Extron Electronics MKP 2000 - Manual (Page 16)

MKP 2000 Remote Control Panel • Installation
Installation, cont’d
MKP 2000 Remote Control Panel
3
Chapter Three
Local Operation
Front Panel Controls and Indications
Front Panel Operations
Rear Panel Resets
2-14
Power supply wiring
Figure 2-13 shows how to wire the power connector.
Power Supply
Output Cord
Direct Insertion
Connector
SECTION A–A
Ridges
Smooth
A A
12 V GND
Figure 2-13 — Power connector wiring
CAUTION Power supply voltage polarity is critical. Incorrect
voltage polarity can damage the power supply and
the MKP. Identify the power cord negative lead by
the ridges on the side of the cord (figure 2-13).
To verify the polarity before connection, plug in the power
supply with no load and check the output with a voltmeter.
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 direct insertion connectors and could be
pulled out.
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.
The two power cord wires must be kept separate
while the power supply is plugged in. Remove
power before wiring.
Alternatively, you can use the optional Extron P/S 123
Universal 12 VDC Power Supply, part #60-814-01, which can
power up to ten Extron 12 VDC devices using only one AC
power connector.