Manual
1-, 2-, and 4-Port T1/E1 HWICs and 8-Port T1/E1 Network Module
controller
20
Cisco IOS Release 12.4(11)XW5, and 12.4(20)T
Command History
Usage Guidelines
T1 or E1 Fractional Data Lines
This command is used in configurations where the router or access server is intended to communicate
with a T1 or E1 fractional data line. Additional parameters for the T1 or E1 line must be configured for
the controller before the T1 or E1 circuits can be configured by means of the interface global
configuration command.
To view the status of the controllers use the show controllers command.
Examples
Cisco 7500 Series Router As a T1 Controller
The following example configures the MIP in slot 4, port 0 of a Cisco 7500 series router as a T1
controller:
Router(config)# controller t1 4/0
Router(config-controller)#
Cisco AS5800 Access Server with Dial Shelf
The following example configures the T1 controller in shelf 1, slot 0, port 0:
Router(config)# controller t1 1/0/0:1
Router(config-controller)#
Cisco 3660 As a J1 Controller
The following example configures the Cisco IOS interface card in slot 3, port 0 of a Cisco 3660 as a J1
controller:
Router(config)# controller j1 3/0
Router(config-controller)#
Related Commands
Release Modification
10.0 This command was introduced.
10.3 The e1 keyword was added.
12.0(3)T Support was added for dial shelves on Cisco AS5800 access servers.
12.2(7)XO The j1 keyword was added for the Cisco 2600 and Cisco 3600 series.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.4(11)XW The subslot argument was added for the Cisco 2800 and Cisco 3800 series.
Command Description
bert abort Resets the T1 or E1 controller.
interface serial Specifies a serial interface created on a channelized E1 or channelized
T1 controller (for ISDN PRI, CAS, or robbed-bit signaling).
show controllers
content-engine
Displays information about the E1 links supported by the NPM
(Cisco 4000) or MIP (Cisco 7500 series).
show controllers j1 Displays information about the J1 link.
show controllers t1 Displays the total number of calls and call durations on a T1 controller.