Crestron CAT5 Wiring
Reference Guide
This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
All brand names, product names and trademarks are the property of their respective owners.
©2004 Crestron Electronics, Inc.
Crestron CAT5 Wiring Reference Guide
Contents
Crestron CAT5 Wiring 1
Introduction ...............................................................................................................................1
Electrical Measurements of CAT5E Wiring..............................................................................2
Installation Notes.......................................................................................................................2
CAT5 Pin and Color Specifications...........................................................................................3
CAT5 Cable Pairs.............................................................................................................3
CAT5 Wiring EIA Specification TIA-568B.....................................................................4
CAT5 Wiring EIA Specification TIA-568A.....................................................................4
Audio Applications....................................................................................................................5
CNXRMCLV Balanced Audio Connector .......................................................................5
CNX-BIPAD8 Balanced Audio Connector ......................................................................5
TPS-IMC-BV Balanced Audio Connector .......................................................................6
TPS-IMPC Balanced Audio Connector............................................................................6
TPS-IMW Audio Connector.............................................................................................6
TPS-2000L Balanced Audio Connector ...........................................................................7
TPS-3000L/3100L/4000L Balanced Audio Connector.....................................................7
TPS-3000L/TPS-3100L/4000L Unbalanced Audio Connector........................................7
C2N-DAP8 and C2N-DAP8RC Balanced Audio Connector ...........................................8
C2N-TXM Audio Out Connector.....................................................................................8
Balanced Audio Cable from CNXRMCLV to TPS-IMC, TPS-IMC-BV, & TPS-IMW.9
Mic Cable Wiring from TPS-IMC, TPS-IMC-BV, & TPS-IMW to CNXRMCLV.......10
Balanced Audio Connection from CNX-BIPAD8 to TPS-2000L..................................11
Balanced Audio Connections from TPS-IMC-BV to CNX-BIPAD8 (Mic and Audio).12
Audio from C2N-DAP8RC to CNXRMCLV.................................................................13
Audio from CNXRMCLV to C2N-DAP8......................................................................14
Audio from CNX-BIPAD8 to C2N-DAP8.....................................................................15
Audio and Mic Connections from TPS-IMC-BV to CNXRMCLV................................16
Audio and Mic Connections to Touchpanel Direct from CNXRMCLV ........................17
Audio Output from C2N-TXM to CNX-BIPAD8..........................................................17
Balanced and Unbalanced Audio and Video Applications......................................................18
Balanced Audio and Balanced Video from CNXRMCLV to TPS-2000L...................... 18
Unbalanced Audio Input, Video Input, and MIC Output for a TPS-2000L....................20
Balanced Video Applications ..................................................................................................21
CNXRMCLV Balanced Input and Output Video Connectors........................................21
CNX-PVID8 Balanced Video Connector.......................................................................21
TPS-IMW NET/Video Connector..................................................................................22
TPS-IMC-BV Balanced Video Connector......................................................................22
TPS-2000L Video and Audio Connector........................................................................22
TPS-3000L/TPS-3100L/4000L NTSC/PAL Balanced Video Input Connector .............23
CNXRMC Balanced Video Input Connector..................................................................23
Balanced Video From CNX-PVID8 to C2N-DAP8RC..................................................24
Balanced Video From C2N-DAP8RC to CNX-PBVR4.................................................25
Balanced Composite Video from CNX-PVID to TPS-2000L.......................................26
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Reference Guide Crestron CAT5 Wiring
Balanced Composite Video from CNX-PVID to TPS-IMC-BV ...................................27
Balanced S-Video from CNX-PVID to TPS-IMC-BV...................................................28
C2N-TFM and C2N-TTVFM AM Radio Port.........................................................................29
C2N-TAMWX AM/Weather Band Tuner...............................................................................29
C2N-IIF Intercom Interface.....................................................................................................30
Audio Connections from C2N-IIF to C2N-IADS30X24 Intercom Audio Distribution
System.............................................................................................................................31
Video Connections from C2N-IIF to C2N-IVDS24X24 Intercom Video Distribution
System.............................................................................................................................32
Video Connections from C2N-IIF to CNX-PBVR4 Professional Balanced Video
Receiver..........................................................................................................................33
Audio Connections from C2N-IIF to CNX-PBAR4 Professional Balanced Audio
Receiver..........................................................................................................................34
C2N-IVDS24X24 Intercom Video Distribution System .........................................................35
C2N-IVDS Video to TPS-IMC-BV Touchpanel Interface.............................................36
C2N-IADS30x24 Intercom Audio Distribution System..........................................................37
C2N-IADS Audio to TPS-IMC-BV Touchpanel Interface.............................................38
C2N-IADS Audio to CNX-BIPAD8 Audio Distribution Processor...............................39
C2N-NPA8 Poll Accelerator LAN Connector.........................................................................40
The QuickMedia Transport System.........................................................................................40
Crestron Certified Wire and Cable...........................................................................................43
Further Inquiries ......................................................................................................................45
Glossary...................................................................................................................................46
References................................................................................................................................47
ii • Contents Crestron CAT5 Wiring - DOC. 6137A
Crestron CAT5 Wiring Reference Guide
Crestron CAT5 Wiring
Introduction
Category 5 (CAT5) wiring is a twisted pair cable designed for Ethernet networks.
