SYSTEM MESSAGES

Scan Data 1: Current Status of PLO card

b7 b6 b5 b4 b3 b2 b1 b0

Scan Data 2: Current Status of PLO card

b7

b4

 

 

b1

b0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b0:

Clock status at time of detection

 

 

0/1 = STBY/ACT

 

b1:

Circuit Card status at time of detection

 

0/1 = PLO synchronizing/PLO self running or drift abnormal

b2:

0/1 = -/Input clock down

 

b3, b4: Route of Input clock

 

 

 

 

 

b4

b3

DCS Input Route

Route Of Input Clock

 

 

 

 

0

0

0

0

 

 

 

 

0

1

1

1

 

 

 

 

1

0

-

2

 

 

 

 

1

1

-

3

 

 

 

 

b5:

0/1 = -/PLO input all down

 

b6:

0/1 = -/PLO output down

 

b7:

0/1 = -/Drifting

 

b0:

0/1 = -/5msec Burst Clock down

 

b1:

0/1 = -/Frame Synchronization from SYNC card is down

b4:

0/1 = -/Internal OSC clock down

 

CHAPTER 3

NDA-24300

Page 60

Issue 1

Page 87
Image 87
NEC NDA-24300 manual DCS Input Route Route Of Input Clock