40

Configuring the ICX-250

External DIP Switches

Note: It is recommended that all unassigned channels be provided an idle termination.

T1 Network

TransmitReceive

ICX-250

FXS 1

FXS 1 Loopback

T24 Network

TransmitReceive

ICX-250

FXS 24

FXS 24 Loopback

The selected DS0 is looped after leaving the framer before reaching the FXS Interface. The CPU is used to control this loopback via the Time Slot Assigner (TSA, a part of the CPU). Subsystems T1 Line Interface Unit, T1 Framer, and CPU are exercised.

11276-A

ADCP-62-023

Issue 1, September 1998

© 1998, ADC Telecommunications, Inc.