Multi-Entrance Adapter---Audio. 1 Req. For Each Add'l Entrance (After 1St) Up To 8 Total Entr Use With Ia543/Pk543a/Pk205
Spec Sheet Preview: The Alpha Communications® IA502 multi-entrance adapters are used with our IA543, and the older PK543A, PK543 and PK205 series amplifiers only. They provide audio intercom and door release switching for two (2) to eight (8) entrances (depending on how many IA502's are used). The IA502 adapters are used in addition to the system amplifier, and power off of the same transformer. A plug-in wiring harness makes installation quick and easy. You must add one (1) IA502 switching adapter to each entrance, after the first entrance, up to a maxim …