MDS MDS 9710 Series Specifikace stáhnout pdf (Strana 38)

30 MDS 4710/9710 I/O Guide MDS 05-3305A01, Rev. D

5.2 Event Codes

When an alarm condition exists, the transceiver creates a code that can

be read on an HHT connected to the

DIAG. port. These codes can help

resolve many system difficulties. Refer to Table 11 (Page 31) for a def-

inition of the event codes.

Checking for Alarms—STAT command

To check for alarms, enter

STAT on the HHT. If no alarms exist, the mes-

sage

NO ALARMS PRESENT appears at the top of the display (Figure 10).

Invisible place holder

Figure 10. HHT Display in Response to STAT Command

If an alarm does exist, a two-digit alarm code (00–31) is displayed and

the event is identified as a Major or Minor Alarm. A brief description of

the alarm is also given.

If more than one alarm exists, the word

MORE appears at the bottom of

the screen. To view additional alarms, press .

Major Alarms vs. Minor Alarms

Major Alarms—report serious conditions that generally indicate a hard-

ware failure, or other abnormal condition that prevents (or seriously

hamper) further operation of the transceiver. Major alarms generally

indicate the need for factory repair. Contact GE MDS for further assis-

tance.

Minor Alarms—report conditions that, under most circumstances do

not prevent transceiver operation. This includes out-of-tolerance condi-

tions, baud rate mismatches, etc. The cause of these alarms should be

investigated and corrected to prevent system failure.

ENTER

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MDS MDS 9710 Series Specifikace Strana 38