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Configuring the Digital Modem Network Module for the Cisco 3640 Router
Configure the E1/T1 Network Module for ISDN PRI
The first step in configuring a digital modem interface is to configure ISDN PRI on either a channelized
T1 or E1 controller, depending on the ISDN service in your area. The ISDN PRI network modules can
have either one or two ports; if the ISDN PRI module installed in your device has two ports, you need
to apply the following procedure to both ports.
Configure Channelized E1 ISDN PRI
To configure ISDN PRI on a channelized E1 controller, perform the following tasks, beginning in global
configuration mode:
Command
isdn switch-type switch type
controller e1 slot/unit
framing crc4
linecode hdb3
pri-group [timeslots range]
The values used in this procedure for the framing and linecode commands are examples only. Use
Note
the framing type and line encoding specified by your E1 service provider.
For more information about configuring ISDN PRI on a channelized E1 controller, refer to the
"Configure ISDN PRI" section of the Cisco IOS Release 11.3 Dial Solutions Configuration Guide.
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
3-52
Table 3-13 ISDN PRI Switch Types
Country
Australia
Europe
Japan
North America
Chapter 3
Configuring with the Command-Line Interface
Description
Select a service provider switch type that
accommodates PRI.
Table 3-12
supported switch types.
Specify a controller type and define its location in
the Cisco 3640.
Define the framing characteristics as cyclic
redundancy check 4 (CRC4).
Define the line code as high-density bipolar 3
(HDB3).
Configure ISDN PRI. This command specifies the
time slots on the T1 line to be allocated to PRI
service.
ISDN Switch Type
primary-ts01
primary-net5
primary-ntt
primary-4ess
primary-5ess
primary-dms100
shows a list of
OL-1957-03
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