Extron Electronics MTP U T A D User Guide - Manual (Page 17)

MTP U T A D • Installation and Operation 11
Making Connections
Power Supply Wiring
Figure 7 shows how to wire the power connector.
SECTION A–A
Ridges
Smooth
2-Pole
Captive Screw
Connector (12V)
Tie
Wrap
3/16”
(5 mm) Max.
12 V
A A
Figure 7. Power Connector Wiring
CAUTION: Power supply voltage polarity is critical. Incorrect voltage polarity can
damage the power supply and the MTP. Identify the power cord negative
lead by the ridges on the side of the cord (see
figure 7 ).
To verify the polarity before connection, plug in the power supply with no load and check
the output with a voltmeter.
WARNING: The two power cord wires must be kept separate while the power supply is
plugged in. Remove power before wiring.
CAUTION: The length of the exposed (stripped) copper wires is important. The ideal
length is 3/16 inch (5 mm). Longer bare wires can short together. Shorter
wires are not as secure in the direct insertion connectors and could be
pulled out.
NOTE: 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 124 Multiple Output 12 Volt DC Power Supply (part
number 60-1022-01) can power multiple Extron 12 VDC devices using only one AC power
connector.