t Owner's manual

Installing the Desktop Power Supply Kit
The Extron External Power Supply kits can be used as additional power supplies
or to replacements. Each desktop kit consists of a power supply and a detached
IEC power cord. Each power supply includes a permanently attached 6-foot
output power cord. Two of the kits are preterminated with plug connectors. The
remaining kits can be terminated with a captive screw connector or screwlocked
into a direct-insertion captive screw connector. Unterminated power supplies have
approximately 3/16" (5 mm) of their output power cords exposed.
Determining polarity
When you are connecting the power supply output cord, voltage polarity is
extremely important.
C Applying power with incorrect voltage polarity can damage the power
supply and the device to which it is connected.
The polarity of the unterminated power supply’s output wires is identified by the
following marks (figure 1), the power cord negative (–) lead is identified by ridged
surfaces on the side of the cord.
Power Supply
Output Cord
SECTION A–A
Ridges
Smooth
A A
Figure 1 — Power supply output cables polarity
To verify the polarity before connection, plug in the power supply with no load
and check the output with a voltmeter. Remove power before continuing.
W The two power cord wires must be kept separated while power is on.
• The correct polarity for the powered device is normally silk-screened near the
connection points on the rear of the device.
• The polarity of the preterminated power supply output is
indicated on the product label, as shown at right.
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
800.633.9876 714.491.1500
FAX [phone]
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort, The Netherlands
+800.3987.6673 +31.33.453.4040
FAX [phone]
Extron Electronics, Asia
135 Joo Seng Rd. #04-01
PM Industrial Bldg., Singapore 368363
+800.7339.8766 +65.6383.4400
FAX [phone]
Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
+81.3.3511.7655 FAX [phone]
www.extron.com
68-340-01
Rev. H
12 07
Connecting unterminated power supplies
The power supply ships with approximately 3/16" (5 mm) of each output power
cord wire exposed. If necessary, remove the original power cord from the
powered device. Leave the wires untinned. Insert the proper polarity (+ and –)
ends of the wires into the appropriate holes on the captive screw or direct
insertion connector (figure 2). Tighten the captive screws.
For the orange 2-pole captive screw connector, use the supplied tie-wrap to strap
the power cord to the extended tail of the connector, as shown in figure 2.
2-Pole Blue
Captive Screw
Connector
3-Pole
Captive Screw
Connector
2-Pole
Direct Insertion
Captive Screw
Connector
Ridges
Smooth
2-Pole Orange
Captive Screw
Connector
(12V)
Tie Wrap
3/16”
(5 mm) Max.
Figure 2 — Typical power connections
C 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.
N Your powered device may have shipped with a blue captive screw connector.
This blue connector can be plugged into either a blue or an orange power
receptacle on the powered device.
N Do not tin the power supply leads before installing the wires in the connector.
Tinned wires are not as secure in the captive screw connectors and could pull
out.
Power up
When the installation or replacement is complete, power up the device as follows:
1. Reassemble the device to be powered as necessary.
2. For desktop models, connect the IEC AC power cord to the power supply.
3. Plug the AC plug into a wall outlet. Check the powered device for proper
operation.