MOUNTING INSTRUCTIONS
The rugged one-piece mounting structure allows you to mount the
unit firmly in place with two screws. Select a place to mount the unit
away from harsh or wet environments, indoors is recommended. The ATU-
2HD should be located near your originating contact signals and the
ARU-2HD should be near your alarm panel or the place you wish to bring
the relay signals to. Select a position that gives you the best access
to cable the system and one that reduces the labor in installation.
HOW TO CABLE THE ATU-2HD
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-2HD 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 HD-TVI, HD-CVI, AHD, CVBS,
NTSC, and PAL video types. 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 or switches to these screw terminals. The current for loop
sensing is built into the ATU-2HD. Do not connect TTL signals to these
connectors.
HOW TO CABLE THE ARU-2HD
Connect the video cable you are using to the "VIDEO IN" BNC on the
ARU-2HD 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 relay output wires can go to your
alarm panel or control device. Each pair of screw terminals marked A
and B are relay contact closures outputs. The outputs from connector
block A and B will duplicate the input signals from the ATU-2HD inputs.
A contact closure at A of the ATU-2HD will result in a contact closure
at A of the ARU-2HD and the same for the B channel.
POWER SUPPLY INSTALLATION
The ATU-2HD and ARU-2HD are powered by two 12 Volt AC or DC wall
mount power transformers, 12VDC are included with the units. Connect
the 12 VDC power transformer to the Green terminal block marked 12VDC.
The ATU-2HD can be powered by power sources as low as 9 volts AC or DC.
However, the ARU-2HD must be operated with 12 Volts AC or DC.
Connect the power source and you will see the Green LED turn on to
indicated power up, it will be on, or it will 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-2HDisb
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