Description
ATU-8/ARU-8
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Part Number: ATU-8/ARU-8
Title: Analog Alarm Transmitter/Receiver Set
Category:Base Band Video Products
Industry:CCTV, TV/Radio Broadcast, CATV Cable Industry
Description
The ATU-8/ARU-8 devices will transmit contact relay control and alarm signals over any analog video link. The signal is encoded in the vertical interval of the video, so it will pass through all video equipment. This equipment will work in either directions or both directions at the same time.
Contact closures on the ATU-8 input will be repeated as contact closures at the ARU-8 output. This system uses one active vertical interval line to transmit the contact information and it is field programmable from lines 20 to 25.
The ATU-8 ALARM TRANSMITTING UNIT and the ARU-8 ALARM RECEIVING UNIT together make up an 8 channel alarm and control system. The transmitter inserts the contact information onto the video signal and it will be recorded as part of the video signal so contact information can be retrived apon playback.
A system alarm contact will operate upon loss of power to either terminal or loss of transmission path (video link failure). An internal video sync generator takes over and maintains continuous alarm system operation in the event of video signal failure.
If this product page shows “out of stock” the product is in production and can be purchased with a lead time of 1-2 weeks or less depending on quantity. To place an order for this product call 1-800-235-6960 and ask for the sales department. Or E-Mail your order to fmsystemsinc@sbcglobal.net. Most orders ship within a few days.
ATU-8 ALARM TRANSMITTING UNIT
ALARM INPUT
Channels, 8 Channels (Contact Loop)
Connectors, 20 Pos. Screw Terminal
Alarm Sense, Contact closure (Loop)
Maximum Loop Resistance, 1K ohm
VIDEO INPUT
Standard, NTSC (Color or B/W)
No Video, Internal Video Generator
Impedance, 75 Ohm
Connector, BNC (female)
VIDEO OUTPUT
S/N Ratio, 80 dB (NTSC-7 Weighting)
Differential Gain, Less Than 0.3%
Differential Phase, Less Than 0.3 deg.
MECHANICAL
Size, 5.50″L X 4.3″W X 3.0″D
Power, 24 VAC 400 mA
ARU-8 ALARM RECEIVING UNIT
ALARM OUTPUT
Channels, 8 Channels (Relay Output)
Connectors, 20 Pos. Screw Terminal
Alarm Report, A Form Relay 1Amp 24VDC
VIDEO INPUT
Standard, NTSC (Color or B/W)
Impedance, 75 Ohm
Connector, BNC (female)
VIDEO OUTPUT
S/N Ratio, 80 dB (NTSC-7 Weighting)
Differential Gain, Less Than 0.3%
Differential Phase, Less Than 0.3 deg.
MECHANICAL
Size, 5.50″L x 4.3″W x 3.0″D
Power, 24 VAC 400 mA
