Telex SSA-324 System-to-System Interface with Call Signal

The Telex SSA-324 System-to-System Interface with Call Signal interconnects the voice signals between different intercom systems. In addition, it can optionally interconnect calls or tally signals between systems. Each interface includes two (2) 2-wire to 4-wire converters. The 4-wire interface can deliver and accept high level signals. It can also function as a 2-wire to 2-wire interface by interconnecting the two (2) individual interfaces at the 4-wire level. It does two (2) voice channels when used as a dual 2-wire to 4-wire interface and one (1) voice channel when functioning as a 2-wire to 2-wire interface.