SYSTEM TESTS

TEST TOUCH-TONE RECEIVERS

1.At a single-line voice terminal, go off-hook. Dial *3 and the 2-digit number (01 through 12) of the touch-tone receiver to be tested. Receivers 01 through 04 are on the ZTN85 or ZTN131 (R3) CP. Receivers 05 through 12 are only present if your system has two TN748 CPs (05 through 08 receivers on one, and 09 through 12 receivers on the other).

You will hear busy tone if the receiver is in use, reorder tone if you misdialed or addressed a receiver not in your system (for example, you dialed *O5 and your system does not have a TN748 CP). Try again.

If you hear dial tone after 1 to 3 seconds of silence, proceed with this test.

2.DiaI the digits 1234567890 *#.

You should hear a dual-tone, multifrequency (DTMF) signal as each key is pressed.

You will hear dial tone after entering the “#“ if the test passes.

3. Repeat the test for each touch-tone receiver.

3-16

Page 176
Image 176
ADTRAN 25 manual Test TOUCH-TONE Receivers