Connections can be made for additional devices from the digital program to the Central Station. The unit has a permanent 9-conductor connecting cable, 60 cm / 23-5/8" long (can be extended with 60126) and a 9-pin socket for another Terminal or for other devices to the main line. Four (4) 7-pin sockets for connections from the Mobile Station (60124 adapter cable necessary) or other peripheral devices. Dimensions 96 x 85 x 40 mm / 3-3/4" x 3-3/8" x 1-9/16".