Phonic PX2300, User Manual

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3.2 BACK PANEL
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. EMERGENCY
Emergency control and audio input are for emergency paging and evacuation system.
24VDC CONTROL:
A terminal block inputs accept external 24VDC regardless of the postive and negative poles to activate
the emergency function, which route the external emergency message to all outputs. It provides an
override control for emergency use.
AUDIO:
Accept an external audio input.
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. UTILITY
The UTILITY output appears on a phone jack socket, suitable for additional MONO output use.
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. ZONE 1/ ZONE 2
The stereo paging zone outputs include L, R channels and SUB channel for better low frequency performance.
While operating in mono mode, use the L channel.