Bri Connections - Cisco EF4116 Hardware Installation And Maintenance Manual

BRI Connections

The BRI network processor module (see Figure 2-31 and Figure 2-30) supports 8 Basic Rate
Interface (BRI) ports. Each BRI port is an RJ-45 8-pin connector. Use an appropriate cable to
connect the BRI module directly to an Integrated Services Digital Network (ISDN) through an ISDN
channel service unit/digital service unit (CSU/DSU) called the NT1. The common carrier will
provide the NT1 connection, except in North America, where the NT1 is customer owned.
Figure 2-30
Figure 2-31
Warning
detach the end away from the router first to avoid possible electric shock. Network hazardous
voltages are also accessible on the BRI module in the area of the BRI port (RJ-45 connector), even
when power is turned OFF. (See Figure 2-30 and Figure 2-31.)
4-Port BRI Network Processor Module
PORT-7 PORT-6 PORT-5
PORT-3 PORT-2 PORT-1
7 6 5 4
RJ-45
BRI ports
8-Port BRI Network Processor Module
PORT-7 PORT-6 PORT-5
PORT-3 PORT-2 PORT-1
7 6 5 4
RJ-45
BRI ports
Network hazardous voltages are accessible in the BRI cable. If you detach the BRI cable,
ISDN
BRI
PORT-4
PORT-0
3 2 1 0
LEDs
ISDN
BRI
PORT-4
PORT-0
3 2 1 0
LEDs
Network Connection Considerations
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
Preparing for Installation 2-29