These networks operate at speeds of up to 100 Megabits per second (Mbps) using the
100baseT standard. Crestron® takes advantage of this specification for a variety of
audio and video applications. This document contains basic CAT5 information and
specific wiring connections for Crestron audio and video CAT5 devices.
The term “Category” refers to the classifications of UTP (unshielded twisted pair)
cables. The differences in the classification of the cables are their electrical
performance criteria. ANSI/EIA (American National Standards Institute/Electronic
Industries Association) Standard 568 is one of several standards that specify these
categories of twisted pair cabling systems, which includes wires, junctions, cable
material and connectors, in terms of the data rates that they can sustain. There are
currently three main Categories of cable - Category 3, Category 4, and Category 5.
• Category 3 = Rated to 16 MHz (used for Ethernet 10BaseT)
• Category 4 = Rated to 20 MHz (used for Token-Ring, 10BaseT)
• Category 5 = Rated to 100 MHz (used for 100BaseT , 10 B a seT)
Under the 10BaseT/100BaseT (twisted pair) standard, the distance between
connected components cannot exceed 328 feet (100 meters).
In large Ethernet configurations, Crestron recommends the use of a hub or switch for
signal distribution. Generally, in a hub system every device must have a separate
wire returning to a central point.
CAT5 wire is typically four pairs of 24AWG solid copper wires, with each pair
twisted about three times per inch. It can be supplied with or without a foil shield,
and with various outer insulation materials.
CAT5E (enhanced) is essentially the same as CAT5, however it is made to higher
electrical standards.
NOTE: Special plenum cable is required if you are running the wire in heating
system plenums or in certain commercial settings.
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Reference Guide Crestron CAT5 Wiring
Electrical Measurements of CAT5E Wiring
The specifications for CAT5E wiring can vary within a range as specified by
TIA/EIA. These specifications depend on the kind of connections (permanent,
patchcords, etc.), the length of cable run, and the type of termination connectors. The
following are a list of measurements that are made on CAT5E cables.
• Attenuation is a measure of signal loss from one end of a cable to the
other, and is measured in each pair of wires.
• NEXT (Near End Cross Talk) is a measurement of noise that is coupled
from an adjacent pair of wires, usually the receiving pair and the
transmitting pair. NEXT is measured for all pair combinations.
• PSNEXT (Power Sum NEXT) is the measurement of one pair while all the
other pairs are in use. This calculation is made for each pair in the cable.
• Delay Skew (Propagation Delay) is the measurement of signal speed
through the wires. All the wires of the cable are fed the same signal
simultaneously. The time difference at the receiving end of each wire is
measured, and the shortest time is subtracted from the longest time.
Installation Notes
• FEXT (Far End Cross Talk) is measured by transmitting on one pair and
measuring cross talk on an adjacent pair at the far end of the cable.
• ELFEXT (Equal Level Far End Cross Talk) is FEXT minus Attenuation.
• PSELFEXT (Power Sum ELFEXT) uses all wires in the cable.
• ACR (Attenuation to Cross Talk Ratio) is a measurement of the ratio of
signal to noise and reveals the bandwidth of the cable. It is derived by the
difference between NEXT and Attenuation.
