4 data traffic connections – crs-311 to modems, 1 eia-530 v.35/eia-232 data traffic connections, 2 balanced g.703 data traffic connections – Comtech EF Data CRS-311 User Manual
Page 53: 3 unbalanced g.703 data traffic connections, 4 hssi data traffic connections
CRS-311 1:1 Redundancy Switch
Revision 7
Cables and Connections
MN/CRS311.IOM
3–5
3.2.4
Data Traffic Connections – CRS-311 to Modems
3.2.4.1 EIA-530 V.35/EIA-232 Data Traffic Connections
Referring to Figure 3‐2, connect and secure the CA/WR0066‐4 25‐pin Control and Data Cable
between the CRS‐311 and each CDM‐Qx/QxL as follows:
•
From the DB‐25M connector labeled “P2” on the RMI or “P1” on the TMI, to
•
The DB‐25F connector labeled “EIA‐530” on the demodulator.
3.2.4.2 Balanced G.703 Data Traffic Connections
Referring to Figure 3‐3, connect and secure the CA/WR9038‐4 15‐pin Data Cable between the
CRS‐311 and each CDM‐Qx/QxL as follows:
•
From the DB‐15M connector labeled “P1” on the RMI or TMI, to
•
The DB‐15F connector labeled “G.703” on the demodulator.
3.2.4.3 Unbalanced G.703 Data Traffic Connections
Referring to Figure 3‐4:
•
First, connect and secure the CA/WR0813‐4 BNC Tx Cable between the CRS‐311 and
each CDM‐Qx/QxL as follows:
o
From the BNC connector labeled “J4” on the RMI or “J3” on the TMI, to
o
The BNC connector labeled “Tx” on the demodulator.
•
Next, connect and secure the CA/WR0813‐4 BNC Rx Cable between the CRS‐311 and
each CDM‐Qx/QxL as follows:
o
From the BNC connector labeled “J3” on the RMI or “J5” on the TMI, to
o
The BNC connector labeled “Rx” on the demodulator.
3.2.4.4 HSSI Data Traffic Connections
Referring to Figure 3‐5, connect and secure the CA/WR9189‐4 HSSI Data Cable between the
CRS‐311 and each CDM‐Qx/QxL as follows:
•
From the HSSI connector labeled “J2” on the RMI or “J3” on the TMI, to
•
The HSSI connector labeled “HSSI” on the demodulator.