PX-GL001A音频信号隔离器说明书
隔离器说明书
ｍ XP 系列信号隔离器 ｃｏ 概述 ． XP 系列信号隔离器(一进一出，一进二出)是在自动化控制系统中对各种工业信号变送、转换、隔离、传输、运算的仪表，可 ｎ 与各种工业传感器配合，取回参数信号，隔离变送传输，满足用户本地监视远程数据采集的需求。广泛应用于机械、电气、电信、 ｏ 电力、石油、化工、钢铁、污水处理、楼宇建筑等领域的数据采集、信号传输转换、PLC、DCS 等工业测控系统，用来完善和补充 ｐ 系统模拟∣/O 插件功能，增加系统适用性和现场环境的可靠度。 ｕｒ 特点 ｓ 测量：直流电压、直流电流等 ． 精度：≤±0.1％RO ｗ 隔离：输入、输出、电源三方完全隔离，抗干扰能力强 ｗ 电源：DC24V 或 AC220V ｗ 支持带电热插拨装卸方便、精度高、线形度高、抗干扰性强、长期工作的稳定性
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Model:XP-V-V010-A420-D Input: 0~10Vdc Output1:4~20mAdc Aux.power:DC24V 描述：此产品为一进一出信号隔离器，一路 0~10Vdc 直流电压信号输入,隔离变送输出一路 4~20mAdc 直流电 流信号;辅助电源为直流 24V.
苏州迅鹏仪器仪表有限公司
选型代码
苏州迅鹏仪器仪表有限公司
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外形尺寸
95(L)*23(W) *120(H)mm
ＸＰ系列信号隔离器
35mm 导轨卡装；主机与底座可以插拔分离
接线图
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常用规格实例
Model:XP-A-A420-2A420-D（等同于 XP-A-A420-A420A420-D，可以简写成 XP-A-A420-2A420-D） Input: 4~20mAdc Output1:4~20mAdc ; Output2:4~20mAdc Aux.power:DC24V 描述：此产品为一进二出信号隔离器，一路 4~20mA 直流信号输入,隔离变送输出两路信号,输出 1 为 4~20mAdc 直流电流信号;输出 2 也为 4~20mA 直流电流信号;辅助电源为直流 24V.
信号隔离器及功能及工作原理
信号隔离器及功能及工作原理信号隔离器的功能及工作原理信号隔离器的工作原理及功能是什么？工作原理：首先将变送器或仪表的信号，通过半导体器件调制变换，然后通过光感或磁感器件进行隔离转换，然后再进行解调变换回隔离前原信号，同时对隔离后信号的供电电源进行隔离处理。
保证变换后的信号、电源、地之间绝对独立。
功能：一：保护下级的控制回路。
二：消弱环境噪声对测试电路的影响。
三：抑制公共接地、变频器、电磁阀及不明脉冲对设备的干扰；同时对下级设备具有限压、额流的功能是变送器、仪表、变频器、电磁阀PLC/DCS输入输出及通讯接口的忠实防护。
DIN系列导轨结构，易于安装，可有效的隔离：输入、输出和电源及大地之间的电位。
能够克服变频器噪声及各种高低频脉动干扰。
信号隔离器的主要类型有哪些？隔离器：工业生产中为增加仪表负载能力并保证连接同一信号的仪表之间互不干扰，提高电气安全性能。
需要将输入的电压、电流或频率、电阻等信号进行采集、放大、运算、和进行抗干扰处理后，再输出隔离的电流和电压信号，安全的送给二次仪表或plc\dcs使用。
配电器：工业现场一般需要采用两线制传输方式，既要为变送器等一次仪表提供24V配电电源，同时又要对输入的电流信号进行采集、放大、运算、和进行抗干扰处理后，再输出隔离的电流和电压信号，供后面的二次仪表或其它仪表使用。
安全栅：一些特殊的工业现场（如燃气公司和化工厂）不但需要两线制传输，既提供配电电源又有信号隔离功能，同时还需要具有安全火花防爆的性能，可靠地遏制电源功率、防止电源、信号及地之间的点火，限流、降压双重限制信号及电源回路，把进入危险场所的能量限制在安全定额范围内。
信号隔离器安装维护应注意哪些事项？由于生产厂家不同，对隔离器的生产工艺、接线定义也不都相同，但使用场合基本相同，所以对产品的防护要求及维护基本相同。
1．使用前应详细阅读说明书。
2．作为信号隔离使用时，应将输入端串入环路电路中，输出端接取样回路。
信号隔离器的作用和使用注意事项
信号隔离器的作用和使用注意事项信号隔离器在工业生产过程中实现监视和控制需要用到各种自动化仪表、控制系统和执行机构，它们之间的信号传输既有微弱到毫伏级、微安级的小信号，又有几十伏，甚至数千伏、数百安培的大信号；既有低频直流信号，也有高频脉冲信号等等，构成系统后往往发现在仪表和设备之间信号传输互相干扰，造成系统不稳定甚至误操作。
出现这种情况除了每个仪表、设备本身的性能原因如抗电磁干扰影响外，还有一个十分重要的因素就是由于仪表和设备之间的信号参考点之间存在电势差，因而形成“接地环路”造成信号传输过程中失真。
因此，要保证系统稳定和可靠的运行，“接地环路”问题是在系统信号处理过程中必须解决的问题。
解决“接地环路”的方法根据理论和实践分析，有三种解决方案：第一种方案：所有现场设备不接地，使所有过程环路只有一个接地点，不能形成回路，这种方法看似简单，但在实际应用中往往很难实现，因为某些设备要求必须接地才能保证测量精度或确保人生安全，某些设备可能因为长期遭到腐蚀和磨损后或气候影响而形成新的接地点。
第二种方案：使两接地点的电势相同，但由于接地点的电阻受地质条件及气候变化等众多因素的影响，这种方案其实在实际中无法完全能做到。
第三种方案：在各个过程环路中使用信号隔离方法，断开过程环路，同时又不影响过程信号的正常传输，从而彻底解决接地环路问题。
作为一种连接现场仪表和控制室设备的电子接口模块，信号隔离器通常安装在控制室机柜的导轨上，新手朋友对信号隔离器的使用，还有些陌生，对有哪些注意事项尚不十分了解，下面说说信号隔离器的使用注意事项有哪些呢？第一：信号隔离器使用前根据装箱单，以及产品标签，仔细核对和确认产品数量、型号和规格，并认真阅读信号隔离器的使用说明书；第二：信号隔离器的使用环境应无导电粉尘，无腐蚀性气体、无强烈冲击和振动。
