Clear-Com PS-702 User Manual
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Table of contents
Document Outline
- CONTENTS
- Important Safety Instructions
- Operation
- Introduction
- Description
- Fail Safe Power
- Front and Rear 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. If this condition persists, the microprocessor will disconnect po...
- 3. PROGRAM SEND ON/OFF: These toggle switches, one for each channel, connect program audio to each channel. Both channels receive the same signal from the rear panel program input. The number of active sends will not affect the overall send level to ...
- 4. PROGRAM SEND LEVEL: These controls (one for each channel) adjust the level of program heard in that channel. The program switch must be on for the control to function on that channel. (The level controls work in conjunction with the program trim (...
- 5. TEST TONE: This toggle switch turns on a test tone which can be heard on either or both channels when the program send switch for that channel is in the off position. It can be handy for identifying which intercom channel is which or for other tes...
- 6. A+B LINK SWITCH and INDICATOR: This toggle switch links the audio for channels A and B together. A yellow light indicates when the channels are linked. It can be useful to have both channels linked for rehearsals, but separated for performances.
- 7. INTERCOM LINE CONNECTOR and SWITCH: A single intercom line connector is located on the front panel for convenience. It can be switched between channels A and B with the associated toggle switch.
- Rear Panel
- 8. PROGRAM INPUT: This three-pin female XLR jack accepts a balanced or unbalanced line-level signal. This is typically a feed from a mixing console, an air feed from a studio to remote site over a phone line, or an audio cue track. Send levels to the...
- 9. AUDIO ADJUST: This control adjusts the overall input level of the external program coming into the PS-702. It is used with the program send level controls to achieve desired system program levels. Turn the control clockwise to increase the gain an...
- 10. TERM. ON/OFF: These switches (one per channel) select whether the PS-702 will provide the required termination for each channel. These should always be on unless there are other power supplies or terminated main stations in the system. If there a...
- 11. INTERCOM LINE CONNECTORS: There are three 3-pin male XLR jacks per channel, wired in parallel, or looped through. All the stations in the system are ultimately connected to the PS-702 through these jacks. Because intercom audio is bidirectional, ...
- 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 ...
- Front Panel
- Installation
- Quick Start
- 1. Unpack the unit and inspect for any damage that may have occurred during shipping.
- 2. Connect the proper AC mains cable to the outlet on the rear panel.
- 3. Install the PS-702.
- 4. Connect the intercom lines and program input as required. Connect the AC cord to the mains circuit.
- 5. Set the two termination switches on the rear panel to on.
- 6. Switch the power on. The green power light should be on and the two red short/overload lights should be off.
- 7. Switch the test tone and A+B link switches off. The yellow A+B link light should be off.
- 8. Select program sends and set program levels as required using program trim and program send level controls.
- 9. Set levels and 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
- Line Termination (Rear Panel)
- Program Input (Rear Panel)
- Rack Mounting
- System Checkout
- Check Termination
- 1. Using a multimeter, measure the resistance between pins #1 and #3 on one of the Channel A XLR connectors at the rear of the unit.
- 2. If the channel is terminated properly, then the resistance should measure approximately 4 kOhm. A very high channel resistance means the channel is not terminated. Channel resistance of 2 kOhm indicates a double-termination. If a double-terminatio...
- 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 ground. The measurement should read 10 Ohms. A high reading (over 100 Ohms) indicates that the...
- Check Intercom Cable Resistance
- Check Termination
- Final Tests
- 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. The call lights on all other stations on that channel should illuminate and then go out when the call button is released.
- 3. Adjust the sidetone null on all stations. (Refer to the manual for each specific unit for instructions.)
- Quick Start
- Maintenance
- Technical Specifications
- Glossary
- Limited Warranty