Datum Systems M7 Series Installation And Operation Manual
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Datum Systems M7 Series Installation And Operation Manual

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M7 Series Modular
Satellite Modem
M7/M7L/M7LT/M7D/M7DL Series

Installation and Operation Manual

Revision 0.05.0
M7/M7L/M7LT - Rev. 0.05

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  • Page 1: Installation And Operation Manual

    M7 Series Modular Satellite Modem M7/M7L/M7LT/M7D/M7DL Series Installation and Operation Manual Revision 0.05.0 M7/M7L/M7LT - Rev. 0.05...
  • Page 2 This page is intentionally blank.

  • Page 3: Table Of Contents

    M7 Modem Assemblies ....................... 1-10 1.5. M7 Capabilities ........................1-12 1.6. Forward Error Correction (FEC) Options ................1-22 1.7. M7 Series Feature Sets ...................... 1-26 1.8. 1:1 Redundancy Function (Future Option) ................1-26 Installation Requirements ......................2-1 2.1. Unpacking ..........................2-1 2.2.
  • Page 4 Preface M7/M7L/M7LT Modular Satellite Modem Figures Figure 1-1 – M7 Series Modems ......................1-5 Figure 1-2 – Point-to-Point Network ....................1-6 Figure 1-3 – Four (4) Site Point-to-Multipoint Network ............... 1-7 Figure 1-4 – Four (4) Site Mesh Network .................... 1-7 Figure 1-5 –...
  • Page 5 M7/M7L/M7LT Modular Satellite Modem Preface Figure 3-21 – Demodulator Monitor Constellation Page ..............3-17 Figure 3-22 – Demodulator Monitor Spectrum Analyzer Page ............3-18 Figure 3-23 - Serial Synchronous Interface Status Page ..............3-19 Figure 3-24 - Serial Synchronous Interface I/O Page ............... 3-20 Figure 3-25 - Serial Synchronous Interface Overhead Mux/Demux Page ........
  • Page 6 Table 1-3 – Modulation, FEC, and Code Rates................1-22 Table 1-4 - Reed-Solomon Modes ....................1-24 Table 1-5 - M7 Series Feature and Option Matrix................1-26 Table 2-1 - Remote IP Control Connector Pinout (J4) ................ 2-3 Table 2-2 - Remote Control Connector Pinout (J5) ................2-4 Table 2-3 - Alarm Connector Pinout (J6) ....................
  • Page 7 Information Technology Equipment (Including Electrical Business Machines). The M7 Series is shipped with an external IEC filtered AC to DC power converter module designed to accept a 3-wire mains connection consisting of an earth ground, neutral and line conductors. The mating power cord should have a line cord and plug suitable for the country of operation.

  • Page 8: Rohs Compliance

    Do not operate the modem in an unsafe environment near explosive or flammable gases or liquids If the M7 Series is to operation in a mobile environment, the user must take precautions to provide a stable environment consistent with the equipment specifications.

  • Page 9: About This Manual

    The electronic format is produced as a universal Adobe Acrobat readable file, and can be requested directly from Datum Systems, Inc., or via download from the web at www.datumsystems.com. The electronic format on the web is always the latest revision.

  • Page 11: Introduction

    QPSK, OQPSK, 8PSK, 8QAM and 16QAM modulated carriers. The M7 series uses the latest Digital Signal Processing (DSP) technology and proprietary techniques to provide unsurpassed performance at a low cost. The M7 series is a highly modular design made possible by higher integration and smaller size. Impressive features are highlighted by this design methodology: ...

  • Page 12: Figure 1-2 - Point-To-Point Network

    Operation M7/M7L/M7LT Modular Satellite Modem  Point-to-Point (PtP)  Point-to-Multipoint (PtMP)  Mesh In a Point-to-Point network, the M7 provides the industry leading Eb/No performance and flexible baseband interface options. This performance improvement and flexible interface support allows the operator to update legacy networks without changing the teleport infrastructure. The additions of the Ethernet/IP interfaces to the M7 provide the network operator with the latest technology needed to extend cellular backhaul connectivity and Internet access to remote locations.

  • Page 13: Figure 1-3 - Four (4) Site Point-To-Multipoint Network

    M7/M7L/M7LT Modular Satellite Modem Operation Figure 1-3 – Four (4) Site Point-to-Multipoint Network A Mesh network is used when all sites in a network need to be connected to all other sites within that same network with a single satellite link. This could be done by installing multiple PtP networks between each network site, but as the number of network nodes increases, there is a dramatic increase in the number of carriers that would be added and also an increase in the number of modems required at each site.

  • Page 14: What's New - This Modem And This Manual

    What’s New – This Modem and This Manual 1.3. The M7 is similar in operation to the previous Datum Systems modems, especially the PSM-4900 or PSM-500 series. However, there are a number of significant changes in this modem series when compared to the previous releases.

  • Page 15: Figure 1-6 - M7Lt Terminal (Showing Front And Rear Views)

    M7/M7L/M7LT Modular Satellite Modem Operation Figure 1-6 – M7LT Terminal (showing front and rear views) M7/M7L/M7LT - Rev. 0.05...

  • Page 16: M7 Modem Assemblies

    Operation M7/M7L/M7LT Modular Satellite Modem 1.4. M7 Modem Assemblies The M7 consists of four (4) main functional elements arranged on electronic printed circuit assemblies, as shown in Figure 1-7. A simplified block diagram of the M7 is shown in Figure 1-8. Figure 1-7 –...

  • Page 17: Figure 1-8 - Modem Block Diagram

    M7/M7L/M7LT Modular Satellite Modem Operation The other two printed circuit assemblies are the Front Panel Control Assembly, and the common backplane assembly. In addition the main demodulator PWB can accept a plug-in sub-assembly for optional TPC Forward Error Correction (FEC). All other FEC functions such as standard Viterbi, TCM and Reed-Solomon are contained in FPGA on the modulator and demodulator assemblies.

  • Page 18: M7 Capabilities

    M7/M7L/M7LT Modular Satellite Modem 1.5. M7 Capabilities 1.5.1. Inter-Facility Interface (IF) The M7 series is offered with two (2) IF variations designed to meet the needs of various earth stations.  IF = 50-180MHz (TX/RX)  L-Band = TX = 950-2150MHz, RX = 950-2150MHz The standard M7 modem is equipped with a 50 to 180 MHz transmit and receive IF.

  • Page 19: Figure 1-10 - Carrier Alpha = 0.08, 1Msps X1.10 Carrier Spacing

    M7/M7L/M7LT Modular Satellite Modem Operation A significant benefit of this technology is the reduction in carrier pacing required on the satellite. With a filter roll-off of 0.4, the carrier spacing would be 1.4 times the carrier symbol rate. When the carriers are changed to a 0.08 roll-off, this carrier spacing can be reduced by more than 20% to 1.1 times the carrier symbol rate.

  • Page 20: Figure 1-11 - Synchronous Serial Interface

    Operation M7/M7L/M7LT Modular Satellite Modem 1.5.3. Data Interfaces The modem is capable of accepting interface cards that provide connectivity to a number of different baseband interface types. These interfaces can be installed as a single interface or may be installed in a dual interface configuration.

  • Page 21: Figure 1-12 - Ethernet Interface (I7)

    M7/M7L/M7LT Modular Satellite Modem Operation The M7 includes two changes to previous modems to insure proper operation. 1. The modem detects if no data is present on the Send Data input by a lack of transitions for approximately 5 seconds and will produce a programmable alarm after that time. 2.

  • Page 22: Figure 1-13 - Express Ethernet Interface (E7)

    Operation M7/M7L/M7LT Modular Satellite Modem 1.5.3.3. Express Ethernet Interface (E7) The Express Ethernet interface (E7) card is a layer 2 Gigabit Ethernet bridged interface. The E7 supports connections between GbE networks and the M7 satellite modem as part of point-to-point or point-to-multipoint Ethernet data transfer.

  • Page 23: Figure 1-14 - Dual G.703/E1 Interface (G7)

    M7/M7L/M7LT Modular Satellite Modem Operation Figure 1-14 - Dual G.703/E1 Interface (G7) The Full E1 mode allows for transmission of a 2.048Mbps input data stream without synchronizing to the imbedded framing of the E1 signal. In this case the port data rate though the satellite link is the full 2.048Mbps of the E1 transport stream.

  • Page 24: Figure 1-15 - Hssi Interface

    Cisco 3600 series, for higher data rates on WAN links. The standard itself describes communications at up to 52 Mbps over cable lengths up to 50 feet. Since the M7 series of modems is capable of up rates >52 Mbps, this optional interface allows full utilization of the M7 capabilities.

