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CLEAR COM对讲系统

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产品品牌:
型号:MS-704
CLEAR-COM对讲系统MS-704
预估货期:
关  键  词:CLEAR-COM对讲机系统MS-704MS-702
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CLEAR-COM对讲系统MS-704技术参数

Technical Specifications


d Bu is an absolute measurement. 0 d Bu is referenced to 0.775 volts RMS

Station Capacity

Up to 55 RS-701 beltpacks or 10 speaker stations or 12 headset stations distributed over all channels

Panel Microphone Input

Input Type: Electret Input Impedance: >=2K
Mic Limiter Threshold: 0dBu ±3dB Mic Limiter
Range: >= 20dB

Headset Microphone Input

Input Type: Dynamic
Input Impedance: >= 1K
Mic Limiter Threshold: 0dBu ±3dB
Mic Limiter Range: >= 17dB

Program Line Input

Maximum Level before Clipping: >= 20dBu
Input Impedance: >= 5K

Headset Output

Load Impedance: >= 8 Output
Impedance: <= 25
Output Limiter Threshold: +5dBu ± 3dB
Maximum Output Level before Distortion: >= 17dBu

peaker Output

Load Impedance: >= 4
Max Output Level before 1% Distortion:20dBu ± 2dBu

Party Line Output

Output Noise: < -74dBu
Output Impedance: >10K

Partyline Input

Crosstalk: < -60dB
Max level before Clipping: >= 12dBu
Sidetone Null Capability: > 25dB

Stage Announce/Balanced Line Out

Type: Balanced
Output Impedance: >= 200
Load Impedance: >= 600

IFB/Hot Mic

Type: Unbalanced
Output Impedance: 150 Load
Impedance: >= 600

Frequency Response

Panel Mic - Partyline: 600 - 10KHz ± 3dB
Headset Mic - Partyline: 200 - 12KHz ± 3dB
Headset Mic - Line Out: 200 - 12KHz ± 3dB
Program Input - Partyline: 100 - 17KHz ± 3dB
Program Input - Headset Out:200 - 10KHz ± 3dB
Program Input - Speaker Out:300 - 10KHz ± 3dB
Partyline - Headset Out: 200 - 10KHz ± 3dB
Partyline - Speaker Out: 300 - 10KHz ± 3dB

Max Distortion

Panel Mic - Partyline: <= 0.5%
Headset Mic - Partyline: <= 0.5%
Headset Mic - Line Out: <= 0.5%
Program Input - Partyline: <= 0.2%
Program Input - Headset Out: <= 0.2%
Program Input - Speaker Out: <= 0.5%
Partyline - Headset Out: <= 0.2%
Partyline - Speaker Out: <= 0.5%

Noise

Panel Mic - Partyline: < -65dBu
Headset Mic - Partyline: < -70dBu
Headset Mic - Line Out: < -55dBu
Program Input - Partyline: < -85dBu
Program Input - Headset Out: < -60dBu
Program Input - Speaker Out: < -60dBu
Partyline - Headset Out: < -50dBu
Partyline - Speaker Out: < -50dBu

Max Gain

Panel Mic - Partyline: >= 37dB
Headset Mic - Partyline: 41dB ± 2dB
Headset Mic - Hot Mic Out: 55dB ± 3dB
Headset Mic - Announce Out: 55dB ± 3dB
Program Input - Partyline: >= -16dB
Program Input - Headset Out: >= 18dB
Program Input - Speaker Out: >= 24dB
Partyline - Headset Out: >= 34dB
Partyline - Speaker Out: >= 40dB

Min Gain

Panel Mic - Partyline: <= 25dB

Mains Power

Input Voltage Range: 100 - 240 VAC
Input Frequency Range: 50 - 60 Hz
Input Power: <= 60
VAC Output Voltage: 30 VDC ± 0.5V
Output Current per Channel (Continuous): 1.2 A
Output Current per Channel (Peak): 2 A (Do not exceed the 1.2A rating for more than 2 seconds per 1 minute period)
Short Circuit Recovery Time (1st short): <= 0.5 sec
Short Circuit Recovery Time >= 20 shorts in 20sec): <= 20 sec

Environmental

32 - 122°F (0 - 50°C)

Dimensions

3.5 x 19 x 10.5 in (HxWxD) (88 x 483 x 267 mm)

Weight

10.9 lbs (4.9 kg)

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CLEAR-COM对讲系统介绍

Encore™ is a 2-wire analog partyline system with intuitive plug-and-play design and superior “Clear-Com Sound”audio quality.