• Never pull CAT5 wire with excessive force. The CAT5 tension limitation is
25 lbs, much lower than standard audio/video cable.
• Never step on or crush, kink, or crimp CAT5.
• Avoid periodic sags; vary the intervals if the cable must sag.
• Do not bend CAT5 wire tightly around a corner; ensure that it bends
gradually, so that a whole circle would be at least two inches in diameter.
• Do not allow knots or kinks, even temporarily.
• When using conduit, do not fill to more than 40% if using more than two
cables (National Electrical Code, Chapter 9, Table 1).
• Never untwist the two wires in a single pair for more than 1/3-1/2"
(0.84 – 1.27 cm) when making a connection (the twists are critical to
canceling out interference between the wires).
• Never run CAT5 parallel to power wiring closer than six inches.
• Avoid splices. Every splice degrades the line.
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Crestron CAT5 Wiring Reference Guide
CAT5 Pin and Color Specifications
There are two standards for CAT5 wiring, TIA-568B and TIA-568A.
TIA-568B is a straight-through connection. The signals on pins 1 through 8 are
identical on both ends of the cable.
TIA-568A is a straight-through connection. The signals on pins 1 through 8 are
identical on both ends of the cable. However, the orange and green pairs of wires
exchange pair numbers and are connected to different pins than TIA-568B.
NOTE: To determine which pin is number 1, hold the cable so that the end of the
eight pin modular plug is facing toward you, with clip down and copper side up.
When looking down at the copper connections, pin 1 will be on the far right.
NOTE: Do not confuse pair numbers with pin numbers. A pair number is used for
reference only (e.g., 10BaseT Ethernet uses pairs 2 & 3). The pin numbers indicate
actual physical locations on the plug and jack.
RJ-45 Jack
RJ-45 Plug
1 2 3 4 5 6 7 8
8 7 6 5 4 3 2 1
CAT5 Cable Pairs
The CAT5 twisted cable pairs are color-coded; the pair colors depend on which EIA
specification is used, TIA-568B or TIA-568A.
CAT5 Pair Color Coding
PAIR # SPECIFICATION
TIA-568B
White/Blue White/Blue Pair 1
Blue Blue
White/Orange White/Green Pair 2
Orange Green
White/Green White/Orange Pair 3
Green Orange
Pair 4
White/Brown White/Brown
Brown Brown
SPECIFICATION
TIA-568A
NOTE: Because of their identical pair groupings, cables terminated with either
T568A or T568B pair assignments may be used interchangeably, provided that both
ends are terminated with the same pin/pair scheme.
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Reference Guide Crestron CAT5 Wiring
CAT5 Wiring EIA Specification TIA-568B
Crestron standard CAT5 cable color/pin arrangement is EIA specification TIA-568B,
with identical pin assignments on both ends of the cable.
RJ-45 Jack Pinouts – Standard 568B
PAIR # COLOR PIN #
White/Blue 5 1
Blue 4
White/Orange 1 2
Orange 2
White/Green 3 3
Green 6
White/Brown 7 4
Brown 8
Pin 1
White/Orange
CAT5 Wiring EIA Specification TIA-568A
In the EIA specification TIA-568A CAT5 cable color/pin arrangement, the pairs
remain the same, but the pin number assignment for the orange and green pairs
change.
RJ-45 Jack Pinouts – Standard 568A
PAIR # COLOR PIN #
1 White/ Blue 5
Blue 4
2 White/Green 1
Green 2
3 White/ Orange 3
Orange 6
4 White/Brown 7
Brown 8
Pin 1
White/Green
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Crestron CAT5 Wiring Reference Guide
Audio Applications
NOTE: Balanced audio does not require a shield if the cable has good common
mode characteristics (such as CAT5). Unbalanced audio signals are sent on a single
wire, using ground as the reference for the signal. Ground wires are problematic
because they can carry current when exposed to electromagnetic fields or when there
is a voltage difference between the two connecting pieces of equipment. Balanced
audio uses two signal wires. The signal and its complement are sent down the
twisted pair together. Any noise picked up t ends to be of equal amplitude and in
phase on both wires. At the receiver, the two signals are subtracted, and noise is
cancelled out. This technique is called common mode rejection.