  • Page 25: Figure 1-17 - Dual Interface Configuration I7 And G7

    M7/M7L/M7LT Modular Satellite Modem Operation Figure 1-17 - Dual Interface Configuration I7 and G7 Figure 1-18 - Dual Interface Configuration E7 and G7 1.5.4. Bit Rate Timing Options The Modulator and the Demodulator each have four (4) possible sources for their bit rate timing. These clock sources may be used in various ways in a system implementation to provide correct timing at a destination.

  • Page 26: Table 1-2 - Internal Framing Options

    Operation M7/M7L/M7LT Modular Satellite Modem 1.5.6. Data Interface BERT Function The standard interfaces also include a programmable Bit Error Rate Test (BERT) function. The BERT is located between the M7’s satellite and terrestrial data loop-back functions. A new in the M7 is the ability to configure the BERT to test the “Line”...
  • Page 27 M7/M7L/M7LT Modular Satellite Modem Operation The “4-Wire” setting forces the driver continuously on while the “2-Wire” setting controls the output into tri-state when the modem is not transmitting data, allowing multiple modem outputs to be connected together. In the standard IBS mode only the “4-Wire” mode is available. In Custom or Advanced mode a 2 wire receive operating mode can be selected for the receive data into the ESC channel.

  • Page 28: Forward Error Correction (Fec) Options

    8PSK TCM and 16QAM. The following sections provide a general description of the characteristics of each of these functions. All of the M7 series demodulators have a single plug-on option FEC card for an optional TPC function or future FEC options.
  • Page 29 R-S at 220, 200, depth of 4. R-S is auto-enabled  TPC Advanced modes are Datum Systems proprietary implementations that require the TPC16k option only for the highlighted lines. They offer superior performance to CT modes 1.6.1.

  • Page 30: Figure 1-19 - Reed-Solomon Block Diagram

    Operation M7/M7L/M7LT Modular Satellite Modem Transmit Transmit Data Channel Terrestrial Data Channel Transm it Reed-Solom on Transm it Reed-Solom on Block Encoder & Block Interleaver Synchronous Scram bler Clock and Fram e Main Modem Multiplex Proces s or Clocks Generation Ass em bly Option Receive...

  • Page 31: Figure 1-20 - Tcp Option Card

    The Datum Systems’ proprietary TPC “Advanced” mode has been optimized to provide the highest performance available in any TPC on the market. These modes not only outperform other manufacturer’s TPC, but also LDPC in many cases.

  • Page 32: M7 Series Feature Sets

    There are three (3) feature sets offered for the modem which apply to any of the IF variations. More detail on maximum and minimum data rates are shown in Appendix A. Table 1-5 - M7 Series Feature and Option Matrix. Feature M7LT...

  • Page 33: Installation Requirements

    M7/M7L/M7LT Modular Satellite Modem Maintenance Installation Installation Requirements The M7 Modem is designed for installation in any standard 19-inch equipment cabinet or rack, and requires 1 RU mounting space (1.75 inches) vertically and 12 inches of depth (not including cabling space) but only one half of the rack space in width.

  • Page 34: Modem Connections

    Maintenance M7/M7L/M7LT Modular Satellite Modem Do not mount the modem in an unprotected outdoor location where there is direct contact with rain, snow, wind or sun. The modem is designed for indoor applications only. The only tools and accessories required for rack mounting the modem is a set of four rack mounting screws and an appropriate screwdriver.

  • Page 35: Figure 2-3 - M7Lt Rear Panel With Dc Prime Power Input

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 2-3 – M7LT Rear Panel with DC Prime Power Input 2.3.2. IP Control RJ45 (J4) The RJ45 IP Control connection provides remote control of the modem via a Web Browser page or SNMP. Refer to Table 2-1 for the pinout of the Auxiliary connector. Table 2-1 - Remote IP Control Connector Pinout (J4) Pin # Signal Name...

  • Page 36: Table 2-2 - Remote Control Connector Pinout (J5)

    Maintenance M7/M7L/M7LT Modular Satellite Modem Table 2-2 - Remote Control Connector Pinout (J5) P2 Pin # Signal Name Direction Transmit B RS–485 Transmit Data (B) + Output Transmit RS–232 Transmit Signal Output Receive RS–232 Receive Signal Input Not Used Common RS-232 Signal Common Transmit A RS-485 Transmit Data (A) -...

  • Page 37: Figure 2-4 - M7Lt Rear Panel Connector Options (N Type Or F Type)

    M7/M7L/M7LT Modular Satellite Modem Maintenance 2.3.6. The IF Input/Output (J7 and J8) M7 – 50 to 180MHz IF Output - BNC (f) (J8) 2.3.6.1. The 50 – 180 MHz IF Output is located on a female BNC J8. The frequency, power level, and impedance of this interface are programmable from any control interface.

  • Page 38: Figure 2-5 - M7Lt Rear Panel Indicators

    Maintenance M7/M7L/M7LT Modular Satellite Modem 2.3.6.7. L-Band BUC and LNB Power (M7LT Only) The M7LT modem has internal power supplies that have the capability to provide DC Voltage via the L-Band Xmt and Rcv IF cable to a low power BUC and/or the LNB. The internal relays under processor control and can be enabled or disabled using the front panel or remote control.

  • Page 39: Figure 2-6 - M7Lt Internal Buc Power Supply (Ac Version Shown)

    M7/M7L/M7LT Modular Satellite Modem Maintenance NOTE: The internal AC or DC BUC power supplies in the M7LT can be changed in the field by a qualified operator. Figure 2-6 shows the location of the BUC power supply in the AC input power unit and Figure 2-7 shows the location of the BUC power supply in the DC input unit.

  • Page 40: Table 2-5 - Buc Power Supply Options

    Maintenance M7/M7L/M7LT Modular Satellite Modem Table 2-5 – BUC power supply options BUC Power Supply BUC Power Supply BUC power Supply BUC power Supply Input Voltage Output Voltage Power Rating Max Current 90-264 VAC 24 VDC 100 Watt 4.2 Amps 90-264 VAC 24 VDC 120 Watt...

  • Page 41: Table 2-6 - Synchronous Serial Data Interface Connector Pinout (J11)

    M7/M7L/M7LT Modular Satellite Modem Maintenance 2.3.8. Data Interface Options The modem is supplied with an electronically programmable data interface assembly 2.3.8.1. Synchronous Serial Data Interface 2.3.8.1.1. Synchronous Serial Data Interface Connection (J11): The connection to the primary data signals on the Synchronous Serial Data Interface is on a 25-pin female “D”...

  • Page 42: Table 2-7 - Serial Interface Overhead Channel - Ibs Standard Mux - Rs-232 (J10)

    Maintenance M7/M7L/M7LT Modular Satellite Modem NOTE: Data Interface Connections: 1. The modulator and demodulator fault alarms are Open Collector TTL outputs used to interface to redundancy control equipment. 2. The Shield is normally connected to the cables shield at one end of the cable only. Connecting at the DCE end only prevents ground loop currents being carried on the shield.

  • Page 43: Table 2-9 - Serial Interface Overhead Channel - Advanced/Ibs Custom Mux - Rs-232 (J10)

    M7/M7L/M7LT Modular Satellite Modem Maintenance ESC Rcv Clock- (A) RS-485 Standard Mode Output Connection (synchronous) Ground Ground Ground ESC Rcv Clock+ (B) RS-485 Standard Mode Output Connection (synchronous) FIFO External Clock input ‘+’ Primary Interface Input or ‘B’ line. RS422 level External Clock+ (B) Ground Ground...

  • Page 44: Table 2-10 - Serial Interface Overhead Channel - Advanced/Ibs Custom Mux - Rs-485 (J10)

    Maintenance M7/M7L/M7LT Modular Satellite Modem ESC Alarm Out A Backward Alarm A, Form C Output Relay N.C. Normally Closed ESC Alarm Out B Backward Alarm, Form C Output Relay Common Normally Common Table 2-10 – Serial Interface Overhead Channel - Advanced/IBS Custom Mux - RS-485 (J10) Signal Name Direction Pin #...

  • Page 45: Figure 2-8 - I7 - Ip Interface Rear Panel

    M7/M7L/M7LT Modular Satellite Modem Maintenance 2.3.8.2. Advanced IP Interface (I7) The I7 IP Interface connector is on the rear panel (Figure 2-8) of the optional interface card. Figure 2-8 – I7 - IP Interface Rear Panel The IP connections for the primary transmit and receive data are on the RJ45 connector J12 Table 2-11 - I7 IP Interface Connector Pinout (J12) Name Description...