第三：信号隔离器为一体化结构，不可拆卸，同时应避免碰撞和跌落，请勿涂改和撕下产品上的任何标贴。
GL-A59 短路隔离器
GL-A59型短路隔离器使用说明书一、总述GL-A59短路隔离器用于总线短路故障保护，适用于总线型A 系列火灾报警控制系统。
总线回路正常工作时短路隔离器不动作，当回路上短路隔离器输出端某处发生短路故障（短路电流＞400mA ）时，短路隔离器动作切断输出端连接的所有设备，从而保证总线其它部分工作正常。
待故障修复后，短路隔离器可自行将输出端的所有设备重新纳入系统。
使用短路隔离器便于确定总线发生短路的位置，短路隔离器不需编码，不占用回路中的地址。
二、主要技术指标1.工作方式：无极性二线制2.静态电流：＜2.5mA3.动作电流：<15mA4.保护电流：两档可选择，＞400mA 或＞1200mA5.工作指示：红色（正常监视状态不亮，动作时常亮）6.使用环境：温度：-10℃～50℃；相对湿度：≤95%（40℃±2℃无凝露）7.外型尺寸：86×86×41mm （带底座）8.重量：约125克（带底座）三、使用说明1.GL-A59外形示意图如图1所示:图1GL-A59短路隔离器主体跳线说明：跳线JP1跳接1，2脚，动作电流＞1200mA ；跳接2，3脚，动作电流＞400mA ，出厂默认跳接1,2脚。
2.短路隔离器底座端子示意图图2GL-A59短路隔离器底座（DZ-A59）2端子说明：端子标号功能说明端子标号功能说明IN1总线输入（无极性）OUT1总线输出（无极性）IN2总线输入（无极性）OUT2总线输出（无极性）注：输入输出线不能反接使用，反接可能导致隔离器损坏。
3.接线方法图3接线示意图4.建议短路隔离器输出端带智能探测器（或智能模块）的数量≤32。
四、安装与调试（⚠警告：模块严禁设置在配电（控制）柜（箱）内。
）1.确认短路隔离器类型与施工图纸上所注类型相匹配；2.按图2或图3所示，正确接线；3.按施工图纸，使用2枚M4螺钉，通过图2中所示的两个椭圆形螺丝孔，将短路隔离器底座固定好，再将短路隔离器主体插到短路隔离器底座上，并应确保两者接触良好；4.待全部短路隔离器安装完毕，且确认无误后，接通控制器电源。
苏州迅鹏信号隔离器英文说明书(最全)word资料
SUZHOUSURPONINSTRUMENTCO.,LTDCurrenttoCurrentDistributor FEATURE:Measure:DCVOLTAGE,DCCURRENTAccuracy:≤±0.1%ROIsolation:input,outputandpowerarecompletelyisolated;highcapabilityofanti-interference.Powersupply:DC24VorAC220V1.MODELSELECTION2.SIZEANDSHAPEADD:F673hengfengbuilding,NO.26-6NorthTongjingRoad.Suzhou,JiangsuprovincechinaFax：0086-512-68381803 Ph：0086-512-68381802SUZHOUSURPONINSTRUMENTCO.,LTDADD:F673hengfengbuilding,NO.26-6NorthTongjingRoad.Suzhou,JiangsuprovincechinaFax：0086-512-68381803 Ph：0086-512-68381802SUZHOUSURPONINSTRUMENTCO.,LTDADD:F673hengfengbuilding,NO.26-6NorthTongjingRoad.Suzhou,JiangsuprovincechinaFax：0086-512-68381803 Ph：0086-512-68381802模拟量信号隔离模块、模拟量信号隔离器产品型号：DATA-8301产品概述：模拟量信号隔离模块主要用于对各类4~20mA信号采集设备或控制设备进行隔离保护。
该隔离模块实现了电源、输入信号、输出信号的全面隔离，唐山平升模拟量信号隔离模块可有效消除串流、电磁、谐波等干扰信号、显著提高信号质量。
单路电压传感器
使用说明一、 概述本产品为一种单相交流电压隔离传感器 ，采用的是电磁隔离原理，能够对单相的交流电压进 行采样，并隔离输出 0~5V 、0~20mA 或4~20mA 多种标准信号，其输入和输出之间实现电的隔离， 输出信号与输入信号间有完全的线性关系。
该产 品具有精度好，隔离耐压高，低温漂，体积小， 安装方便等优点，符合国际标准。
可广泛应用于 交流电压信号的实时检测 /监控，通讯，电力，铁 路，工业控制等领域。
二、 产品型号品逞标志一I 交流电流一 单相 谕岀类型£1-跟赊电压V 百;3-直SS 电压 4—）； 5—4™ 2 OmA （工y 如6-1-5V （W ； 3-0-1 OV （Vd ）'三、主要技术指标测试条件：辅助电源：+12V ，室温：25 C*输入范围：0~ 1 ~ 1000V*精度等级：0.2级、0.5级（采用引用误差） *工作温度：0~50 C*温漂特性：0.2 级 200ppm/ C 0.5 级 500ppm/C *隔离耐压：2500 V DC*负载能力：电压输出》 2 k Q 电流输出w 300 Q *响应时间：w 400 mS*静态功耗：电压输出w 200mW电流输出（4~20mA ） w 250mW*输入过载能力：2倍额定电压输入值，一秒10次PX 系列电量隔离传感器/变送器图3所示。
图3 DIN 导轨或螺钉安装平面图七、注意事项1.电源电压必须符合标称值，特别是+12V 和+15V 产品不能接入+24V 电源，否则会烧坏产品；2. 当用万用表表笔测量电压或电流时，应把接线端子螺钉旋到底，否则有可能测不到电压 或电流输出值；3. 使用时必须按所选产品型号对应的接线参考 图，正确连接信号输入、输出和辅助电源接 线，检查无误后再接通辅助电源；4. 使用环境应无结露、无导电尘埃和破坏绝缘、 金属的腐蚀性气体存在；5.产品出厂时已调校好零点和精度，请勿随意 调校，确需现场调校时，请与我公司联系；6. 传感器为一体化结构，不可拆卸，同时应避 免碰撞和跌落。
