Panasonic KX-T336 Installation Instructions Manual page 271

3.03 TSW clock down (Internal/External)
(1) Internal clock down
Error Code
Possible cause of
the malfunction
Countermeasures
Note
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0300
1) TSW card connection error
2) TSW card clock link failure (Internal)
Is the trouble registered in the Error
Log ?
Yes
I
Is an Extension/CO call possible ?
No change in
condition
If the TSW clock malfunction occurs:
1) The attendant console does not function.
(Communication to the LPR becomes impossible)
2) Calling becomes impossible
3) Power Failure Transfer will
14-E-6
(70695)
N o
I
Replace the TSW card
Replace the Shelf
Yes
I
O K