Dipswitch selection of silence detection threshold of -20, -25, -30 and -35dB below zero dBu reference. -Stereo LED audio level display. -“External Ext” alarm trigger input with front panel LED indicator. -Front Panel Power/Heartbeat LED. -Dipswitch selection of reverse polarity (out of phase) detection. -Dipswitch selection of alarm time delay from OFF to 8 minutes, 30 seconds in 2 second increments or 85 minutes in 20 second increments . . .

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Dipswitch selection of silence detection threshold of -20, -25, -30 and -35dB below zero dBu reference.
-Stereo LED audio level display.
-“External Ext” alarm trigger input with front panel LED indicator.
-Front Panel Power/Heartbeat LED.
-Dipswitch selection of reverse polarity (out of phase) detection.
-Dipswitch selection of alarm time delay from OFF to 8 minutes, 30 seconds in 2 second increments or 85 minutes in 20 second increments.
-Dipswitch selection of restore timing delay from OFF to 10 minutes and 20 seconds in 20 second increments.
-Two independent SPDT alarm relays and LED indicators.
-Two pulse open collector alarm outputs.
-Logic functions via microprocessor and non-volatile memory.
-Plug-in euro-block screw terminals, mating plugs supplied.
-Fully RFI proofed.
-Surge protected internal power supply, PS-1515 universal switching +/-15VDC power supply with domestic connectors supplied.
International AC connectors optional.

Each unit may be set on a desktop, mounted on a wall or rack-mounted with the optional RA-1 rack shelf for mounting up to two units in 1-RU

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