80
CRS-1
70/140 MHz IF 1:1 Redundancy Switch
Installation and Operation Manual
Accessory Product for use only with Comtech EF Data CDM-625A, CDM-625,
CDM-760, CDM-750, CDM-570A, CDM-570, CDM-710G, CDM-710, and
CDM-700 Modems (Modem Firmware and Hardware Requirements Apply)
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/CRS180.IOM / CD-CRS180 Revision 11
CRS-180
70/140 MHz IF 1:1 Redundancy Switch
Installation and Operation Manual
Accessory Product for use only with Comtech EF Data CDM-625A, CDM-625,
CDM-760, CDM-750, CDM-570A, CDM-570, CDM-710G, CDM-710, and
CDM-700 Modems (Modem Firmware and Hardware Requirements Apply)
Part Number MN/CRS180.IOM / CD-CRS180
Revision 11
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, 480.333.2200, FAX: 480.333.2161
Copyright © Comtech EF Data, 2014. All rights reserved. Printed in the USA.
BLANK PAGE
TABLE OF CONTENTS
TABLE OF CONTENTS ................................................................................................. III
TABLES ........................................................................................................................ VII
FIGURES ...................................................................................................................... VII
PREFACE ...................................................................................................................... XI
About this Manual ............................................................................................................................ xi
Related Documents ................................................................................................................................. xi
Conventions and References ............................................................................................................ xii
Patents and Trademarks ......................................................................................................................... xii
Warnings, Cautions and Notes ............................................................................................................... xii
Examples of Multi-Hazard Notices ......................................................................................................... xii
Recommended Standard Designations .................................................................................................. xii
Safety and Compliance .................................................................................................................... xiii
Electrical Safety and Compliance........................................................................................................... xiii
Electrical Installation ............................................................................................................................. xiii
Operating Environment ......................................................................................................................... xiii
Equipment Connection .......................................................................................................................... xiv
European Union Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive
(1999/5/EC) and EN 301 489-1 .............................................................................................................. xiv
European Union Electromagnetic Compatibility (EMC) Directive (2004/108/EC) ............................ xiv
European Union Low Voltage Directive (LVD) (2006/95/EC) ............................................................. xv
European Union RoHS Directive (2002/95/EC) .................................................................................. xv
European Union Telecommunications Terminal Equipment Directive (91/263/EEC) ....................... xv
CE Mark .............................................................................................................................................. xv
Product Support ............................................................................................................................... xv
Comtech EF Data Headquarters ....................................................................................................... xvi
Warranty Policy .............................................................................................................................. xvi
Limitations of Warranty ......................................................................................................................... xvi
Exclusive Remedies ................................................................................................................................ xvii
CHAPTER 1. INTRODUCTION ................................................................................ 1–1
1.1 Overview ........................................................................................................................... 1–1
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1.2 Physical Features ............................................................................................................... 1–2
1.2.1 Modem Side Features .............................................................................................................. 1–2
1.2.2 Top and Antenna Side Features .............................................................................................. 1–3
1.3 Functional Description ....................................................................................................... 1–4
1.3.1 Switch Operation with CDM-625/A, -760, -750, -570/A, -710G, -710, or -700 Modems ........ 1–4
1.3.1.1 1:1 IP Redundancy Data Switching ................................................................................. 1–5
1.3.1.1.1 CDM-625/A, -760, -750, -710G, -710, -700 Managed Switch Mode ........................ 1–5
1.3.1.1.2 CDM-625/A (with Optional IP Packet Processor) – Router Mode ............................ 1–8
1.3.1.1.3 CDM-570/A (with optional IP Module or Packet Processor) Managed Switch or
Router Modes ............................................................................................................................ 1–10
1.4 Summary of Specifications ............................................................................................... 1–14
CHAPTER 2. INSTALLATION ................................................................................. 2–1
2.1 Unpack and Inspect the Shipment ...................................................................................... 2–1
2.2 Mount the Switch .............................................................................................................. 2–2
