Panasonic KX-TDA6111 Additional Bus Connection Card:

BUS-ME Card Compatible with the KX-TDA 600 & KX-TDE600 Optional shelf expansion card. Mounts on the KX-TDA6110 BUS-M card. Required to connect second and third expansion shelves KX-TDA620 to the basic shelf KX-TDA&E600 Bus cables included with card. On card required per expansion shelf.

Specifications:

• Compatible with KX-TDE600 and KX-TDA600 Panasonic Phone Systems