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 5–9 MN-CRS-500
Figure 5-3 shows the 10/100 Ethernet ports (labeled “1” through “4”) on the CDM-625/625A rear
panel.
1) When using the CRS-316 TMI, a PP/CAT5FF7FTGY cable (CAT5 RJ-45 to RJ-
45, 7’) is required for Ethernet management between each modem and the
CRS-512 Ethernet M&C Interface installed in the CSU rear panel.
2) Use Port 1 only for the CRS-500 Ethernet System Communication connection
between the CRS-500 and the CDM-625/625A modems.
3) Avoid Ethernet Networking loops. When CDM-625s are operating in IP Packet
Processor Router or Managed Switch Mode, use only a single port to convey
traffic data for each modem.
Figure 5-3. CDM-625/625A 10/100 Ethernet Ports
Figure 5-3 Notes:
1) Use Port 1 for CRS-500-to-CDM-625/625A Ethernet System Communications.
2) Use any single port (Port 2, 3, or 4) for CDM-625/625A Ethernet traffic data connection.
5.3.1.2 CRS-500

CDM-625/625A Control Cable Connections
For 1:N connections between the CRS-500 CSU to CDM-625/625A Modems:
The CA/WR0066 Control Cable (DB-25M to DB-25F, 6’) or CA-0000069 Control Cable (HD-15M
to DB-9M, 6’) provide the modem’s fault status information to the CRS-500 as well as the control
path to the modem’s external Tx IF-mute (for the offline modem). Therefore, it is always required.
See Figure 5-4 . Do these steps:
1. For the Redundant Modem, connect the CA/WR0066 Control Cable between the
Redundant Modem and its corresponding RMI:
a. DB-25F connector labeled “Data Interface” on the modem, to
b. DB-25M connector labeled “P1” on the RMI.
2. For each Traffic Modem, connect a CA-0000069 Control Cable between each TMI and its
corresponding Traffic Modem:
a. HD-15F connector labeled “Faults” on the TMI, to
b. DB-9F connector labeled “1:1 Control” on the modem.