CHAPTER 3. SWITCH CONNECTORS AND PINOUTS ......................................... 3–1
3.1 Cabling Connection Types .................................................................................................. 3–1
3.1.1 Coaxial Cable Connections....................................................................................................... 3–1
3.1.1.1 Type ‘BNC’ ....................................................................................................................... 3–2
3.1.1.2 Type ‘TNC’ ....................................................................................................................... 3–2
3.1.1.3 Type ‘N’ ........................................................................................................................... 3–2
3.1.1.4 Type ‘F’ ............................................................................................................................ 3–2
3.1.1.5 Type ‘SMA’ (Subminiature Version ‘A’) ........................................................................... 3–3
3.1.2 D-Subminiature Cable Connections ......................................................................................... 3–3
3.1.3 RJ-45, RJ-48 Cable Connections ............................................................................................... 3–3
3.2 CRS-180 User Connectors ................................................................................................... 3–4
3.2.1 Modem Side Connectors ......................................................................................................... 3–4
3.2.1.1 IF Connectors (50Ω BNC) ................................................................................................ 3–4
3.2.1.2 ‘J3 | Control A’ Connector (Top) – Modem ‘A’ (DB-9F) .................................................. 3–5
3.2.1.3 ‘J4 | Control B’ Connector (Bottom) – Modem ‘B’ (DB-9F) ............................................ 3–5
3.2.2 Antenna Side Connectors ........................................................................................................ 3–6
3.2.2.1 IF Connectors (50Ω BNC) ................................................................................................ 3–6
3.2.2.2 Ground Stud .................................................................................................................... 3–6
CHAPTER 4. MODEM AND SWITCH CONFIGURATION ...................................... 4–1
4.1 Overview ........................................................................................................................... 4–1
4.2 Configure the CDM-625/As for 1:1 Redundancy .................................................................. 4–3
4.2.1 CDM-625/A Remote User M&C Ethernet Interface ................................................................ 4–4
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4.2.1.1 For CDM-625/As Without the Optional IP Packet Processor.......................................... 4–4
4.2.2 Configure Carrier-in-Carrier® for Redundancy Operation ....................................................... 4–5
4.3 CDM-760 or CDM-750 Operation in 1:1 Redundancy ........................................................... 4–7
4.4 Configure the CDM-570/As for 1:1 Redundancy .................................................................. 4–9
4.4.1 CDM-570/A Non-IP Redundancy Configuration .................................................................... 4–11
4.4.2 IP Redundancy Configuration ................................................................................................ 4–12
4.5 Configure the CDM-710G, -710, or -700s for 1:1 Redundancy ............................................ 4–15
4.5.1 Non-IP Redundancy Configuration ........................................................................................ 4–16
4.5.2 IP Redundancy Configuration ................................................................................................ 4–16
4.6 Configure Switch DIP Settings ........................................................................................... 4–17
CHAPTER 5. CABLES AND CONNECTIONS ........................................................ 5–1
5.1 Overview ........................................................................................................................... 5–1
5.2 Cabling to the CDM-625 or CDM-625A ................................................................................ 5–3
5.2.1 CRS-180CDM-625/A Control and IF Interface Connections Using Cabling Kit KT-0000159 5–3
5.2.1.1 Switch-to-Modem Control Interface Connection ........................................................... 5–4
5.2.1.2 Switch-to-Modem IF Interface Connection .................................................................... 5–5
5.2.2 Modem-to-User Data Interface Connections and Examples ................................................... 5–6
5.2.2.1 Modem-to-User Non-IP Data Interface Connections and Examples .............................. 5–6
5.2.2.1.1 EIA-422/232 Interface Example ................................................................................ 5–7
5.2.2.1.2 HSSI Interface Example ............................................................................................. 5–7
5.2.2.1.3 Quad E1 Interface Example ...................................................................................... 5–8
5.2.2.1.4 G.703 Balanced Interface Example ........................................................................... 5–9
5.2.2.1.5 G.703 Unbalanced Interface Example ...................................................................... 5–9
5.2.2.1.6 ASI Interface Example ............................................................................................. 5–10
5.2.2.1.7 Overhead Interface Example .................................................................................. 5–10
5.2.2.1.8 Engineering Service Channel (ESC) Interface Example ........................................... 5–11
5.2.2.2 Mo
dem-to-User IP (10/100 Ethernet) Interface Examples........................................... 5–12
5.2.2.2.1 Data Interface Connections Using IP Sub-Mux ....................................................... 5–12
5.2.2.2.2 Managed Switch Mode (with/without Optional IP Packet Processor) ................... 5–12
5.2.2.2.3 Router Mode (Requires Optional IP Packet Processor) .......................................... 5–15
5.2.2.3 PMSI Interface Example ................................................................................................ 5–17
5.3 Cabling to the CDM-760 or CDM-750 ................................................................................ 5–18
