9-6
9
9.1 Fault Finding
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Table 9-8: List of Interswitch Alarm and Messages
Message Class Description ALR No.
i
ISW (Data) Alarm
No communication, data mismatched,
or checksum error.
327
ISW Busy INFO
Access to the ISW menu was made during
interswitching.
---
ISW Complete INFO
The switchover of the Interswitch ended
normally.
---
ISW Connection Masked INFO Inhibition of control/connection is set. ---
ISW Straight INFO
The interswitch is forced to change the
connection into straight.
---
ISW Time Out INFO Failed in switching. ---
Master Range CHG INFO
The range of the own display unit has changed
due to change in the range of the master
display unit.
---
Master Standby INFO
The master display unit does not transmit any
signals.
---
i. ALR No.: Unique alarm number in ALR sentence and ACK sentence
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