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Maintenance Objects
1668
Issue 5 October 2002
See “SYNC (Synchronization)” for more details of the escalation plan. There
exists a strong interdependency among the DS1 Interface circuit pack
Maintenance, Synchronization Maintenance, and TDM Bus Clock Maintenance
MOs.
Error Log Entries and Test to Clear Values
Tone-Clock
Role
Synchronization
Facilities
Initial External
Synchronization
Source
Backup External
Synchronization
Source
Internal
Source
MASTER
Stratum 3 Clock
Source "A"
Source "B"
Local
oscillator
DS1 Primary and
Secondary
DS1 Primary
DS1 Secondary
DS1 Primary Only
DS1 Primary
None
No External Source
None
None
SLAVE
PNC Duplication
Active EI
Standby EI
No PNC
Duplication
Active EI
None
Table 490.
TDM Bus Clock Error Log Entries
Error
Type
Aux
Data
Associated Test
Alarm
Level
On/Off
Board
1
Test to Clear Value
0
2
0
Any
Any
Any
test tone-clock PC sh r 1
1(a)
0
None
MINOR
OFF
18(b)
0
busyout tone-clock
PC
WARNING
OFF
release tone-clock PC
130(c)
None
257(d)
None
WARNING
OFF
513(e)
Any
Clock Circuit Status
Inquiry (#148)
MINOR
3
OFF
test tone-clock PC
769(f)
Any
Clock Circuit Status
Inquiry (#148)
MAJOR
‡
ON
test tone-clock PC sh r 10
1025(g)
Any
Clock Slip
Inquiry(#149)
test tone-clock PC sh
1281(h)
1282(h)
Any
None
MINOR
OFF
1537
Any
Clock PPM
Inquiry(#150)
test tone-clock PC sh
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