  • Page 46: Figure 2-9 - Express Ethernet Interface (E7)

    Maintenance M7/M7L/M7LT Modular Satellite Modem 2.3.8.3. Express Ethernet Interface (E7) The E7 Express Ethernet Interface connectors are on the rear panel (Figure 2-9) of the optional interface card. Figure 2-9 - Express Ethernet Interface (E7) Figure 2-10 - Typical SFP Interface Adapters (Optical and GbE shown) 2.3.8.3.1.

  • Page 47: Figure 2-11 - G7 - Dual G.703/E1 Interface Rear Panel

    (2) BNC connectors (J23 and J24) provide direct for the data interface. For Port 2, a connector adapter must be used to convert the unbalanced interface signals on the RJ45 (J22) to unbalanced (75ohm, BNC). This adapter is available from Datum Systems and shown in Figure 2-12. Figure 2-12 – RJ45 to BNC adapter M7/M7L/M7LT - Rev.

  • Page 48: Table 2-15 - Overhead Interface - Rs-232 (J20)

    Maintenance M7/M7L/M7LT Modular Satellite Modem 2.3.8.4.3. Dual G.703/E1 Overhead Channel Connection (J20) The G7 interface offers access to the ESC overhead data is on an auxiliary connector located on the rear panel, a 9-pin female “D” sub connector J20. The pin-out of this connector is determined by the selected multiplexer mode.

  • Page 49: Figure 2-13 - Hssi Interface Rear Panel

    M7/M7L/M7LT Modular Satellite Modem Maintenance 2.3.8.5. High Speed Serial Interface (HSSI) 2.3.8.5.1. HSSI Data Interface Connector (J26) The High-Speed Serial Interface connector is a 50 pin SCSI-2 on the rear panel (Figure 2-13) of the optional interface card. Figure 2-13 – HSSI Interface Rear Panel Connection between the Router and the modem’s HSSI interface connector is via a Cisco CAB- 1HSSI cable or equivalent.

  • Page 50: Table 2-17 - M7 Overhead Channel - Ibs Standard Mux - Rs-232 (J25)

    Maintenance M7/M7L/M7LT Modular Satellite Modem NOTE: The FIFO External Clock pins are an input to the modem. An input at the receive data rate can be used to clock data out of the demodulator FIFO buffer. An input at the transmit data rate can be used to provide a transmit send timing clock which the modem will phase locked to (if within acceptable range).

  • Page 51: Table 2-19 - M7 Overhead Channel - Advanced/Ibs Custom Mux - Rs-232 (J25)

    M7/M7L/M7LT Modular Satellite Modem Maintenance Table 2-19 – M7 Overhead Channel - Advanced/IBS Custom Mux - RS-232 (J25) Signal Name Direction Pin # Ground Ground ESC Send Data RS-232 Advanced/Custom Input Mode Connection (sync) ESC Rcv Data RS-232 Advanced/Custom Output Mode Connection (sync) ESC RTS RS-232 Advanced/Custom...

  • Page 52: Table 2-20 - M7 Overhead Channel - Advanced/Ibs Custom Mux - Rs-485 (J25)

    Maintenance M7/M7L/M7LT Modular Satellite Modem Table 2-20 – M7 Overhead Channel - Advanced/IBS Custom Mux - RS-485 (J25) Signal Name Direction Pin # Ground Ground ESC Send Data+ (B) RS-485 Advanced/Custom Input Mode Connection (sync) ESC Rcv Data+ (B) RS-485 Advanced/Custom Output Mode Connection (sync) ESC Send Data- (A)

  • Page 53: Adding Or Changing The Interface Type

    NOTE: In some cases, when options are first introduced, a software update to the modems internal program is necessary to allow use of the option. Refer to Section 0 - Updating Modem Software. The Datum Systems M7 Update program will also recognize and install software for FEC cards present in the modem.

  • Page 54: Figure 2-15 - Fec Option Card Installation

    Maintenance M7/M7L/M7LT Modular Satellite Modem Turbo Product Codes or TPC is available in three versions depending on the link requirements. The three versions are:  TPC4K which uses the same TPC chip as in legacy Datum modems  TPC16K which uses a newer 16K block size to improve performance ...

  • Page 55: Redundancy Connection (Future Option)

    M7/M7L/M7LT Modular Satellite Modem Maintenance 2.6. Redundancy Connection (Future Option) Connection of two (2) M7 units in 1:1 redundancy is accomplished by using a special the data “Y” cable specified in Appendix C - Cabling Specifications, an IF combiner, and IF splitter. The two modems communicate with each other to determine the alarm status of each and force the “off-line”...

  • Page 57: Operation

    M7/M7L/M7LT Modular Satellite Modem Maintenance Operation 3.1. Operating Procedures Operation of the M7 Modem consists of controlling the unit’s operating parameters and monitoring status and responses via one of the control interfaces. There are three possible control methods for the modem: 1.

  • Page 58: Table 3-1 - Modem Led Indicators

    Maintenance M7/M7L/M7LT Modular Satellite Modem Table 3-1 - Modem LED Indicators Indicator Name Indicator Color Description Power: Green Indicates the modem unit is currently under power. Indicated that the modem is online. In 1:1 redundancy Online Green/Off configuration, (future option) this indicator will be lit green on the on-line modem and the off on the modem that is off line.

  • Page 59: Front Panel Control And Monitor Matrix

    M7/M7L/M7LT Modular Satellite Modem Maintenance The display, shown in Figure 3-2, has four distinct areas showing current status information. The upper left of the LCD shows the current area of use, such as “Status”, “IF”, “Data”, “Alarm” or “Test” (for the Mod and Demod). The upper right shows the current parameter being monitored, such as “Frequency”, “Offset”...
  • Page 60 Maintenance M7/M7L/M7LT Modular Satellite Modem 3.3.1. Front Panel Matrix Navigation A functional matrix is selected by pressing one of the four buttons below the LCD display. In response the modem will highlight the particular button text selected. Each individual item that may be controlled or monitored is referred to as a “parameter”. Parameters are arranged within each matrix as rows and columns.
  • Page 61 M7/M7L/M7LT Modular Satellite Modem Maintenance completely overwrites the existing parameter. For example when viewing the Modulator Data Bit Rate of 256.000kbps entering the digits 64.000 (including the decimal point) and pressing “Enter” will change to that new 64kbps data rate. Note that a leading “0” did not have to be entered to overwrite the “2”...

  • Page 62: Web Browser Operation

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.4. Web Browser Operation Activate the M7 Web Browser by opening the Internet Browser on the computer and type in the IP address of the target M7 in the address bar of the browser. NOTE: Login security may be activated by setting up the “User/Password” parameter in the binary interface.

  • Page 63: Figure 3-4 - M7 Web Browser Page Sections

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.4.1. Page Sections There are 3 main sections on all M7 web pages (refer to Figure 3-4).  Status Windows  Page Menu  Parameter Window The Status Window provides the user a summary status of the M7 that reflects what would normally show on the front panel.

  • Page 64: Figure 3-5 - Summary Status Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.4.2. M7 Web Browser Page Screen Shots 3.4.2.1. Summary Page The Summary Status (Figure 3-5) will be the first page that is displayed when the computer connects to the M7 Web Browser. The summary page provides the user a snapshot of the current M7 status and indicates the available interfaces.

  • Page 65: Figure 3-6 - Unit Status Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.4.2.2. Unit Page The unit page is used to configure the common parameters of the M7. The remote control interface parameters, the unit frequency reference, and other unit parameters are controlled in the “Unit” pages. Figure 3-6 through Figure 3-12 represent seven (7) of the sixteen (16) Unit pages available to the user.

  • Page 66: Figure 3-8 - Unit Events Log Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-8 – Unit Events Log Page 3-10 M7/M7L/M7LT - Rev. 0.05...

  • Page 67: Figure 3-9 - Unit Remote Ip Control Interface Pages

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 3-9 - Unit Remote IP Control Interface Pages Figure 3-10 - Unit Remote Serial Control Interface Page M7/M7L/M7LT - Rev. 0.05 3-11...

  • Page 68: Figure 3-11 - Unit Http Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-11 - Unit HTTP Page Figure 3-12 – Unit Event Page 3-12 M7/M7L/M7LT - Rev. 0.05...