配电器(隔离器)系列说明书
+-
78
输入2 4~20mADC
+-
10 11
+36
24VDC 电源
+12
1~5V/4~20mADC 输出1
+45 1~5V/4~20mADC
输出2
■外形尺寸和安装尺寸
智能信号处理变送器
SWP-8080
输入1
输入2
输入3
4~20mADC
+ mV-
4~20mADC /1~5VDC
当仪表工作不正常时，要对仪表进行维修。由于本仪表为功能模块结构，维修 时，只需对模块各引出端进行检查；供电电压端是否为24V DC（21.4～26.6）V
DC，受信信号端是否为（0.2～1.0）V DC，输出端是否为（1～5）V DC或(4～ 20)mA DC。若不正常，查明原因后给予处理。模块本身在正确使用中不易损坏，一 旦损坏后，只能另换新的模块。
3 +
-6
12 +-
45
+-
24VDC 1~5V/4~20mADC
隔离器（单通道） SWP8047 输入
4~20mADC
7+ 8 -
隔离器（双通道）
SWP-8038 4~20mADC 4~20mADC
输入1 7 +8 - 输入2 10 +11-
隔离器（一进二出）
SWP-8034 输入1
4~20mADC +-
1. 向两线制变送器提供电源；
2. 将两线制变送器的（4～20mADC信号转换为（1～5）VDC的信号；
3. 具有隔离功能，即实现了输入/输出/电源三者之间的相互隔离，有效地防止了各种干扰进入
Datavideo DAC-80 音频隔离变换器说明书
Instruction Manualw w w.d a t a v i d e o.c o mAUDIO ISOLATIONTRANSFORMER DAC-80Table of ContentsFCC COMPLIANCE STATEMENT (3)WARNINGS AND PRECAUTIONS (3)WARRANTY (5)S TANDARD W ARRANTY (5)T HREE Y EAR W ARRANTY (5)DISPOSAL (6)1.INTRODUCTION (7)F EATURES (7)S YSTEM D IAGRAM (8)2.CONNECTIONS & CONTROLS (9)F RONT P ANEL (9)R EAR P ANEL (10)3.ELECTRONIC CIRCUIT DIAGRAM (11)4.SPECIFICATIONS (11)SERVICE & SUPPORT (12)Disclaimer of Product and ServicesThe information offered in this instruction manual is intended as a guide only. At all times, Datavideo Technologies will try to give correct, complete and suitable information. However, Datavideo Technologies cannot exclude that some information in this manual, from time to time, may not be correct or may be incomplete. This manual may contain typing errors, omissions or incorrect information. Datavideo Technologies always recommend that you double check the information in this document for accuracy before making any purchase decision or using the product. Datavideo Technologies is not responsible for any omissions or errors, or for any subsequent loss or damage caused by using the information contained within this manual. Further advice on the content of this manual or on the product can be obtained by contacting your local Datavideo Office or dealer.FCC Compliance StatementThis device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:(1)This device may not cause harmful interference, and(2)This device must accept any interference received, including interferencethat may cause undesired operation.Warnings and Precautions1.Read all of these warnings and save them for later reference.2.Follow all warnings and instructions marked on this unit.3.Unplug this unit from the wall outlet before cleaning. Do not use liquid oraerosol cleaners. Use a damp cloth for cleaning.4.Do not use this unit in or near water.5.Do not place this unit on an unstable