Chapter 4
Troubleshooting and Diagnostics
This chapter describes how to perform diagnostics tests on ASMi-31. The function of diagnostic tests on ASMi-31 is to:
Check that the system is operating normally
Isolate faulty equipment or cables
Identify other sources of system malfunction.
Tests are activated via the corresponding DTE pins and monitored via the ASMi-31 front-panel LED indicators.
4.1 Diagnostic Tests
The diagnostic capabilities of the ASMi-31 modem allow rapid checkout of the DTEs, the ASMi-31 modem, and connecting lines. The test will immediately verify the operational performance of each unit in the system or provide an indication of equipment failure.
Before testing the operation of the data system equipment and 2-wire line circuits, first ensure that all units are powered on and configured normally, then perform the test steps described below, in order.
ASMi-31 supports two types of loopback tests for evaluating the operation of the data system equipment and line circuits. Using these loopbacks, you can test the communication between the attached equipment, internal circuitry of the local ASMi-31 and the remote ASMi-31.
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