Bosch VG5 600 Series, Руководство по установке

Страница: 68 / 88

68 en | Cable and Wire Standards AutoDome 600 Series Analog PTZ Camera
F.01U.265.793 | 2.0 | 2012.02 Installation Manual Bosch Security Systems, Inc.
5.3.2 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 Series AutoDomes feature cable compensation or “Pre-Comp,” which extends the normal
range of control from the head end.
The following figure illustrates the connections necessary to transmit video and control over a
UTP cable.
Figure 5.1 Video and Control over UTP
Size O.D. between 4.6 mm (0.181 in.) and 7.9 mm (0.312 in.)
Shield Copper braid: 95%
Central Conductor Standard copper center
Terminal Connector BNC
Cable Compensation Maximum Distances
Video Only Bilinx Control
WARNING!
Cable compensation (Pre-Comp) does not extend the range of Bilinx control. Pre-Comp is not
available with VG5 700 Series AutoDomes.
WARNING!
Do not connect the RJ45 connector unless using UTP video.
Cable Compensation
Maximum Distance
Cable Type Pre-comp OFF Pre-comp ON
CAT5 UTP 229 m (750 ft) 450 m (1500 ft)
Terminal Connector RJ45
Requirement Coax to UTP Converter
1 Head End Video 3 Pins
2 Coax 4 AutoDome
+
-
1(+) & 2(-)
RJ45