Specifications

<C#>-F V.3229 / V.3229L

<Re

erence>

Test Procedures

¥An alternative to the above procedure is to request

the operator at the remote modem to place his modem

in LOCAL ANALOG LOOP and enable his bilateral

analog option. This places the remote modem in

local analog loop test. It also connects the transmit

phone line to the receive phone line through a buffer

amplifier stage. At the local modem, configure for

TEST PATTERN. The test pattern transmitted by

the local modem is looped around through a buffer

stage at the remote modem and back to the local

modem.

¥At the local modem, the front panel indicators under

ideal conditions should be:

¥The TEST PATTERN ERRORS display counts re-

ceived errors.

In this test you are connecting two telephone line

links in series, doubling the distortion effects. A

telephone link indicated as marginal by this test may

be satisfactory as used in normal operation.

¥After determining the quality of the telephone lines,

exit the test.

¥If fault remains unidentified, call Technical Servic-

es.

AT COMMAND

RECOVERY FOR L

MODELS

For the L model of the modem, holding the TALK/

DATA button down for 5 seconds reenables AT

commands. The TALK LED flashes 3 times to

indicate that the command set has been loaded.

TEST