ARX i-SWITCH User manual

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i-SWITCHTM
12 Channel
Line Switcher
OWNER’S MANUAL
INTERNATIONAL LIMITED WARRANTY
ARX Systems (ARX) warrants to the first purchaser of any ARX equipment that it is free from defects in materials and workmanship under normal use and service. ARX’s soleobligationunderthiswarrantyshallbetoprovide,withoutcharge,partsandlabour necessarytoremedydefects,ifany,whichappearwithintwelve(12)monthsfromdate of purchase, and for a further twelve (12) months supply parts only. This is our only warranty.It does not cover finish or appearance items, burned voice coils, or if the equipment has been, in ARX’s sole judgement: •Subjected to misuse, abuse, negligence or accident; •Repaired, worked on, or altered by persons not authorized by ARX; •Connected, installed, adjusted or used for a purpose other than that for which it was designed. This includes running a speaker system with the ISC leads disconnected, or with a non-ARX crossover, or with the wrong processor. Thiswarranty givesyou andusspecific legalrightsandyoumay alsohaveother rights which may apply.
Warranty Service Procedure Should it become necessary to have your equipment serviced under the terms of the warranty, please follow these steps:
1. Call your ARX distributor for a Return Authorization (RA) number; 2. Carefully repackthe unit,in itsoriginal packagingwhere possible,including anote
with a description of the problem, and a copy of the receipt showing date of purchase.Attachthese to theactual unit itself.Don’tforget to writeyour name and address clearly, and include a phone number where you can be contacted during normal business hours. Make it easy for our service technicians to contact you if they have a question. Also, use plenty of packing material - better to be safe than sorry.
3. Send the unit freight prepaid to ARX Systems, at the address given you with your
RA number. We will pay the return freight when the serviced unit is returned to you.
4. We strongly recommend you insure the package. We can’t fix it if it gets lost! Send
it by UPS, Fedex, or any similar service that can track the package. Parcel Post is not recommended
If Warranty Registration Card is missing, please write to ARX in the country of purchase, stating model and where purchased, or to ARX, PO Box 15, Moorabbin, Victoria3189, Australia. Or you can Email us at: [email protected]
ARX Systems Pty Ltd, PO Box 15,
Moorabbin, Victoria 3189, Australia
Phone: [phone] Fax: [phone]
International Fax: [phone]
On the Web: www.arx.com.au
Email: [email protected]

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Complete online documentation is available at our website: www.arx.com.au/i-switch.htm Specific queries can be emailed to the factory at [email protected]
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This symbol indicates that a Slow Blow fuse is used in this equipment. Replace with same type and value only
This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock. This symbol is intended to alert you to the presence of important operating instructions contained in this owner's manual
WARNING SYMBOLS USED ON THIS EQUIPMENT
IMPORTANT - PLEASE READ THIS FIRST
This is a dual voltage unit. It is essential that you check that the voltage on the
fuseholder cover below the AC connector on the rear of the chassis is set correctly
before connecting it to AC power.
To change, pull fuseholder out and rotate 180
o
, then push in again. Do not insert
power cable into unit until voltage has been correctly set. Do not plug power cable into AC power until voltage has been correctly set
THIS IS SET FOR 100 V
AC TO 120 V AC
OPERATION
THIS IS SET FOR 220 V
AC TO 240 V AC
OPERATION
Complies with 89/336/EEC EMC Directive, amended by 92/31/EEC and 93/68/EEC and meets the following standards:EN 55013 : 1990, Sections 3.2 and 3.5 EN 55020 : 1988, Sections 4.3, 5.4, 6.2, 7.0, 8.0. Complies with Australian Standard AS/N25 1053
i-switch Technical Specifications Gain
Off to +6dB
Input A and B Impedance
40 KOhm
Input Headroom
+21dB
Outputs 1–12 Impedance
100 Ohm
Output Level (Max)
+26dB
Frequency Response
10Hz – 20KHz ±0.25 dB
Signal to Noise ratio
–96dB Unweighted –102dB ‘A’ weighted
Distortion @ Unity Gain
.0025% THD, 0dB @ 1 KHz
Dynamic Range
122 dB
Input Connectors
Balanced Tip-Ring-Sleeve jack, wired Tip +, Ring –, Sleeve Audio Earth/Ground
Our policy is one of continuous improvement, and therefore designs may change withoutnotice.However,unlessotherwisestated,specificationswillalwaysequalor exceedthosepreviouslygiven.ARX®isaRegisteredTradeMarkofARXSystemsPty Ltd.Thei-switch logo deviceisatrade mark or ARX SystemsPtyLtd.Any other
namesandtrademarksareusedforinformationpurposesonly,andnootherintentis expressedorimplied
Output Connectors
Balanced Tip-Ring-Sleeve jack, wired Tip +, Ring –, Sleeve Audio Earth/Ground
Staus Indicators
Input A or B LEDs, Outputs 1–12 LEDs
Power Requirements
100-120/220-240 V AC 50/60 Hz 8VA (8 watts) on 3 pin IEC connector
Weight
5 lbs/2.2 Kg
Dimensions
19"W x 1¾"H x 6"D 482 x 44 x 155mm