  • Page 69: Figure 3-13 - Modulator Status Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.4.2.3. Modulator Pages The Modulator pages are used to configure the transmit section parameters of the M7. The IF, Data interface, and other transmit parameters are controlled in the “Modulator” pages. Figure 3-13 through Figure 3-16 represent four (4) of the eight (8) Modulator pages available to the user. Figure 3-13 –...

  • Page 70: Figure 3-15 - Modulator Data Interface Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-15 – Modulator Data Interface Page Figure 3-16 – Modulator Event Page 3-14 M7/M7L/M7LT - Rev. 0.05...

  • Page 71: Figure 3-17 - Demodulator Status Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.4.2.4. Demodulator Pages The Demodulator pages are used to configure the receive section parameters of the M7. The IF, Data interface, and other receive parameters are controlled in the “Demodulator” pages. Figure 3-17 through Figure 3-22 represent six (6) of the eight (8) pages available to the user. Figure 3-17 –...

  • Page 72: Figure 3-19 - Demodulator Data Interface Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-19 – Demodulator Data Interface Page Figure 3-20 – Demodulator Event Page 3-16 M7/M7L/M7LT - Rev. 0.05...

  • Page 73: Figure 3-21 - Demodulator Monitor Constellation Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 3-21 – Demodulator Monitor Constellation Page M7/M7L/M7LT - Rev. 0.05 3-17...

  • Page 74: Figure 3-22 - Demodulator Monitor Spectrum Analyzer Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-22 – Demodulator Monitor Spectrum Analyzer Page 3-18 M7/M7L/M7LT - Rev. 0.05...

  • Page 75: Figure 3-23 - Serial Synchronous Interface Status Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.4.2.5. Interface Pages The active interface parameters will be shown in the Interface pages and are used to configure the baseband interface parameters of the M7. The Electrical Interface I/O, Overhead multiplex/demultiplex, Engineering Service Channel parameters, and other interface parameters are controlled in the “Interface”...

  • Page 76: Figure 3-24 - Serial Synchronous Interface I/O Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-24 - Serial Synchronous Interface I/O Page Figure 3-25 - Serial Synchronous Interface Overhead Mux/Demux Page 3-20 M7/M7L/M7LT - Rev. 0.05...

  • Page 77: Figure 3-26 - Serial Synchronous Interface Esc Interface Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 3-26 - Serial Synchronous Interface ESC Interface Page Figure 3-27 - Serial Synchronous Interface Test Configuration Page M7/M7L/M7LT - Rev. 0.05 3-21...

  • Page 78: Figure 3-28 - Serial Synchronous Interface Event Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-28 – Serial Synchronous Interface Event Page 3-22 M7/M7L/M7LT - Rev. 0.05...

  • Page 79: Figure 3-29 - I7 Interface Status Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.4.2.5.2. I7 Interface Screens Figure 3-29 through Figure 3-33 represent five (5) of the eight (8) I7 Interface pages available to the user. Figure 3-29 – I7 Interface Status Page Figure 3-30 - I7 Interface IP Configuration Page M7/M7L/M7LT - Rev.

  • Page 80: Figure 3-31 - I7 Interface Mcc Configuration Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-31 – I7 Interface MCC Configuration Page Figure 3-32 – I7 Interface Event Page 3-24 M7/M7L/M7LT - Rev. 0.05...

  • Page 81: Figure 3-33 - I7 Interface Statistics Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 3-33 - I7 Interface Statistics Page M7/M7L/M7LT - Rev. 0.05 3-25...

  • Page 82: Figure 3-34 - E7 Interface Status Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.4.2.5.3. E7 Interface Screens Figure 3-34 through Figure 3-38 represent five (5) of the eleven (11) E7 Interface pages available to the user. Figure 3-34 – E7 Interface Status Page Figure 3-35 - E7 Interface Events Page 3-26 M7/M7L/M7LT - Rev.

  • Page 83: Figure 3-36 - E7 Interface I/O Port Configuration Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 3-36 - E7 Interface I/O Port Configuration Page Figure 3-37 - E7 Interface QoS Configuration Page M7/M7L/M7LT - Rev. 0.05 3-27...

  • Page 84: Figure 3-38 - E7 Interface Statistics Page

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-38 - E7 Interface Statistics Page 3-28 M7/M7L/M7LT - Rev. 0.05...

  • Page 85: Figure 3-39 - Dual G.703 Interface Status Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.4.2.5.4. Dual G.703 Interface Screens Figure 3-39 through Figure 3-42 represent four (4) of the eleven (11) Dual G.703 Interface pages available to the user. Figure 3-39 – Dual G.703 Interface Status Page Figure 3-40 – Dual G.703 Interface Send Mux Page M7/M7L/M7LT - Rev.

  • Page 86: Figure 3-41 - Dual G.703 I/O Port 1 Page (Showing D&I Selections)

    Maintenance M7/M7L/M7LT Modular Satellite Modem Figure 3-41 – Dual G.703 I/O Port 1 Page (showing D&I selections) 3-30 M7/M7L/M7LT - Rev. 0.05...

  • Page 87: Figure 3-42 - Dual G.703 Interface Event Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 3-42 – Dual G.703 Interface Event Page M7/M7L/M7LT - Rev. 0.05 3-31...

  • Page 88: Front Panel Monitor And Control Parameters

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.5. Front Panel Monitor and Control Parameters Parameter matrices are available from the front panel. Within the tables following, parameters that appear shaded are only accessible when the modem is configured to use those parameters. For example, those parameters pertaining to the AUPC are only available when the AUPC is enabled, and those pertaining to the Reed-Solomon Codec will appear only if the Reed-Solomon Codec is installed and enabled.

  • Page 89: Table 3-5 - Modem (Unit) Parameter Detail

    Entered current date in Current Date 09/10/12 mm/dd/yy format Status Model Read Only Read from Installed Option Modem Model Number M7 Series Status Controller ID Read Only Read from Installed Option ID of Installed Controller in M7009001A-1r1.00 Slot 0 Status RF 1 ID...
  • Page 90 Maintenance M7/M7L/M7LT Modular Satellite Modem Unit Parameters Representation Type Entry Description Event Log Debounce Time Numeric 0.5 to 600 seconds Configuration of a filter in the 5.0 Sec Event log to set the time for logging and display of consecutive instances of the same event.
  • Page 91 M7/M7L/M7LT Modular Satellite Modem Maintenance Unit Parameters Representation Type Entry Description Front Panel LCD Active Selection 0 = 13%, 1 = 25%, 2 = 38%, 3 Active level of LCD backlight Backlight Full = 50%, 4 = 63%, 5 = 75%, 6 = 88%, 7 = Full Front Panel LCD Idle Selection...
  • Page 92 Maintenance M7/M7L/M7LT Modular Satellite Modem Unit Parameters Representation Type Entry Description SNMP Trap Community Alpha – Up to 24 characters and can Set the Trap community name datum Numeric contain any combination of for authentication for SNMP alphanumeric characters, traffic. hyphens (-), and underscore characters (_).
  • Page 93 M7/M7L/M7LT Modular Satellite Modem Maintenance Unit Parameters Representation Type Entry Description IP Control M&C Remote Path Numeric Enter IPv4 address This address is used with the 192.168.002.201 Demod IF AUPC Remote Path setting of “Out IP Control Port” to set the proper destination address for the MCC data that is received by the demodulator.
  • Page 94 Maintenance M7/M7L/M7LT Modular Satellite Modem Unit Parameters Representation Type Entry Description Control RS-485 Format Selection 0 = N,8,1 Remote control data/stop bits N,8,1 1 = E,8,1 and parity. Always 8 data bits 2 = O,8,1 and 1 stop bit. N= No Parity, 3 = M,8,1 E = Even, M = Mark, 4 = S,8,1...
  • Page 95 M7/M7L/M7LT Modular Satellite Modem Maintenance Unit Parameters Representation Type Entry Description Event Power Supply Alarm Selection 1 = Log Selects whether to set and 2 = Log & Send Alert alert for the Power Supply Mask alarm Event System Selection 0 = Do Not Log Selects whether to log the Do Not Log...
  • Page 96 Maintenance M7/M7L/M7LT Modular Satellite Modem Unit Parameters Representation Type Entry Description Alarm OCXO Oven Mask Selection 0=None, 1=to Alarm A, 2=to Selects destination of alarm. Mute & Alarm A Alarm B, 3=to Alarm A & B, M7LT only 4 = Mute CXR, 5 = Mute CXR &...

