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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1491TONE-BD (Tone-Clock Circuit Pack)
10
Notes:
a. Error Type 1
This error indicates the circuit pack totally stopped
functioning or it was physically removed from the system.
NOTE:
The alarm is logged approximately 11 minutes after the circuit pack
is removed/SAKI Sanity Test (#53) fails.
If the circuit pack is not present in the system, insert a circuit pack in the
slot indicated by the error to resolve the error.
If the circuit pack is present in the system, it is faulty and must be
replaced. See the preceding section, ‘‘
How to Replace a Tone-Clock
Circuit Pack’’.
If the faulty circuit pack is in standby mode, a MINOR alarm is raised, but
no other system action is taken. If the circuit pack is the active
Tone-Clock, further effects of this error depend on the Reliability Option for
the switch.
If an interchange is attempted and the system is unable to activate the
standby Tone-Clock, Emergency Transfer is activated. If the problem is in
the PPN the entire system is affected. Otherwise only the EPN in question
is affected. When this happens, both circuit packs are faulty and must be
replaced. See the preceding section, ‘‘
How to Replace a Tone-Clock
Circuit Pack’’.
If a successful interchange occurs in response to a failure of the active
Tone-Clock, or if a standby Tone-Clock fails, the faulty Tone-Clock should
be replaced.
b. Error Type 18
The indicated Tone-Clock circuit pack has been made
unavailable via the busyout tone-clock PC command. This error applies
only to High or Critical Reliability systems (an active Tone-Clock may not
be busied out). To resolve this error, execute release tone-clock PC.
Table 10-448. Effect of Error Type 1 on an Active Tone-Clock Circuit
Pack
Location of Tone-Clock Circuit Pack
Reliability
Option PPN EPN
Standard System Emergency Transfer
(entire system affected)
Emergency Transfer in the
affected EPN
High Interchange to standby
Tone-Clock in the PPN
Emergency Transfer in the
affected EPN
Critical Interchange to standby
Tone-Clock in the PPN
Interchange to standby
Tone-Clock in the affected
EPN