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Summary of Contents for Clear-Com PS-702
- Page 1 CLEAR-COM ENCORE PS-702 TWO-CHANNEL POWER SUPPLY I N S T R U C T I O N M A N U A L...
- Page 2 All rights reserved. Clear-Com, the Clear-Com logo, and Clear-Com Concert are trademarks or registered trademarks of HM Electronics, Inc. The software described in this document is furnished under a license agreement and may be used only in accordance with the terms of the agreement.
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Page 3: Table Of Contents
PS-702 Block Diagram........ - 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...
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Page 5: Important Safety Instructions
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. Please read and follow 7. Do not block any ventilation openings. Install in accordance with the these instructions before manufacturer’s instructions. - Page 6 Figure 1: Safety Symbols EMC AND SAFETY The PS-702 Two-Channel Power Supply meets all relevant CE, FCC, UL, and CSA specifications set out below: EN55103-1 Electromagnetic compatibility. Product family standard for audio, video, audio-visual, and entertainment lighting control apparatus for professional use.
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Page 7: Operation
Use of a switching power supply allows the PS-702 to operate with any AC line voltage from 100 to 240 volts AC at 50 or 60 Hz. The sturdy metal chassis and extra-thick front panel with integral rack ears maintains legendary Clear-Com ruggedness. - Page 8 AC line voltage, momentary shorts on the DC power lines to the stations, and excessive peak loads during “power-on”conditions. The following features are incorporated into the PS-702’s power supply: • AUTOMATIC SHORT CIRCUIT PROTECTION: The PS-702’s internal power supply checks each channel for a short or current overload.
- Page 9 • LOW NOISE CIRCUITRY: The direct current outputs of the PS-702 contain very little hum and noise. The PS-702 does not contribute to audible noise in the remote stations and beltpacks. Note: Power supply lines connected together at remote stations will disable the individual channel short circuit protection feature.
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Page 10: Front And Rear Panels
Figure 1-2: Front and Read Panels FRONT PANEL 1. POWER SWITCH: Turns the AC power to the PS-702 on and off. The green power light will illuminate when the power is on. 2. SHORT/OVERLOAD INDICATORS: If a short circuit or overload condition appears on either of the intercom channel outputs, the red short/overload light for that channel will illuminate. -
Page 11: Rear Panel
12. AC POWER SUPPLY INPUT: Connects to AC with an IEC cable. The PS-702 will accept any line voltage between 100 and 240 volts AC at 50 to 60 Hz. It will automatically adjust to the line voltage. There is no need for a selector switch or an external fuse. - Page 12 1 - 6 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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Page 13: Installation
Any single-channel station or channel of a multi-channel station connected on a line plugged into Channel A of the PS-702 will be “party-lined” with all the other stations on that same channel. In a multi-channel system, the goal is to assign specific people to the correct group, (i.e., the other people with whom they need to be in contact the most). -
Page 14: Line Termination (Rear Panel)
A line with double or multiple terminations will cause low levels and severe imbalance of hybrid null circuits. If the PS-702 is the only power supply in the 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. -
Page 15: System Checkout
SYSTEM CHECKOUT Before you turn on the power: Check Termination There should be one and only one termination for each channel in the system. This termination is usually set to on at the main station or power supply. To ascertain that only one termination is present on the channel, perform the following test: 1. -
Page 16: Final Tests
FINAL TESTS After you turn the power on: 1. Check for proper voltage on pin #2 of any intercom line or jack in 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. -
Page 17: Maintenance
TROUBLESHOOTING TIPS SYMPTOM CAUSE SOLUTION System does not operate. No No AC power to the PS-702. Check AC connection and cable. power to the PS-702. Green Plug into dependable AC source. power light is not illuminated and no short/overload lights are... - Page 18 System feedback (acoustical) Volume control at the remote station Adjust. is set too high. Channel unterminated. Set the PS-702 termination switch for that channel to the on position. A headset extension cord was used. Headset extension cords are not recommended.
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Page 19: Ps-702 Block Diagram
PS-702 BLOCK DIAGRAM The following is a block diagram of the PS-702: PS-702 T es t On/Off S witching J ack C hannel A – B P ower S upply S elect Channel A Module Power P ower Controller Inlet... - Page 20 3 - 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...
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Page 21: Technical Specifications
TECHNICAL SPECIFICATIONS PS-702 TWO-CHANNEL POWER SUPPLY dBu is an absolute measurement. 0 dBu is referenced to 0.775 volts RMS Program Line Input Maximum Level before Clipping >= 20dBu Input Impedance >= 5KΩ Frequency Response Program Input - Party Line 200 - 20KHz ± 3dB... -
Page 22: Rear Panel Connectors
Weight 6.16 lbs. (2.80 kg) Notice About Specifications While Clear-Com makes every attempt to maintain the accuracy of the information contained in its product manuals, that information is subject to change without notice. Performance specifications included in this manual are design-center specifications and are included for customer guidance and to facilitate system installation. -
Page 23: Glossary
Bridging, High Impedance (hi-Z): A method of connecting to an audio line (such as Clear-Com) without loading or taking appreciable power from that line. Simply stated, as you add more and more stations to the line, the volume remains constant. - Page 24 hear their voices and instruments on stage. IFB (program interrupt) disconnects the program audio source while the talk button on the main station is pushed. ISO: A private conversation path. An ISO channel allows one to simply push a button and transfer themselves and the person they wish to speak with to an isolated channel.
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Page 25: Limited Warranty
LIMITED WARRANTY Clear-Com warrants that at the time of purchase, the equipment supplied complies with any specification in the order confirmation when used under normal conditions, and is free from defects in workmanship and materials during the warranty period. Clear-Com offers 24 x 7... -
Page 26: Warranty Repairs And Returns
Contract, 24-hour customer support is offered immediately upon purchase of such agreement. For more information, contact your authorized dealer, distributor, or sales representative. Instructions for reaching Clear-Com’s User Support Centers are given below. Americas and Asia-Pacific Headquarters California, United States Tel: +1.510.337.6600 Email: CustomerServicesUS@clearcom.com Europe, Middle East, and Africa Headquarters Cambridge, United Kingdom Tel: +44 1223 815000 Email: SalesSupportEMEA@clearcom.com... -
Page 27: Non-Warranty Repairs And Returns
1-year or 90-day warranty. SERVICE CONTRACT Clear-Com also offers service contracts that provide 24 x 7 telephone support, advance replacements, training, proactive maintenance, on-site visits, and no charge for repair or replacement of equipment. For more information, contact your authorized dealer, distributor, or sales representative. - Page 28 BE DEFECTIVE WITHIN THE WARRANTY PERIOD AS AFORESAID. This warranty does not cover any damage to a product resulting from cause other than part defect and malfunction. The Clear-Com warranty does not cover any defect, malfunction, or failure caused beyond the control of...
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