5.3.1 CRS-180CDM-760/-750 Control and IF Interface Connections Using Cabling Kit KT-0000177 .
............................................................................................................................................... 5–18
5.3.2 Modem-to-User Data Interface Connections and Examples ................................................. 5–20
5.3.2.1 Gigabit Ethernet Data Interface Example ..................................................................... 5–20
5.3.2.2 Optional Optical Gigabit Ethernet Interface Example .................................................. 5–21
5.3.2.3 Non-IP Data Interface Kit and Connection Examples ................................................... 5–22
5.3.2.3.1 PIIC KT/12542 Single G.703 E3/T3 75Ω Interface Kit .............................................. 5–23
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5.4 Cabling to the CDM-570 or CDM-570A .............................................................................. 5–25
5.4.1 CRS-180CDM-570/A Control and IF Interface Connections Using Cabling Kit KT/11599 .. 5–25
5.4.1.1 Switch-to-Modem Control Interface Connection ......................................................... 5–26
5.4.1.2 Switch-to-Modem IF Interface Connection .................................................................. 5–27
5.4.2 Modem-to-User Data Interface Connections and Examples ................................................. 5–28
5.4.2.1.1 EIA-422/232 Interface Example .............................................................................. 5–29
5.4.2.1.2 G.703 Balanced Interface Example ......................................................................... 5–29
5.4.2.1.3 G.703 Unbalanced Interface Example .................................................................... 5–30
5.4.2.2 Modem-to-User IP (10/100 Ethernet) Interface Example ............................................ 5–31
5.5 Cabling to the CDM-710G ................................................................................................. 5–33
5.5.1 CRS-180CDM-710G Control and IF Interface Connections Using Cabling Kit KT/12554 ... 5–33
5.5.2 Modem-to-User Data Interface Kit and Connection Examples ............................................. 5–35
5.5.2.1.1 Single G.703 E3/T3/STS-1 75Ω Data Interface (CDI-10-1) Kit KT/12583 ................ 5–36
5.5.2.1.2 HSSI Data Interface (CDI-60) Kit KT/12586 ............................................................. 5–37
5.5.2.2 Gigabit Ethernet Interface (CDI-70) Example ............................................................... 5–38
5.6 Cabling to the CDM-710 ................................................................................................... 5–39
5.6.1 CRS-180 CDM-710 Control and IF Interface Connections Using Cabling Kit KT/12551 .... 5–39
5.6.2 Modem-to-User Data Interface Kit and Connection Examples ............................................. 5–41
5.6.2.1.1 ASI 75Ω Data Interface (CDI-40) Kit KT/12579 ....................................................... 5–42
5.6.2.1.2 HSSI Data Interface (CDI-60) Interface Kit KT/12578 .............................................. 5–43
5.6.2.2 Gigabit Ethernet Data Interface (CDI-70) Example ....................................................... 5–44
5.7 Cabling to the CDM-700 ................................................................................................... 5–45
5.7.2 Modem-to-User Data Interface Kit and Connection Examples ............................................. 5–47
