Comtech EF Data CRS-500, Инструкция по установке и эксплуатации

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CRS-500 1:N Redundancy System
Revision 4
Cables and Connections 5–16 MN-CRS-500
5.3.1.5 CDM-625/625A IF Cable Connections
See Section 5.4 for information and examples for the establishment of IF cabling for single and
multiple transponder configurations, with or without the use of the CRS-500’s CRS-280/280L ISU.
5.3.1.6 CRS-500 DSU

CDM-625/625A User Data Interface
Connections
Because the Redundant Modem’s function is to replace a faulted Traffic
Modem, the RMI does not have a User Data Interface.
Connect the traffic data from an external router, switch, or test data generator to the TMI
connectors labeled “User Data Interface.” This interface replaces the direct connection to the
Traffic CDM-625/625A’s “Data Interface” connectors.
5.3.1.7 CDM-625/625A Carrier-in-Carrier® (CnC) Data Connections
The CDM-625/625A’s DoubleTalk TM Carrier-in-Carrier ® (CnC) option uses a patented signal
processing algorithm. CnC uses adaptive cancellation to allow both the forward and reverse
carriers of a full duplex link to share the same segment of transponder bandwidth.
See Figure 5-7. For any Traffic Modem using CnC, connect and secure the CA-0000275 PMSI
Multi-drop CnC
® Plus Cable ([11X] DB-9M, 8.25’) between the Redundant Modem and any CnC-
enabled Traffic Modem(s) :
1. DB-9F connector labeled “PMSI” on the Redundant Modem, to
2. DB-9F connector labeled “PMSI” on each CnC-enabled Traffic Modem.
The CA-0000275 cable bypasses the CRS-500 1:N Redundancy System.