RELAY MATRIX FOR SELECTOR NETWORKS

摘要

A reed relay matrix for use in selectors in a telephone exchange comprises a crossing point network having relays arranged in rows and columns constituting switching elements of speech paths and a control unit and holding units common to the network. The relays of the crossing point network are of a monostable reedrelay type. Each through connection is of a two pole type, the crossing point comprising just two make contacts. A wire connection between matrices in the selector is limited to the speech wires since a continuous holding wire is not utilized. Addressing of the crossing points in a connection is carried out by means of a central processor which sets up and releases the connection.