5.7.2.1 Modem-to-User Non-IP Data Interface Kit and Connection ......................................... 5–47
5.7.2.1.1 Du
al G.703 E3/T3/STS-1 75Ω Data Interface (CDI-10) Kit KT/12542 and HSSI Data
Interface (CDI-60) Kit KT/12578 ................................................................................................. 5–48
5.7.2.1.2 155MB Copper Data Interface (CDI-50) Kit KT/12579 ............................................ 5–49
5.7.2.1.3 OC-3 Data Interface (CDI-50) Kits KT/12580 (Single-Mode) or KT/12581 (Multi-Mode)
................................................................................................................................ 5–50
5.7.2.2 Gigabit Ethernet Data Interface (CDI-70) Example ....................................................... 5–51
APPENDIX A. CABLE DRAWINGS ......................................................................... A-1
A.1 Overview ........................................................................................................................... A-1
A.2 Control Interface Cables ..................................................................................................... A-2
A.2.1 Switch-to-Modem, Universal Control Cable, DB-9MDB-9M ........................................... A-3
A.2.2 Switch-to-Modem, Adapter Control Cable, RoHS, DB-9MDB-15F .................................. A-4
A.2.3 Switch-to-Modem, Optional ‘Y’ Splitter Adapter Control Cable, (2X) DB-9MDB-15F ..... A-5
A.2.4 Switch-to-Modem, Optional Control Cable, Non-muting, DB-9MDB-15F ...................... A-6
A.3 IF / Data Interface Cables ................................................................................................... A-7
A.3.1 Switch-to-Modem / Modem-to-User, Coaxial Cable, RoHS, BNC 50Ω ................................ A-9
A.3.2 Switch-to-Modem / Modem-to-User, Coaxial Cable, RoHS, BNC 75Ω .............................. A-10
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A.3.3 Modem-to-User, Splitter Cable, DB-25F(2X) DB-25M ................................................... A-11
A.3.4 Modem-to-User, CDM-625/A Data ‘Y’ Splitter Cable, DB-9F(2X) DB-9M ..................... A-12
A.3.5 Modem-to-User, Quad E1 ‘Y’ Splitter Adapter Cable, DB-9M(2X) DB-15F ................... A-13
A.3.6 Modem-to-User, Quad E1 ‘Y’ Splitter Adapter Cable, DB-9M(2X) RJ-48F ..................... A-14
A.3.7 Modem-to-User, Quad E1 ‘Y’ Splitter Adapter Cable Kit .................................................. A-15
A.3.8 Modem-to-User, Overhead User Data ‘Y’ Splitter Cable, HD-44F(2X) HD-44M ............ A-16
A.3.9 Modem-to-Modem, CDM-625/A Shielded Multi-drop CnC
........................................................................................................................................... A-17
A.3.10 Switch-to-Modem / Modem-to-User, RoHS Coax Cable, BNC 75Ω .................................. A-18
A.3.11 Modem-to-User, Optical Gigabit Ethernet Cable Assemblies, RoHS, Single-Mode OR Multi-
Mode, (2X) Type ‘LC’ (4X) Type ‘LC’ ............................................................................................... A-19
A.3.12 Modem-to-User, G.703 Balanced User Data ‘Y’ Splitter Cable, DB-15M(2X) DB-15M . A-20
A.3.13 Modem-to-User, HSSI User Data ‘Y’ Splitter Cable, HD-50F(2X) HD-50M .................... A-21
A.3.14 Modem-to-User, OC-3 Cable Assemblies, RoHS, Single-Mode OR Multi-Mode, Type
‘SC/UPC’ (2X) Type ‘SC/UPC’ ......................................................................................................... A-22
®
Plus Cable, DB-9MDB-9M ......
