SYSTEM MESSAGES

13-O

Digital Line Failure

Default Alarm:

Default Grade:

Grade Modified:

Lamp Modified:

SUP

2

 

 

 

 

 

 

This message displays when a digital line failure occurs.

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

Accommodated location

b7 b6 b5 b4 b3 b2 b1 b0

b0-b4: Group No.

b5, b6: Unit No. (0-3)

b7: MG No.

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

Kind of Fault

b7b4 b3 b2 b1 b0

b0-b4: Kind of Fault (HEX)

00 = -

01 = Frame alignment loss PCM down 02 = Bit error rate is over 10-4

03 = Slip is detected

04 = Opposite office alarm (AIS) is detected

05 = -

06 = Multi-frame alignment loss

07 = Frame alignment loss PCM down (continuously)

08 = Multi-frame alignment loss (continuously)

CHAPTER 3

NDA-24300

Page 172

Issue 1

Page 199
Image 199
NEC NDA-24300 manual O Digital Line Failure