Using Utp To Transmit Video And Control - Bosch VG4-A-PSU0 Installation Manual

26 en | Cable and Wire Standards
3.3.2

Using UTP to Transmit Video and Control

Unshielded twisted pair (UTP) cable terminated with RJ45 male
connectors are used to transmit composite video using pins
1(+) and 2(-). Typically, a Coax to UTP cable converter is
required at the head-end of the system.
Bilinx control data can also be sent over the same two video
wires (1 & 2). Bilinx is a Bosch 2-way communication protocol
that allows remote control, configuration and updates over a
passive UTP cable.
VG5 100 and 600 Series AutoDomes feature cable
compensation or "Pre-Comp," which extends the normal range
of control from the head end.
WARNING!
Do not connect the RJ45 connector unless using UTP video.
Cable Compensation
Cable Type
CAT5 UTP
Terminal Connector
Requirement
The following figure illustrates the connections necessary to
transmit video and control over a UTP cable.
Figure 3.1 Video and Control over UTP
1
2
F.01U.250.895 | 1.0 | 2011.08
Head End Video
Coax
Installation Guide
AutoDome Power Supply Boxes
Maximum Distance
Pre-comp OFF
229 m (750 ft)
RJ45
Coax to UTP Converter
+
-
3 Pins
4 AutoDome
Pre-comp ON
450 m (1500 ft)
Bosch Security Systems, Inc.
1(+) &
RJ4