TABLES
Table 1-1. CRS-180 Compatibility Summary ............................................................................................. 1–2
Table 3-1. Modem Side Type ‘BNC’ Connectors ....................................................................................... 3–4
Table 3-2. ‘J3 | Control A’ Modem Connector Pinouts ............................................................................. 3–5
Table 3-3. ‘J4 | Control B’ Modem Connector Pinouts ............................................................................. 3–5
Table 3-4. J7 (Rx) and J8 (Tx) Type ‘BNC’ Connectors ............................................................................... 3–6
FIGURES
Figure 1-1. CRS-180 70/140 MHz IF 1:1 Redundancy Switch Module ...................................................... 1–1
Figure 1-2. CRS-180 – Modem Side Features ............................................................................................ 1–2
Figure 1-3. CRS-1
Figure 1-4. CDM-625/A, -760, -750, -710G, -710, -700 1:1 IP Redundancy Managed Switch Mode ........ 1–6
Figure 1-5. CDM-625/A, -760, -750, -710G, -710, -700 1:1 IP Redundancy Managed Switch Mode –
Switchover ........................................................................................................................................ 1–7
Figure 1-6. CDM-625/A 1:1 IP Redundancy Router Mode (‘A’ Online) ..................................................... 1–9
Figure 1-7. CDM-625/A 1:1 IP Redundancy Router Mode – Switchover (‘B’ Online) ............................. 1–10
Figure 1-8. CDM-570/A 1:1 IP Redundancy Router Mode – ‘A’ Online .................................................. 1–12
Figure 1-9. CDM-570/A 1:1 IP Redundancy Router Mode – Switchover (‘B’ Online) ............................. 1–13
Figure 2-1. Optional Switch Mounting Kit (CEFD P/N KT/11708) ............................................................. 2–2
Figure 3-1. Coaxial Connector Examples ................................................................................................... 3–1
Figure 3-2. D-Subminiature Connector Examples ..................................................................................... 3–3
Figure 3-3. CRS-180 – Modem Side Connectors ....................................................................................... 3–4
Figure 3-4. CRS-180 – Antenna Side Connectors and Ground Stud .......................................................... 3–6
Figure 4-1. CDM-570/A Configuration Interface Examples ...................................................................... 4–9
Figure 4-2. CDM-570/A CLI 1:1 Redundancy Configuration Screen ........................................................ 4–13
Figure 4-3. CRS-180 “Switch Conditions” DIP Switches .......................................................................... 4–17
Figure 5-1. CDM-625/A Switch-to-Modem Control Connections (CEFD Kit KT-0000159) ........................ 5–4
80 – Top and Antenna Side Features............................................................................. 1–3
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Figure 5-2. CDM-625/A Switch-to-Modem 70/140 MHz IF Connections (CEFD Kit KT-0000159) ............ 5–5
Figure 5-3. CDM-625/A Block Diagram – UserModemSwitchTraffic ............................................ 5–6
Figure 5-4. CDM-625/A EIA-422/232 1:1 Example ................................................................................... 5–7
Figure 5-5. CDM-625/A HSSI 1:1 Example ................................................................................................ 5–7
Figure 5-6. CDM-625/A Quad E1 1:1 Example .......................................................................................... 5–8
Figure 5-7. CDM-625/A G.703 Balanced 1:1 Example .............................................................................. 5–9
Figure 5-8. CDM-625/A G.703 Unbalanced 1:1 Example .......................................................................... 5–9
Figure 5-9. CDM-625/A ASI 1:1 Example ................................................................................................ 5–10
Figure 5-10. CDM-625/A Overhead 1:1 Example .................................................................................... 5–10
Figure 5-11. CDM-625/A ESC 1:1 Example .............................................................................................. 5–11
Figure 5-12. CDM-625/A Block Diagram – 10/100 Ethernet Interface Managed Switch Mode ............. 5–13
Figure 5-13. CDM-625/A 10/100 Ethernet 1:1 Example – Managed Switch Mode (with/without
Dedicated Management Port) ........................................................................................................ 5–14
Figure 5-14. CDM-625/A Block Diagram 10/100 Ethernet 1:1 Example – Router Mode ....................... 5–15
Figure 5-15. CDM-625/A 10/100 Ethernet Cabling 1:1 Example – Router Mode ................................... 5–16
Figure 5-16. CDM-625/A PMSI 1:1 Example ........................................................................................... 5–17
Figure 5-17. CDM-760 or CDM-750 Switch-to-Modem Control & IF Connections (CEFD KIT KT-0000177) ...
