SET-UP OF THE ATU-2HD AND ARU-2HD
Both units can operate on a maximum of 4 separate line channels
allowing up to four sets of ATU/ARU-2HD units to be used on any HD-TVI,
HD-CVI, or AHD video source and on CVBS, NTSC, and PAL up to a maximum
of two sets of ATU/ARU-2HD units can be used due to the limited number
of lines (see the table on page 5). The units are shipped on the
standard channel 1 for HD-TVI 720P (25fps) video format. If you wish to
use the units on a different channel or wish to operate more than one
unit on the same video signal, then it is necessary to program the new
channel using the DIP switch on the PC Board.
Programming a new channel is done with switch 1-2 of the 8
position DIP switch on the inside of the box. Open the box by removing
the 4 screws in the outer most corners of the box. Open the lid and
look for the Blue 8 position DIP switch.
The first 2 switches 1-2 are for line selection, switches 3-7 are
for selecting the video mode or type of video, switch 8 is not used.
Select the channel you wish to operate on 1-2 and select the video
format using switch numbers 3-7. You must select the same channel and
video format for both ATU-2HD and ARU-2HD so they will work together.
As many as 4 ATU-2HD and ARU-2HD units can be used on the same
video signal by programming them to different channels. When the ARU-
2HD is on the same channel as an ATU-2HD with the power applied and the
video on the Green LED on both units will stop flashing and stay on.
This indicates that the video is being received.
OPERATION
When the units have been installed and programmed for the correct
video source you will see that when a contact on the ATU-2HD is closed
a relay in the ARU-2HD closes in response. Through the video\data path
the contact sense is relayed to the alarm panel or other equipment
directly. If the power on the equipment is remove or turned off the
video path will not be obstructed by either the ATU-2HD or ARU-2HD
units.
If the power is turned off on the ARU-2HD then both relays will
open regardless of the position of the ATU-2HD input contacts. If a
system alarm is desired to indicate a loss of communication between the
ATU-2HD and the ARU-2HD, one of the contacts at the ATU-2HD can be
wired closed then that contact will serve as a system alarm channel.
This contact will open if power is turned off on either unit or if the
video path between the two units is interrupted.
CARE AND MAINTENANCE
There is no routine maintenance or calibration required with this
equipment. There are no adjustments required inside the box. Open the
box only to choose the desired operating channel and video mode.
ATU-2HDisb
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