Panasonic KX-T336200 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
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