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Comtech EF Data CRS-150 Installation And Operation Manual

1:1 redundancy switch
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CRS-150
1:1 Redundancy Switch
Installation and Operation Manual
Accessory Product for use only with
Comtech EF Data CDM-600 Modems
(Requires Modem Firmware Version 1.1.0 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/CRS150.IOM
Revision 2

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Summary of Contents for Comtech EF Data CRS-150

  • Page 1 1:1 Redundancy Switch Installation and Operation Manual Accessory Product for use only with Comtech EF Data CDM-600 Modems (Requires Modem Firmware Version 1.1.0 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 2 Copyright © 2011 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 3: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ......................III  TABLES ............................VI  FIGURES ............................ VI  PREFACE ..........................VII  About this Manual ............................ vii  Reporting Comments or Suggestions Concerning this Manual .............. vii  Related Documents ........................... vii  Conventions and References ........................viii  Warnings, Cautions, and Notes ......................
  • Page 4 Dimensional Envelope ....................... 1–7  CHAPTER 2.  INSTALLATION .................... 2–1  2.1  Unpacking and Inspecting the Shipment ................. 2–1  2.2  Rack-Mounting the CRS-150 ....................2–2  CHAPTER 3.  CONNECTOR PINOUTS ................3–1  3.1  Connector Overview ........................3–1  3.2  Front Panel Connectors ......................3–3 ...
  • Page 5 Forced Switchover via the CDM-600 Front Panel ............5–3  5.2.2.2  Forced Switchover via Remote Bus ................5–3  5.2.3  Replacement of Standby Unit ....................5–3  5.3  CRS-150 Switch DIP Settings ....................5–4 APPENDIX A.  CABLE DRAWINGS ..................A-1  A.1  Introduction ..........................A-1 ...
  • Page 6 A.3.7  Modem-to-Switch Data Cable, DB-9M DB-9M ............A-11  TABLES Table 3-1. CRS-150 External Connectors (Front and Rear Panel) ............3–2 Table 5-1. CRS-150 DIP Switch Settings ....................5–4 FIGURES Figure 1-1. CRS-150 1:1 Redundancy Switch ..................1–1 Figure 1-2. CRS-150 1:1 Redundancy Switch – Panel Views ..............1–2 Figure 1-3.

  • Page 7: Preface

    PREFACE About this Manual This manual provides installation and operation information for the Comtech EF Data CRS-150 1:1 Redundancy Switch, used for 1:1 Redundancy operations with the CDM-600 Satellite Modem. This is a technical document intended for the persons responsible for the operation and maintenance of the CRS-150 and CDM-600.

  • Page 8: Conventions And References

    CRS-150 1:1 Redundancy Switch Revision 2 Preface MN/CRS150.IOM Conventions and References Warnings, Cautions, and Notes A WARNING gives information about a possible hazard that MAY CAUSE DEATH or SERIOUS INJURY. A CAUTION gives information about a possible hazard that MAY CAUSE INJURY or PROPERTY DAMAGE.

  • Page 9: Electromagnetic Compatibility (Emc) Compliance

    This equipment meets the Electromagnetic Compatibility: Generic Immunity standard as defined in EN50082-1:1998. In order that the CRS-150 continues to comply with these standards, observe the following instructions: • Connections to the transmit and receive IF ports (BNC female connectors) should be made using a good quality coaxial cable;...

  • Page 10: Equipment Connection

    Modems. These modems supply DC operating current (electronically fused and protected) and control signals for the correct functioning of this unit. Connection to other manufacturers’ equipment could result in damage to the unit. The CRS-150 is not compatible with other Comtech EF Data modems not listed in this manual.

  • Page 11: Telecommunications Terminal Equipment Directive

    In accordance with the Telecommunications Terminal Equipment Directive 91/263/EEC, this equipment should not be directly connected to the Public Telecommunications Network. Environmental The CRS-150 must not be operated in an environment where the unit is exposed to extremes of ° °...

  • Page 12: Exclusive Remedies

    MN/CRS150.IOM The warranty does not cover replacement or repair necessitated by loss or damage from any cause beyond the control of Comtech EF Data Corporation, such as lightning or other natural and weather related events or wartime environments. The warranty does not cover any labor involved in the removal and or reinstallation of warranted equipment or parts on site, or any labor required to diagnose the necessity for repair or replacement.