........................................................................................................................................................ 5–19
Figure 5-18. CDM-760 or CDM-750 Gigabit Ethernet 1:1 Example ........................................................ 5–20
Figure 5-19. CDM-760 or CDM-750 Optional Optical Gigabit Ethernet 1:1 Example ............................. 5–21
Figure 5-20. CDM-760 or CDM-750 Block Diagram – UserModemSwitchTraffic ........................ 5–22
Figure 5-21. CDM-760 or CDM-750 PIIC G.703 E3/T3 Interface Kit – KT/12542 .................................... 5–23
Figure 5-22. CDM-570/A Switch-to-Modem Control Connections (CEFD Kit KT/11599) ....................... 5–26
Figure 5-23. CDM-570/A Switch-to-Modem 70/140 MHz IF Connections (CEFD Kit KT/11599) ............ 5–27
Figure 5-24. CDM-5
70/A Block Diagram – UserModemSwitchTraffic ........................................ 5–28
Figure 5-25. CDM-570/A EIA-422/232 1:1 Example ............................................................................... 5–29
Figure 5-26. CDM-570/A G.703 Balanced 1:1 Example .......................................................................... 5–29
Figure 5-27. CDM-570/A G.703 Unbalanced 1:1 Example ...................................................................... 5–30
Figure 5-28. CDM-570/A 10/100 Ethernet 1:1 Example – Managed Switch Mode ................................ 5–31
Figure 5-29. CDM-710G Switch-to-Modem Control & IF Connections (CEFD Kit KT/12554) ................. 5–34
Figure 5-30. CDM-710G Block Diagram – UserModemSwitchTraffic .......................................... 5–35
Figure 5-31. CDM-710G Single G.703 E3/T3/STS-1 1:1 Example ............................................................ 5–36
Figure 5-32. CDM-710G HSSI 1:1 Example .............................................................................................. 5–37
Figure 5-33. CDM-710G CDI-70 Gigabit Ethernet (GigE) 1:1 Example .................................................... 5–38
Figure 5-34. CDM-710 Switch-to-Modem Control & IF Connections – KT/12554 .................................. 5–40
Figure 5-35. CDM-710 Block Diagram – UserModemSwitchTraffic ............................................ 5–41
Figure 5-36. CDM-710 CDI-40 ASI 1:1 Example ....................................................................................... 5–42
Figure 5-37. CDM-710 CDI-60 HSSI 1:1 Example ..................................................................................... 5–43
Figure 5-38. CDM-710 CDI-70 Gigabit Ethernet (GigE) 1:1 Example ...................................................... 5–44
Figure 5-39. CDM-700 Switch-to-Modem Control & IF Connections – KT/12554 .................................. 5–46
Figure 5-40. CDM-700 Block Diagram – UserModemSwitchTraffic ............................................ 5–47
Figure 5-41. CDM-700 CDI-10 G.703 E3/T3/STS-1, CDI-60 HSSI 1:1 Example ......................................... 5–48
Figure 5-42. CDM-700 CDI-50 155MB Copper 1:1 Example ................................................................... 5–49
Figure 5-43. CDM-700 CDI-50 OC-3 1:1 Example (Single-Mode shown) ................................................ 5–50
Figure 5-44. CDM-700 CDI-70 Gigabit Ethernet (GigE) 1:1 Example ...................................................... 5–51
Figure A-1. Universal Control Cable (CA/WR9378-4) ...............................................................................
