Extron Electronics MDA 4V EQ User’s Manual - Manual (Page 13)

Installation and Operation, cont’d
VersaTools ® MDA EQ Series • Installation and Operation VersaTools ® MDA EQ Series • Installation and Operation
9 . Move the PMK 350 up to the desired location on the
ceiling pole, as close to the ceiling as desired.
10 . Secure the L bracket to the U-bolt, using the included hex
nuts. Hand-tighten the hex nuts, make any final
adjustments to the PMK’s position, then tighten the hex
nuts securely, using an 11/16" deep socket or box-end
ratchet wrench.
N Be sure to tighten the hex nuts securely enough that the
PMK 350 does not slide down the ceiling pole.
11 . Secure the front panel to the mounting tray with four of
the included #6 screws.
12 . If desired, tear out one of the four perforated self-adhesive
overlay sheets, and apply it to the underside of the
mounting tray.
Rear Panel Features and Cabling
The following figures show the back panel configurations of the
three MDA EQ models.
MDA 2V EQ
POWER
12V
0.2A MAX
INPUT OUTPUTS
HIGH Z
IN 1
2
75 Ohm
INPUT
LOOP-THRU LOOP-THRU
1 2 3
6
4
MDA 2V EQ rear panel
MDA 4V EQ
POWER
12V
0.2A MAX
INPUT INPUT
LOOP-THRU
OUTPUTS
HIGH Z
IN 1
2
75 Ohm
3
4
6
4 1 2 3
MDA 4V EQ rear panel
INPUT
MDA 4SV EQ
POWER
12V
0.2A MAX
INPUT
LOOP-THRU
OUTPUTS
HIGH Z
IN
2
75 Ohm
4
1 3
1 2 3 5
7
MDA 4SV EQ rear panel
1 Power connector — Plug the external 12 VDC power supply
into this 2-pin, 3.5 mm captive screw connector. The power
supply is included with the unit.
The power connector on the rear panel is orange;
however, the plug for the power cord may be either
orange or blue. Either color plug can be connected to the
rear panel receptacle.
To wire the connector:
1 . Cut the DC output cord to the length needed.
2 . Strip the jacket to expose 0.2" (5 mm) of the conductors for
the blue captive screw plug, or 0.3" (7 mm) for the orange
plug.
W Exposing more than the amount of copper wire
described above could allow the stripped wires to
touch each other, causing a short circuit. This
could result in the external DC power supply
overheating and/or burning.
N Stripping the wires to expose less than the recommended
amount causes them to slide out of the connector too
easily, even if they are tightly pinched by the captive
screws.
3 . Slide the leads into the supplied captive screw plug and
lock them, using an Extron Tweeker (small screwdriver).
4 . Use the supplied tie-wrap to strap the power cord to the
extended tail of the connector.
5 . To verify the power cord’s polarity before connecting it,
plug in the power supply with no load and check the
output with a voltmeter.
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