Cisco MGX 8260 Connecting Manual page 2

Connecting the BITS Cable
Table 5-1
Cisco Part Number
CAB-5698-6
CAB-T3E3-PL-AD
BNCM-BNCM-25
CAB-T3E3-PL-Y
1. Used for BSC and DMC redundancy.
Connecting the BITS Cable
A wiring diagram for a BITS cable is provided in
connect the BITS cable, follow these steps:
If your system uses a Building Integrated Timing Source (BITS) timing source (Stratum 3 clock),
Step 1
connect a BITS cable to the RJ-45 connector on the SCC back card in slot 9. (See
Figure 5-1
Cisco MGX 8260 Hardware Installation Guide
5-2
DS3 Adapter and Extension Cables
Description
T3/E3 SMB Female to SMB Female, 6 feet (75 ohm)
T3/E3 SMB Female to BNC Female, 6 feet (75 ohm)
T3/E3 BNC Male to BNC Male, 25 feet (75 ohm)
T3/E3 SMB Female to 'Y' BNC Female, 1 Ft. Redundancy Cable
Connecting the BITS Cable
TX TX TX TX TX
1 1 1 1 1 1
RX RX RX RX RX
TX TX TX TX TX
2 2 2 2 2 2
RX RX RX RX RX
TX TX TX TX TX
3 3 3 3 3 3
RX RX RX RX RX
TX TX TX TX TX
4 4 4 4 4 4
RX RX RX RX RX
TX TX TX TX TX
5 5 5 5 5 5
RX RX RX RX RX
TX TX TX TX TX
6 6 6 6 6 6
RX RX RX RX RX
Appendix A, "Cable and Connector Reference."
TX TX TX
1 1
RX RX RX
TX TX TX
2 2
RX RX RX
TX TX TX
3 3
RX RX
RX
TX TX TX
4 4
RX RX RX
TX TX TX
5 5
RX RX RX
TX TX TX
6 6
RX RX RX
Chapter 5 Connecting the Cables
1
1
To
Figure 5-1.)
78-10966-02