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15
VAD-2 Plus Installation and Operation Manual
SPECIFICATIONS
Specifications
Control Logic:
Flash Microprocessor with non-volatile memory
Relays:
Two – SPDT Contacts, 30 Vdc @ 1 Amp.
CAUTION! For safety, never connect 120 Vac circuits to these relays!
Status inputs:
Optically Isolated, RFI protection. Internal jumper for (wet)
external 5 to 24 VDC (higher voltages with external resis-
tor) or internal 5 VDC source (dry). Open collector, contact
closures to ground or external source.
Power Failure Input:
5 to 12 volts DC at 6 ma (user supplied).
Temperature Sensor (optional): Sensor with 25-foot cable and 3.5mm T/R/S plug.
-40°F to +190°F (-40°C to +85°C)
Stereo Silence Sensor:
Stereo unbalanced 10K ohm inputs. Trip level -20dBu.
Silence sensor level to Telco adjustable.
Balanced caller audio output:
0 dbu @ 100 ohms. Gain may be changed to increase output.
Telephone Line Connector:
RJ-11. Cable supplied. Fused and surge protected
Program TT Phone Connector: RJ-11. Talk battery provided.
Connectors:
Plug-in euroblock screw terminals for status inputs, relays,
power failure input, external 5 volt regulated power output,
balanced telco audio output and stereo unbalanced silence
sensor inputs.
FCC Information:
Complies with FCC parts 15 & 68.
Power:
12 Vac @ 1 amp. 2.1mm coaxial jack. Surge protected.
120 vac 60Hz wall transformer supplied.
External Power output:
Regulated 5 volt DC@100ma Max.
Size:
4.20” x 6.00” x 1.55”, Painted chassis w/ 4 – 6-32
mounting holes
Weight:
2.0 lb.
Options:
RA-1, Rack Shelf. 1 RU. (Holds four VAD-2 Pluses).
CE 220 Vac Wall transformer.
TempSensor, Temperature Sensor.
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