CNXRMCLV Balanced Audio Connector
CNXRMCLV RJ-45 Connector Pinout (AUDIO)
PIN # SIGNAL
1 Audio out L +
2 Audio out L 3 Audio out R +
4 Audio In L +
5 Audio In L 6 Audio out R 7 Audio In R +
8 Audio In R -
1 2 3 4 5 6 7 8
CNX-BIPAD8 Balanced Audio Connector
CNX-BIPAD8 RJ-45 Connector Pinout (ROOMS 1 – 8)
PIN # SIGNAL
1 Audio In L +
2 Audio In L 3 Audio In R +
4 Audio Out L +
5 Audio Out L 6 Audio In R 7 Audio Out R +
8 Audio Out R -
1 2 3 4 5 6 7 8
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TPS-IMC-BV Balanced Audio Connector
TPS-IMC-BV RJ-45 Connector Pinout (AUDIO INPUT)
PIN # SIGNAL
1 Mic out +
2 Mic out 3 Mic out +
4 Audio In L +
5 Audio In L 6 Mic out 7 Audio In R +
8 Audio In R -
1 2 3 4 5 6 7 8
TPS-IMPC Balanced Audio Connector
This 8-pin RJ-45 mates with the TPS-3000, TPS-5000, or TPS-6000 touchpanel. The
8-pin audio cable assembly is supplied. Even though the 10-pin net/video cable may
fit into the port, do not use it. This port provides audio input to the touchpanel and
microphone output from the touchpanel .
TPS-IMPC RJ-45 Connector Pinout (AUDIO)
PIN # SIGNAL
1 Left In +
2 Left In 3 GND/Shield
4 Right In +
5 Right In 6 GND/Shield
7 Mic Out +
8 Mic Out -
1 2 3 4 5 6 7 8
TPS-IMW Audio Connector
PIN # SIGNAL
1 Audio Shield
2 Audio Left +
3 Audio Left 4 Audio Right +
5 Audio Right 6
7 Mic Out +
8 Mic Out -
Mic Out
Shield
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Crestron CAT5 Wiring Reference Guide
TPS-2000L Balanced Audio Connector
TPS-2000L Mini 8-pin Connector Pinout (Mono Audio)
PIN # SIGNAL
1 Audio In +
2 Audio In 3 Ground/Shield
4 Mic Out +
5 Mic Out 6 Ground/Shield
7 Video In +
8 Video In -
1 2 3 4 5 6 7 8
TPS-3000L/3100L/4000L Balanced Audio Connector
PIN # SIGNAL
1 Shield (S)
2 Right In (+)
3 Right In (-)
4 Left In (+)
5 Left In (-)
6 Shield (S)
1 2 3 4 5 6
TPS-3000L/TPS-3100L/4000L Unbalanced Audio Connector
PIN # SIGNAL
1 Ground (S)
2 Right Input (R+)
3 Right Ground (R-)
4 Left Input (L+)
5 Left Ground (L-)
6 Ground (S)
NOTE: Use two jumpers and connect Right Ground (pin 3) to Right Shield (pin 1),
and connect Left Ground (pin 5) to Left Shield (pin 6) at the TPS-3000L Audio Input
connector.
