18
en | Installation
KBE and KBN Series
F01U078718 | 2.0 | 2008.01
Instruction Manual
Bosch Security Systems, Inc.
5.
Seal the hole in the mounting foot of the camera housing
with RTV or an equivalent seal. If a fitting was used in the
mounting foot, apply the seal around the UTP cable before
tightening the fitting to prevent slippage.
6.
Attach the housing to the mount in accordance with the
KBE and KBN Series Instruction Manual.
4.6.2
Wiring Do’s
1.
Use point to point unshielded twisted pair wire, 24 AWG or
thicker, stranded or solid, Category 2, 3, 4, or 5.
2.
The video signal may coexist in the same wire bundle as
other video, telephone, data, control signals, or low
voltage power.
3.
Measure the wire distance. Use only receivers designed for
that distance.
4.
Make sure the pair of wires carrying the video signal is sent
as a twisted pair, not a split pair.
4.6.3
Wiring Don’ts
1.
DO NOT USE SHIELDED TWISTED PAIR WIRE, as this will
severely degrade the distance performance. Short runs
may be used with some signal degradation. Multi-pair wire
with an overall shield is OK.
2.
DO NOT USE UNTWISTED WIRE, as this will reduce the
inherent immunity to interference.
3.
DO NOT allow your installation to have bridge / taps,
loading coils, talk-battery, or MOV type protectors. Bridge
taps refer to a twisted pair connected to two twisted pairs
(such as an extension phone). Bridge taps cause
reflections as the signal propagates, resulting in ghosts in
the image.
4.
If the phone company is providing the cable runs between
buildings, make sure it is dry copper (i.e. it should have
none of the following: dial tone, 48 V, loading coils, bridge
taps, switching, or long paths to the phone company's
central office and back).
5.
Due to near-end cross talk, DO NOT send a transmit and
receive signal in the same wire bundle. Exceptions: Less
Summary of Contents for KBE-335V28-20
Page 1: ...KBE and KBN Series Prepackaged Cameras en Instruction Manual ...
Page 2: ......
Page 35: ......
