Installation manual

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© Copyright 2001 Leviton Manufacturing Co., Inc.
Installation Manual
7
SYSTEM
DESIGN
System Design
and Placement
Laying Out the
Basics
7-10
Installer’s Tip: An audio system’s performance is
determined in part by the amount of resistance in its
speaker- amplifier circuit, which consists of the
speaker inputs, amplifier outputs, and the wire
between them. Generally, this resistance—also
known as impedance—rises as the distance between
the amplifier and speaker increases, and becomes a
real factor in multi-room audio distribution. Be sure to
follow the speaker manufacturer’s guidelines for wire
gauge (this will be affected, in part, by the distance
between the speaker and the amplifier) and the ampli-
fier manufacturer’s recommendations for acceptable
impedance loads. Too small of a gauge will result in
substandard speaker performance.
7.4.5 Infrared (IR) Remote Control Target and
Emitter Cable
Connect Infrared components with additional runs of
Category 5 or 5e cable to each IR target and IR emit-
ter location.
7.4.6 High-Speed Optical Fiber Cable
Although this manual does not deal directly with high-
speed optical fiber cable, we recognize that an installer
might be asked to install it as a primary system or as an
addition to an existing one. Optical fiber converts elec-
trical video/data/voice signals into pulses of light that
are then beamed through a thin glass cable. The
advantages to optical fiber cable include:
• Noise immunity (it is not affected by electromagnetic
induction or EMI)
• Low signal loss
• No short circuits as it does not carry an electrical
current
• The ability to carry more data, faster, with much high-
er bandwidth, than copper
The TIA-568-A standard recognizes two fiber optic
cables:
• 62.5/125mm multimode optical fiber
• 9/125mm singlemode optical fiber
Multiple Targets & Emitters Using Bridge
DC POWER SUPPLY MODULE
Note:
Wired over Category 5 or 5e cable
power leads connected to Brown
pair for + and Green pair for - ,
Orange leads (cat 5/5e) used for
signal. Blue wire is not used.
1X9 Telephone Block
QUICKPORT
RJ-45
RJ-45
RJ-45
EMITTER
AC ADAPTOR
QUICKPORT
RJ-45
CAT5
CAT5
EMITTER
BL OR GR BR
BL OR GR BR
1
2
3
4
5
6
7
8
9
10
1 2 3 4
1 2 3 4
RED
BLACK
YELLOW
WHITE (NC)
TARGET
Cat 5
-
+
Cat 5BROWN
GREEN
ORANGE
TARGET
RED
BLACK
YELLOW
WHITE (NC)
Cat 5 Wire Colors
Pair 4
Pair 3
Pair 2
Pair 1
Blue/White
Blue
Orange/White
Orange
Green/White
Green
Brown/White
Brown
(Strip &
Tin Leads)
O
RANG
E
BROW
N
GREEN