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CHAPTER 3 System Messages
1-W: PLO Restore
This message displays when a failure such as internal clock down occurred to PLO is restored.
Restoration of PLO fault
Current Status of PLO card
Current Status of PLO card
Default Alarm Default Grade Grade Modified Lamp Modified
NON 3
1: XXXX XX00 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
b7 b0
b7 b6 b5 b4 b3 b2 b1 b0
b7 b4 b1 b0
1 2
3
b0: 0/1 = PLO System 0/PLO System 1
1
b0: 0/1 = Clock is in STBY side/ACT side
b1: 0/1 = PLO synchronizing/PLO self running or drifting
b2: 0/1 = -/Input clock down
b3, b4:Route of input clock (see the table below)
b5: 0/1 = -/PLO input all down
b6: 0/1 = -/PLO output down
b7: 0/1 = -/Drifting
b4 b3
CONNECTED WITH PRIMARY
OSCILLATOR (M-OSC)
CONNECTED WITH
EXTERNAL CLOCK
0 0 M-OSC 0 Route 0
0 1 M-OSC 1 Route 1
1 0 – Route 2
1 1 – Route 3
2
b0: 0/1 = -/Five millisecond clock down
b1: 0/1 = -/Frame Synchronization from SYNC card is down
b4: 0/1 = -/Internal OSC clock down
3
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