A-3
Figure A-2. Adapter Control Cable (CA/WR12135-1) ................................................................................ A-4
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Figure A-3. Optional ‘Y’ Splitter Adapter Control Cable (CA/WR13011-4) ............................................... A-5
Figure A-4. Optional Control Cable (CA-0000187) .................................................................................... A-6
Figure A-5. Tx/Rx BNC 50Ω RoHS Coaxial Cable (PL/0946-1) .................................................................... A-9
Figure A-6. User Data BNC 75Ω RoHS Coaxial Cable (CA/BNC75OHM) .................................................. A-10
Figure A-7. 1:1 User Data Splitter Cable (CA/RB10461-1) ...................................................................... A-11
Figure A-8. 1:1 User Data ‘Y’ Splitter Cable (CA-0000071) ..................................................................... A-12
Figure A-9. 1:1 Quad E1 User Data ‘Y’ Splitter Adapter Cable (CA-0000163) ......................................... A-13
Figure A-10. Quad E1 User Data ‘Y’ Splitter Adapter Cable (CA-0000164) ............................................. A-14
Figure A-11. Quad E1 User Data ‘Y’ Splitter Adapter Cable Kit (KT-0000122) ........................................ A-15
Figure A-12. Overhead User Data ‘Y’ Splitter Cable (CA-0000070) ......................................................... A-16
Figure A-13. CDM-625/A Shielded Multi-drop CnC
®
Plus Modem-to-Modem Cable (CA-0000276) ...... A-17
Figure A-14. Tx/Rx BNC 75Ω RoHS Coax Cable (PL/0813-4) ................................................................... A-18
Figure A-15. Optical Gigabit Ethernet User Data Cable Assembly (See Table for CEFD Part No.) .......... A-19
Figure A-16. G.703 Balanced User Data ‘Y’ Splitter Cable (CA/WR10522-1) .......................................... A-20
Figure A-17. HSSI User Data ‘Y’ Splitter Cable (PP/SC3523) ................................................................... A-21
Figure A-18. OC-3 User Data Cable Assembly (See Table for CEFD Part No.) ......................................... A-22
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x
About this Manual
This manual provides installation and operation information for the Comtech EF Data CRS-180
70/140 MHz IF 1:1 Redundancy Switch. This document is intended for anyone who installs or
operates the CRS-180.
Related Documents
• Comtech EF Data CDM-625A Advanced Satellite Modem Installation and Operation Manual
(CEFD P/N MN-CDM625A)
• Comtech EF Data CDM-625 Advanced Satellite Modem Installation and Operation Manual
(CEFD P/N MN-CDM625)
• Comtech EF Data CDM-760 Advanced High-Speed Trunking Modem Installation and Operation
Manual (CEFD P/N MN-CDM760)
• Comtech EF Data CDM-750 Advanced High-Speed Trunking Modem Installation and Operation
Manual (CEFD P/N MN-CDM750)
• Comtech EF Data CDM-570A/CDM-570AL/CDMR-570AL Satellite Modem Installation and
Operation Manual (CEFD P/N MN-CDM570A)
• Comtech EF Data CDM-570/CDM-570L/CDMR-570L Satellite Modem Installation and Operation
Manual (CEFD P/N MN/CDM570L.IOM)
• Comtech EF Data CDM-710G/710GL High-Speed Satellite Modem Installation and Operation
Manual (CEFD P/N MN-CDM710G)
• Comtech EF Data CDM-710 Broadcast Satellite Modem Installation and Operation Manual
(CEFD P/N MN/CDM710.IOM)
• Comtech EF Data CDM-710 Broadcast Satellite Modem Installation and Operation Manual
(CEFD P/N MN/CDM710.IOM)
PREFACE
xi
CRS-180 70/140 MHz IF 1:1 Redundancy Switch MN/CRS180.IOM
Preface Revision 11
• Comtech EF Data CDM-700 High-Speed Satellite Modem Installation and Operation Manual
(CEFD P/N MN/CDM700.IOM)
Conventions and References
Patents and Trademarks
See all of Comtech EF Data's Patents and Patents Pending at http://patents.comtechefdata.com.
Comtech EF Data acknowledges that all trademarks are the property of the trademark owners.
Warnings, Cautions and Notes
A WARNING INFORMS YOU ABOUT A POSSIBLE HAZARD THAT MAY CAUSE DEATH
OR SERIOUS INJURY.
A CAUTION informs you about a possible hazard that MAY CAUSE INJURY or
PROPERTY DAMAGE.
A NOTE gives you important information about a task or the equipment.
A REFERENCE
directs you to additional information about a task or the equipment.
Examples of Multi-Hazard Notices
Recommended Standard Designations
The Electronic Industries Association (EIA) designations supersede the Recommended Standard
(RS) designations. References to the old designations may be shown when depicting actual text
(e.g., RS-232) displayed on Switch or the individual modem Web Server pages, serial remote
interfaces, Telnet Command Line Interfaces (CLIs), or unit rear panels. All other references in the
manual refer to EIA designations.
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