HOW TO CABLE THE ATU-2
Connect the video cable you wish to use from the camera to
the "VIDEO IN" BNC connector and connect the cable going to the
ARU-2 to the "VIDEO OUT" BNC connector. It is not necessary for
power to be on at this time, the video path will only be
interrupted during the cable attachment. This system will function
with video from any kind of CCTV camera or any NTSC professional
video. Next attach the alarm or control wires for each station to
the green connector block marked A and B. Each pair of screw
terminals marked A and B are LOOP inputs. Attach your Dry Contact
Closures to these screw terminals. The current for loop sensing is
built into the ATU-2. Do not connect TTL signals to these
connections.
HOW TO CABLE THE ARU-2
Connect the video cable you are using to the "VIDEO IN" BNC
on the ARU-2 and the "VIDEO OUT" BNC goes to the monitor, recorder
or other video equipment.
BE SURE TO TERMINATE THE END OF THE
VIDEO CABLE WITH A 75 OHM TERMINATION OR PROPERLY TERMINATED INTO
OTHER EQUIPMENT.
Next attach the alarm or control wires for each
station to the green connector block marked A and B. These wire
can go to your alarm panel or control device. Each pair of screw
terminals marked A and B are relay contact closures. The outputs
from connector block A and B will duplicate the signals from the
ATU-2 inputs. A contact closure at A of the ATU-2 will result in a
contact closure at A of the ARU-2 and so on.
POWER SUPPLY INSTALLATION
The ATU-2 and ARU-2 are powered by two 24 Volt AC or DC wall
mount power transformers (24VAC included). Connect the 24 VAC
power transformer to the Green terminal block marked 24V AC/DC.
The ATU-2 can be powered by power sources as low as 9 volts AC or
DC. However the ARU-2 must be operated with 24 Volts AC or DC.
At this time you will see the Green LED turn on to indicated
power up, it will be on or be flashing on and off, depending on
the video status. Power on with no video will cause the LED to
light up and flash on and off. Power on with video input will
cause the LED to light up fully.
ATU-2.ISB
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