Twisted pair cable (see, Cable testing, Compatibilty with other extron products – Extron Electronics VTR001 User Guide User Manual
Page 13
NOTE: If the transmitter or receiver is to be wall mounted and the power supply will be
inaccessible, power must be applied to the power supply before final mounting.
Compatibilty with Other Extron Products
The VTT001 series and VTR001 series products can communicate with other Extron
products. The following tables indicate how the products interact.
TP T 15HD A TP T 15HD AV
TP T BNC
TP T BNC DA4
TP T AV
TP T 460
VTR001 series
TP T 468
A
A
A
A
B
A
A
TP R BNC AV TP R BNC A
TP R AV
TP R 15HD A
VTT001 series
A
A
B
A
A = RGB video only
B = incompatible
IN1404XT
TP T 15HD 45
A
A
NOTE: The VTT001 series and VTR001 series will not power the compatible Extron
products remotely.
Cable Testing
To ensure proper cable termination, each transmission cable system that uses CAT 5e or
CAT 6 cable should be tested (Extron Skew-Free AV UTP cable does not need to be tested).
Testing the cable from the RJ-45 connections at the transmitter and receiver gives the most
accurate indications of cable problems.
There are two varieties of cable runs: simple runs, in which a single cable is terminated
only at the transmitter and receiver; and complex runs, which can include patch bays and
multiple terminations and lengths of cable. In either case, the entire cabling system should
be tested.
A complete test measures cable length and tests the wire map, attenuation, NEXT, PSNEXT,
ELFEXT, PSELFEXT, return loss, ACR and PSACR. All of these tests are critical for digital
data transfer. While all of these tests are important indicators of the quality of the cable
termination, the most critical testing parameters for video transfer are wire map (T568A or
T568B termination) and pair length measurements. The largest concern is equalization of
skew between cable pairs. Cable systems of 300 feet or less should exhibit no transmission
problems if they pass at least CAT 5e or preferably CAT 6-D5 channel certification testing.
The Microtest
®
OMNI SCANNER™ 2 performs comprehensive certification testing to the
proposed CAT 6 standards. Other manufacturers also make testing equipment. The tests
include advanced diagnostics for troubleshooting the cause and location of many cable and
termination problems. For simple installation testing, the Microtest MICRO SCANNER PRO
tests wire map and cable length, including individual cable pair length.
VTT001 and VTR001 User Guide • Installation
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