  • Page 13: Customer Support

    Tempe, Arizona 85281 USA 480.333.2200 (Main Comtech EF Data number) 480.333.4357 (Customer Support Desk) 480.333.2161 FAX To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or replacement: • Contact the Comtech EF Data Customer Support Department during normal business hours.
  • Page 14 CRS-150 1:1 Redundancy Switch Revision 2 Preface MN/CRS150.IOM Notes:...

  • Page 15: Chapter 1. Introduction

    A 1:1 redundancy system comprises an online modem, a redundant (standby) modem, and the CRS-150 1:1 Redundancy Switch. Note that the CRS-150 is intended for mounting at the rear of a pair of modems in a 19” rack system.

  • Page 16: Description Of Features

    The Receive IF signal is split and fed to both modems. This means that both modems see identical Tx and Rx traffic signals all the time, which permits the CRS-150 to continually compare the fault status of both modems. If the CRS-150 sees an identical fault on both modems at the same time, it will infer that the fault condition exists in the external system, and eliminate an unnecessary switchover.
  • Page 17 Revision 2 Introduction MN/CRS150.IOM As a companion product for the CDM-600, the CRS-150 provides full protection for all Open Network overhead signals (IDR Backward Alarms, Overhead Data Channels, Audio, etc.), as well as external reference signals. An advantage of the CRS-150 redundancy system is the Auxiliary Serial connection between the modem pair.

  • Page 18: Functional Description

    MN/CRS150.IOM Functional Description The CRS-150 connects to two modems – the online modem (identified for the purpose of this example as Unit ‘A’), and the redundant (standby) modem (Unit ‘B’). The CRS-150 monitors the fault status and controls the routing of data and IF signals to and from these two modems. In the case of an equipment failure, switching automatically takes place to protect the traffic circuit.

  • Page 19: Summary Of Specifications

    Introduction MN/CRS150.IOM same time, the “On-Line” LED – i.e., the green Unit ‘A’ LED or the yellow Unit ‘B’ LED – will illuminate on the CRS-150 front panel to indicate which modem is online. Summary of Specifications Equipment Type 1:1 Redundancy Switch...
  • Page 20 CRS-150 1:1 Redundancy Switch Revision 2 Introduction MN/CRS150.IOM IF Switching/ • Transmit IF: Switched by RF relay (0.3 dB max loss) Splitting • Receive IF: Passive power splitting (3.5 dB max loss) IF Impedance • Optimized for 50Ω (> 20 dB return loss on external IF ports) •...

  • Page 21: Dimensional Envelope

    CRS-150 1:1 Redundancy Switch Revision 2 Introduction MN/CRS150.IOM Dimensional Envelope Figure 1-3. CRS-150 Dimensional Envelope 1–7...
  • Page 22 CRS-150 1:1 Redundancy Switch Revision 2 Introduction MN/CRS150.IOM Notes: 1–8...

  • Page 23: Chapter 2. Installation

    Unpacking and Inspecting the Shipment Figure 2-1. Unpacking and Inspecting the Shipment The CRS-150 1:1 Redundancy Switch and its Installation and Operation Manual were packaged and shipped in a reusable cardboard carton containing protective foam spacing. This equipment contains parts and assemblies sensitive to damage by Electrostatic Discharge (ESD).

  • Page 24: Rack-Mounting The Crs-150

    Proceed to Section 2.2 Rack-Mounting the CRS-150. Rack-Mounting the CRS-150 The CRS-150 is designed to be mounted into the rear of a rack, behind the CDM-600 modems. This typical configuration is shown in Figure 2-1. Figure 2-2. Typical CDM-600/CRS-150 1:1 Redundancy Installation Once the CRS-150 has been installed into operating position, it will be ready for configuration and cabling connections.

  • Page 25: Chapter 3. Connector Pinouts

    Rear Panel View Figure 3-1. CRS-150 Connectors The front and rear panels of the CRS-150 1:1 Redundancy Switch are shown in Figure 3-1. The front panel connectors provide all necessary to connect all equipment external to the 1:1 redundancy setup. The rear panel connectors of the CRS-150 1:1 Redundancy Switch provide all the connections between the CRS-150 and the two CDM-600 modems in the 1:1 pair.

