CRS-300 1:10 Redundancy Switch MN/CRS300.IOM
Cables and Connections Revision 19
4–54
4.7.3 Control Y-Cable Connections – CRS-300 to Modems
All traffic data configurations require the Control Y-Cable CA/WR12069-1. Do these steps to
connect Switch RMI/TMI(s) and each CDM-Qx/QxL:
• HD-15F connector labeled “J1” on the Switch RMI or TMI(s), to
• DB-15M connectors labeled “Alarms” on each CDM-Qx/QxL modulator and demodulator:
o J1 of the Control Y-Cable goes to the modulator Alarm connector.
o J2 of the Control Y-Cable goes to the demodulator Alarm connector.
4.7.4 Traffic Data Connections – CRS-300 to Modems
Do these steps to connect and secure the cables between each CDM-Qx/QxL and the Switch:
If EIA-530 V.35/EIA-232 is the traffic data type, see Figure 4-21 and do these steps to connect
and secure the Control/Data Cable CA/WR0066:
• DB-25M connector labeled “P2” on the Switch RMI or “P1” on the Switch TMI(s), to
• DB-25F connector labeled “EIA-530” on the CDM-Qx/QxL demodulator.
If Balanced G.703 is the traffic data type, see Figure 4-22 and do these steps to connect and
secure the Data Cable CA/WR9038-6:
• DB-15M connector labeled “P1” on the Switch RMI or TMI(s), to
• DB-15F connector labeled “G.703” on the CDM-Qx/QxL demodulator.
If Unbalanced G.703 is the traffic data type, see Figure 4-23 and do these steps to first connect
and secure the 75Ω BNC Tx Cable CA/WR0813-8:
• BNC connector labeled “J4” on the Switch RMI or “J3” on the Switch TMI(s), to
• BNC connector labeled “Tx” on the demodulator.
Next, do these steps to connect and secure the BNC Rx Cable CA/WR0813-8:
• BNC connector labeled “J3” on the Switch RMI or “J5” on the Switch TMI(s), to
• BNC connector labeled “Rx” on the demodulator.
If HSSI is the traffic data type, see Figure 4-24 and do these steps to connect and secure the
HSSI Data Cable CA/WR9189-6:
• HSSI connector labeled “J2” on the Switch RMI or “J3” on the Switch TMI(s), to
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