cart, stand, or table. The unit mayfall, causing serious damage.6.Slots and openings on the cabinet top, back, and bottom are provided forventilation. To ensure safe and reliable operation of this unit, and to protect it from overheating, do not block or cover these openings. Do not place this unit on a bed, sofa, rug, or similar surface, as the ventilation openings on the bottom of the cabinet will be blocked. This unit should never be placed near or over a heat register or radiator. This unit should not be placed in a built-in installation unless proper ventilation is provided.7.This product should only be operated from the type of power sourceindicated on the marking label of the AC adapter. If you are not sure of the type of power available, consult your Datavideo dealer or your local power company.8.Do not allow anything to rest on the power cord. Do not locate this unitwhere the power cord will be walked on, rolled over, or otherwise stressed.9.If an extension cord must be used with this unit, make sure that the totalof the ampere ratings on the products plugged into the extension cord do not exceed the extension cord rating.10.Make sure that the total amperes of all the units that are plugged into asingle wall outlet do not exceed 15 amperes.11.Never push objects of any kind into this unit through the cabinetventilation slots, as they may touch dangerous voltage points or short out parts that could result in risk of fire or electric shock. Never spill liquid of any kind onto or into this unit.12.Except as specifically explained elsewhere in this manual, do not attemptto service this product yourself. Opening or removing covers that are marked “Do Not Remove” may expose you to dangerous voltage points or other risks, and will void your warranty. Refer all service issues to qualified service personnel.13.Unplug this product from the wall outlet and refer to qualified servicepersonnel under the following conditions:a.When the power cord is damaged or frayed;b.When liquid has spilled into the unit;c.When the product has been exposed to rain or water;d.When the product does not operate normally under normal operatingconditions. Adjust only those controls that are covered by the operatinginstructions in this manual; improper adjustment of other controls mayresult in damage to the unit and may often require extensive work by aqualified technician to restore the unit to normal operation;e.When the product has been dropped or the cabinet has been damaged;f.When the product exhibits a distinct change in performance, indicatinga need for service.WarrantyStandard Warranty•Datavideo equipment are guaranteed against any manufacturing defects for one year from the date of purchase.