Installation Manual
PS 124
12 VDC, 4 Amp Power Supply
68-1714-01 Rev. A
05 09
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弾⇡嫿⡈澤Ḧ忀₎⊲斪ɿ
FCC Class B Notice
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
the interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used
with the unit to ensure compliance.
N
VCCI Class B notice for ITE products (See the product’s specifications to determine
whether this class applies.)
この装置は、情報処理装置等電波障害自主規制協議会(VCCI)の基準に基づくクラスＢ情報技術装置で
す。この装置は、 家庭環境で使用することを目的としていますが、この装置がラジオやテレ
ビジョン受信機に近接して使用されると、受信
障害を引き起こすことがあります。
取扱説明書に従って正しい取り扱いをして下さい。
English translation: “This is a Class B product based on the standard of Voluntary Control Council for
Interference from Information Technology Equipment (VCCI). If this is used near a radio or television
receiver in a domestic environment, it may cause radio interference. Install and use the equipment
according to the instruction manual.”
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Table of Contents
All trademarks mentioned in this manual are the properties of their respective owners.
68-1714-01 Rev. A
05 09
PS 124 12 VDC, 4 Amp Power Supply • Table of Contents
i
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Table of Contents, cont’d
PS 124 12 VDC, 4 Amp Power Supply • Table of Contents
ii
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Introduction
The Extron PS 124 is a high performance, plenum rated (with
optional Flexible Conduit kit), 12 VDC power supply. The
autoswitchable 100 VAC to 240 VAC input can supply a
maximum current of 4 amps for up to eight outputs. Each
DC output is on a two-pole captive screw connector, with no
per-output current limitation. Two-tone LEDs on the front and
rear panels indicate normal operation (green) and overload
condition (red).
The rack mountable PS 124 has a 1U high, quarter rack wide,
9" deep metal enclosure, allowing the PS 124 to take advantage
of a variety of mounting options.
Front and Rear Panel Features
All power and output connections are on the rear panel.
100-240
50-60Hz 1.2A MAX.
OUTPUTS
RED-OVERLOAD
RED-
OVERLOAD
P/S 124
12 VDC 4A POWER SUPPLY
12
V
TOTAL OUTPUT 4A
C
D
E
C
F
100-240
50-60Hz 1.2A MAX.
OUTPUTS
RED-
OVERLOAD
12
V
TOTAL OUTPUT 4A
Figure 1 — PS 124 front and rear panels
LED indicators
Power status LEDs — These front and rear panel LEDs indicate
the PS 124 status by lighting as follows:
a
• Green when power is applied and current draw is normal
• Red indicates a current overload condition
Continued operation in an overload condition may
cause premature power supply failure.
C
• Unlit when an output is shorted
To identify the shorted output, unplug the outputs one at
a time until the LEDs light green.
N
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
1
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PS 124, cont’d
Input Power
Apply power to the PS 124 using the supplied IEC power cord
(b) or by installing the optional Flexible Conduit Adapter Kit
(Extron part #70-228-02) (c).
IEC connector/power supply — Plug the IEC cord into this
connector and a 100–240 VAC source.
b
c
-OR-
Optional conduit adapter plate — The IEC connector and
adapter plate can be replaced by this half-inch conduit EMT
(Electrical Metallic Tubing) adapter plate, as shown in figure 2.
See “Input power — using the Flexible Conduit Adapter Kit,”
on page 4.
With the installation of the Flexible Conduit Adapter kit,
the PS 124 is suitable for use in air handling spaces and
meets all applicable requirements of UL 2043.
N
Extron
PS 124
12 VDC 4 A Power Supply
For plenum applications replace
this plate with optional flex conduit
kit, part #70-228-02.
100-240
50-60Hz 1.2A MAX.
OUTPUTS
RED-
OVERLOAD
12 VDC TOTAL OUTPUT 4A
1
2
3
4
5
6
7
8
100-240
50-60Hz 1.2A MAX.
