility

    CDM-840 Remote Router MN-CDM840 Appendix L Revision 3 Compatibility All Comtech EF Data products are designed to ensure seamless cohesion when interfacing its CDM-840s or demodulators to a single VMS Server. Table L-1 lists the available Comtech EF Data products that are supported by Vipersat technology.
  • Page 344 CDM-840 Remote Router MN-CDM840 Appendix L Revision 3 Notes: L–12...

  • Page 345: Appendix M. Dpc (Vms Dynamic Power Control

    VMS v3.x.x VIPERSAT Management System User Guide (CEFD P/N MN/22156) This appendix provides information on Dynamic Power Control in reference to the return path only – CDM-840 Remote Router to CDD-880 Multi Receiver Router control. The DPC (Dynamic Power Control) feature provided in Comtech EF Data’s Advanced VSAT...

  • Page 346: M.1.1 Background

    CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 M.1.1 Background Satellite networks are subject to uplink/downlink degradations due to rain fade or other environmental factors. To ensure target link availability, network designers must take into account the rain region on both sides of a link, and design the terminals and operating point to include the appropriate link margins.

  • Page 347: M.2.2 Dpc Functionality

    Appendix M Revision 3 The CDM-840 takes receipt of these messages via the outbound channel in order to take the appropriate actions. Thus, depending on the link estimation compared to internal power curves, the link is adaptive through configuration limits that maintain power budgets on the satellite.

  • Page 348: Operational Essentials

    This range balance is extremely important when operating the network in dSCPC, as the system varies symbol rate and power. For more information on CDM-840 commissioning and cabling considerations, see Comtech EF Data Quick Reference Document QR-CDM840. M.2.2.2...

  • Page 349: Reference Calibration

    CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 The DPC Power Scale (Figure M-1) represents the different calibration levels and limits depending on link-budgeted power parameters. When using the DPC Reference Calibration, the requirements that follow must be taken into consideration to determine link quality and the achievable maximum power.
  • Page 350 CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 Figure M-2. ACM – ModCod Switch Points M–6...

  • Page 351: M.2.3 Dpc Operational Considerations

    • Equal or less than Terminal Maximum Power (if known) When you enable DPC, the CDM-840 waits for first or next LQRM before performing any power adjustment. Upon receipt, the CDM-840 internal Link Adaptation Manager acts in response to incoming messages, storing the data from the last LQRM. If this message contains an E value greater than or less than target, power is adjusted accordingly.

  • Page 352: Adaptive Control Loop (Acl) Components

    E value to its corresponding CDM-840. Messages are sent on timed intervals: 60 seconds normally, or 0.5 second if measured BER falls below defined thresholds or ModCod is below maximum ACM ModCod.

  • Page 353: Closed Loop Mechanism

    The CDD-880 is assigned the Management IP Address of the corresponding CDM-840. Once assigned, the demodulator sends LQRM packets at either fast (500 ms) or slow (60 sec) rate; this rate depends on target window, ModCod, and lock condition.

  • Page 354: Acl Timers

    MN-CDM840 Appendix M Revision 3 When you disable DPC, the CDM-840 notifies the CDD-880 and modifies the timer check logic, changing the target window to E below .5 dB and/or ModCod is not at maximum. The reason for this change is, with DPC disabled, the power level is set to Current Power+Margin Moving Power>Target Power;...

  • Page 355: Lqrm Failure And Recovery Steps

    CDD-880, the CDM-840 removes that CDD-880 from its internal control list and waits for the next LQRM. At that point, the CDM-840 is done with that particular unit and may either continue ACM and DPC to any other CDD-880 that is reporting in, or just maintain the Tx at BPSK and at the increased power level until it again hears from any CDD-880.

  • Page 356: Dpc With Acm

    ACM. Depending on conditions, DPC and ACM can be operated exclusively or in combination, sharing the same resources for checks and balances. When DPC and ACM are operating in combination, the CDM-840 receives the LQRM comparing value to current settings and depending on conditions adjusts power or modifies ModCod.

  • Page 357: Terminal Maximum Power

    CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 M.2.3.4 Terminal Maximum Power Terminal Maximum Power is achievable only if the remote terminal has information on the hub end environmental conditions, and the remote end’s gain compression point (P1dB) is determined. If the hub can relay downlink information for clear-sky or degraded signal quality, the remote terminals are allowed to increase their power beyond the Rate Maximum Power setting.

