Cisco Systems OL-2485-20 Network Card User Manual


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CHAPTER
20-1
Cisco Network Modules Hardware Installation Guide
OL-2485-20
20
Connecting T3/E3 Network Modules
This chapter describes how to connect T3/E3 network modules for modular access routers and contains
the following sections:
• 1-Port T3/E3 Network Modules, page 20-1
• Connecting T3/E3 Network Modules to the Network, page 20-2
• T3/E3 Network Module LEDs, page 20-3
• Related Documents, page 20-3
Tip To determine whether your router supports a specific network module, see Table 1-6 on page 1-16.
1-Port T3/E3 Network Modules
The NM-1T3/E3 network module is a single-port universal T3/E3 network module with integrated
CSU/DSU, clear channel, and subrate support. (See Figure 20-1.) Channels on the network module can
be configured as either T3 or E3 through Cisco IOS software.
Figure 20-1 1-Port T3/E3 Network Module Faceplate
Note The NM-1T3/E3 network module provides subrate T3 support for Digital Link, Kentrox, Larscom,
Verilink, and Adtran. The NM-1T3/E3 network module also provides subrate E3 support for Digital Link
and Kentrox.
SEE MANUAL BEFORE INSTALLING NETWORK MODULE
72536
NM-1T3/E3
LP
AIS
AL
CD
TX
RX
FERF/RAI
T3/E3
EN
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