•The original purchase invoice or other documentary evidence should be supplied at the time of any request for repair under warranty.•The product warranty period beings on the purchase date. If the purchase date is unknown, the product warranty period begins on the thirtieth day after shipment from a Datavideo office.•Damage caused by accident, misuse, unauthorized repairs, sand, grit or water is not covered under warranty.•Viruses and malware infections on the computer systems are not covered under warranty.•Any errors that are caused by unauthorized third-party software installations, which are not required by our computer systems, are not covered under warranty.•All mail or transportation costs including insurance are at the expense of the owner.•All other claims of any nature are not covered.•Cables and batteries are not covered under warranty.•Warranty only valid in the country or region of purchase.•Your statutory rights are not affected.Three Year Warranty•All Datavideo products purchased after July 1st, 2017 arequalified for a free two years extension to the standardwarranty, providing the product is registered withDatavideo within 30 days of purchase.•Certain parts with limited lifetime expectancy such as LCD panels, DVD drives, Hard Drive, Solid State Drive, SD Card, USB Thumb Drive, Lighting, Camera module, PCIe Card are covered for 1 year.•The three-year warranty must be registered on Datavideo's official website or with your local Datavideo office or one of its authorized distributors within 30 days of purchase.DisposalFor EU Customers only - WEEE MarkingThis symbol on the product indicates that it will not betreated as household waste. It must be handed over tothe applicable take back scheme for the recycling ofWaste Electrical and Electronic Equipment. For moredetailed information about the recycling of this product,please contact your local Datavideo office.CE Marking is the symbol as shown on the left of this page.The letters "CE" are the abbreviation of French phrase"Conformité Européene" which literally means "EuropeanConformity". The term initially used was "EC Mark" and itwas officially replaced by "CE Marking" in the Directive 93/68/EEC in 1993. "CE Marking" is now used in all EU official documents.1. IntroductionDAC-80 is designed to remove hum and buzz created by ground loops. Normal voltage differences in the system grounding points between different pieces of equipment cause small AC power currents to flow in the shield of audio cables. Capacitance