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CRS-300 1:10 Redundancy Switch
Cables and Connections
2. The Traffic CDM-700 must have the same interface cards in each slot as any of the other
Traffic CDM-700s have, or a blank panel installed.
3. OC3 Optical TMI is not currently available.
4. As of April 2007:
4.7.3
Control 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 4-22 and Figure 4-23 to connect and secure the CA/WR12361-1 cables
between the CRS-300 and each CDM-700 as follows:
•
HD-15F connector labeled "J1" on the RMI or TMI(s), to
•
DB-15M connector labeled "P1 Alarms" on the CDM-700.
4.7.4
Serial Traffic Data Connections – CRS-300 to Modems
If G.703 is the traffic data type , refer to Figure 4-22 , Figure 4-23 , Figure 4-25 , or Figure
4-27 to connect and secure the Traffic Data Cables CA/RF12278-1 and CA/RF12279-1 the CRS-
300 and each CDM-700 as follows:
First , connect and secure the CA/RF12279-1 cable between the Redundant CDM-700 and the
CRS-300:
•
DB-15M connector labeled "P1" on the RMI, to
•
BNC connectors (<4X> per installed CDI-10 card) on the Redundant CDM-700
(depending on the modem configuration, either <4X> or<8X> BNC connectors are used).
Next , connect and secure the CA/RF12278-1 cables between the CRS-300 and the Traffic
CDM-700(s):
•
DB-9M connector labeled "P1" on the TMI(s), to
•
BNC connectors (4X per installed CDI-10 card) on each Traffic CDM-700
(depending on the modem configuration, either <4X> or <8X> BNC connectors are used).
If HSSI is the traffic data type , refer to Figure 4-23 and Figure 4-26 to connect and secure the
HSSI Data Cable CA/WR9189-6 between the CRS-300 and each CDM-700 as follows:
•
HSSI (HD-50F) connector labeled "J2" on the RMI, or "J3" on the TMI(s), to
•
HSSI (HD-50F) connector labeled "HSSI" on each CDM-700.
If OC3 copper is the traffic data type , refer to Figure 4-24 to connect and secure the pair of
BNC PL/0813-8 cables between the CRS-300 and each CDM-700 as follows:
•
BNC connectors labeled "J4 Tx" on the RMI, or "J3 Tx"on the TMI(s), to BNC
connectors labeled "Tx" on the CDM-700's CDI-50 interface card, and
•
BNC connectors labeled "J3 Rx" on the RMI, or "J5 Rx"on the TMI(s), to BNC
connectors labeled "Rx" on the CDM-700's CDI-50 interface card.
•
CRS-336 TMI card replaces the CRS-335.
•
CRS-306 RMI card replaces the CRS-305.
4–51
Revision 16
MN/CRS300.IOM
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