MTP SW6 • Installation and Opeation
Installation and Operation, cont’d
2-10
MTP SW6 • Installation and Opeation
2-11
C Power supply voltage polarity is critical. Incorrect
voltage polarity can damage the power supply
and the unit. The ridges on the side of the cord
(figure 2-8) identify the power cord negative lead.
To verify the polarity before connection, plug in the power
supply with no load and check the output with a voltmeter.
W The two power cord wires must be kept separate
while the power supply is plugged in. Remove
power before wiring.
C The length of the exposed (stripped) copper
wires is important. The ideal length is 3/16”
(5 mm). Longer bare wires can short together.
Shorter wires are not as secure in the connectors
and could be pulled out.
N Do not tin the power supply leads before installing them
in the direct insertion connector. Tinned wires are not as
secure in the connectors and could be pulled out.
Use the supplied tie-wrap to strap the power cord to the
extended tail of the connector.
Alternatively, an optional Extron PS 123 Universal 12 VDC
Power Supply, part #60-814-01, can power multiple Extron 12
VDC devices using only one AC power connector.
TP cable termination
N RJ-45 termination with CAT 5, CAT 5e, or CAT 6 cable
must comply with the TIA/EIA T568A or TIA/EIA
T568B wiring standards for all connections.
RJ-45 termination with Skew-Free A/V UTP cable must
comply with TIA/EIA T568A only.
Figure 2-9, on the next page, details the recommended
termination of TP cables with RJ-45 connectors in accordance
with the TIA/EIA T568A or TIA/EIA T568B wiring standards.
You can use either standard with CAT 5/5e/6 cable, but ensure
that you use the same standard on both ends of the cable.
The audio data that is carried on wire pair 3 and 6 is
incompatible with the Extron TPX 88A, which cannot
switch the audio, output it locally, or break it away.
5
Pin
1 Red+/V. sync+
2 Red–/V. sync–
3 RS-232+
Green-
6 RS-232-
Mono audio+
Mono audio-
7 Blue+/H. sync+
8 Blue-/H. sync-
4
Wire color
White-green
NOTE If you are using Enhanced Skew-Free™ A/V cable, use the TIA/EIA T568A standard only.
Green
White-orange
White-blue
Orange
White-brown
Brown
Wire color
T568A T568B Video input (via transmitter) Secondary input
RGB
White-orange
Orange
White-green
White-blue
Green
White-brown
Brown
Side
Green+Blue Blue
12345678
Insert
Twisted
Pair Wires
Pins: RJ-45
Connector
Reserved
Reserved
Video-
Reserved
Reserved
Reserved
Reserved
Composite
Chroma (C)+
Chroma (C)-
Luma (Y)+
Luma (Y)-
S-video
Video+
Stereo audio RS-232
Figure 2-9 — TP cable termination
Enhanced Skew-
Free A/V cable is
not recommended
for Ethernet/LAN
applications. This cable
is specially designed
for compatibility with
Extron’s Twisted Pair
products that are wired
using the TIA/EIA
T568A standard.
The green, brown, and
blue wire pairs of this
cable have virtually
identical lengths
and should be used
to transmit the RGB
signals.
The orange wire pair of
this cable has a different
length and should not
be used to transmit the
RGB signals.