Network Router User Manual

13-6
Cisco 7304 Router Modular Services Card and Shared Port Adapter Software Configuration Guide
OL-4807-02
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:
Router(config-if)# dsu mode {0 | 1 | 2 | 3 | 4}
E3:
Router(config-if)# dsu mode {0 | 1}
Specifies the interoperability mode used by a T3
controller.
• 0—Connects a T3/E3 controller to another
T3/E3 controller or to a Digital Link DSU
(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.