NEC SV8500 Operation And Maintenance Manual - 6-B: Rgu & Howler Failure

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CHAPTER 3

System Messages

6-B: RGU & Howler Failure

This message displays when a fault in either the ringer or howler tone occurs in the PWR card.

Unit and MG number of fault 

detection

Kind of fault

Default Alarm

Default Grade

Grade Modified

Lamp Modified

MN

3

1:

XXXX

0000

0000

0000

2:

0000

0000

0000

0000

3:

0000

0000

0000

0000

4:

0000

0000

0000

0000

5:

0000

0000

0000

0000

6:

0000

0000

0000

0000

7:

0000

0000

0000

0000

8:

0000

0000

0000

0000

9:

0000

0000

0000

0000

b7

b2

b1

b0

b7

b1

b0

1 2

b0, b1: Unit (0-3)

b2:

0/1 = Even-numbered MG/Odd-numbered MG

1

b0:

0/1 = -/RGU (Ringing Unit) Fault

b1:

0/1 = -/Howler Fault

2