NEC NDA-24300 manual Ground Failure, ➀ Location of faulty circuit card

Models: NDA-24300

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SYSTEM MESSAGES

3-G

Ground Failure

Default Alarm:

Default Grade:

Grade Modified:

Lamp Modified:

SUP

1

 

 

 

 

 

 

This message displays when a wire of the line between the LC circuit card and the telephone set is short- circuited with ground.

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

 

 

 

➀ ➁

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 faulty circuit card

 

 

b0-b2: Circuit No. (0-7)

 

 

 

 

 

 

b7

b6

b5

b4

b3

b2

b1

b0

 

b3-b7: Circuit card No. (0-31)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Location of faulty circuit card

 

b0, b1: Unit No. (0-3)

b7

b6

b5

b4

b3

b2

b1

 

b2-b7: MG No. (0-1)

b0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: This message displays when the specific LC card providing the above function is used.

CHAPTER 3

NDA-24300

Page 74

Issue 1

Page 101
Image 101
NEC NDA-24300 manual Ground Failure, ➀ Location of faulty circuit card, ➁ Location of faulty circuit card