Installation manual

For more information call your Leviton representative or the Leviton Technical Hotline at 800-722-2082
6
DESCRIPTION
of Leviton
Integrated
Systems
6-5
© Copyright 2001 Leviton Manufacturing Co., Inc.
6.3.3 Wallplates, Jacks, and Connections
The variety of terminating connectors, jacks, and
wallplates, the small, but critical components of any
system infrastructure, will be discussed in section 8.
You have a choice of 1, 2, 3, 4, or even 6 position
QuickPort or Decora style wallplates along with
Category 5 or 5e jack, F-Connector, audio binding
post, and blank snap-in inserts. You can order the
wallplates and snap-in inserts in white, almond, or
ivory colors.
Installer’s Tip: For both basic and enhanced infra-
structure, Leviton recommends a minimum of
Category 5 or 5e twisted-pair cable for telephone and
data, RG-6 quad shield coaxial cable for video cable,
CATV, TV, DSS, and monitoring, and 16/2 or better
class 2 stranded copper for speakers.
6.4 Distributed Video (CATV, DSS,
other Services)
You have several options for distributing video service
to more than one location:
1. Install a video splitter with or without a separate
video amplifier (depending on signal level available)
2. Install a module that includes an amplifier (3X8 Bi-
Directional Video Module)
6.4.1 Passive Video Splitters
Leviton’s video splitters (1X4, 1X6, and 1X8) are basic
passive video distribution units. Depending on your
specific job, one of these splitters on its own may not
be sufficient to serve all of its intended devices with
picture-clear reception. Several factors will affect
reception, including:
• The number of devices being served by the incoming
coax cable (the rule of thumb is that the more cable
locations, or drops, the greater the losses).
• The type and quality of the cable
• The quality of the local cable signal
• The quality and workmanship of the connectorization
of the cable
• The overall length of the cable runs (locations at the
far end of the home may suffer from line losses).
Please see the Splitter Signal Loss Chart in Table 6.4.
You should be aware that the CATV signal level deliv-
ered to the house will be between 0dBmV and
15dBmV. You can calculate the signal level based on a
loss budget calculation as follows:
Total Cable Loss = (Loss in dB/100 Ft @ Highest
Frequency to be Transported) X (Cable Length) X (.01)
Total System Loss = Total Cable Loss (above calcula-
tion) + Splitter Loss (from table 6.4)
It may be necessary to install a separate Video
Amplifier to strengthen the video signal. This amplifier
features:
• A variable attenuator for accurate level setting and
the clearest signal possible
• A boosting of signal strength up to 25 dB
• FM Trap (FM signals not amplified)
Installer’s Tip: Be sure to thoroughly discuss video and
TV options with your customer. You do not want to be
explaining poor or unacceptable picture quality at the
end of an installation because of a poor wiring or com-
ponent choice.
6.4.2 Satellite Signal Distribution
The 3X4 Multi-Switch uses multiple inputs to distribute
satellite and TV antenna signals throuhout the home. By
combining signals from dual incoming LNB (low noise
block) digital satellite systems, and with transmission
from an off-air antenna on a single coaxial cable, it can
distribute signals to up to four TV’s. The Multi-Switch
incorporates a separate input to receive TV antenna
signals which is best used in combination with a video
amplifier.
6.4.3 Modules with Built-in Amplifiers
The 3X8 Bi-Directional
Video Module sup-
ports bi-directional
signaling.
Frequency Channel Insertion Loss (dB)
Range
1 X 4 1 X 6 1 X 8
50 MHz 2 through -6.6 -8.9 -10.0
1000 MHz 140 -7.3 -10.0 -11.0
950 MHz Digital Cable -7.7 -11.0 -11.9
2000 MHz Channels -10.5 -14.0 -15.7