OUTPUTS
RED-
OVERLOAD
12 VDC TOTAL OUTPUT 4A
Figure 2 — Using the conduit option
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
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DC Outputs
DC Output connectors — Connect the power cables from
devices that will receive power from the PS 124 to these 3.5 mm
captive screw connectors.
d
The PS 124 supports up to eight power supply outputs. For
details on limitations and how to wire these captive screw
connectors, see “Output power — wiring the DC output
connectors,” on page 8.
5
4
3
2
1
A
L
S
MDA 5A RC
OUTPUT
R
POWER
X
12V
Extron
.3A MA
INPUT
MDA 5A RCA
Audio Mini Distribution
Amplifer
Output 1
Output 2
Output 3
Output 4
OUTPUTS
MAX.
4A
100-240
50-60Hz 1.2A
RED-
OVERLOAD
AL OUTPUT
T
12 VDC TO
Extron
PS 124
12VDC 4A
Power Supply
Output 8
Output 7
4
S
3
OUTPUT
2
1
Output 6
MDA 4V HD-SDI
INPUTS
POWER
X
12V
0.4A MA
Output 5
Extron
MDA 4V HD-SDI
HD-SDI Mini Distribution
Amplifer
Figure 3 Application Diagram
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
3
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PS 124, cont’d
Connections
Input power — using the IEC power cord
Use the included IEC power cord to connect the PS 124 to a
100 VAC to 240 VAC, 50-60 Hz power source.
The circuit breaker used for this connection should
be rated 20 amps maximum.
W
Input power — using the Flexible Conduit Adapter
Kit
The optional Flexible Conduit Adapter Kit, part # 70-228-02,
provides a convenient means to replace the IEC power cord with
conduit when required by local codes.
The kit consists of:
• One EMT adaptor plate
• One 6-foot long electrical conduit
• Three 7.5 feet, 18-gauge spade connector power wires
• One UL Listed zip tie wrap
• Three auxiliary crimp style spade connectors designed for
14- to 16-gauge wires
Extron recommends using a crimp tool such as Molex
part #19285-0008 to terminate the spade connectors.
N
Make certain the PS 124 and all connected devices are turned off
and disconnected from the power source before beginning.
The circuit breaker used for this connection should
be rated 20 amps maximum.
W
For permanently connected equipment there
must be a readily accessible disconnect device
incorporated in the building installation wiring.
W
Installation and service must be performed by a
qualified electrician only.
W
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UL guidelines
The Underwriters Laboratories (UL) guidelines listed below
pertain to the installation of the flexible conduit option.
• This unit is not to be used beyond its rated voltage range.
• This unit must be wired to a UL listed distribution box.
The electrical distribution box is not included with
either the PS 124 power supply or the Flexible Conduit
Adapter Kit; the installer is responsible for obtaining and
installing a UL Listed box.
N
• This unit must be installed in accordance with the National
Electrical Code and all local codes.
Installing the flexible conduit cable
Install the flexible conduit cable assembly to the PS 124 as
follows:
1.
2.
Remove the IEC power cord.
Remove and retain the two Phillips head screws that
secure the IEC plate (figure 4, below) to the PS 124 rear
panel.
100-240
50-60Hz 1.2A MAX.
OUTPUTS
IEC Plate
RED-
OVERLOAD
12 VDC TOTAL OUTPUT 4A
Remove two screws.
Figure 4 — Removing the IEC plate
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
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PS 124, cont’d
3.
Remove and retain the six screws that attach the top cover
of the PS 124 to the chassis (figure 5).
Lift the cover
straight up.
Remove three
screws on
each side.
4
Y
L
P/S 12
WER SUPP
VDC 4A PO
12
D
A
O
ERL
V
O
RED-
Figure 5 — Removing the top cover
4.
Carefully lift the top cover up, taking care not to remove it
completely.
Rough handling of the top cover can tear wiring
that connects the front panel LED.
C
5.
Use a standard screwdriver to loosen the screws holding
the hot and neutral wires on the side of the terminal block
nearest the IEC plate opening (figure 6).
