Cisco Systems 7304 manual Configuring Data Service Unit Mode, 13-6

Chapter 13 Configuring the 2-Port and 4-Port T3/E3 SPAs

Configuration Tasks

Configuring Data Service Unit Mode

Configure the SPA to connect with customer premise Data Service Units (DSUs) by setting the DSU mode. Subrating a T3 or E3 interface reduces the peak access rate by limiting the data transfer rate. To configure the DSU mode and bandwidth, use the following commands:

Command	Purpose
Router# configure terminal	Enters global configuration mode.
Router(config)# interface serial slot/subslot/port	Selects the interface to configure and enters
	interface configuration mode.
	• slot/subslot/port— Specifies the location of the
	interface. See the: “Specifying the Interface
	Address on a SPA” section on page 13-5
T3:	Specifies the interoperability mode used by a T3
Router(config-if)# dsu mode {0 1 2 3 4}	controller.
E3:	• 0—Connects a T3/E3 controller to another
	T3/E3 controller or to a Digital Link DSU
Router(config-if)# dsu mode {0 1}
	(DL3100 in T3 mode and DL3100E in E3
	mode). This is the default.
	• 1—Connects a T3/E3 controller to a Kentrox
	DataSMART T3/E3 IDSU.
	• 2—Connects a T3 controller to a Larscom
	Access-T45 DS3 DSU.
	• 3—Connects a T3 controller to an Adtran
	T3SU 300.
	• 4—Connects a T3 controller to a Verilink
	HDM 2182.

Cisco 7304 Router Modular Services Card and Shared Port Adapter Software Configuration Guide

13-6 OL-4807-02