between a power transformer’s primary and secondary windings introduce signals to the circuit ground which will also create small current flows in the cable shield. Either of these problems will create hum in audio signals. DAC-80 breaks the inter-equipment ground path and greatly increases the rejection in the input circuits while remaining transparent to the audio signal. Features•Easy to use•Eliminate audio noise caused by ground loops•Designed for low signal loss and low distortion•Passive device (No power required)System Diagram2. Connections & Controls Front PanelCH1 / CH2 Audio InputXLR Balanced Audio input (Channel 1 / 2)LIFT Toggle SwitchThese switches turn to UP position, audio ground not connected. Breaks ground loops, provides audio isolation.These switches turn to DOWN position, for chassis shield and audio ground connected. Corrects balance on audio lines.(Left switch =CH2, Right switch = CH1)Rear PanelCH1 /CH2 Audio OutputXLR Balanced Audio output (Channel 1/ 2).113.Electronic Circuit Diagram4. SpecificationsImpedance600Ω+/- 10%(Input & output)Bandwidth Frequency 20Hz ~20KHz ±0.5dB THD: 1 KHz < 0.015% @ +4dBu; 20Hz: 0.05% @+4dBu Insertion loss <0.5dB Turns Ratio 1:1Input 2 XLR Audio Input Channels Output 2 XLR Audio Output ChannelsDimensions 85mm x 45.2mm x 111.5mm (W x H x D)All the trademarks are the properties of their respective owners. Datavideo Technologies Co., Ltd. All rights reserved 2018Service & SupportJul-07.2017Please visit our website for latest manual /product/DAC-80It is our goal to make your products ownership a satisfying experience. Our supporting staff is available to assist you in setting up and operating your system. Please refer to our web site for answers tocommon questions, support requests or contact your local office below.DATAVIDEO WORLDWIDE OFFICES Tel: +1-562-696 2324Fax:+1-562-698 6930E-mail:*******************E-mail:******************Datavideo Technologies China Co601,Building 10,No.1228,Rd.Jiangchang,Jingan District,Shanghai Tel: +86 21-5603 6599Fax:+86 21-5603 6770E-mail:********************Datavideo Visual Technology(S) Pte Ltd No. 178 Paya Lebar Road #06-07Singapore 409030Tel: +65-6749 6866Fax:+65-6749 3266E-mail:****************************Datavideo Technologies Co. Ltd 10F. No. 176, Jian 1st Rd.,Chung Ho District, New Taipei City 235, Taiwan Tel: +886-2-8227-2888Fax:+886-2-8227-2777E-mail:*********************.tw Datavideo Corporation 7048 Elmer Avenue.Whittier, CA 90602, U.S.A.Datavideo UK LimitedBrookfield House, Brookfield Industrial Estate, Peakdale Road, Glossop, Derbyshire, SK13 6LQ Tel: +44-1457 851 000Fax:+44-1457 