Comtech EF Data CRS-311 - Manual (Page 91)

4–1
Chapter 4. MODEM, RMI/TMI, AND
SWITCH CONFIGURATION
4.1 Overview
In order to avoid damage to the modems and the CRS‐311 1:1 Redundancy Switch, it is
important that you follow this sequence of configuration:
• First,
connect cables between the (powered OFF) modems and Switch as
outlined in Chapter 3. CABLES AND CONNECTIONS.
• Second, configure the modems for 1:1 redundant operation as outlined in this
chapter in Sect. 4.2 Modem Configuration.
• Third, when using SLM‐5650/5650A modems for 1:1 redundant operation: If
needed, configure the Switch RMI/TMI modules as outlined in this chapter in
Sect. 4.3 RMI Jumper Configuration Reference (CRS‐505) and Sect. 4.4 TMI
Jumper Configuration Reference (CRS‐515).
• Fourth, once you properly configure the modems and Switch RMI/TMI modules
for 1:1 redundant operation, you should then set the CRS‐311 for proper
operation via the front panel, as outlined in this chapter in Sect. 4.5. Switch
Configuration.