  • Page 97: Table 3-6 - Modulator Parameter Detail

    M7/M7L/M7LT Modular Satellite Modem Maintenance Unit Parameters Representation Type Entry Description Test Admin Selection 0 = Normal, Normal function is meant for Normal 1 = Enable the typical earth station operator. Enabling the Test Admin function is reserved for depot maintenance. Feature Unit Read Only N/A Shows the option capability of...
  • Page 98 Maintenance M7/M7L/M7LT Modular Satellite Modem Modulator Parameters Representation Type Entry Description IF Modulation Selection 0 = BPSK, 1 = QPSK, Modulation Mode. Some values QPSK 2 = OQPSK, 3 = 8PSK, left available for new options. 4 = 8QAM, 6 = 16QAM IF Spectrum Selection 0 = Normal, 1 = Inverted...
  • Page 99 M7/M7L/M7LT Modular Satellite Modem Maintenance Modulator Parameters Representation Type Entry Description Data FEC Code Rate Selection 0 = 1/2, 1 = 3/4, 2 = 5/6 (Vit) Sets the code rate of the 3 = 7/8. Viterbi FEC encoder. 0 = 2/3 in 8PSK TCM Data RS Mode Selection 0 = Disabled,...
  • Page 100 Maintenance M7/M7L/M7LT Modular Satellite Modem Modulator Parameters Representation Type Entry Description Data FEC Option Selection 0 = 256 Block, (LDPC) Sets the LDPC FEC 4k Block 1 = 512 Block, encoder block size 2 = 1k Block, 3 = 2k Block, 4 = 4k Block, 5 = 8k Block, 6 = 16k Block,...
  • Page 101 M7/M7L/M7LT Modular Satellite Modem Maintenance Modulator Parameters Representation Type Entry Description BUC Remote Parameter 3 Numeric Future Option (Future Option) Selects whether to log the Event Carrier Alarm Selection 0 = Do Not Log change in status of the Carrier Do Not Log 1 = Log alarm.

  • Page 102: Table 3-7 - Demodulator Parameter Detail

    Maintenance M7/M7L/M7LT Modular Satellite Modem Modulator Parameters Representation Type Entry Description Alarm BUC Current Max Numeric +5.00 A Alarm BUC Current Min Numeric +2.50 A Alarm BUC FSK Mask Selection 0=None, 1=to Alarm A, 2=to (Future Option) Selects (Future Option) Alarm B, destination of alarm in the M7LT.
  • Page 103 M7/M7L/M7LT Modular Satellite Modem Maintenance Demodulator Parameters Representation Type Entry Description Status LNB Power Option Read LNB Power Supply Status. +13V, +18V @ 0.050A Only M7L and M7LT Status Hardware Type Read Identification of installed Std IF Demodulator Only Demodulator hardware Status Hardware ID Read Part number of installed...
  • Page 104 Maintenance M7/M7L/M7LT Modular Satellite Modem Demodulator Parameters Representation Type Entry Description Data Bit Rate Demodulator Bit Rate – The max Numeric 1.2 kbps to 59.04 Mbps in 4.096000 Mbps 1 bps resolution. Entered in and min are determined by kbps but display will settings and options.
  • Page 105 M7/M7L/M7LT Modular Satellite Modem Maintenance Demodulator Parameters Representation Type Entry Description Data Descrambler Selection 0 = Disable, (Vit + R-S) Descrambler types. Auto 1 = Auto Types are added if optional 2 = V.35, hardware is installed. The Auto 3 = Intelsat, mode uses IESS standards to 4 = EFD, automatically switch to use...
  • Page 106 Maintenance M7/M7L/M7LT Modular Satellite Modem Demodulator Parameters Representation Type Entry Description LNB Power Selection 0 = Disabled Selects Power and Voltage to an +18 V 1 = +13VDC LNB in the M7LT 2 = +18VDC LNB Voltage Monitor Read Monitors the Voltage to the LNB +17.4 V Only in the M7LT...
  • Page 107 M7/M7L/M7LT Modular Satellite Modem Maintenance Demodulator Parameters Representation Type Entry Description Alarm Carrier Lock Mask Selection 0 = None, 1 = to Alarm A, Selects destination of alarm to Alarm A 2 = to Alarm B, 3 = to Alarm A & B, 4 = Mute CXR, 5 = Mute CXR &...

  • Page 108: Table 3-8 - Synchronous Interface Parameter Detail

    Maintenance M7/M7L/M7LT Modular Satellite Modem Demodulator Parameters Representation Type Entry Description Feature FEC Read Shows the FEC capability of the Vit TCM RS L16k T16k Only modem Feature Activation Numeric 20 characters Allows entry of a Feature code to 00000000000000000000 activate new features.
  • Page 109 M7/M7L/M7LT Modular Satellite Modem Maintenance Synchronous Interface Parameters Representation Type Entry Description I/O Send Clock Source Selection 0 = Internal, 1 = TT Clock Transmit Clock Source. TT Clock 2 = Rcv Clock, 3 = External I/O Send Data Selection 0 = Normal, 1 = Inverted Transmit Data Inversion Normal...
  • Page 110 Maintenance M7/M7L/M7LT Modular Satellite Modem Synchronous Interface Parameters Representation Type Entry Description Send Mux Overhead Ratio Read Only N/A Shows current data to aggregate 3871:4096 ratio for mux. Rcv Mux Mode Selection 0 = Disabled, Enables Demultiplexer to Advanced 1 = IBS Standard, specified mode.
  • Page 111 M7/M7L/M7LT Modular Satellite Modem Maintenance Synchronous Interface Parameters Representation Type Entry Description MCC Send Address Numeric 1 to 254, 255 is a Sets the address of the Send broadcast address MCC port MCC Rcv Address Numeric 1 to 254, 255 is a Sets the address of the Rcv MCC broadcast address port...
  • Page 112 Maintenance M7/M7L/M7LT Modular Satellite Modem Synchronous Interface Parameters Representation Type Entry Description Alarm Send Data Idle Numeric 0000 to 9999 Sec Sets the time before an alarm is 30 sec. raised after there is no data detected at the Tx interface. (0 = Disable) Alarm Rcv Data Mask Selection...

  • Page 113: Table 3-9 - I7 - Ip Interface Parameter Detail

    M7/M7L/M7LT Modular Satellite Modem Maintenance Synchronous Interface Parameters Representation Type Entry Description Test BER EFS Read Only Enter to restart test Error free seconds in the active 94.35% test measurement if ‘Test Rcv BER’ is active Test BER Erred Sec Read Only Enter to restart test Errored seconds in the active test measurement if ‘Test Rcv BER’...
  • Page 114 Maintenance M7/M7L/M7LT Modular Satellite Modem I7 Interface Parameters Representation Type Entry Description Status Hardware S/N Read Only N/A Indicates the serial number of the 1016001 active interface IP Control Mode Selection 0 = Disable, Full Access 1 = Read Only, 2 = Full Access Send WAN Protocol Selection...
  • Page 115 M7/M7L/M7LT Modular Satellite Modem Maintenance I7 Interface Parameters Representation Type Entry Description Stats Send Total Dropped Read Only Press “Edit” then "Enter" (Future Option) Indicated the 1.282E3 to reset the counter total number of packets dropped for all data types Stats Send Total PDR Read Only Press “Edit”...
  • Page 116 Maintenance M7/M7L/M7LT Modular Satellite Modem I7 Interface Parameters Representation Type Entry Description MCC Send Address Numeric 1 to 254, 255 is a Sets the address of the Send broadcast address MCC port MCC Rcv Address Numeric 1 to 254, 255 is a Sets the address of the Rcv MCC broadcast address port...