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Front Panel Rear Panel
• IEC 3 pin AC connector and integral fuseholder. Replace fuse with correct
value only: 100 - 120 V AC 1 amp, 220-240 V AC 0.5 amp. Please also refer to voltage details on Page 2XLR Input connectors. Balanced Input connector wired Pin 1 Ground, Pin 2+ (Hot), Pin 3 – (Cold)
• Channel A Level control, variable from infinity to +6dB • Channel B Level control, variable from infinity to +6dB • Channel A and B switches and status LEDs
• 12 x Stereo Output switches and status LEDs • 12 x Numbered Marker Panels. A ‘scribble-strip’ for writing
down channel assigns
• Jack Output Connectors. 24 (2 per channel) ¼” TRS (TipRingSleeve)
balanced output jacks. Wired Tip +, Ring –, Sleeve Ground
• Channel A and B Input Jacks with associated Loop Outputs for connecting
to other equipment or another i-switch

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Introduction Thank you for choosing this ARX i-switch.We hope you enjoy using this unique product as much as we enjoyed creating it. As with all ARX equipment, it has undergone extensive factory testing and ‘burn in’ before shipping. To ensure continued trouble free use, please familiarise yourself with the contents of this manual beforeusing. About the i-switch The i-switch is a unique precision piece of test equipment, being able to individually
send a choice of two program sources to 12 pairs of powered loudspeakers, making it ideal for batch testing or demonstrating. For example, Channel A could have Pink Noise or a sine wave, and Channel B program material. Interlocking switches prevent more than one Input being selected at a time.
InterlockingswitchesalsopreventmorethanoneOutputpairbeingselectedatatime,
so that each Output pair can be stepped through by pressing the subsequent switch. A status LED shows which output is currently active.
All Inputs and Outputs are electronically balanced on Tip-Ring-Sleeve jack connec-
tors.
LoopoutputsallowtheInputsignalstobeloopedtoadditionali-switchunits,forlarger
testing arrays to be set up.
The i-switch’s ultra low noise figures come from extensive use of premium
components, plus care and attention to board design and layout. The result is superb, transparent audioqualityand theheadroomtoaccuratelyreproducethemostdemand- inginputsignal.
AandBInputGainsareadjustablefromOffthroughto+6dBvialevelcontrolsonthe
front panel. LED status indicators show which Input is currently active.
The unique ARX i-switch provides a truly innovative solution to testing multiple
powered speaker systems.
Every day, ARX Audio interface products solve audio problems for thousands of
people around the world.
Using the i-switch Applications Individually testing or demonstrating multiple powered speakers or similar devices. Setting Up Setting up your i-switch is very straightforward and intuitive.
Firstly, connect the unit to AC power.
Please Note: This is a dual voltage unit. It is essential that you check that the voltage on
the fuseholder cover below the AC connector on the rear of the chassis is set correctly before connecting it to AC power. See Page 2 for more details on this.
1. Connect your choice of signal to the Balanced TRS jack input connectors of
ChannelsAand B. Keep the levels reduced until all wiring has been checked
2. Connect the outputs of the i-switch to the inputs of your powered speakers. Up to
12 pairs can be connected.
3. Power up the speakers 4. Slowly bring up the i-switch input levels until the desired volume is reached
5. Step through the output switches and check that each speaker has been connected
properly. A status LED will light up to show which speaker is active.
Congratulations - You’re ready to go!