Running Diagnostic Tests - Motorola 3460 Fast’R User Manual

Running Diagnostic Tests

This section describes loopback, busy out, and retrain tests, which
analyze local- and remote-modem performance and the telephone line to
assist you in isolating network problems. These tests can be initiated:
• With AT commands from an attached PC or terminal
• With commands from Fast'RVu
• With commands from a Motorola network management system
IMPORTANT: Run one test at a time. Tests interrupt network data.
Table 5-3. Running Diagnostic Tests
Test
Local Analog
Loopback (LAL)
LAL Pattern
Remote Digital
Loopback (RDL)
Local Digital
Loopback (LDL)
Busy Out
Retrain
Terminate
LAL, LDL, and RDL tests using the EIA leads are not supported.
Parameters and options shown shaded gray vary by country. For your
country's options, refer to the 3460 Fast'R Reference Guide.
5-10
3460 Fast'R
Description
Tests local-modem transmit and receive
circuitry
Tests local-modem circuits
Tests local- and remote-modem circuits
and the telephone line
Tests local-modem telephone lines and
circuits.
Lets the modem appear busy to
incoming calls.
Lets you manually retrain the local and
remote modems
Terminates a test in progress
AT
Command
AT&T1
AT&T8
AT&T6
AT&T7
ATH1
ATO1
AT&T0