  • Page 26: Table 3-1. Crs-150 External Connectors (Front And Rear Panel)

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM Table 3-1. CRS-150 External Connectors (Front and Rear Panel) Connector Group Name Connector Type Function (Chapter 3 Sect. Ref.) Front Panel Receive IF BNC 50Ω female RF Input (Sect. 3.2) (Sect. 3.2.1) Transmit IF BNC 50Ω...

  • Page 27: Front Panel Connectors

    Connector Pinouts MN/CRS150.IOM Front Panel Connectors Unless otherwise noted, the connectors featured on the front panel of the CRS-150 are intended for connection to all equipment external to the 1:1 redundancy setup. 3.2.1 Front Panel IF Connectors – Receive IF and Transmit IF, 50Ω BNC The Receive IF and Transmit IF port connectors are both 50Ω...

  • Page 28: Front Panel Terrestrial Data Connectors

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.2.2 Front Panel Terrestrial Data Connectors 3.2.2.1 Overhead Data Connector, DB-25M The 25-pin ‘D’ Type male (DB-25M) Overhead data connector is used for passing components of Intelsat specified overhead frame structures. These include 64 kbps EIA-422 and 1/16 IBS overhead ESC at EIA-232.

  • Page 29: Data Interface Connector, Db-25F

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.2.2.2 Data Interface Connector, DB-25F The 25-pin ‘D’ Type female (DB-25F) Data Interface connector connects to customer’s terrestrial equipment. It conforms to the EIA-530 pinout, which allows for connection of different electrical standards, including EIA-422, V.35, and EIA-232.

  • Page 30: Audio Connector, Db-9F

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.2.2.3 Connector, DB-9F Audio The 9-pin ‘D’ Type female (DB-9F) Audio connector is used for the two 32 kbps ADPCM audio inputs and outputs (600Ω transformer coupled, balanced signals). These can be used for both ESC voice circuits in IDR mode, or as the primary data (FAST option).

  • Page 31: 3.2.2.4.2 Rx And Tx (Unbalanced) G.703 Connectors, 75Ω Bnc

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.2.2.4.2 Rx and Tx (Unbalanced) G.703 Connectors, 75Ω BNC Two 75Ω BNC female connectors are provided for unbalanced operation at the G.703 data rates of E1 (2.048 Mbps), T2 (6.312 Mbps), or E2 (8448 kbps).

  • Page 32: Front Panel Utility Connectors

    Comtech EF Data can supply the appropriate AC/DC supply, complete with IEC power input connector (Part number PS/AC18W01P01). For more information about Comtech EF Data accessories that make use of this interface, see Chapter 1. INTRODUCTION. 3–8...

  • Page 33: Rear Panel Connectors

    MN/CRS150.IOM Rear Panel Connectors The rear panel connectors of the CRS-150 1:1 Redundancy Switch provide all the connections between the CRS-150 and the two CDM-600 modems in the 1:1 pair. With the exception of the mandatory main connections between the 25-pin data ports (Overhead A/B, Data Interface A/B), the remaining connections are purely optional.

  • Page 34: Rear Panel Terrestrial Data Connectors

    Not Used *Use for all non-Drop and Insert and T2/E2 balanced applications. In order to simplify the cabling between the CDM-600 modems and the CRS-150 Redundancy Switch, all G.703 signals are carried between modems and switch on the BALANCED connections, regardless of the choice of balanced/ unbalanced connectors on the CRS-150 front panel.

  • Page 35: Audio A And B Connectors, Db-9F

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.3.2.2 Audio A and B Connectors, DB-9F The 9-pin ‘D’ Type female (DB-9F) Audio A and B connectors are used for the two 32 kbps ADPCM audio inputs and outputs (600Ω transformer coupled, balanced signals).

  • Page 36: Overhead Data A And B Connectors, Db-25M

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.3.2.3 Overhead Data A and B Connectors, DB-25M The 25-pin ‘D’ Type male (DB-25M) Overhead Data A and B connectors are used for passing components of Intelsat specified overhead frame structures. These include 64 kbps EIA-422 and 1/16 IBS overhead ESC at EIA-232.

