CRS-300 1:10 Redundancy Switch
MN/CRS300.IOM
Cables and Connections
Revision 19
4–33
4.4.4 Data Connections – CRS-300 to User
You must connect your traffic data from the external router, multiplexing equipment, or test
data generator to the connectors on the Switch TMI labeled “User Data Interface”. This interface
replaces the direct connection to the Traffic CDM-625/A’s “Data Interface” connectors.
For Quad E1 operation, the optional CA-0000163 and CA-0000164 Adapter Cables may be
purchased from Comtech EF Data to adapt the Balanced G.703 or Auxiliary G.703 9-pin Type ‘D’
female connectors to either a standard 15-pin Type ‘D’ or a RJ-48 female connection pair. See
Figure B-30 or Figure B-31 in Appendix B. CABLE DRAWINGS.
1)
Because the Redundant Modem’s function is to replace a faulted Traffic Modem,
the Switch RMI does not have a User Data Interface.
2)
Ensure that you correctly configure the modem operation for Balanced or
Unbalanced G.703 data traffic.
4.4.5 Data Connections – CRS-350 Engineering Service Channel (ESC)
Switch
4.4.5.1 ESC Data Connections – CRS-350 to Modems
See Figure 4-13 do these steps to connect and secure the Multi-purpose Cable CA-0000074 (2
places) between the rear panels of the CRS-350 and the CDM-625/A(s):
•
DB-25F Jxx “Overhead,” D-9M Paxx “Audio,” and DB-15M Pbxx “IDR Alarms” connectors on
the CRS-350 rear panel (where xx specifies the number 1 through 10 Traffic Modem, and 11
is reserved for the Redundant Modem), to
•
HD-44F “IDR Data/Alarms/Audio” and DB-9M “ESC” connectors on the Redundant and
Traffic CDM-625/As.
4.4.5.2 ESC Data Connections – CRS-350 to User
You must connect your equipment to the correct corresponding plug-in UDI (User Data
Interface) module on the front panel of the CRS-350. This replaces the direct connection to the
Traffic CDM-625/A’s “IDR”, “Audio” and “Overhead” ports.
4.4.6 Operation of the CDM-625/A in CDM-600/L Emulation Mode
With the exception of EIA-232 type traffic data handling, the CDM-600 Emulation Mode enables
the CDM-625/A to serve as an operationally transparent replacement unit for CDM-600/L Open
Network Satellite Modems.
Summary of Contents for CRS-300
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