  • Page 117: Table 3-10 - E7- Express Ethernet Interface Parameter Detail

    M7/M7L/M7LT Modular Satellite Modem Maintenance I7 Interface Parameters Representation Type Entry Description Alarm Send Data Idle Numeric 0000 to 9999 Sec Sets the time before an alarm is 30 Sec. raised after there is no data detected at the Tx interface. (0 = Disable) Alarm Rcv Data Mask Selection...
  • Page 118 Maintenance M7/M7L/M7LT Modular Satellite Modem E7 Interface Parameters Representation Type Entry Description Status Port 3 Read Only N/A Port 3 Status UNCONNECTED Status Port 4 Read Only N/A Port 4 Status Disabled Status Port 5 Read Only N/A SFP Port 5 Status Not Installed Status Send Buffer Read Only N/A...
  • Page 119 M7/M7L/M7LT Modular Satellite Modem Maintenance E7 Interface Parameters Representation Type Entry Description I/O Port 2 Connection Selection 0 = Auto, Sets the connection type of the Auto 1 = 1000BASE-T Ethernet Port 2 = 100BASE-T Full Duplex 3 = 100BASE-T Half Duplex 4 = 10BASE-T Full Duplex 5 = 10BASE-T Half...
  • Page 120 Maintenance M7/M7L/M7LT Modular Satellite Modem E7 Interface Parameters Representation Type Entry Description I/O Port 5 Connection Read Only 0 = Auto Sets the connection type of the Auto Ethernet Port I/O Port 5 VLAN ID Numeric Valid ID: 1 to 4094, VLAN ID for Port 5 Disabled 0 = Disabled,...
  • Page 121 M7/M7L/M7LT Modular Satellite Modem Maintenance E7 Interface Parameters Representation Type Entry Description Stats Send Idle Bytes Read Only Press “Edit” then "Enter" Indicates the number of Idle 9.374E3 to reset the counter Bytes sent Stats Send Idle Usage Read Only Press “Edit” then "Enter" Indicates the percentage of the 1.71% to reset the counter...
  • Page 122 Maintenance M7/M7L/M7LT Modular Satellite Modem E7 Interface Parameters Representation Type Entry Description MCC Mode Selection 0 = Disable Sets the rights of the MCC Full Access 1 = Read Only channel. 2 = Full Access MCC Protocol Selection 0 = M7 Binary Packet M7 Binary Packet MCC Send Rate Limit Numeric...

  • Page 123: Table 3-11 - G7 - Dual G.703/E1 Interface Parameter Detail

    M7/M7L/M7LT Modular Satellite Modem Maintenance E7 Interface Parameters Representation Type Entry Description Alarm IO Mask Selection 0=None, 1=A, 2=B, Selects destination of alarm Mute & Alarm A & B 3=A&B, 4 = Mute CXR, 5 = Mute CXR & Alarm A, 6 = Mute CXR &...
  • Page 124 Maintenance M7/M7L/M7LT Modular Satellite Modem G7 Interface Parameters Representation Type Entry Description Status I/O Port 2 Read Only N/A Port 2 Interface Status Normal Status I/O Port 1 Rcv Buffer Press “Edit” then "Enter" Read Only Only shows if the Rcv Buffer is 100%, 0 Slips and Reset to re-center the buffer.
  • Page 125 M7/M7L/M7LT Modular Satellite Modem Maintenance G7 Interface Parameters Representation Type Entry Description I/O Port 1 Rcv Clock Source Selection 0 = Dmd Rcv Clock Sets the output clock for the Port Send Port 1 Clock 1 = Internal 1 Rcv Buffer 2 = Send Port 1 Clock Any selection other than Dmd 3 = Send Port 2 Clock...
  • Page 126 Maintenance M7/M7L/M7LT Modular Satellite Modem G7 Interface Parameters Representation Type Entry Description Send Mux Mode Selection 0 = Disabled Enables Multiplexer to specified Advanced 1 = Advanced mode. Enable makes other menu 2 = IBS Custom selection below visible Send Mux MCC Rate Numeric 0.000 = Disable Only in Custom or Advanced...
  • Page 127 M7/M7L/M7LT Modular Satellite Modem Maintenance G7 Interface Parameters Representation Type Entry Description ESC Async DTR Selection 0 = Normal, 1 = Ignore ESC DTR line control Ignore ESC Async DSR Selection 0 = Normal, 1 = Force ESC DRS line control Force Active Active MCC Mode...

  • Page 128: Table 3-12 - High Speed Serial Interface (Hssi) Parameter Detail

    Maintenance M7/M7L/M7LT Modular Satellite Modem G7 Interface Parameters Representation Type Entry Description Event Test Active Selection 0 = Do Not Log Selects whether to log the status Do Not Log 1 = Log of the Test Active alarm 2 = Log & Send Alert Event Hardware Alarm Selection 1 = Log...
  • Page 129 M7/M7L/M7LT Modular Satellite Modem Maintenance High Speed Serial Interface Parameters Representation Type Entry Description Status ESC Signaling Read Only N/A Engineering service channel rts CTS DCD dtr DSR interface signaling status. Lower case indicates not-active status, upper case indicates active status.
  • Page 130 Maintenance M7/M7L/M7LT Modular Satellite Modem High Speed Serial Interface Parameters Representation Type Entry Description Send Mux ESC Rate Selection 0 = Disable Only in Custom or Advanced 2.400 kbps 1 to 7 selects standard Mode. Selects framing resources rates 0.300 kbps – 38.4 committed to ESC kbps Communications...
  • Page 131 M7/M7L/M7LT Modular Satellite Modem Maintenance High Speed Serial Interface Parameters Representation Type Entry Description ESC Async DSR Selection 0 = Normal, 1 = Force ESC DRS line control Force Active Active MCC Mode Selection 0 = Disable Activates the Modem Control Full Access 1 = Read Only Channel (MCC)
  • Page 132 Maintenance M7/M7L/M7LT Modular Satellite Modem High Speed Serial Interface Parameters Representation Type Entry Description Event Hardware Alarm Selection 1 = Log Selects whether to set an alert for Do Not Log 2 = Log & Send Alert the status of the Hardware alarm Alarm Send Clock Mask Selection 0 = None, 1 = to Alarm A,...
  • Page 133 M7/M7L/M7LT Modular Satellite Modem Maintenance High Speed Serial Interface Parameters Representation Type Entry Description Test BER Sync Loss Read Only Enter to restart test Measurement of the number of sync losses in the active test if ‘‘Test Rcv BER’ is active Test BER Errors Read Only Enter to restart test Measurement of the number of...

  • Page 134: Remote Command Interface Control

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.6. Remote Command Interface Control The modem command mode allows the use of an external controller or computer to monitor and control the modem via a packet-based message protocol. This mode normally uses the RS–485 connection which allows multiple modems (and other devices) to share the command link under control of a single or multiple entities.
  • Page 135 M7/M7L/M7LT Modular Satellite Modem Maintenance 3. Bit Rate 4. FEC Code Rate 5. Scrambler (Normally Enabled in IESS 308/309 mode – See “Using The Proper Scramble” below) 6. Clock sources set per system requirements. 7. Reed-Solomon Codec settings if enabled 8.
  • Page 136 Maintenance M7/M7L/M7LT Modular Satellite Modem 3.7.4. Using the Internal or an External Reference The modem contains an internal Temperature Compensated Crystal Oscillator (TCXO) reference which determines the basic accuracy of all modem frequency and rate settings. This internal reference is nominally 2.0 ppm stability over normal operating temperature, and exhibits aging less than 1 ppm per year.
  • Page 137 M7/M7L/M7LT Modular Satellite Modem Maintenance 3.7.8. Using the M7L/LT Receive RF Frequency Feature The M7L (and M7LT) can be tuned to any frequency between 950 to 2150 MHz in 1 Hz increments. The modem can display the actual satellite RF frequency being received at the LNB input. To enable this feature simply supply the <Demod: LNB –...
  • Page 138 Maintenance M7/M7L/M7LT Modular Satellite Modem There are two acquisition methods used by the modem. The normal mode for fastest possible acquisition (especially at low data rates) is the “Fast” mode which utilizes an onboard digital signal processor (DSP) to mathematically determine the location of the carrier and lock as fast as possible. This mode initially goes for the largest carrier power within the acquisition range.

  • Page 139: Figure 3-43 - Alarm Processing

    M7/M7L/M7LT Modular Satellite Modem Maintenance  Dual G.703/E1 with Drop and Insert interface (G7)  High Speed Serial Interface (HSSI) (H7) NOTE: Adding an optional interface card or changing an already installed interface should only be attempted by experienced personnel familiar with electronic communications equipment. Refer to Section 2.3.8.2 for details on how to add or change an interface option.

  • Page 140: Table 3-13 - Ascii Characters Available For Unit Station Id

    Maintenance M7/M7L/M7LT Modular Satellite Modem modulator related alarms assigned to Alarm A and all demodulator related alarms assigned to Alarm The open collector outputs for the modulator and demodulator alarms are available on the data interface connector and may be used by redundancy switches for determining alarm status. The modem’s built-in redundancy switch logic uses either all alarms or combinations of the A and B alarms to activate a switch request.