  • Page 358: Dpc With Acm And Hub Backoff

    CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 M.2.3.5 DPC with ACM and Hub Backoff If hub fade is known, the transmit power is allowed to increase beyond rated maximum power and up to backoff power, possibly preventing degraded performance by not modifying ModCod under ACM control.

  • Page 359: Hub Fade Control

    CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 M.2.3.6 Hub Fade Control The hub attenuation information fully optimizes power control, allowing the remote terminal to use all of available amplifier power to sustain data throughput without jeopardizing SLA. However, it can be difficult to determine if the hub downlink is in a fade condition. The problem...

  • Page 360: M.2.4 Roaming With Dpc

    CDM-840 DPC beam offset control, adjusting the terminal’s power margin by adding or subtracting the beam power differences. The net effect on power is that the maximum power scale is increased or decreased, depending on the vessel’s location within that satellite service...

  • Page 361: Dpc Operation

    Router Installation and Operation Manual (CEFD P/N MN-CDD880) • VMS v3.x.x VIPERSAT Management System User Guide (CEFD P/N MN/22156) The CDD-880 and CDM-840 provide several means for configuring Dynamic Power Control operation via Remote Product Control with a user-supplied PC: •...

  • Page 362: M.3.1 Dpc Operation Using The Http Interfaces

    Revision 3 M.3.1 DPC Operation Using the HTTP Interfaces Figure M-9 shows the CDM-840 and CDD-880 HTTP Interface “splash” pages, and the menu tree diagrams for accessing the operation specified in this appendix for DPC operation. Page functionality not specific to DPC operation appears dimmed in these diagrams.

  • Page 363: Configure Dpc

    [Submit] when done. 3. If operating with ACM: Use the drop-down list in the Tx ACM Configuration section of the CDM-840 HTTP Interface ‘Configuration | WAN | Mod | ACM’ page to select the desired Max MODCOD. Click [Submit] when done.

  • Page 364: Power Reference In Dpc Operation

    Site Default MODCOD setting. The Max MODCOD drop-down list is therefore dimmed, allowing no selection. 4. Use the drop-down list in the Tx Dynamic Power Control Configuration section of the CDM-840 HTTP Interface ‘Configuration | WAN | Mod | DPC’ page to enable DPC. Click [Submit] when done. •...
  • Page 365 Appendix M Revision 3 1. If the link is established statically, use the CDM-840 HTTP Interface to do these steps: a) Use the ‘Configuration | WAN | Mod | Config’ page to establish the communications link, set the Modulator Frequency, and select the MODCOD, Symbol Rate and Data Rate.
  • Page 366 If [Set Reference] fails, note the failure, correct the condition, and click [Set Reference] once more. 2. If the link is established dynamically, use the CDM-840 HTTP Interface to do these steps: a) Use the ‘Configure | ECM’ page to enable ECM with correct TAP parameters: b) Either manually set ECM Power or enable Power Hunt to adjust power until the return path ECM demod locks with good data (VMS registration completes).
  • Page 367 CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 c) Use the ‘Configuration | dSCPC’ page to switch to dSCPC manually (using the Load Switching Configuration section) or automatically (using the ToS Switching Configuration section). d) Use the drop-down list in the Tx Dynamic Power Control (DPC) Configuration section of the ‘Configuration | WAN | Mod | DPC’...

  • Page 368: Dpc - Status Reporting

    VMS sends a switch command to modify transmission rates. When you enable DPC, you now modify power with the CDM-840 and ignore any power setting in the switch command; this changes the behavior of the home state settings. The home state settings remain very important for frequency domain check, but you now use the power only to limit the site’s symbol rate.

  • Page 369: Firmware Update

    The DPC feature is designed not to affect any current operational settings during an update of firmware. The parameter setting for power will remain the same until reference calibration in the CDM-840 is applied, meaning that system will operate normally. Final Considerations DPC is not an accurate system or absolute solution.
  • Page 370 CDM-840 Remote Router MN-CDM840 Appendix M Revision 3 Notes: M–26...
  • Page 372 2114 85281 WEST TH STREET TEMPE ARIZONA 480 • 333 • 2200 PHONE 480 • 333 • 2161...

Table of Contents