Comtech EF Data CRS-311 User Manual
Page 6
CRS-311 1:1 Redundancy Switch
Revision 7
Table of Contents
MN/CRS311.IOM
iv
1.2
CRS‐311 Switch/Modem Compatibility ................................................................................ 1–5
1.3
CRS‐311 Physical Features ................................................................................................... 1–6
1.3.1
Dimensional Envelopes ............................................................................................................ 1–6
1.3.2
Front Panel .............................................................................................................................. 1–7
1.3.3
Rear Panel ................................................................................................................................ 1–7
1.3.3.1
CRS‐311 System Controller and Power Supply Modules ................................................ 1–8
1.3.3.2
CRS‐351 Overhead Switch Module ................................................................................. 1–8
1.3.3.3
CRS‐281x IF Switch Modules ........................................................................................... 1–9
1.3.3.3.1 CRS‐281x IF Switch Modules for the CDM‐Qx/QxL .................................................... 1–9
1.3.3.3.2 CRS‐281x IF Switch Modules for the SLM‐5650/5650A ............................................. 1–9
1.3.3.4
CDM‐Qx/QxL, SLM‐5650/5650A Modem Interface Modules ....................................... 1–10
1.3.3.4.1 RMI Modules ............................................................................................................ 1–13
1.3.3.4.2 TMI Modules ............................................................................................................ 1–14
1.4
Summary of Specifications ................................................................................................. 1–15
1.4.1
CRS‐311 Specifications .......................................................................................................... 1–15
1.4.2
CRS‐281x IF Switch Module Specifications ............................................................................ 1–17
CHAPTER 2.
INSTALLATION ............................................................................................ 2–1
2.1
Unpacking and Inspecting the Shipment .............................................................................. 2–1
2.2
Installing into a Rack Enclosure ............................................................................................ 2–2
2.2.1
Installing the Optional Rear‐Mounting Support Brackets Kit .................................................. 2–4
2.2.2
Installing the Modem Optional Side‐Mounting Bearingless Rack Slide Set ............................ 2–6
CHAPTER 3.
CABLES AND CONNECTIONS ................................................................... 3–1
3.1
Overview ............................................................................................................................. 3–1
3.2
CDM‐Qx/QxL Modem Connections ...................................................................................... 3–3
3.2.1
CDM‐Qx/QxL Cable Connection Considerations ..................................................................... 3–3
3.2.2
RS‐485 Connections – CRS‐311 to Modems ............................................................................ 3–4
3.2.3
Control ‘Y’ Cable Connections – CRS‐311 to Modems ............................................................ 3–4
3.2.4
Data Traffic Connections – CRS‐311 to Modems ..................................................................... 3–5
3.2.4.1
EIA‐530 V.35/EIA‐232 Data Traffic Connections ............................................................. 3–5
3.2.4.2
Balanced G.703 Data Traffic Connections ...................................................................... 3–5
3.2.4.3
Unbalanced G.703 Data Traffic Connections .................................................................. 3–5
3.2.4.4
HSSI Data Traffic Connections......................................................................................... 3–5
3.2.4.5
Quad E1 Data Traffic Connections .................................................................................. 3–6
3.2.5
User Data Connections – CRS‐311 to User .............................................................................. 3–6
3.2.6
IF Connections – User to CRS‐281x Module to Modems ...................................................... 3–13
3.3
SLM‐5650/5650A Modem Connections .............................................................................. 3–17
3.3.1
SLM‐5650/5650A Cable Connection Considerations ............................................................ 3–17
3.3.2
System Control Cable Connections – CRS‐311 to Modems ................................................... 3–18
3.3.3
Serial Data Traffic Cable Connections – CRS‐311 to Modems ............................................... 3–18