Panasonic KX-TDA50 Installation Manual page 45

4.
Stick an appropriate optional card label (included) to the left side of the corresponding card.
5.
Connect a cable to an appropriate port of the card.
For details about pin assignments, refer to the appropriate section in "2.3 Information about the CO Line
Cards" and "2.4 Information about the Extension Cards".
Note
Make sure to connect cables after installing the card in the PBX, not before.
6.
Repeat the procedure for other cards.
A.
When installing a card in Slot 07, make sure to detach the LED holder first. After installing the card,
reattach the LED holder.
Document Version 2010-11
Optional Card Label
2.2.6 Installing/Removing the Optional Service Cards
Installation Manual 45