Nitek CX452 - Manual (Page 4)

4
UTPLinks INTERMEDIATE POWER DISTRIBUTION
In a system, equipment is often spread out over a large
facility and the communications backbone of that facility is used for
the routing of the video and data signals. Power is inserted at the
IDF (Telco closet) located closer to the camera end.
Starting at the camera end, there are several UTPLinks
transmitter units available, only one is shown here. These units
allow the video, power and data to be separated out and fed into
standard CCTV cameras.
From the transmitter there is a standard 4 pair Category
cable run back to a patch panel in the IDF, up to 100 meters away
(TIA/EIA standards). For fixed cameras 24awg Cat 5 network
cabling is fine, but for PTZ cameras 23awg Cat 5 or Cat 6 cable
should be used. From the patch panel each camera is sent to the
Crossover unit. The Crossover unit provides a central point for the
combining of the power, data and video signals. Each camera port
is fused and lights on each of the front panel RJ45 jacks show the
status of both power and data.
Power for the system is provided by a Power Supply unit
mounted near the Crossover unit. It connects to the Crossover unit
via snap in jumper cables that can be installed in seconds.
Video from and data to the cameras is routed through the
RJ45 jacks on the rear of the CX452 unit. Signals are routed over a
facilities backbone communication cable to the MDF (main Telcom
center). From the MDF they can be rerouted to the security room.
In the security room these signals are taken back off of the
backbone and put into NITEK video receiver units. Once they are
decoded in the receiver units these video signals are fed out BNC
jacks for connection into standard CCTV equipment. In our current
example, a DVR is viewed on a monitor. It could have been a
matrix, multiplexer or any other equipment needed for your
application.