 

Description

The MS-704 is a 2RU four-channel main station with programmable front panel buttons, individual channel short-circuit protection, individual channel volume control, and a regulated fail-safe power supply. The MS-704 supports up to 55 beltpacks or 10 speaker stations, or 12 headset stations.

 

Audio Sources and Monitoring

The MS-704 accepts five separate program audio sources: four line-level balances inputs and one assignable line-level input. The assignable program input accepts a balanced signal and is designed for monitoring external audio. The four balanced program inputs can be used to create individual program feeds on the intercom channels. The MS-704 can monitor intercom activity on one or all four channels with individual volume level controls. Monitoring intercom activity is possible through a headset or the internal high-sensitivity loudspeaker.

 

Talk Selection

The MS-704 has mic pre-amps with limiters and speech-shaping circuits. An individual electronic momentary/latching Talk button is available for each channel. Illuminated dual-action Talk buttons light an LED dimly when latched: blue-color while in standby, amber-color when latched. The latching feature can be disabled. The channels can be accessed separately or simultaneously without tying them together. A selector switch toggles between the headset or microphone. The Talk buttons can also be controlled with a footswitch.

 

Announce Output

For paging, the MS-704 provides a balanced, line-level output signal to a ¼-inch TRS connector on the rear panel. The front panel Announce button activates the output and th Announce relay. The relay circuit, on a separate ¼-inch TRS connector, is typically used to mute monitors.

 

Call Signaling

The MS-704 has individual Call buttons with visual call signaling for each channel on the partyline. The visual signal will flash brightly and will emit an audible signal if the remote station operator holds the Call button for more than 2 seconds. The call signaling feature can be programmed to the Talk buttons.

 

描述

MS-704是一个2RU四通道主站,具有可编程前面板按钮、独立通道短路保护、独立通道音量控制和稳压故障安全电源。 MS-704支持多达55个腰包或10个扬声器站,或12个耳机站。

 

音频源和监控

MS-704 接受五个独立的节目音频源:四个线路电平平衡输入和一个可分配的线路电平输入。可分配的程序输入接受平衡信号,专为监控外部音频而设计。四个平衡的节目输入可用于在对讲频道上创建单独的节目馈送。 MS-704 可以通过单独的音量控制监控一个或所有四个通道上的对讲活动。可以通过耳机或内部高灵敏度扬声器监控对讲活动。

 

谈话选择

MS-704 具有带限制器和语音整形电路的麦克风前置放大器。每个通道都有一个单独的电子瞬时/锁定通话按钮。带灯的双动通话按钮在锁定时会发出微弱的 LED 灯:待机时为蓝色,锁定时为琥珀色。可以禁用锁定功能。这些通道可以单独或同时访问,而无需将它们捆绑在一起。选择器开关在耳机或麦克风之间切换。通话按钮也可以通过脚踏开关进行控制。

 

宣布输出

对于寻呼,MS-704为后面板上的1/4英寸TRS连接器提供平衡的线路电平输出信号。前面板Announce按钮激活输出和Announce继电器。继电器电路位于单独的¼英寸TRS连接器上,通常用于使监视器静音。

 

呼叫信令

MS-704有单独的呼叫按钮,partyline上的每个通道提供可视呼叫信号。如果远程站操作员按住呼叫按钮超过2秒,视觉信号将明亮闪烁并发出声音信号。呼叫信号功能可以编程到通话按钮。

 

CLEAR-COM对讲系统其他常用型号:

CLEAR-COM MS-702

CLEAR-COM MS-704

CLEAR-COM SB-704

CLEAR-COM CS-702

 

CLEAR-COM Walkie talkie NEW + ORIGINAL+ ONE YEAR WARRANTY

 

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如果有任何关于CLEAR-COM对讲系统MS-704的疑问,请随时与我们沟通(021-31006702)。我们将尽全力解决您的问题。

 

If you have any question for CLEAR-COM products, please feel free to dial 0086-21-3100 6702/ send request e80ail to sales@ize-industries.co80 / browse our website:  .


CLEAR-COM对讲系统MS-704产品介绍

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