Power failure alarm input port. - Balanced telco caller audio output port. - Front panel LED indicators for most operational activities. - Front panel USB programming serial port, program switch with LED indicator. - Front panel RJ-11 TT telephone jack used for user voice response recording. - Local programming and recording. The VAD-4 is supplied with spoken words and phases in English, while the user is free to record words and phrases in . . .

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Power failure alarm input port.
– Balanced telco caller audio output port.
– Front panel LED indicators for most operational activities.
– Front panel USB programming serial port, program switch with LED indicator.
– Front panel RJ-11 TT telephone jack used for user voice response recording.
– Local programming and recording. The VAD-4 is supplied with spoken words and phases in English, while the user is free to record words and phrases in their language.
– Stores up to four 32-digit phone numbers and one 32-digit pager number with up to 16 digits of pager data.
– CPC (WINK/COD) detection.
– Non-Volatile Memory.
– User programmable message repeat and global lap counter.
– User programmable ring delay.
– Phone line and power supply with built-in surge protection.
– 12 volt DC universal AC input wall transformer. Optional international AC plug adapters available.
– Plug-in euroblock screw terminals for status inputs, relays, telco audio balanced output and stereo silence sensor input.
– Three units may be installed on one RA-1, RU-1 rack shelf.

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