1. Киришүү
The Clear-Com MS-704 is a robust 4-channel headset/speaker main station designed for professional audio communication environments. It features a built-in 2-amp power supply capable of supporting various Clear-Com beltpacks, speaker stations, and headset stations. This manual provides essential information to ensure safe and efficient use of the MS-704.
2. Коопсуздук маалыматы
ЭСКЕРТҮҮ: Өрттүн же шок коркунучунун алдын алуу үчүн, бул жабдууну жамгырга же нымдуулукка чыгарбаңыз.
CAUTION: To prevent electric shock, do not remove the cover. No user-serviceable parts are inside. Refer all servicing to qualified service personnel.
Always ensure proper ventilation around the unit. Do not block ventilation openings. Use only specified power cables and accessories. Disconnect power before cleaning or servicing.
3. Пакеттин мазмуну
Пакетиңизде төмөнкү заттар бар экенин текшериңиз:
- Clear-Com MS-704 4-Channel Intercom Main Station
- Электр кабели
- Колдонуучунун Колдонмосу (бул документ)
4. Продукт бүтүп калдыview
4.1 Front Panel Controls and Connectors
The front panel provides access to all primary operational controls and headset connections.

Сүрөттүн сүрөттөлүшү: Толук фронт view of the Clear-Com MS-704 Main Station. It is a black, rack-mountable unit with various buttons, knobs, and jacks. Key features visible include a Panel Mic input, Headset connector, Listen and Talk buttons for four channels (A, B, C, D), a Volume knob, Speaker grille, and various indicator lights and smaller controls for functions like Announce, All Talk, Remote Mic Kill, and Program/Listen Levels.

Сүрөттүн сүрөттөлүшү: Жакын план view of the channel controls on the Clear-Com MS-704 front panel. It shows the illuminated green 'Listen' buttons and blue 'Talk' buttons for Channels B, C, and D, along with the 'Call' buttons below them. The texture of the buttons and the clear labeling are visible.
- Panel Mic: Input for a panel microphone.
- Гарнитура: XLR connector for connecting a headset.
- Channel A/B/C/D Listen Buttons: Green illuminated buttons to monitor audio on specific channels.
- Channel A/B/C/D Talk Buttons: Blue illuminated buttons to speak on specific channels.
- Көлөмү: Rotary knob to adjust the overall speaker/headset volume.
- Жарыялоо: Button to activate the announce function.
- Бардык сүйлөшүү: Button to speak on all channels simultaneously.
- Remote Mic Kill: Button to remotely disable microphones on connected beltpacks.
- Program Level / Listen Level: Rotary controls for adjusting program input and listen levels.
4.2 Арткы панелдин туташтыргычтары
The rear panel provides connections for power, intercom lines, and auxiliary functions.