Terminal Block
Hot Terminal
IEC Plate
Opening
Neutral Terminal
Ground Wire Nut
Figure 6 — Terminal block and IEC connector wiring
6.
Unscrew the ground wire nut on the bottom of the PS 124
enclosure and remove the ground wire.
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
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7.
8.
9.
From the rear panel end, pull the IEC connector
(see figure 4) out of the enclosure.
From the conduit kit, thread the 18-gauge power wires
through the length of the electrical conduit tube.
Install the EMT adapter plate (figure 2) into the opening.
Use the Phillips head screws removed in step 2 (figure 4) to
attach the adapter plate.
If the conduit is attached to the EMT plate, skip step 10.
N
10. Slide the conduit nut (figure 7, below) over the bundle of
wires exiting the conduit and onto the conduit itself inside
the PS 124. Hand-tighten the nut.
Terminal Block
Hot Terminal
Metal Tab
Tie Wrap
Neutral Terminal
Conduit Nut
Ground Wire Nut
Figure 7 — Terminal block and conduit wiring
11. Attach and fasten the hot and neutral wires from the
conduit to their corresponding screws on the terminal
block.
Ensure wire polarity is observed. Figure 7 shows
the location of the neutral and hot terminals on the
terminal block. The conduit wiring harness neutral
wire is identified with a tag marked "N" (neutral).
W
12. Attach the ground wire from the conduit to the chassis
ground, securing it by reattaching the ground wire nut.
13. Thread a tie wrap through the metal tab on the bottom of
the PS 124, place all the wires within its cradle, and zip the
tie wrap over the bundle of wires.
14. Tighten the conduit nut (figure 7 above) to ensure it firmly
secures the conduit to the EMT adapter plate.
15. Use the screws removed in step 3 to fasten the top cover of
the PS 124 back onto the chassis (figure 5).
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
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PS 124, cont’d
Output power — wiring the DC output connectors
The PS 124 can supply 12 VDC to multiple devices using
3.5 mm, 2-pole captive screw connectors. The combined current
draw of the connected devices must not exceed 4 amps.
To verify proper polarity before connection to a device,
plug in the power supply with no load and check the
output polarity with a voltmeter. Remove power before
continuing.
N
When verifying power supply polarity, the two
power cord wires must be kept separate while the
power supply is plugged in.
W
To connect products to the outputs of the PS 124:
1.
2.
Cut the DC output cord to the length required.
Strip the jacket of the conductor wire (figure 8).
Ridges
Smooth
2-Pole Orange
Captive Screw
Connector
(12V)
+
A
A
–
SECTION A–A
Power Supply
Output Cord
3/16”
(5 mm) Max.
Smooth
Ridges
Figure 8 — Power connector wiring
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 captive screw connectors and could be
pulled out.
N
Do not tin the stripped power supply leads. Tinned
wires are not as secure in the captive screw connectors
and could be pulled out.
3.
4.
Slide the leads into the supplied 2-pole captive screw plug
and secure using an Extron Tweeker or small screwdriver.
Use the supplied tie wrap to strap the power cord to the
extended tail of the connector.
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Installing the PS 124
There are several optional accessories for mounting the PS 124.
They include the following Extron part numbers:
• RSU 129 1U 9.5" Deep Universal Rack Shelf
(part #60-190-01)
• RSB 129 1U 9.5" Deep Basic Rack Shelf
(part #60-604-01)
• MBU 125 1U Under-Desk Mounting
(part #70-077-01)
• PMK 350 Low Profile Pole Mount Kit for Multiple Products
(part #70-563-03)
Additional mounting options may be found on the Extron
website at www.extron.com
UL rack mounting guidelines
The following Underwriters Laboratories (UL) guidelines
pertain to the installation of the PS 124 into a rack.
•
Elevated operating ambient temperature — If the
equipment is installed in a closed or multiunit rack
assembly, the operating ambient temperature of the
rack environment may be greater than room ambient
temperature.
