Power (All Models)
ATTENTION: Power supply voltage polarity is extremely important. Applying power with incorrect voltage polarity could damage the power supply and the MDA. Identify the power cord negative lead by the ridges on the side of the cord.
HPower connector — Plug the external 12 VDC power supply into this
Smooth 
Ridges
A | A |
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| Power Supply | Tie Wrap |
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0.3 inch (7 mm) MAX
Orange Captive Screw
Connector
Figure 5. Power Connector Wiring
ATTENTION:
•Always use a power supply supplied by or specified by Extron for use with the MDA. Use of an unauthorized power supply voids all regulatory compliance certification and may cause damage to the supply and the MDA.
•Unless otherwise stated, the AC/DC adapters are not suitable for use in air handling spaces or in wall cavities. The power supply is to be located within the same vicinity as the Extron AV processing equipment in an ordinary location, Pollution Degree 2, secured to the equipment rack within the dedicated closet, podium or desk.
•The installation must always be in accordance with applicable provisions of National Electrical Code ANSI/ NFPA 70, article 75 and the Canadian Electrical Code part 1, section 16. The power supply shall not be permanently fixed to building structure or similar structure.
•The length of exposed wires is important. The ideal length is 3/16 inch (5 mm) (see the NOTES on page 3 for details).
•To verify the polarity before connection, plug in the power supply with no load and check the output with a voltmeter.
•The two power cord wires must be kept separate while the power supply is plugged in. Remove power before wiring.
As an alternative, an Extron P/S 100 Universal 12 VDC Power Supply can power multiple MDAs or other Extron 12 VDC devices using only one AC power connector.
IPower LED — When lit, this LED indicates power is applied to the MDA.
9Front Panel, all MDA Models
DISTRIBUTION AMPLIFIER
Figure 6. | MDA 3 Series Front Panel (All Models) |
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Extron Headquarters |
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| Inside Europe Only | +65.6383.4664 FAX | +81.3.3511.7656 FAX | +86.21.3760.1566 FAX | +971.4.299.1880 FAX | +82.2.3444.1575 FAX | (Inside India Only) |
Extron USA - West | Extron USA - East |
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+1.714.491.1500 | +1.919.850.1000 | +31.33.453.4040 |
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+1.714.491.1517 FAX | +1.919.850.1001 FAX | +31.33.453.4050 FAX |
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