Сүрөттүн сүрөттөлүшү: Толук арткы бет view of the Clear-Com MS-704 Main Station. It shows the power input with an on/off switch on the left, followed by a 1/4-inch jack labeled 'Hot Mic IFB'. To the right are multiple 3-pin XLR connectors for Channels A, B, C, and D, each with 'On/Off' and 'Term' switches. Further right are 'Program In' (XLR) and 'Auxiliary' (DB-9) connectors, and 'Announce Out' (XLR). Warning labels are also visible.
- Кубат киргизүү: IEC power connector with an adjacent power switch.
- Channel A/B/C/D (XLR): 3-pin XLR connectors for connecting intercom lines to beltpacks, speaker stations, or other intercom systems. Each channel has 'On/Off' and 'Term' (termination) switches.
- Program In (XLR): Input for external program audio.
- Announce Out (XLR): Output for the announce function.
- Auxiliary (DB-9): Multi-pin connector for auxiliary functions.
- Hot Mic IFB: 1/4-inch jack for IFB (Interruptible Foldback) input.
5. Орнотуу
5.1 Кубат туташтыруу
- Ensure the MS-704 power switch on the rear panel is in the 'OFF' position.
- Connect the provided power cable to the IEC power input on the rear panel.
- Электр кабелинин экинчи учун ылайыктуу AC розеткага сайыңыз.
5.2 Connecting Intercom Devices
The MS-704 supports up to 40 RS-701 beltpacks, 10 speaker stations, or 12 headset stations.
- Connect your Clear-Com beltpacks, speaker stations, or headset stations to the Channel A, B, C, or D XLR connectors on the rear panel using standard 3-pin XLR cables.
- Ensure the 'On/Off' switch for each connected channel is set to 'On'.
- If connecting to the end of an intercom line, set the 'Term' switch for that channel to 'On' to properly terminate the line. For mid-line connections, set 'Term' to 'Off'.
5.3 Headset/Panel Mic Connection
- Connect your headset to the 4-pin XLR 'Headset' connector on the front panel.
- Alternatively, connect a panel microphone to the 'Panel Mic' jack.
6. Иштөө нускамалары
6.1 Күйгүзүү/өчүрүү
- To power on the unit, flip the power switch on the rear panel to the 'ON' position.
- Өчүрүү үчүн, кубат которгучун "OFF" абалына буруңуз.
6.2 Негизги байланыш
- угуу: Press the green 'Listen' button for the desired channel (A, B, C, or D) to monitor audio on that channel. The button will illuminate when active.
- Сүйлөшүүдө: Press the blue 'Talk' button for the desired channel to speak on that channel. The button will illuminate when active. Release the button to stop talking.
- Үндү тууралоо: Use the 'Volume' knob on the front panel to adjust the overall listening level for the speaker or headset.
6.3 Өркүндөтүлгөн функциялар
- Бардык сүйлөшүү: Press the 'All Talk' button to communicate simultaneously on all active channels.
- Жарыялоо: Press the 'Announce' button to send an announcement through the designated announce output.
- Remote Mic Kill: Press the 'Remote Mic Kill' button to remotely disable the microphones on all connected beltpacks.
- Program Input: Connect an external audio source to the 'Program In' XLR on the rear panel. Adjust the 'Program Level' knob on the front panel to mix this audio into the intercom channels.
- IFB Channels: The MS-704 includes 3 IFB channels. Refer to the full technical manual for detailed configuration and use of IFB.
7. Техникалык тейлөө
7.1 Тазалоо
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.
7.2 Жалпы кам көрүү
Store the MS-704 in a cool, dry environment away from direct sunlight and extreme temperatures. Avoid dropping or subjecting the unit to severe impacts. Ensure proper ventilation during operation to prevent overheating.
8. Кыйынчылыктарды
This section addresses common issues you might encounter with your MS-704.
- Кубат жок:
- Check that the power cable is securely connected to both the unit and the AC outlet.
- Ensure the rear panel power switch is in the 'ON' position.
- Verify that the AC outlet is functional.
- No Audio on a Channel:
- Ensure the 'Listen' button for the desired channel is pressed and illuminated.
- Check all cable connections for that channel, including to beltpacks or other stations.
- Verify that the 'On/Off' switch for the channel on the rear panel is set to 'On'.
- Adjust the 'Volume' knob on the front panel.
- Cannot Talk on a Channel:
- Ensure the 'Talk' button for the desired channel is pressed and illuminated.
- Check your headset or panel microphone connection.
- Verify that the 'Remote Mic Kill' function is not active.
If problems persist, contact qualified service personnel or Clear-Com support.
9. Техникалык шарттар
| Модел | MS-704 |
| Бренд | Ачык-Com |
| Каналдар | 4 |
| Электр камсыздоо | Built-in 2-amp |
| Кубаттуулугу | Up to 40 RS-701 beltpacks, 10 speaker stations, or 12 headset stations |
| Жыштык диапазону | 100 - 17кГц |
| Материал | Металл |
| Өлчөмдөрү (L x W x Y) | 25 x 6 x 15 дюйм |
| Элемент Салмагы | 13.82 фунт |
| Башкаруу түрү | Touch Control |
| Байланыш технологиясы | Зымдуу |
| UPC | 642892781270 |
10. Кепилдик жана колдоо
For detailed warranty information, please refer to the official Clear-Com website or the warranty card included with your product. For technical support or service inquiries, please contact Clear-Com customer service directly.





