RAD Data comm ASM-60 Chapter Diagnostics, Error Detection, Power-Up Self-Test, Front-Panel LEDs

Chapter 5

Diagnostics

This chapter describes the ASM-60 diagnostic functions, which include:

•Status indications, alarms, power-up self-test

•VDSL performance diagnostics

•LED testing.

5.1 Error Detection

This section explains how to detect and fix errors and other problematic conditions in ASM-60.

Power-Up Self-Test

ASM-60 performs a hardware self-test upon turn-on. The self-test sequence checks the critical circuit functions of the modem.

Front-Panel LEDs

The status of ASM-60 is indicated by the ALM, SYNC A and SYNC B indicators located on the front panel. For the description of LEDs and their functions, refer to Chapter 3.

Alarms

ASM-60 maintains two alarm buffers: temporary (up to 20 alarms) and permanent (up to 100 alarms). The temporary alarm buffer is displayed by the ASM-60 management software as Alarms screen (see Figure 5-1), and the permanent alarm buffer as Log File (see Figure 5-2).

An alarm enters simultaneously both Alarms display and log file, and the ALM LED turns on to indicate the condition. But once the event that caused the alarm is cleared, the alarm is removed from the temporary buffer, but it remains in the log file, enabling you to view the alarm history.

Main Menu

↓2

Display

↓2

Alarms

Working with the Temporary Alarms Buffer

To access the Alarms screen:

1.From the Main menu, type 2. The Display menu appears.

2.From the Display menu, type 2.

The Alarms screen appears (Figure 5-1).

Error Detection 5-1