Cisco T3 Guida rapida

CHAPTER

20-1

Cisco Network Modules Hardware Installation Guide

OL-2485-20

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

TX RX

FERF/RAI

T3/E3

20-2

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Chapter 20 Connecting T3/E3 Network Modules

Connecting T3/E3 Network Modules to the Network

To connect a T3/E3 network module to the network, use a 75-ohm 728-A coaxial cable to connect the

BNC connector on the network module to a networking device. (See Figure 20-2.)

Warning

This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do

not touch the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11

port, or the associated circuit-board when the ringer is active. The ringer is activated by an incoming

call. Statement 1042

Warning

If the symbol of suitability with an overlaid cross appears above a port, you must not connect the port

to a public network that follows the European Union standards. Connecting the port to this type of

public network can cause severe injury or damage your router. Statement 1031

Caution To minimize transient surges, the internal wiring should not be routed in the same conduit with power

lines or external telephone lines.

Figure 20-2 Connecting a T3/E3 Network Module to a Networking Device (Cisco 7603 Router Shown)

72715

SUPERVISOR2

WS-X6K-SUP2-2GE

STATUS

SYSTEM

CONSOLE

PWR MGMT

RESET

CONSOLE

PORT

MODE PCMCIA EJECT

PORT 1 PORT 2

Switch Load

100%

LINK

OSM-4OC12 POS-SI

4 PORT OC-12 POS SM IR

STATUS 1

4RESET

LINK

CARRIER

ALARM

CARRIER

ALARM

CARRIER

ALARM

CARRIER

ALARM

ACTIVE

PORT 1

ACTIVE

PORT 2

ACTIVE

PORT 3

ACTIVE

PORT4

OSM-4OC12 POS-SI

4 PORT OC-12 POS SM IR

STATUS 1

4RESET

LINK

CARRIER

ALARM

CARRIER

ALARM

CARRIER

ALARM

CARRIER

ALARM

ACTIVE

PORT 1

ACTIVE

PORT 2

ACTIVE

PORT 3

ACTIVE

PORT4

SEE MANUAL BEFORE INSTALLING NETWORK MODULE

NM-1T3/E3

LP AIS AL

TX RX

FERF/RAI

T3/E3

TX RX

20-3

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OL-2485-20

Chapter 20 Connecting T3/E3 Network Modules T3/E3 Network Module LEDs

Tip When connecting the T3/E3 network module to a port adapter used in another router series, verify that

you are connecting the TX port on the network module with the RX port on the port adapter, and the TX

port on the port adapter to the RX port on the network module.

T3/E3 Network Module LEDs

All network modules have an enable (EN) LED. This LED indicates that the module has passed its

self-tests and is available to the router. See Figure 20-3 and Table 20-1 for LEDs on the T3/E3 network

module.

Figure 20-3 T3/E3 LEDs

Related Documents

Cisco IOS Software Documentation

For information on Cisco IOS software features specific to the T3/E3 network module, see the Clear

Channel T3/E3 Network Module with Integrated CSU/DSU document.

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