Comtech EF Data CRS-500 - Manual (Page 84)

CRS-500 1:N Redundancy System Revision 2
Cables and Connections MN-CRS500
4–28
4.3.2.4.2 Unbalanced G.703 Traffic Data Cable Connections
1. G.703 Unbalanced traffic is possible only when the CDM-750 is equipped with
the optional G.703 Plug-In Interface Cards (PIIC). This traffic data type requires
use of the CRS-345 TMI.
2. The Redundant Modem  DSU RMI and DSU TMI  Traffic Modem CA-0000069
control cable connections should have already been made, as outlined in Sect.
4.3.2.2.
3. The Redundant Modem  CSU CRS-512 and DSU TMI  Traffic Modem
PP/CAT5FF7FTGY Ethernet Comm cable connections should have already been
made, as outlined in Sect. 4.3.2.3.2.
Referring to Figure 4-11:
• First, for the Redundant Modem, connect the CA-0000750 Cable (4X BNC to DB-9F, 6’)
between the Redundant Modem G.703 PIIC and the CRS-505 RMI as follows:
o
First, connect cable BNC connector ‘1’ to the PIIC “RX-OUT” port, and cable BNC
Connector ‘2’ to the PIIC “TX-IN” port; then, connect to
o
CRS-505 RMI DB-9M connector labeled “P1 | G.703/ASI”.
• Then, for each Traffic modem, connect the CA-0000703 Cable (4X BNC to DB-9F, 6’)
between each CRS-345 TMI and its respective Traffic Modem PIIC as follows:
o
For single module connections (as shown in Figure 4-11 for TMs 2 and 4):
 CRS-516 TMI DB-9M port labeled “P1 | BNC Adapter” to
 (Slot 1 PIIC) Cable BNC Connector ‘1’ to the PIIC “RX-OUT” port, and cable BNC
Connector ‘2’ to the PIIC “TX-IN” port.
o
For dual module connections (as shown in Figure 4-11 for TM 6):
 CRS-516 TMI DB-9M port labeled “P1 | BNC Adapter” to
 (Slot 1 PIIC) cable BNC Connector ‘1’ to the PIIC “RX-OUT” port, and cable BNC
Connector ‘2’ to the PIIC “TX-IN” port, and
 (Slot 2 PIIC) cable BNC Connector ‘3’ to the PIIC “RX-OUT” port, and cable BNC
Connector ‘4’ to the PIIC “TX-IN” port.