This unit can be used to connect additional components from the Digital program to the Central Station. 9-pin connecting cable (can be extended with 60126), 60 cm / 23-5/8" long, permanently attached to the Terminal, and a 9-pin socket for an additional Terminal or other components to be connected to the data bus. Four 7-pin sockets for connections from Mobile Stations (60124 adapter cable required) or other peripheral units. Dimensions 96 x 85 x 40 mm / 3-3/4" x 3-3/8" x 1-9/16".