Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 125

Connecting ISDN PRI Network Modules
This chapter describes how to connect Integrated Services Digital Network (ISDN) Primary Rate
Interface (PRI) network modules for Cisco modular routers and contains the following sections:
Channelized T1/E1 PRI Network Modules with G.703, page 7-2
•
Channelized T1/ISDN PRI Network Modules, page 7-6
•
Channelized T1/ISDN PRI with CSU Network Modules, page 7-7
•
• Channelized E1/ISDN PRI Balanced (120-Ohm) Network Modules, page 7-9
Channelized E1/ISDN PRI Unbalanced (75-Ohm) Network Modules, page 7-11
•
• PRI Module LEDs, page 7-13
Online Insertion and Removal with a Cisco PRI Network Module (Cisco 3660 and Cisco 3745
•
Only), page 7-17
Upgrading ISDN PRI Network Modules, page 7-17
•
Unless specifically identified, references to PRI modules in this chapter include all these network
Note
modules.
Cisco Fast Ethernet-PRI network modules also provide a PRI interface. See
Note
Fast Ethernet-PRI Network Modules,"
Do not install an ISDN BRI network module in the same chassis as an ISDN PRI network module,
Note
unless you are using Cisco IOS Release 11.3(3)T or later. Earlier Cisco IOS releases do not support
this configuration.
Tip To determine whether your router supports a specific network module, see
CT1/PRI modules are available with or without a built-in channel service unit (CSU), and with one or
two ports. CT1/PRI modules connect to an external CSU; CT1/PRI-CSU modules connect directly to the
network. Each T1 module provides up to 24 virtual channels per T1 port. Each channel can be configured
individually as a serial interface.
OL-2485-20
C H A P T E R
for further information.
Cisco Network Modules Hardware Installation Guide
7
Chapter 4, "Connecting
Table 1-6 on page 1-16.
7-1