  • Page 37: Data Interface A And B Connectors, Db-25F

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.3.2.4 Data Interface A and B Connectors, DB-25F The 25-pin ‘D’ Type female (DB-25F) Data Interface A and B connectors conduct data input and output signals to and from the modem, and connects to customer’s terrestrial equipment..

  • Page 38: Rear Panel Utility Connectors

    CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.3.3 Rear Panel Utility Connectors 3.3.3.1 IDR Alarms A and B Connectors, DB-15F The 15-pin Type ‘D’ female (DB-15F) IDR Alarms A and B interface connectors provide four Form-C backward alarm outputs specified by Intelsat.

  • Page 39: Ext Ref A And B Connectors, 50Ω Bnc

    Comtech EF Data CIC-20 LVDS to HSSI Interface Converter module is available. Also available, for conversion of LVDS to ASI, is the Comtech EF Data CIC-35 LVDS to ASI Interface Converter module. Either module typically connects directly to the rear of a standalone CDM-600.
  • Page 40 CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM 3.4.1 CIC-20 HSSI Connector, HD-50F The 50-pin type Mini-D/SCSI2 female HSSI connector on the optional CIC-20 LVDS to HSSI Interface Module provides HSSI data transmission as converted for use from the User Data (LVDS) interface.

  • Page 41: E1/T1 Rj-48 Connection Via Balanced G.703 Interface Connector

    For E1/T1 operation via an RJ-48 user interface, the optional CN-0000268 Adapter, shown in Figure 3-2, may be purchased from Comtech EF Data to adapt the Balanced E1/T1 G.703 DB-15F connector on the front panel of the CRS-150 to an RJ-48 female connection.
  • Page 42 CRS-150 1:1 Redundancy Switch Revision 2 Connector Pinouts MN/CRS150.IOM Notes: 3–18...

  • Page 43: Chapter 4. Cables And Connections

    For example, the Transmit IF from Unit ‘A’ connects to the Tx IF port ‘A’ on the CRS-150, and Unit ‘B’ to ‘B’, and the same for the Rx IF connections. Failure to observe this requirement will result in the system malfunctioning.

  • Page 44: Cabling To The Cdm-600

    MN/CRS150.IOM Cabling to the CDM-600 Examples for connecting a pair of CDM-600 modems together with the CRS-150 are provided in this section. Once all connections have been made, refer to Chapter 5. MODEM AND SWITCH CONFIGURATION in this manual – as well as the CDM-600 Satellite Modem Installation and Operation Manual –...

  • Page 45: 4.2.2 Modem-To-Switch Control Interface Connection

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.2 Modem-to-Switch Control Interface Connection Part No. Description CA/USB-AM/BM-3 Auxiliary Serial Cable, USB Type ‘B’ to USB Type ‘A’ (3’) Although these ports use USB connectors, the signals are not USB compatible.

  • Page 46: 4.2.3 Modem-To-Switch If Interface Connection

    4.2.3 Modem-to-Switch IF Interface Connection EXAMPLE: The Tx IF from ‘ Modem A’ connects to the ‘Tx IF A’ port on the CRS-150; similarly, the Tx IF from ‘Modem B’ connects to the ‘Tx IF B’ port on the CRS-150.

  • Page 47: 4.2.4 Modem-To-User Utility Interface Connection And Examples

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.4 Modem-to-User Utility Interface Connection and Examples 4.2.4.1 IDR Alarms Data Interface Example Part No. Description CA/WR9564-4 Data Cable, DB-15M DB-15M (4’) Figure 4-3. IDR Alarms Interface Example 4–5...

  • Page 48: External Reference Data Interface Example

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.4.2 External Reference Data Interface Example Part No. Description PL/0813-4 Coax Cable, 75Ω Type ‘BNC’ (4’) Figure 4-4. Ext Ref (External Reference) Interface Example 4–6...

  • Page 49: 4.2.5 Modem-To-User Data Interface Connection And Examples

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.5 Modem-to-User Data Interface Connection and Examples Aside from control, IF, and utility switch-to-modem cabling shown previously, there are a number of data interface configurations available with the CDM-600. The block diagram shown in Figure 4-5 is typical for the examples shown in Sects.