Therefore, consider installing the equipment in an
environment compatible with the maximum ambient
temperature (Tma) specified by the manufacturer. For the
PS 124, the Tma is 122 °F (50 °C).
•
•
•
Reduced air flow — Installation of the equipment in a rack
should be such that the amount of air flow required for
safe operation of the equipment is not compromised.
Mechanical loading — Mounting of the equipment in
the rack should be such that a hazardous condition is not
created due to uneven mechanical loading.
Circuit overloading — Consideration should be given to
the connection of the equipment to the supply circuit and
the effect that overloading of the circuits might have on
overcurrent protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should be
used when addressing this concern.
•
Reliable earthing (grounding) — Reliable earthing
of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections
other than direct connections to the branch circuit (e.g. use
of power strips.
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PS 124, cont’d
Rack mounting
For optional rack mounting, mount up to four PS 124 power
supplies on an RSU 129 9.5" 1U Universal Rack Shelf (part
#60-190-01) (figure 8) or an RSB 129 9.5" 1U Basic Rack Shelf
(part #60-604-01).
1U Universal Rack Shelf
1/2 Rack Width Front False
Faceplate
1/4 Rack Width Front False
Faceplate
Both front false faceplates
use 2 screws.
(2) 4-40 x 3/16"
Screws
Use 2 mounting holes on
opposite corners.
Figure 9 — Rack mounting the PS 124
1.
2.
3.
If feet were previously installed on the bottom of the
PS 124 unit, remove them.
Mount the PS 124 on the rack shelf, using two 4-40 x 3/16"
screws in opposite (diagonal) corners.
If necessary, mount the half rack width false front panel
(included with the Universal Rack Shelf only) and/or the
quarter rack width false front panel (included with the
PS 124) to the shelf, using two 4-40 x 3/16" screws in the
front holes for each panel.
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Under-desk mounting
In addition to using the PS 124 power supply on a rack or
projector, it can also be mounted under furniture (such as a
desk) using the MBU 125 Under-Desk Mounting Kit (part
#70-077-01). To mount the PS 124 under a desk or other
furniture, follow these steps:
1.
Attach the mounting brackets to the power supply with
the provided machine screws (figure 10).
2.
Hold the power supply with the attached brackets against
the underside of the furniture. Mark the location of the
screw holes of the bracket on the mounting surface.
3.
4.
Drill 3/32" (2 mm) diameter pilot holes, 1/4" (6.3 mm)
deep in the mounting surface at the marked screw
locations.
Insert #8 wood screws into the four pilot holes. Tighten
each screw into the mounting surface until just less than
1/4" of the screw head protrudes.
Figure 10 — Under-desk mounting the PS 124
5.
Align the mounting screws with the slots in the brackets
and place the power supply against the surface, with the
screws through the bracket slots.
6.
Slide the unit slightly forward or back, then tighten all four
screws to secure it in place.
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PS 124, cont’d
Above-projector mounting
PMK 350
The PMK 350, (part #70-563-03), is an above-projector mounting
kit that attaches to a 1" to 2" diameter projector mounting pole
(figure 11). It can hold multiple devices in a variety of sizes.
These instructions are for the PMK 350. If another
above‑projector mounting is used, follow the installation
instructions for that kit.
N
Extron
IPL T S2
Ethernet Control
Interface
Extron
PS 124
12 VDC 4 A
Power Supply
Rear Plate
1
2
COM
COM
COM2
12052
OM1
RX
C
UID# 0930
RX
TX
N
LA
TX
R
WE
PO
12V
X
.5A MA
4
P/S 12 Y
WER SUPPL
VDC 4A PO
12
AD
ERLO
V
O
RED-
Extron
U-bolt
PMK 350
Multi-product Projector
Mounting Kit
TREBLE
SS
A
B
A
122
MP LIFIER
LEVEL
WER AMP
MINI PO
STEREO
ON
AL
DU
R
MONO
LIMITE
F
OF
Extron
MPA 122
Mini Power Amplifier
Front Plate
Cover Sheet
Figure 11 — Projector mounting the PS 124
To mount the PS 124 onto the PMK 350 bracket:
1.
