Connecting A Cbr Dsx Or Cbr E1 Port Module - 3Com 3C63100-AC-C - PathBuilder S600 Bridge/router Reference Manual

Connecting a CBR DSX
or CBR E1 Port Module
Channel
Connect a CBR DSX or CBR E1 module using the RJ48 DSX interface for T1 traffic.
Table 8 describes the CBR DSXE1 connector pinouts.
Table 8 CBR DSX/E1 Connector Pinouts
PIN 1 RX (ring)
PIN 2 RX tip
PIN 3 NC
PIN 4 TX ring
PIN 5 TX tip
PIN 6 NC
PIN 7 NC
PIN 8 NC
If you are using a G703 coax physical connection to connect the CBR E1 line to the
interface, you must use the E1 Balun Adapter (part number 3C63904) for proper
resistance.
The CBR DSX module supports LBOs (LIne Build Outs) to CSU of up to 655 feet.
You must configure the LBO via the local terminal or NMS. See "Configuring the
CBR DSX (or E1) Modules" in Chapter 5, for details. You can typically make
connections locally to DTE equipment without DSU/CSUs, as long as the
equipment supports a direct T1 interface and can recover T1 signal. See Figure 16.
Figure 16 CBR DSX/E1 Module Connections
PBX
CSU
CBR DSX
or
Bank E1 CBR
You can make connections from the CBR E1 module locally to DTE equipment as
long as the equipment supports a direct E1 interface and can recover an E1 signal.
Once you have connected the CBR DSX or CBR E1 module, verify the front panel
indicator sequence illustrated in Figure 17.
Step 4: Connect I/O Cabling and Wiring
LBO
655 Ft.
DS1 Structured for DS0
Drop and Insert or
Unstructured for DS1
Tunneling
41