Extron Electronics DVI 201 User Guide - Manual (Page 28)

Power supply wiring
NOTES: • Only one power supply is required. A single power supply connected to
either unit in the pair powers both units.
• A single power supply is included with systems packaged as a pair.
• A power supply is also included with each individually-packaged transmitter.
Figure 25 shows how to wire the connector. Snap the provided ferrite bead onto the DC
power cable, between the power supply and the connector on the DVI unit. For non-
Decora units only, use the supplied tie-wrap to strap the power cord to the extended tail
of the connector.
Power Supply
Output Cord
SECTION A–A
Ridges
Smooth
A A
NOTE
Captive Screw
Connector
Decora units have a
shorter connector,
without the tie wrap.
Tie Wrap
Ferrite Bead
DC Power Cord
(between power supply
and DVI unit
power connector)
3 5
Figure 25. Power Connector Wiring
CAUTION: Always use a power supply supplied and or specified by Extron. Use of an
unauthorized power supply voids all regulatory compliance certification and
may cause damage to the supply and the end product. Unless otherwise
stated, the AC/DC adapters are not suitable for use in air handling spaces
or in wall cavities. The installation must always be in accordance with the
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.
CAUTION: 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 25) 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.
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 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.
DVI 201 • Installation and Operation 24