Remove the front and rear plates from the PMK 350
(figure 11). Retain the screws to reattach the plates.
2.
3.
If necessary, remove the feet from the bottom of the PS 124.
Secure the unit to one side of the mounting tray, using two
of the 4-40 x 3/16" screws in opposite (diagonal) corners.
4.
Place the PMK 350 around the projector ceiling mounting
pole (figure 11, above).
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5.
Assemble the U-bolt and the following parts in order:
a. Pass the legs of the U-bolt through the slotted holes on
the mount plate flange.
b. Place the legs around the ceiling pole.
c. Pass the legs through the holes in the contoured base.
The pole fits snugly into the depression in the center of
the contoured base.
N
d. Pass the legs through the holes in the L-shaped bracket.
The bracket slots can accommodate 1.0" to 2.0" diameter
poles. The supplied square U‑bolt fits 1.5" to 2.0"
diameter poles. If a smaller diameter pole is used, obtain
the proper size square U‑bolt locally.
N
Mount Plate
Flange
Contoured
Base
U-bolt
L-shaped
Bracket
Slotted Hole
in PMK Tray
L-shaped
Bracket Screws
Ceiling
Pole
Figure 12 — Projector mounting the PS 124
6.
Align the two slotted holes in the bottom of the L-shaped
bracket with the two slotted holes in the base of the
tray. Secure the L-bracket to the base by inserting two
6-32 x 5/16" screws (provided) through the aligned slots.
7.
8.
Move the PMK 350 to the desired location on the ceiling
pole, as close to the ceiling as desired.
Secure the L-shaped bracket to the U-bolt using the
included hex nuts, washers, and lock washers. Tighten the
hex nuts securely.
A socket wrench is recommended to tighten the
hex nuts so the PMK 350 does not slide down the
ceiling pole.
C
9.
Secure the front panel to the mounting tray with four of
the included #6 screws.
10. If desired, apply one of the cover sheets to the underside of
the mounting tray (figure 11).
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
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PS 124, cont’d
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
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Specifications
General
Power input.................................... 100 VAC to 240 VAC, 50-60 Hz, internal,
1.2 A
No load: 3.6 watts
Full load on all outputs: 48 watts
Power output................................. 12 VDC, 4 A maximum total current of the
8 outputs
Maximum output current is rated at an ambient temperature of
40 °C.
N
Temperature/humidity................ Storage: -40 to +158 °F (-40 to +70 °C) /
10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) /
10% to 90%, noncondensing
Cooling ........................................... Convection, no vents
Mounting
Rack mount........................ Yes, with optional 1U rack shelf
Furniture mount................ Yes, with optional under-desk mounting
kit
Pole mount......................... Yes, with optional mounting kit
Enclosure type ............................... Metal
Enclosure dimensions................... 1.75" H x 4.3" W x 8.5" D (1U high,
quarter rack wide)
(4.4 cm H x 11.0 cm W x 21.6 cm D)
(Depth excludes connectors.)
Product weight .............................. 1.2 lbs (0.5 kg)
Shipping weight ............................ 3 lbs (2 kg)
Vibration......................................... ISTA 1A in carton (International Safe
Transit Association)
Regulatory compliance
Safety................................... CE, c-UL, NEC section 300.22 (C), UL
Meets UL 60950-1 and IEC 60950-1.
With the installation of the Extron
Flexible Conduit kit, meets all applicable
requirements of UL 2043 for use in air
handling spaces.
EMI/EMC .......................... CE, CISPR 22 Class B, C-tick, EN55022
Class B, FCC Class B, ICES Class B,
VCCI Class B
Environmental................... Complies with the appropriate
requirements of RoHS, WEEE
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
15
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PS 124, cont’d
MTBF............................................... 30,000 hours minimum
Warranty......................................... 3 years parts and labor
All nominal levels are at 10%.
