NEC NDA-24300 manual Digital Line Warning, ➀ Location of PM Lens with a fault, ➁ Kind of fault

Models: NDA-24300

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3-H

SYSTEM MESSAGES

Digital Line Warning

Default Alarm:

Default Grade:

Grade Modified:

Lamp Modified:

SUP

2

 

 

 

 

 

 

This message displays when the DTI card detects an abnormal state of a digital line but this failure has no in- fluence on the speech path. When the status worsens, the system issues [3-I] Digital Line Failure message.

1: XXXX XX00 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000

➁ ➂

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

Location of PM (LENS) with a fault

b7

b6

b5

b4

b3

b2

b1

b0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b0-b4: Group

b5, b6: Unit

b7: 0/1 = Even-numbered MG/Odd-numbered MG

Kind of fault

 

 

 

 

01H =

Frame alignment loss occurs three times a day

b7

 

b6

b5

b4

b3

b2

b1

b0

02H

= Bit error rate is over 10-6

 

03H

= Slip occurs twice a day

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

04H

= Multiframe alignment loss occurs three times a day

 

 

 

 

 

 

 

 

 

08H

= Fault detection on the CCIS Bch

Time Slot No. of fault (This data is

b0-b4: Time slot No. in which the digital line failure occurred (1-16, 17-31)

 

valid only when the kind of fault is

 

 

 

 

08H.)

 

 

 

 

 

 

 

 

 

b7

 

 

 

b4

b3

b2

b1

b0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NDA-24300CHAPTER 3

Page 75

Issue 1

Page 102
Image 102
NEC NDA-24300 manual Digital Line Warning, ➀ Location of PM Lens with a fault, ➁ Kind of fault