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Connecting Cisco ISDN PRI Network Modules to the Network

Channelized T1/E1 PRI Network Modules with G.703

Connecting Cisco ISDN PRI Network Modules to the Network

CT1/PRI and CT1/PRI-CSU modules receive and transmit data bidirectionally, at the T1 rate of

1.544 Mbps.

Channelized T1/E1 PRI Network Modules with G.703

This section provides information about the following network modules:

• 1-port T1/E1 channelized PRI network module with G.703 (NM-1CE1T1-PRI) (see Figure 1)

• 2-port T1/E1 channelized PRI network module with G.703 (NM-2CE1T1-PRI) (see Figure 2)

Cisco T1/E1 channelized PRI network modules with G.703 provide connection of one or two primary

rate ISDN lines. T1 or E1 interfaces are configurable through Cisco IOS command-line interface (CLI)

commands. Each port supports 100/120-ohm balanced and 75-ohm unbalanced termination, and features

RJ-48C connectors and cable accessories allowing for DB-15, BNC, and other connector types. An

onboard advanced integration module (AIM) connector allows for future universal port AIM support.

Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,

connect the 1-port T1/E1 channelized PRI network modules with G.703 (NM-1CE1T1-PRI) and 2-port

T1/E1 channelized PRI network modules with G.703 (NM-2CE1T1-PRI) only to intrabuilding or

nonexposed wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded

at both ends.

Cisco T1/E1 channelized PRI network modules with G.703 (NM-1CE1T1-PRI and NM-2CE1T1-PRI)

replace the following network modules (also described in this chapter):

• NM-1CE1B

• NM-1CE1U

• NM-1CT1

• NM-1CT1-CSU

• NM-2CE1B

• NM-2CE1U

• NM-2CT1

• NM-2CT1-CSU

For information on Cisco modular access routers supporting Cisco channelized T1/E1 PRI network

modules with G.703, see Table 1.

Table 1 Modular Access Routers Supporting Cisco Channelized T1/E1 PRI Network Modules

with G.703

Modular Access Router NM-1CE1T1-PRI NM-2CE1T1-PRI

Cisco 26xx No No

Cisco 26xxXM Yes Yes

Cisco 2691 Yes Yes

Cisco 3620 No No

Cisco 3631 Yes Yes

Cisco 3640 No No

1 2 3 4 5 6 7 ... 15 16

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