Mocomtech operation manual Control Cable Connections CRS-300 to Modems

NETWORK CONFIGURATIONS

Chapter 3. ETHERNET

CRS-300 1:10 Redundancy Switch	Revision 16
Cables and Connections	MN/CRS300.IOM

4.8.3Control Cable Connections – CRS-300 to Modems

The Control Cable CA/WR12361-1 provides the serial communication path between the Switch and the modems and controls the modem’s external Tx IF-mute control line, and is therefore always required.

Refer to Figure 4-28and Figure 4-29to connect and secure the CA/WR12361-1 cables between each CDM-710 and the CRS-300 as follows:

•HD-15F connector labeled “J1” on the RMI or TMI(s), to

•DB-15M connector labeled “P1 Alarms” on the CDM-710.

4.8.4Serial Traffic Data Connections – CRS-300 to Modems

If ASI is the traffic data type, refer to Figure 4-28to connect and secure the pair of BNC PL/0813-8 cables between the CRS-300 and each CDM-710 as follows:

•BNC connectors labeled “J4 Tx” on the RMI or “J3 Tx”on the TMI(s) to BNC connectors labeled “Tx J4” on the CDM-710’s CDI-40 interface card, to

•BNC connectors labeled “J3 Rx” on the RMI or “J5 Rx”on the TMI(s) to BNC connectors labeled “Rx J2” on the CDM-710’s CDI-40 interface card.

If HSSI is the traffic data type, refer to Figure 4-29to connect and secure the HSSI Data Cable CA/WR9189-6 between the CRS-300 and each CDM-710 as follows:

•HSSI (HD-50F) connector labeled “J2” on the RMI or “J3” on the TMI(s), to

•HSSI (HD-50F) connector labeled “J1 HSSI” on the CDM-710’s CDI-60 interface card.

4.8.5Ethernet Traffic Data Connections - CRS-300 to Modems

To handle Ethernet traffic data, the User routes the Ethernet data through the CRS-300 Switch like G.703 or HSSI data. This method of processing data through the CRS-300 is referred to as wired-thru. For detailed information on this method, refer to

in this manual.

For the wired-thru connection, refer to Figure 4-29to connect and secure the Cat5 Data Cable PP/CAT5FF7FTGY (RJ-45 to RJ-45, 7’) between the CRS-300 and each CDM-710 as follows:

•RJ-45 connector labeled “J5” on the RMI or TMI(s), to

•RJ-45 connector labeled “J1” on the CDM-700 (CDI-70) interface card.

4.8.6User Data Connections – CRS-300 to User

The User’s traffic data (from an external router, multiplexing equipment or test data generator) should connect to the connectors on the TMI labeled “User Data Interface”. This interface replaces the direct connection to the Traffic Modem’s “Data Interface” connectors.

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 1.4.4 Modem Interface Cards for detailed information on the RMI and TMI cards available for use with the CDM-710 modems.

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