  • Page 141: Data Interface Options - Technical Details

    Debian OS overlaid with the Vyatta Router system. We modify both Debian and Vyatta for this application and also add modifications to support the M7 series of modems. The Vyatta Router provides an industry standard open source and very consistent router facility. The modem...
  • Page 142 The Datum Systems' implementation is based on the Debian “Sqeeze” distribution of Linux with Vyatta router overlay and Datum Systems additions specific to satellite modem use.
  • Page 143 M7/M7L/M7LT Modular Satellite Modem Maintenance 10. “Bridge” is the standard network term for an OSI model Layer 2 process that is intended to connect two segments of the same LAN together having common IP addresses within the same LAN mask. The bridge function only looks at MAC addresses. A bridge can be compared to a smart switch.
  • Page 144 Maintenance M7/M7L/M7LT Modular Satellite Modem 3.8.1.4. Initial Installation and Configuration It is highly advised that you also read the documentation at www.vyatta.org to get a feel for configuring and controlling the Vyatta router. Vyatta is a modern up to date router overlay on Linux comparable to Cisco or Juniper IOS and using similar language and procedures.

  • Page 145: Figure 3-44 - Express Ethernet Interface Block Diagram

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.8.2. Express Ethernet Interface (E7) The E7 Express Ethernet interface is a layer 2 Ethernet bridge that provides high speed switched Ethernet capability to the M7. The E7 interface does not provide any IP routing functionality. The purpose of the E7 is to act as an interface for up to four (4) Ethernet LAN ports within a single satellite modems as part of point-to-point or point-to-multipoint satellite network.
  • Page 146 Maintenance M7/M7L/M7LT Modular Satellite Modem “Auto” but each port can be configured to “1000BASE-T”, “100BASE-T Full Duplex”, “100BASE-T Half Duplex”, “10BASE-T Full Duplex”, or “10BASE-T Half Duplex”. 3.8.2.2. SFP Interface - Port 5 This port allows the E7 to offer a wide variety of optical interfaces (1000Base-T, 1000Base-SX multimode, and 1000Base-LX and BX single mode) from qualified vendors.

  • Page 147: Figure 3-45 - Point-To-Point Satellite Network

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.8.2.4. WAN Mode The E7 allows for Ethernet bridge functionality in either a point-to-point (PtP) or a point-to-multipoint (PtMP) satellite network. This functionality is configured in the menu item <Intf: Send WAN Mode> for the transmit modem section and <Intf: Rcv WAN Mode> for the receive modem section. NOTE: The E7 allows for over the satellite interoperability with some legacy Datum modems by setting the menu item <Intf: Send WAN Protocol = M500 HDLC>...

  • Page 148: Figure 3-46 - Point-To-Multipoint Satellite Network

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.8.2.4.2. Point-to-Multipoint (PtMP) Satellite Network Figure 3-46 shows a typical PtMP satellite network that could be used for extending a local LAN and Internet access to multiple remote locations. Figure 3-46 - Point-to-Multipoint Satellite Network Configuration of the E7 interface in the hub M7s is critical to proper network operation.

  • Page 149: Figure 3-48 - Four Site Mesh Network Example

    M7/M7L/M7LT Modular Satellite Modem Maintenance The menu setting for the E7 interface in the hub M7 multi-demod #2 and #3 would be:  <Intf: Rcv WAN Mode = Hub Bridge PTMP>  <Intf: I/O Port 1 Mode = Dmd Output I/O> ...

  • Page 150: Figure 3-49 - Configuration Of A Mesh Network Site With A Spare Demodulator

    Maintenance M7/M7L/M7LT Modular Satellite Modem PLL LNB 20W BUC TX 950-2150 MHz RF Divider N-Type/50 Ohm/10MHz M7LD Dual-Demod RX 950-2150 MHz RX 950-2150 MHz 230 VAC BUC LNB Power 13/18 VDC SMA / 50 Ohm Power Supply N-Type/50 Ohm/10MHz M7LT Remote Terminal M7LD Dual-Demod 10/100/1GbE Bridge Demod Output...
  • Page 151 M7/M7L/M7LT Modular Satellite Modem Maintenance 3.8.2.5. Modem Control Channel (MCC) The E7 interface provides an in-band management channel that allows communications over the satellite link to the modem(s) at the distant end. Activation for read/write capability over the MCC is set in menu item <Intf: MCC Mode = Full Access>.

  • Page 152: Data Interface Clock Options

    Maintenance M7/M7L/M7LT Modular Satellite Modem G7 – Dual G.703/E1 Interface 3.8.3. 3.8.3.1. E1 Signal Structure Each port of the Dual G.703/E1 interface operates at a nominal rate of 2.048Mbps and adds 3975 bits of overhead (<0.2%) to the data rate transmitted via the modulator. This overhead is needed to allow for independent operation of the two (2) G.703/E1 ports.

  • Page 153: Figure 3-50 - Modulator Clock Source Options

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.9.1. Modulator Bit Timing When the modem is configured with any serial interface option, the modulator always outputs the Send Timing signal on the baseband interface connector. In a typical network, this timing signal is used to generate the bit timing for the transmission toward the satellite.

  • Page 154: Figure 3-51 - Demodulator Clock Source Options

    Maintenance M7/M7L/M7LT Modular Satellite Modem Send Data From DATA 3.9.2. Demodulator Timing Interface When the modem is configured with any serial interface option, the modem will always output receive Send timing synchronous with the receive data and is a source of the timing for the local network. If the Timing To CLOCK Modulator...
  • Page 155 M7/M7L/M7LT Modular Satellite Modem Maintenance 3.9.2.1. Demodulator Receive Data FIFO Operation The modem has a built-in First-In First-Out (FIFO) buffer on the receive data channel that may be enabled to compensate for cyclical variations in the receive data rate. Cyclical variations are most often caused by the daily movement of the satellite in its position resulting in a varying distance from earth station locations.
  • Page 156 Maintenance M7/M7L/M7LT Modular Satellite Modem The FIFO may also be re-centered at any time on command from either the front panel or via the remote control. At the front panel the command is <Intf: Status - Rcv Buffer> and pressing the “1” key, then "Enter"...

  • Page 157: 3.10. Automatic Uplink Power Control (Aupc) Operation

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.10. Automatic Uplink Power Control (AUPC) Operation The modem has built-in logic for Automatic Uplink Power Control (AUPC). There are three (3) operating modes available: Point-to-Point, Local, and Point-to-Multipoint. NOTE: The examples following will assume the modems at all ends of the satellite links are configured with the M7 Express Ethernet Interface (E7).

  • Page 158: Figure 3-52 - Aupc Remote Enabled Network

    Maintenance M7/M7L/M7LT Modular Satellite Modem Function Selection Criteria Description Intf: MCC Send Address 1 to 254. Sets the address of the Send MCC 255 = Global port Intf: MCC Rcv Address 1 to 254. Sets the address of the Rcv MCC 255 = Global port 3.10.1.
  • Page 159 M7/M7L/M7LT Modular Satellite Modem Maintenance saturation but should be several dB above the nominal operating point for margin, e.g. -10.0 dBm. 9. Set the < Mod: IF - AUPC Min Level> parameter to the desired level. Determine the value for this parameter by calculating the minimum power that is allowed to prevent the link from dropping below the operating threshold but should be several dB below the nominal operating point for margin, e.g.

  • Page 160: Figure 3-53 - Hub Modulator With Optional Aupc Demodulator

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.10.2.1. AUPC Local Mode Setup Guide Assume a working link between A and any number of sites (N) without any multiplexers or AUPC enabled and an minimum operating link performance at the remotes of 7.0 dB Eb/No. The AUPC Local setup simply requires setting up the AUPC parameters in the Site A transmitting modem (the Hub).

  • Page 161: Figure 3-54 - Point-To-Multipoint Aupc Configuration For A Four (4) Site Network

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.10.3. AUPC Point-to-Multipoint Mode The AUPC PtMP function requires at least a 500 baud data channel between the hub site and each remote site in order to operate. This data channel will be an in-band channel in the outbound carrier and in each of the inbound carriers from the remote sites.
  • Page 162 Maintenance M7/M7L/M7LT Modular Satellite Modem 3.10.3.1.1. HUB (Site A) Modulator AUPC PtMP Setup 1. Take note of the <Unit: IP Control Address> parameter as it will be required later in the setup of the hub dual demodulators. 2. Set the <Unit: IP Control M&C Port Number> parameter to 9101. 3.
  • Page 163 M7/M7L/M7LT Modular Satellite Modem Maintenance 2. Set the <Unit: IP Control M&C Port Number> parameter to 9101. Port 9101 is the default port and this can be set per network requirements BUT all units in the AUPC PtMP configuration MUST be set to the same port number. 3.
  • Page 164 Maintenance M7/M7L/M7LT Modular Satellite Modem 8. Set the < Mod: IF - AUPC Min Level> parameter to the desired level. Determine the value for this parameter by calculating the minimum power that is allowed to prevent the link from dropping below the operating threshold but should be several dB below the nominal operating point for margin, e.g.