  • Page 50: Rs-422/232 Interface Example

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.5.1 RS-422/232 Interface Example Part No. Description PL/6233 Data/Control Cable, Universal, DB-25M DB-25M (4’) Figure 4-6. RS-422/232 Interface Example 4–8...

  • Page 51: Hssi Data Interface Example

    CIC-20 HSSI/LVDS Interface Converter. This module converts the DB-25F Data Interface connector on the front panel of the CRS-150 into a HD-50F connector used for the HSSI data interface. The module’s DB-25F connector interface facilitates data pass-through for the DB-25M Overhead data user connection.

  • Page 52: Balanced Interface Example

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.5.3 G.703 Balanced Interface Example Part No. Description CA/WR9563-4 Data Cable, DB-15M DB-15M (4’) Figure 4-8. G.703 Balanced Interface Example 4–10...

  • Page 53: Unbalanced Interface Example

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.5.4 G.703 Unbalanced Interface Example Part No. Description CA/WR9563-4 Data Cable, DB-15M DB-15M (4’) Figure 4-9. G.703 Unbalanced Interface Example 4–11...

  • Page 54: Asi Data Interface Example

    CIC-35 DVB-ASI/LVDS Interface Converter. This module converts the DB-25F Data Interface connector on the CRS-150 front panel into the BNC connector pair used for the ASI data interface. The module’s DB-25F connector interface facilitates data pass-through for the DB-25M Overhead data user connection.

  • Page 55: E1/T1 Data Interface Example

    For E1/T1 operation via an RJ-48 user interface, the optional CN-0000268 Adapter, shown in Figure 4-11, may be purchased from Comtech EF Data to adapt the DB-15F Balanced G.703 connector on the front panel of the CRS-150 to an RJ-48 female connection.

  • Page 56: Overhead Data Interface Example

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.5.7 Overhead Data Interface Example Part No. Description CA/WR9040-4 Data Cable, DB-25M DB-25M (4’) Figure 4-12. Overhead Interface Example 4–14...

  • Page 57: Audio Data Interface Example

    CRS-150 1:1 Redundancy Switch Revision 2 Cables and Connections MN/CRS150.IOM 4.2.5.8 Audio Data Interface Example Part No. Description Data Cable, DB-9M DB-9M (4’) CA/WR9378-4 Figure 4-13. Audio Interface Example 4–15...

  • Page 58: Cabling To The Cdm-600L (Clm-9600L)

    Figure 4-14. CDM-600L (CLM-9600L) Block Diagram: Cable Connections The following table lists cable assemblies that may be supplied with the CRS-170A when used with the CDM-600L (CLM-9600L) and CRS-150. Other cables between the CRS-150 and the CDM-600L (CLM-9600L) modems are supplied with the CRS-150.

  • Page 59: Chapter 5. Modem And Switch Configuration

    Chapter 5. MODEM AND SWITCH CONFIGURATION Overview In order to avoid damage to the modems and CRS-150 switch, it is important for the user to follow this sequence of configuration: First, connect cables between the (powered OFF) modems and switch as •...

  • Page 60: Configuration Of Cdm-600S For 1:1 Redundancy

    The procedure to configure each CDM-600 modem for automatic 1:1 redundancy is as follows: 1. As noted previously, ensure that all cables – i.e., control, IF, utility, and data – have been properly connected between the modems and the CRS-150 as directed in Chapter 4. CABLES AND CONNECTIONS.

  • Page 61: Manual Redundant Operation (Forced Switchover)

    3. Once it has been determined that the 1:1 system is operational, the user should set up the conditions, via the “Switch Mode” DIP switches on the front panel of the CRS-150, by which the CRS-150 will initiate an automatic switchover. See Sect. 5.3 for details.

  • Page 62: Crs-150 Switch Dip Settings

    Modem and Switch Configuration MN/CRS150.IOM CRS-150 Switch DIP Settings Two configuration switches are provided on the front panel of the CRS-150 L-Band 1:1 Redundancy Switch (see Figure 5-2). These ‘Switch Mode’ DIP switches control the conditions that initiate an automatic switchover.