N
N
Specifications are subject to change without notice.
Included Parts
These items are included in each order for a PS 124 power
supply:
Included parts
PS 124 Power Supply
Part number
60-1022-01
(8) 3.5 mm, 2-pole captive screw connectors 100-454-01
(4) Rubber feet (not attached)
IEC power cord
Tweeker (small screwdriver)
PS 124 Installation Manual
Accessories
Accessories
Part number
70-228-02
Flexible Conduit Adapter Kit
PMK 350 Low Profile Multi-product
Projector Mount Kit, white
70-563-03
RSU 129 1U 9.5" Deep Universal rack shelf 60-190-01
RSB 129 1U 9.5" Deep Basic Rack Shelf
60-604-01
70-077-01
MBU 125 1U, 1/2 Rack Width,
Under-Desk Mount Kit
PS 124 12 VDC, 4 Amp Power Supply • Installation Manual
16
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Extron’s Warranty
Extron Electronics warrants this product against defects in materials and workmanship
for a period of three years from the date of purchase. In the event of malfunction during
the warranty period attributable directly to faulty workmanship and/or materials,
Extron Electronics will, at its option, repair or replace said products or components,
to whatever extent it shall deem necessary to restore said product to proper operating
condition, provided that it is returned within the warranty period, with proof of
purchase and description of malfunction to:
USA, Canada, South America,
and Central America:
Extron Electronics
1001 East Ball Road
Anaheim, CA 92805
Japan: Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
U.S.A.
Europe, Africa, and the Middle East:
Extron Europe
Hanzeboulevard 10
3825 PH Amersfoort
The Netherlands
China:
Extron China
686 Ronghua Road, Songjiang
District
Shanghai 201611
China
Asia:
Middle East:
Extron Asia
Extron Middle East
Dubai Airport Free Zone
F12, PO Box 293666
United Arab Emirates, Dubai
135 Joo Seng Road, #04-01
PM Industrial Bldg.
Singapore 368363
Singapore
This Limited Warranty does not apply if the fault has been caused by misuse, improper
handling care, electrical or mechanical abuse, abnormal operating conditions or non-
Extron authorized modification to the product.
If it has been determined that the product is defective, please call Extron and ask for
an Applications Engineer at (714) 491-1500 (USA), 31.33.453.4040 (Europe), 65.383.4400
(Asia), or 81.3.3511.7655 (Japan) to receive an RA# (Return Authorization number). This
will begin the repair process as quickly as possible.
Units must be returned insured, with shipping charges prepaid. If not insured, you
assume the risk of loss or damage during shipment. Returned units must include the
serial number and a description of the problem, as well as the name of the person to
contact in case there are any questions.
Extron Electronics makes no further warranties either expressed or implied with respect
to the product and its quality, performance, merchantability, or fitness for any particular
use. In no event will Extron Electronics be liable for direct, indirect, or consequential
damages resulting from any defect in this product even if Extron Electronics has been
advised of such damage.
Please note that laws vary from state to state and country to country, and that some
provisions of this warranty may not apply to you.
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Extron USA - West Extron USA - East Extron Europe
Extron Asia
Extron Japan
Extron China
Extron Middle East
Headquarters
+800.633.9876
+800.3987.6673
+800.7339.8766
+81.3.3511.7655
+81.3.3511.7656 FAX
+400.883.1568
+971.4.2991800
+971.4.2991880 FAX
Inside USA / Canada Only
Inside Europe Only
Inside Asia Only
Inside China Only
+800.633.9876
Inside USA / Canada Only
+1.919.863.1794
+1.919.863.1797 FAX
+31.33.453.4040
+31.33.453.4050 FAX
+65.6383.4400
+65.6383.4664 FAX
+86.21.3760.1568
+86.21.3760.1566 FAX
+1.714.491.1500
+1.714.491.1517 FAX
© 2009 Extron Electronics. All rights reserved.
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