Sender

A sender was a special type of circuit in 20th-century electromechanical telephone exchanges which registered the telephone numbers dialed by the subscriber, and then transmitted that information to another exchange^[1]. In some American exchange designs, for example, the 1XB switch there were both originating senders and terminating senders^[2].

The corresponding device in the British director telephone system was called a "director" and, in other contexts, "register".

A secondary meaning within the UK broadcast engineering community is as a synonym for broadcast transmitter.

See also

• communication source
• Director telephone system
• Panel switch
• Register signaling

References