Introduction
The Clear-Com MS-702 is a 2-channel rackmount main station designed for professional communication systems. It provides a built-in 2-amp power supply and supports headset and speaker connections, making it suitable for various applications including aviation and recording environments. This manual provides essential information for the proper installation, operation, and maintenance of your MS-702 unit.
Figure 1: Front view of the Clear-Com MS-702 Intercom Main Station.
Safety Information
Please read and understand all safety instructions before operating this equipment. Failure to do so may result in injury or damage to the unit.
- Do not expose the unit to rain or moisture.
- Do not block ventilation openings.
- Ensure proper grounding for all electrical connections.
- Refer all servicing to qualified service personnel.
- This product is designed for indoor use only.
Package Contents
Verify that all items are present in the package:
- Clear-Com MS-702 Main Station Unit
- Rack Mount Kit
- Power Cable
- This User Manual
Setup
1. Rack Mounting
The MS-702 is designed for standard 1RU (1 Rack Unit) rack installation. Use the included rack mount kit to secure the unit into a standard 19-inch equipment rack. Ensure adequate ventilation around the unit.
2. Power Connection
- Connect the provided power cable to the AC inlet on the rear panel of the MS-702.
- Plug the other end of the power cable into a grounded AC power outlet.
- Ensure the power switch on the front panel is in the OFF position before connecting to power.
3. Intercom Connections
Connect headsets and other intercom devices to the appropriate XLR connectors on the front and rear panels. The MS-702 supports two independent intercom channels.
- Headset Connectors: Use standard 4-pin or 5-pin XLR connectors for headsets.
- Channel Connectors: Connect other intercom stations or beltpacks to the channel XLR connectors.
- Program Input: If applicable, connect an external audio source to the program input.
Operating Instructions
1. Powering On/Off
Flip the power switch on the front panel to the ON position to power on the unit. The power indicator light will illuminate. To power off, flip the switch to the OFF position.
2. Adjusting Volume
Use the dedicated volume controls on the front panel to adjust the listening level for each channel and the speaker output. Rotate clockwise to increase volume, counter-clockwise to decrease.
3. Talk Buttons
Press and hold the TALK button for the desired channel to speak to participants on that channel. Some units may have latching talk buttons; refer to the specific model's front panel layout.
4. Call Buttons
Press the CALL button to send a call signal to all stations on the selected channel. This typically illuminates a call light on the receiving stations.
Maintenance
Cleaning
To clean the unit, disconnect it from power. Use a soft, dry cloth to wipe down the exterior. Do not use liquid cleaners or abrasive materials, as these can damage the finish or internal components.
Storage
When not in use for extended periods, store the MS-702 in a cool, dry environment, away from direct sunlight and extreme temperatures. It is recommended to keep the unit in its original packaging or a protective case.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to unit | Power cable disconnected; Power switch off; Faulty power outlet | Check power cable connections; Ensure power switch is ON; Test power outlet with another device |
| No audio on a channel | Headset/speaker not connected; Volume too low; Faulty cable | Verify all connections; Increase volume; Test with a different headset/cable |
| Distorted audio | Volume too high; Improper impedance matching; Faulty headset/speaker | Reduce volume; Check system impedance; Test with a different headset/speaker |
Specifications
| Feature | Detail |
|---|---|
| Model Name | MS-702 |
| Connectivity Technology | Wired |
| Included Components | Rack Mount |
| Material | Metal |
| Specific Uses For Product | Professional Communication |
| Recommended Uses For Product | Aviation, Recording |
| Compatible Devices | Speaker |
| Control Type | Media Control |
| Number of Items | 1 |
| Manufacturer | Clear-Com |
| Power Supply | Built-in 2-amp |
| Rack Unit Size | 1RU |
| UL Listed | Yes |
Warranty Information
Clear-Com products are covered by a limited warranty against defects in materials and workmanship. The specific terms and duration of your warranty may vary by region and product. Please refer to the warranty card included with your product or visit the official Clear-Com website for detailed warranty information and registration procedures.
Customer Support
For technical assistance, service, or further information regarding your Clear-Com MS-702, please contact Clear-Com customer support. Before contacting support, please have your model number (MS-702) and serial number ready.
You can find contact information on the official Clear-Com website: www.clearcom.com/support