Panasonic KX-T336 Installation Instructions Manual page 281

3.37 Digital trunk failure (AIS signal reception)
Error Code
Possible cause of
the malfunction
Countermeasures
Note
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T-l card (physical number xx) received the
signal from the Central Office.
Confirm that the setting of "Frame Sequence" and "Line
Cording" are matched with that of the leased lines.
If not, change the setttng of your KX-T336 and CSU.
/Then check the ciockmode.,
Check the cabling between 'T-l and CSU' and 'CSU
and NIU.' If not properfy cabled, change the cabling.
Execute Loopback
Test Results NG
OK
Ask the T-l carrier to check the line conditions.
Or, check the equipment in other switching system which
your T-l lines are connected with.
Another T-l card with next priority will work as a master card, if more than
two T-l cards were registered to the system by CLP command (Refer to
Section 64.03) beforehand. Otherwise, the system will synchronize with the
system internal clock.
14-E-37-3
O K
NG
Test Results
NG
I
I