23-P

SYSTEM MESSAGES

DCH Back-Up Automatic Change Start/End

Default Alarm:

Default Grade:

Grade Modified:

Lamp Modified:

NON

1

 

 

 

 

 

 

This message displays when the Primary Dch fails, and the Dch Back-Up function is operated automatically.

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

➀ ➁ ➂ ➃ ➄ ➅

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

Condition of Dch

 

 

 

b0-b7:

 

b7

b6

b5

b4

b3

b2

b1

b0

1

= Back-up Start

2

= Back-up End

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

= Back-up Failed

 

 

 

 

 

 

 

 

 

 

Location of Dch (Primary)

b7 b6 b5 b4 b3 b2 b1 b0

Location of Dch (Back-up)

b7 b6 b5 b4 b3 b2 b1 b0

b0-b4: Group No.

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

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

b0-b4: Group No.

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

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

NDA-24300CHAPTER 3

Page 213

Issue 1

Page 240
Image 240
NEC NDA-24300 manual 23-P, DCH Back-Up Automatic Change Start/End, ➀ Condition of Dch