850 964E-mail:******************.uk Datavideo Technologies China Co 902, No. 1 business building, Xiangtai Square, No. 129,Yingxiongshan Road, Shizhong District, Jinan City, Shandong Province, China Tel: +86 531-8607 8813E-mail:********************Datavideo France s.a.r.l.Cité Descartes 1, rue Albert Einstein Champs sur Marne 774477 –Marne la Vallée cedex 2Tel: +33-1-60370246Fax:+33-1-60376732E-mail:*****************Datavideo Hong Kong Ltd G/F.,26 Cross Lane Wanchai, Hong KongTel: +852-2833-1981Fax:+852-2833-9916E-mail:******************.hk Datavideo India NoidaFax:+91-0120-2427338E-mail:******************Tel: +91-0120-2427337A-132, Sec-63,Noida-201307, IndiaDatavideo India KochiTel: +91 4844-025336Fax:+91 4844-0476962nd Floor- North Wing, Govardhan Building,Opp. NCC Group Headquaters, Chittoor Road, Cochin- 682035Datavideo Technologies Europe BV Floridadreef 1063565 AM Utrecht,The NetherlandsTel: +31-30-261-96-56Fax:+31-30-261-96-57E-mail:*****************Datavideo Technologies China Co No. 812, Building B, Wankai Center,No.316, Wan Feng Road, Fengtai District, Beijing, ChinaTel: +86 10-8586 9034Fax:+86 10-8586 9074E-mail:********************Datavideo Technologies China CoA1-2318-19 Room,No.8, Aojiang Road,Taijiang District,Fuzhou,Fujian,China Tel**************，*************Fax**************E-mail:********************Datavideo Technologies China Co B-823,Meinian square,No.1388,Middle of Tianfu Avenue,Gaoxin District,Chengdu,SichuanTel: +86 28-8613 7786Fax:+86 28-8513 6486E-mail:********************Datavideo Technologies (S) PTE Ltd No. 178 Paya Lebar Road #06-03Singapore 409030Tel: +65-6749 6866Fax:+65-6749 3266E-mail:******************。
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PX-GL001A 单声道音频电流声消除器产品说明书
产品概述
通常情况下，音频或立体声信号传输电缆屏蔽层的电压为0V，当多媒体及车载系统地回路/地环现象存在时，电平将在0V左右上下波动，更严重的将导致音频立体声信号严重失真及低频交流“嗡”音和车载火花高频“嗞”音等干扰现象。
在音频信号传输距离超过100米的情况下，极易产生较高的接地环路电压，如果地环电压过高的情况下，甚至会导致信号源或接收设备被烧毁，严重时有可能危及到车载电瓶的使用寿命。
产品特点：
１、低底噪、无50Hz交流“嗡”声、无高频“嗞啦”干扰、高层次CD音质。
２、单路高保真（RCA接口的音频隔离器）RCA接口输入、输出。
３、优异的大于60dB-CMRR，较高的抗共模干扰抑制能力
４、设备采用航空航天材料，具用超高灵敏度低照度还原特性，较同类低端产品高3-5倍的灵敏度
５、即插即用，无需任何操作系统限制，无需输件安装调试
６、无需TCP/IP设置，无需防火墙、无安全漏洞隐患
７、隔离滤波音频传输最远传输视频信号450－600米
８、支持即插即用，支持热插拨、无需电源，无需软件设置和维护
９、体型小巧，人性化设计，可直接置于车载DVD、MP3、MP4播放器或摄像机后或防护罩内
10、内置瞬态、浪涌抑制、抗静电保护电路
11、PVC塑胶防水、体积小、重量轻
12、24X7X365 全天侯工作，性能稳定可靠
13、尺寸：长*宽*高58mm*31mm*21mm
产品性能指标：
输入输出隔离绝缘耐压：500Vp-p以上
多媒体立体声隔离静噪器特性：设备插损<0.5dB回损：大于18dB
接口：RCA母头
阻抗：300欧姆Min－600欧姆Max(输入－输出、输入电平：0.5Vp-p(Min)-1Vp-p - 3Vp-p (Max)、模拟地环路隔离及静噪处理
音频响应带宽：20Hz-15KHz
共模抑制：大于68dB＠1KHz
立体声通道隔离度：62dB
工作温度：-10℃-85℃(车规级可选)
储藏温度：-30℃-70℃
适用音频格式：模拟立体声
产品连接示意图：
注：此产品不分输入输出，只需串接在音响线路中即可.。