- Compatible with Panasonic Phone Systems KX-TDE600 and KX-TDA600
- Connect the basic shelf KX-TDA600 KX-TDE600 to the first expansion KX-TDA620 mounts in the
KX-TDA600 basic shelf
- Up to KX-TDA6111 BUS-ME cards can be mounted on the BUS-M card KX-TDA6110 to connect to second
and third expansion shelves KX-TDA620 to the basic shelf KX-TDA600 or KX-TDE600