Panasonic KX-TD500, Руководство по установке

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Troubleshooting
310 Installation Manual
(26) Digital trunk failure (frame trouble)
Error Code 1323 xyy: Digital trunk frame failure
1324 xyy: Digital trunk multi frame error
x = 1 to 3: Shelf number
yy = 01 to 14: Slot number
Possible cause of
the malfunction 1.
On booting-up of T1/PRI23 card (physical number xyy), it failed to
synchronize with the clock time sent from the Central Office.
Countermeasures
Note Another T1/PRI23 card with next priority will work as a master card, if
more than two T1/PRI23 cards are registered to the system by PC
programming (TSW card configuration) beforehand. Otherwise, the
system will synchronize with the system internal clock.
Confirm that the setting of "Frame Sequence" and
"Line Coding" are matched with that of the leased
lines. If not, change the setting of your KX-TD500 and
CSU. Then check the clock mode.
Ask the T1/PRI23 carrier to check the line conditions.
Or check the equipment in other switching system
which your T1/PRI23 lines are connected with.
Check the CSU. If not good, replace it with a new one.
Try Loop Back Test again.
End
OK
OK
OK
NG
OK
Test Results NG Test Results OK
NG
NG
Check the cabling between "T1/PRI23 and CSU"
and "CSU and NIU." If not properly cabled, change the
cabling.
Execute Loop Back Test (Internal).
Execute Loop Back Test (External : between KX-TD500
and CSU).
NG
Replace the T1/PRI23 card with
a new one.