6
Installation and Trim
The ISK4 Camera Door Station installs in a standard double-gang UL/CSA-approved plastic wall
box with an internal volume of at least 32 cubic inches (524 cm
3
). Its gasketed weather-
resistant front plate protects the internal components from the elements.
Since the camera angle can be adjusted to place visitors within the fi eld of view, the ISK4 can
be positioned to the left or right of the door. However, if the camera is facing toward the sun or
a bright light, the picture may be severely degraded. For best results, avoid aiming the camera
toward sources of intense light.
Prewiring
For the intercom connection, run a separate CAT-5 cable from the ComPoint hub to each door
station. If you’re installing optional ISDR1 Door Strike Release Modules, loop the CAT-5 cables
through the module locations.
To use a separate doorbell system instead of the doorbell built into the ComPoint system, run a
2-conductor cable from each door station to the doorbell system.
To support the ISK4 camera, you can use either of two cabling methods:
1. A single CAT-5 cable for both video signal and power, with Russound MOD-VB baluns and
a BNC-to-RCA adapter for the video signal. This method has the advantage of balancing
the video signal, allowing it to be transmitted along with power up to 1000 feet (305 m).*
2. An RG-59 cable for the video signal and a 2-conductor cable for power. This is the more
conventional method, but video transmission is limited to shorter distances.
*This applies only to the camera power and signal cable. The intercom cable has a length limit
of 250 feet (76 m).
Note:
When running low-voltage cables, avoid running them near AC power wiring as much as
possible. If you have to run the cables parallel to electrical wiring, space the cables at least 12
inches (30 cm) from the AC power lines.