+ - + -
S R R L L S
1 2 3 4 5 6
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Reference Guide Crestron CAT5 Wiring
C2N-DAP8 and C2N-DAP8RC Balanced Audio Connector
C2N-DAP8RC RJ-45 Audio Connector
PIN # SIGNAL
1 Left Audio Out +
2 Left Audio Out 3 Right Audio Out +
4 Right Audio Out 5 Left Audio In +
6 Left Audio In 7 Right Audio In +
8 Right Audio In -
1 2 3 4 5 6 7 8
C2N-TXM Audio Out Connector
C2N-TXM AUDIO OUT Pinout
PIN # SIGNAL
1 Left Audio Out +
2 Left Audio Out 3 Right Audio Out +
4 Not Connected
5 Not Connected
6 Right Audio Out +
7 Not Connected
8 Not Connected
1 2 3 4 5 6 7 8
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Crestron CAT5 Wiring Reference Guide
Balanced Audio Cable from CNXRMCLV to TPS-IMC, TPS-IMC-BV, & TPS-IMW
Audio Cable Connections From CNXRMCLV RJ-45 Connector (AUDIO) to TPS-IMC,
TPS-IMC-BV and TPS-IMW Mini Connector (AUDIO INPUT)
FROM
PIN #
CNXRMCLV
(AUDIO)
RJ-45 CONNECTOR
TO
PIN #
TPS-IMC, TPS-IMC-BV
AND TPS-IMW
(AUDIO INPUT)
MINI CONNECTOR
3 Audio Out R + 2 Audio In R +
6 Audio Out R - 3 Audio In R 1 Audio Out L + 4 Audio In L +
2 Audio Out L - 5 Audio In L -
1 2 3 4 5 6 7 8
Pin 1
1 2 3 4 5 6
1 2 3 4 5 6
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Reference Guide Crestron CAT5 Wiring
Mic Cable Wiring from TPS-IMC, TPS-IMC-BV, & TPS-IMW to CNXRMCLV
TPS-IMC, TPS-IMC-BV and TPS-IMW Mini Connector (MIC OUT) to
CNXRMCLV RJ-45 Connector (AUDIO)
FROM
PIN #
1 Mic Out + 4 Audio In +
2 Mic Out - 5 Audio In 3 Shield Not Connected Not Connected
TPS-IMC, TPS-IMC-
BV AND TPS-IMW
(MIC OUT)
MINI CONNECTOR
1 2 3
TO PIN # CNXRMCLV
(AUDIO)
RJ-45 CONNECTOR
1 2 3 4 5 6 7 8
Pin 1
1 2 3
N/C
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Crestron CAT5 Wiring Reference Guide
Balanced Audio Connection from CNX-BIPAD8 to TPS-2000L
NOTE: Set to MONO on output.
CNX-BIPAD8 RJ-45 Connector (ROOMS 1 – 8) to 8-pin TPS-2000L Mini Connector
FROM PIN # CNX-BIPAD8
(ROOMS 1 - 8)
RJ-45 CONNECTOR
TO
PIN #
TPS-2000L
MINI
CONNECTOR
(MONO AUDIO)
4 Left Audio Out + 1 Audio In +
5 Left Audio Out - 2 Audio In -
Not Connected Not Connected 3 Ground/Shield
1 Audio Left In + 4 Mic Out +
2 Audio Left In - 5 Mic Out Not Connected Not Connected 6 Ground/Shield
Not Connected Not Connected 7 Video In +
Not Connected Not Connected 8 Video In -
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Pin 1
1 2 3 4 5 6 7 8
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Reference Guide Crestron CAT5 Wiring
Balanced Audio Connections from TPS-IMC-BV to CNX-BIPAD8 (Mic and Audio)
Mic and Audio from TPS-IMC-BV RJ-45 Connector (AUDIO INPUT) to CNX-BIPAD8
RJ-45 Connector (ROOMS 1 – 8)
FROM
PIN #
TPS-IMC-BV
(AUDIO INPUT)
RJ-45
TO
PIN #
CNX-BIPAD8
(ROOMS 1 - 8)
RJ-45 CONNECTOR
CONNECTOR
1 Mic Out + 1 Audio In L + for the mic to operate
2 Mic Out - 2 Audio In L - for the mic to operate
3 Mic Out + 3 Audio In R + for the mic to operate
4 Audio Left In + 4 Audio Left out +
5 Audio Left In - 5 Audio Left out 6 Mic Out - 6 Audio In R - for the mic to operate
7 Audio In Right + 7 Audio Out Right +
8 Audio In Right - 8 Audio Out Right -
1 2 3 4 5 6 7 8
Pin 1
1 2 3 4 5 6 7 8
Pin 1
Connect the TPS-IMC-BV to the CNX-BIPAD8 using the Crestron TPS Audio
cable. Audio on both channels will work properly when connecting the TPS panel
and the TPS-IMC-BV and using a standard EIA 568B CAT5 cable between
CNX-BIPAD8 and TPS-IMC-BV.
When connecting the CNX-BIPAD8 direct to the TPS touchpanel (not using the
TPS-IMC-BV) using a standard CAT5 cable or Crestron TPS Audio cable, only the
audio on the right channel will operate.
12 • Crestron CAT5 Wiring Reference Guide - DOC. 6137A
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