Preparing The Wiring; Control; Video; Power - Bosch VEZ Series Installation And Configuration Manual

4

Preparing the Wiring

4 Preparing the Wiring
There are four (4) types of wires required: control, video, power, and alarm. Each section pro-
vides the specifications for the recommended wire.
CAUTION! Installation should only be performed by qualified service personnel in accordance
!
with the National Electrical Code or applicable local codes.
4.1

Control

The control wire from the head end should use a twisted-shielded pair recommended Belden
8760 or equivalent with a maximum length of 1.2 km (4000 ft).
Biphase (shielded 2-wire, half-duplex, multi-drop, 1.2 km (4000 ft.) cable limit), is the stan-
dard Bosch protocol used to send Pan/Tilt/Zoom control over 2-wire shielded twisted pair
(STP). The AutoDome Easy has an internal 110 Ω termination resistor between the biphase(+)
and biphase(-).
The shield connects to the Head End controller and not to theAutoDome Easy.
CAUTION! The biphase shield must be connected to the head end only.
!
Description
Cable Type
Distance
Transmission Rate
Gage
Internal Termination
Connector
Voltage
4.2

Video

The video coax cable should use a shield coverage copper braid 95% and standard copper
center conductor. Recommended cables are RG-59, RG-6/U, or RG-11U.
Cable Type
RG-59/U
RG-6/U
RG-11/U
Size
Shield
Central Conductor
Terminal Connector
4.3

Power

The recommended power cable is a 2-conductor, 14-18 gage cable, depending on the dis-
tance. Refer to the wiring distance guide Table 4.1 on page 5.
24 VAC to AutoDome Easy
12 VD C to AutoDome Easy
December 06, 2006 | F01U074570 | 3.0
Specification
STP - Shielded Twisted Pair Belden 8760 recommended
1.2 km (4000 ft)
31.25 KHz
1.02 mm (18 AWG)
110 Ω
Mating connector with flying leads
4 Vp-p
Maximum Distance
300 m (1000 ft)
450 m (1500 ft)
600 m (2000 ft)
O.D. between 4.6 mm (0.181 in.) and 7.9 mm (0.312 in.)
Copper braid: 95%
Standard copper center
BNC
VA / Watts 14 AWG (2.5 mm)
10 W
10 W
Installation and Configuration Manual
16 AWG (1.5 mm)
1130 ft(344 m) 711 ft (217 m)
285 ft (87 m) 179 ft (55 m)
Bosch Security Systems, Inc.
AutoDome Easy
18 AWG (1.0 mm)
448 ft (137 m)
112 ft (34 m)