  • Page 63: Appendix A. Cable Drawings

    A.1 Introduction This appendix contains drawings of cables used with the CRS-150 1:1 Redundancy Switch. These cables are broken into two categories: Control Interface Cables and IF / Utility / Data Interface Cables. Each section provides illustrations of the cables’ technical specifications;...

  • Page 64: Modem-To-Switch Auxiliary Serial Cable (1:1 Control), Usb Type Ausb Type B

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.2.1 Modem-to-Switch Auxiliary Serial Cable (1:1 Control), USB Type A USB Type B To CRS-150 To CDM-600 Aux Serial A/B P6 Aux Serial Aux Serial A/B (USB Type ‘A’) CDM-600 P6 (USB Type ‘B’) Cable...

  • Page 65: Modem-To-Switch (Crs-150 Crs-170A) Control/Data 'Y' Cable, Db-25M Db-25M, Db-9M (Cdm-600L [Cdm-9600L

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.2.2 Modem-to-Switch (CRS-150 CRS-170A) Control/Data ‘Y’ Cable, DB-25M DB-25M, DB-9M (CDM-600L [CDM-9600L]) Figure A-2. Data / Control ‘Y’ Cable (CEFD P/N CA/WR10456-4)

  • Page 66: If / Utility / Data Interface Cables

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM IF / Utility / Data Interface Cables App. A REF Ch. 4 Modem Switch CEFD CABLE P/N DESCRIPTION USED FOR (TYPE) PL/0946-1 IF Coax Cable, Type ‘BNC’ 50Ω, 4’ IF Interface CA/WR9564-4 Cable –...

  • Page 67: Modem-To-Switch/User If (70/140 Mhz) Coax Cable, Type 'Bnc' 50Ω

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.3.1 Modem-to-Switch/User IF (70/140 MHz) Coax Cable, Type ‘BNC’ 50Ω Figure A-3. Tx/Rx/User Data Type ‘BNC’ 50Ω Coax Cable (CEFD P/N PL/0946-1)

  • Page 68: Modem-To-Switch Data Cable, Db-15M Db-15M

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.3.2 Modem-to-Switch Data Cable, DB-15M DB-15M Figure A-4. IDR Alarms Interface Cable (CEFD P/N CA/WR9564-4)

  • Page 69: Modem-To-Switch Coax Cable, Type 'Bnc' 75Ω

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.3.3 Modem-to-Switch Coax Cable, Type ‘BNC’ 75Ω Figure A-5. External Reference Type ‘BNC’ 75Ω Coax Cable (CEFD P/N PL/0813-4)

  • Page 70: Modem-To-Switch Universal Control/Data Cable, Db-25M Db-25M

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.3.4 Modem-to-Switch Universal Control/Data Cable, DB-25M DB-25M Figure A-6. 1:1 Universal Control/Data Cable (CEFD P/N PL/6233)

  • Page 71: Modem-To-Switch Universal Control/Data Cable, Db-15M Db-15M

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.3.5 Modem-to-Switch Universal Control/Data Cable, DB-15M DB-15M Figure A-7. 1:1 Universal Control/Data Cable (CEFD P/N CA/WR9563-4)

  • Page 72: Modem-To-Switch Data Cable, Db-25M Db-25M

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.3.6 Modem-to-Switch Data Cable, DB-25M DB-25M Figure A-8. Overhead Data Cable (CEFD P/N CA/WR9040-4) A-10...

  • Page 73: Modem-To-Switch Data Cable, Db-9M Db-9M

    CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM A.3.7 Modem-to-Switch Data Cable, DB-9M DB-9M Figure A-9. Audio Data Interface Cable (CEFD P/N CA/WR9378-4) A-11...
  • Page 74 CRS-150 1:1 Redundancy Switch Revision 2 Cable Drawings MN/CRS150.IOM Notes: A-12...
  • Page 75 METRIC CONVERSIONS Units of Length Unit Centimeter Inch Foot Yard Mile Meter Kilometer Millimeter 1 centimeter — 0.3937 0.03281 0.01094 6.214 x 10 0.01 — — 1 inch 2.540 — 0.08333 0.2778 0.254 — 25.4 1.578 x 10 1 foot 30.480 12.0 —...
  • Page 76 2114 85281 WEST TH STREET TEMPE ARIZONA 480 • 333 • 2200 PHONE 480 • 333 • 2161...

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