  • Page 165: 3.11. Special Control Mechanisms

    M7/M7L/M7LT Modular Satellite Modem Maintenance 3.11. Special Control Mechanisms The modem includes several special controls that were built in for specific customer systems, but are available in the standard modem. These are not considered normal operation so care must be taken if they are used.

  • Page 166: 3.12. Storing And Recalling Configuration

    Maintenance M7/M7L/M7LT Modular Satellite Modem 3.11.3. Analog Monitor Input Operation The modem allows for an analog voltage input at pins 4 (voltage) and 6 (gnd) on connector the rear panel Alarms connector (J6) to control alarms indications and/or the transmit carrier. The analog input signal can be set to control the following functions: ...

  • Page 167: Built-In 1:1 Redundancy Mode Operation (Future Option)

    M7/M7L/M7LT Modular Satellite Modem Maintenance The modulator burst mode is controlled by the interface RTS/CTS and data flag signals. The sequence of events for the burst mode is as follows: 1. The RTS from the DTE device is normally active. The idle character from the DTE is a continuous Mark condition.
  • Page 168 Maintenance M7/M7L/M7LT Modular Satellite Modem NOTE: It is important in L-Band systems to use special splitters and combiners that have the ability to pass DC used to power the BUC and LNB with sufficient current capacity. 3.14.1. Set-Up Procedure for 1:1 Redundancy (Future Option) If redundancy mode is to be set up between a pair of modems then the following procedure is followed during installation and setup: 1.
  • Page 169 M7/M7L/M7LT Modular Satellite Modem Maintenance 3.14.3. Operating 1:1 Redundancy Mode Operation of a redundant pair of modems consists mainly of determining the status of units and forcing transfer of operation from one unit to the other. A quick status to determine which modem is currently on ”On-Line” and the failure state of the paired modems is done by viewing the LED indicators on the front panels.

  • Page 171: Maintenance

    M7/M7L/M7LT Modular Satellite Modem Maintenance Maintenance 4.1. Periodic Maintenance The modem requires no mandatory periodic field maintenance procedures. The unit contains no required periodic adjustments and the digital calibration data is held in EEPROM. Should a unit be suspected of a defect in field operations after all interface signals are verified the proper procedure is to replace the unit with another known working modem.

  • Page 172: Table 4-1 - Factory Default Parameters

    Maintenance M7/M7L/M7LT Modular Satellite Modem 4.2.2. Factory Default Parameters New modems from the factory have default values placed into the non-volatile memory for operating parameters. If a Monitor/Control System does not configure the modem automatically via remote control, the modem can be easily configured from the front panel or through the HTTP interface using a standard internet browser.

  • Page 173: Internal Modem Test Functions

    M7/M7L/M7LT Modular Satellite Modem Maintenance 4.3. Internal Modem Test Functions When a modem is first installed and placed in service it is common to run several tests to verify proper performance of each of the equipment items in the link. The modem is designed to aid in this process by providing built in test modes geared to verifying performance, and isolating potential problems.
  • Page 174 Maintenance M7/M7L/M7LT Modular Satellite Modem 4.3.1.1. Near End Terrestrial Data Loopback: The near end terrestrial data loopback will be the closest loopback to the input data connection of the modem. If data is returned and received properly this loopback will indicate the DTE wiring and connection to the modem are correct.
  • Page 175 M7/M7L/M7LT Modular Satellite Modem Maintenance 4.3.2. Built-in BERT The modem contains a complete transmit and receive Bit Error Rate Test (BERT) function. Each direction is independent and can be used for either loop-back testing or uni-directional testing with another modem on the other end of the link. Since the internal test patterns are based on industry standard test patterns it is possible to use the built in BERT with an external BERT or any brand of modem at the other link end as long as the interoperability of the test patterns has been verified.

  • Page 176: Troubleshooting

    Maintenance M7/M7L/M7LT Modular Satellite Modem In the loop-back diagram shown above, the BER test sets are physically between the satellite and terrestrial loop-back functions. Thus data traversing through either of these loop-backs does not involve the BER test sets, even if enabled. If the built-in BERT is being used the local “satellite loop- back”...
  • Page 177 M7/M7L/M7LT Modular Satellite Modem Maintenance 4.4.2. Symptom: The Modem acquires a carrier but loses lock intermittently.  Possible Cause: Receive acquisition range set too narrow. When the carrier drifts outside of the acquisition range the demodulator loses lock until the carrier returns inside the acquisition range. ...

  • Page 178: Updating Modem Firmware

    Maintenance M7/M7L/M7LT Modular Satellite Modem 4.5. Updating Modem Firmware The M7 modem series system firmware is updated by reprograming the SD card. If the unit requires a firmware update, contact Datum customer service to request the proper firmware for the specific unit that requires update.
  • Page 179 M7/M7L/M7LT Modular Satellite Modem Maintenance Clicking on the “Browse” button will open a dialog box to allow navigation to the folder location where the file that was saved after it was downloaded from the Datum FTP site. Click “Update” to begin the process to update the M7 firmware M7/M7L/M7LT - Rev.
  • Page 180 Maintenance M7/M7L/M7LT Modular Satellite Modem Status of the update will be shown in four (4) screens. The first status will show the process of uploading the installation file into an internal memory location. The second status will show the process of verification of the installation file that was uploaded into an internal memory location.
  • Page 181 M7/M7L/M7LT Modular Satellite Modem Maintenance At the end of the extraction process, the M7 will reboot. At this point, the current browser session will terminate and the “Login” page will display. Reenter the login credentials to verify the update process was completed properly. In the “Unit-Test”...

  • Page 182: Upgrading The Modem Feature Set

    4.6. Upgrading the Modem Feature Set Each of the modems in the M7 series is available currently with many different “Feature Sets”, representing basic capabilities that suit it to certain tasks. They are currently given a feature set code representing the elements of those features. Refer to section 1.7 which shows the capabilities of each standard feature set.

  • Page 183: Figure 4-3 - Modulator Feature Page

    M7/M7L/M7LT Modular Satellite Modem Maintenance Figure 4-3 – Modulator Feature Page Figure 4-4 – Demodulator Feature Page Figure 4-5 – E7 Interface Feature Page M7/M7L/M7LT - Rev. 0.05 4-13...

  • Page 184: Frequently Asked Questions - Faq

    There are several modes that are probably not compatible for several reasons. First is that there is no standard for implementation of TPC. Second, Datum Systems spent a lot of time and development in implementing a full set of TPC parameters (i.e. Rates 1/2, 3/4 and 7/8), and insuring the absolute best performance with no compromises.
  • Page 185 M7/M7L/M7LT Modular Satellite Modem Maintenance and select option “0” or “Factory”. From that point you make necessary changes to set the desired configuration. Once all parameters are set as required the configuration can be saved using the <Unit: Configuration - Store> control. From there you can always go back to this configuration by recalling it.
  • Page 186 Maintenance M7/M7L/M7LT Modular Satellite Modem placed closer than the required receive acquisition range. Using this scheme requires the use of the demodulator search mode. Intelsat in the latest IESS 308/309 has changed the definition of the C0 and C1 values. This option allows compatibility with any definition.
  • Page 187 M7/M7L/M7LT Modular Satellite Modem Maintenance Why can’t I find or see a certain option parameter that is shown in the tables? 4.7.3.5. Many parameters are only available when another option has been enabled which requires that parameter. For example, the <Demod: IF – Sweep Time> parameter is only visible if the <Demod: IF –...
  • Page 188 Where do I get a “Y” cable to implement 1:1 redundancy? 4.7.5.2. These may be purchased from Datum Systems or it is possible to build your own. The connections are discussed in Chapter 2 “Installation” and shown in Appendix C, “Cabling Specifications”.
  • Page 189 M7/M7L/M7LT Modular Satellite Modem Maintenance 4.7.6. Manual 4.7.6.1. What do the abbreviations on the front panel and in the manual mean? A good example is the display and manual representation "Redundcy SW Rqst". Unfortunately the display does not hold enough characters to display the full text of "Redundancy Switch Request". Following is a list of abbreviations used.
  • Page 190 Maintenance M7/M7L/M7LT Modular Satellite Modem Level Maximum Modem Control Channel Minimum Modulator Multiplexer Option OverHd Overhead RCV, Rcv Receive, into the Demodulator Redundcy Redundancy Reference Rqst Request Reed-Solomon – Type of FEC RS, R-S Satellite SCPC Single Channel Per Carrier Symbol Error Rate Satellite network Interface Processor, our name SnIP...

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