I just finished setting up paging using a PA1 connected to an ATT PagePac20 amplifier. The issue is that on the Pagepac, there are 4 connections. 2 are for audio, but the other two have to be connected to cause the amplifier to come on. (I replaced an ATT phone system).
I need to be able to short these two wires together anytime the PA1 is active then disconnect them when it is inactive (during a page and when idle).
Is this possible without adding an external relay circuit.
Is there a source to find out what the pins/cables on the PA1 do?
You will need an external relay. The I/O cable is intended to be used with an external relay board (see below)
An explanation of the I/O pins can be found in the attached .pdf document.