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CRS-300 1:10 Redundancy Switch Revision 16
Cables and Connections MN/CRS300.IOM
4–18
4.4.2 User Data Connections – CRS-300 to User
The User’s traffic data from multiplexing equipment or a test data generator should connect to the
connectors labeled “User Data Interface” on the TMI(s). This interface replaces the direct
connection to the Traffic Modem’s “Data Interface” connectors.
I
MPORTANT
1. Because the Redundant Modem’s function is to replace a faulted Traffic
Modem, the RMI does not have a User Data Interface.
2. Ensure that the correct operation for Balanced or Unbalanced G.703
data is configured on the modem.
For T1/E1 operation, the optional CN-0000268 T1/E1 Adapter (illustrated in Figure A-32 in
Appendix A. CABLE DRAWINGS) may be purchased from Comtech EF Data to adapt the
Balanced G.703 DB-15F connector on the User data side of the TMI to a RJ-48 female connection.
4.4.3 ESC Data Connections – CRS-350 to Modems
Refer to Figure 4-8 to connect and secure the cables between the CRS-350 and each CDM-600/600L
modem as follows:
• Connect and secure the CA/WR0066 cable:
o DB-25F connector on the CRS-350, to
o DB-25M connectors labeled “P3A Overhead” on the CDM-600/600L.
• Connect and secure the CA/WR9038-6 cable:
o DB-15M connector on the CRS-350, to
o DB-15F connectors labeled “P5A IDR Alarms” on the CDM-600/600L.
• Connect and secure the CA/WR9932-1 cable:
o DB-9M connector on the CRS-350, to
o DB-9F connectors labeled “P4A Audio” on the CDM-600/600L.
4.4.4 User ESC Data Connections – CRS-350 to User
The User’s equipment should be connected to the correct corresponding plug-in card on the front
panel of the CRS-350. This replaces the direct connection to the Traffic Modem’s “IDR”, “Audio”
and “Overhead” ports. Refer to
Figure 1-26 in Chapter 1.5 CRS-350 ESC Switch Description for
detailed information on this interface.
Because the Redundant Modem’s function is to replace a faulted Traffic Modem, the RMI does
not have a User Data Interface.
Refer to
Chapter 1.4.3 Modem Interface Cards for detailed information on the RMI and TMI
cards available for use with the CDM-600/600L modems.