ADTRAN 1175408L1 user manual Operation, Overview, Testing

Chapter 3 Operation

OVERVIEW

The Quad FXS Voice Module goes operational upon insertion into an active TA 750/850/1500 chassis. Once the unit is inserted, it must be mapped to a network interface for proper operation. Refer to the TA 850 User Manual Channel Bank chapter (DS0 mapping section) for information.

LED Status

After the initialization sequence, faceplate LEDs show the status of the ana- log service for each customer loop, as follows:

Off	On Hook
Flashing	Ringing
On	Off Hook (Busy)

TESTING

Self-Test

A self-test is performed on the Quad FXS Voice Module when it is inserted into an active TA 850 chassis. The test verifies proper operation of critical cir- cuits. If the test is successful, all four LEDs turn on in a predefined sequence, the unit is placed in service, and the LEDs then return to normal operation showing current status of the FXS.

Initiated Tests

Other tests conducted on the Quad FXS Voice Module are initiated via the screen menus and VT 100 terminal. (See Quad FXS Voice Module Test Options on page 3-5 for more information.)

61175408L1 Quad FXS Voice Module User Manual 3-1