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P S - 7 0 2   T W O - C H A N N E L   P O W E R   S U P P L Y  

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IMPORTANT SAFETY 

INSTRUCTIONS

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings.  Install in accordance with the 

manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, 

stoves, or other apparatus (including amplifiers) that produce heat. 

9. Do not defeat the safety purpose of the polarized or grounding-type plug. 

A polarized plug has two blades, with one wider than the other. A 

grounding-type plug has two blades and a third grounding prong. The 

wide blade or the third prong are provided for your safety. If the provided 

plug does not fit into your outlet, consult an electrician for replacement of 

the obsolete outlet. 

10. Protect the power cord from being walked on or pinched particularly at 

plugs, convenience receptacles, and the point where they exit from the 

apparatus. 

11. Only use attachments/accessories specified by the manufacturer. 
12. Use only with the cart, stand, tripod, bracket, or table specified by the 

manufacturer, or sold with the apparatus.  When a cart is used, use caution 

when moving the cart/apparatus combination to avoid injury from 

tip-over.

13. Unplug this apparatus during lightning storms or when unused for long 

periods of time. 

14. Refer all servicing to qualified service personnel. Servicing is required 

when the apparatus has been damaged in any way, such as power-supply 

cord or plug is damaged, liquid has been spilled or objects have fallen into 

the apparatus, the apparatus has been exposed to rain or moisture, does 

not operate normally, or has been dropped. 

15.

WARNING:

 To reduce the risk of fire or electric shock, do not expose 

this product to rain or moisture.

Please familiarize yourself with the safety symbols in Figure 1. When you 
see these symbols on this product, they warn you of the potential danger 
of electric shock if the main station is used improperly. They also refer 
you to important operating and maintenance instructions in the manual. 

Please read and follow 
these instructions before 
operating this product. 

Summary of Contents for PS-702

Page 1: ...PS 702 TWO CHANNEL POWER SUPPLY I N S T R U C T I O N M A N U A L CLEAR COM ENCORE...

Page 2: ...engineering No part of this document may be reproduced in any form by any means without prior written authorization of Clear Com an HME Company Clear Com Offices are located in California USA Cambridg...

Page 3: ...m Input Rear Panel 2 2 Rack Mounting 2 2 System Checkout 2 3 Check Termination 2 3 Check Intercom Cable Resistance 2 3 Final Tests 2 4 MAINTENANCE 3 1 Introduction 3 1 Troubleshooting Tips 3 1 PS 702...

Page 4: ...P S 7 0 2 T W O C H A N N E L P O W E R S U P P L Y i i...

Page 5: ...ey exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the appa...

Page 6: ...equirements And thereby compliance with the requirement of Electromagnetic Compatibility Directive 2004 108 EC and Low Voltage Directive 2006 95 EC This device complies with Part 15 of the FCC Rules O...

Page 7: ...or your communications needs DESCRIPTION The Clear Com PS 702 is a single rack space one or two channel intercom power supply which can provide 1 2 ampere 2 amperes peak during call signals and other...

Page 8: ...nd long term shorts and overload conditions After the first few times a short or overload occurs the power supply will try to restore power after only 0 5 seconds If the short or overload persists or...

Page 9: ...atically detect the actions of other power supplies during overloads and short circuits to restore power as quickly as possible MULTI CHANNEL REMOTE STATIONS MAINTAIN THE POWER LINE ISOLATION The RM 7...

Page 10: ...line connected to the affected channel Its red short overload light should go out This indicates a short in that line Follow that intercom line connecting and disconnecting cables along the line until...

Page 11: ...vidual channels are controlled with a combination of the program trim level and the program send levels on the channels This feed can be fed to either or both intercom lines 9 AUDIO ADJUST This contro...

Page 12: ...P S 7 0 2 T W O C H A N N E L P O W E R S U P P L Y 1 6...

Page 13: ...nd sidetone nulls at remote stations 10 The intercom system should now be operating properly 11 Read the rest of this manual for further information INSTALLATION INTERCOM LINE CONNECTION The PS 702 pr...

Page 14: ...system no other power supplies or powered main stations are in the system the termination switch on each channel of the PS 702 should be switched to on Simply toggle the rear panel switch labeled term...

Page 15: ...r the location 3 Repeat for the other channels 4 Check resistance between chassis ground and pin 1 Using an ohmmeter measure the resistance from pin 1 on the main station or power supply to chassis gr...

Page 16: ...n a channel It should read 26 30 volts 2 Test for proper operation of call signaling Activate the call signal on any belt pack or station The call lights on all other stations on that channel should i...

Page 17: ...ource PS 702 has an internal power supply failure Unit requires servicing Red short overload light illuminated Short or overload on that channel due to a shorted or mis wired cable Remove cables one a...

Page 18: ...ground System feedback acoustical Volume control at the remote station is set too high Adjust Channel unterminated Set the PS 702 termination switch for that channel to the on position A headset exten...

Page 19: ...Power S upply Module Program Input Channel A Power Controller Channel A Voltage Sensor Channel A Current Sensor Channel B Power Controller Channel B Voltage Sensor Channel B Current Sensor Ch B Term C...

Page 20: ...P S 7 0 2 T W O C H A N N E L P O W E R S U P P L Y 3 4...

Page 21: ...ty Line 70dBu Max Gain Program Input Party Line 16dB Min Gain Program Input Party Line 20dB Mains Power Input Voltage Range 100 240 VAC Input Frequency Range 50 60 Hz Input Power 60 VAC Output Voltage...

Page 22: ...tch 2 Overload LEDs 1 Link indicator LED 1 Power indicator LED 1 Power switch Environmental 32 122o F 0 50o C Dimensions 19 in W x 1 75 in H x 7 5 in D 483 mm x 44 mm x 190 mm Weight 6 16 lbs 2 80 kg...

Page 23: ...the majority of Clear Com products It is a visual indicator on a station lamp or LED used to attract the attention of an operator who has removed the headset Channel A channel is the line that connec...

Page 24: ...to Point One path to one person Program Audio source that is fed into the intercom channels Program Interrupt Disconnects the audio source while the talk button on the main station is pushed IFB Remo...

Page 25: ...ones and spare parts have a limited warranty of one year UHF wireless IFB products have a limited warranty of one year UHF wireless intercom systems have a limited warranty of three years All other Cl...

Page 26: ...warranty period has expired the User Support Center will continue to provide telephone support if you have purchased an Extended Warranty or Service Contract In these cases you will have access to tel...

Page 27: ...y provides 24 x 7 customer support in addition to the warranty immediately upon purchase of the warranty extension Note Clear Com does not offer warranty extensions on UHF wireless intercom systems or...

Page 28: ...ontrol of Clear Com including unreasonable or negligent operation abuse accident failure to follow instructions in the manual defective or improperly associated equipment attempts at modification and...

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