LDM35 Series

LDM35 Series

分  类:其它

品  牌:欧米茄

厂  商:Omega工业测量(中国)

型  号:LDM35 Series

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发布时间:2019-12-19 18:15 浏览人数:

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包装
  • Signal-Powered: NoPower Source Required
  • Optical Isolation: BreaksGround Loops
  • Heavy Duty SurgeProtectors: PreventsLightning Damage
  • LED DiagnosticIndicators: SimplifiesInstallation and SystemTroubleshooting
  • Operation to Two Miles(3.3 KM) at 9600 Baud,One-Half Mile (0.8 KM) at19,200, Seven Miles (11.7 KM) at 1200 Baud
  • Four-Wire Full Duplex,Two-Wire Simplex
  • Selection of Connectors
  • Wide OperatingTemperature Range,0 to +70°C
  • Null Modem Switch

  • The LDM35 Series of products isdesigned to allow video displayterminals (VDTs) and other RS-232devices to be connected overdistances sufficient to cover anyindustrial or institutional complex ofbuildings. These modems feature arugged enclosure small enough tomount on the back panel of VDTunits, saving valuable desk andfloor space.The LDM35 Series does not requirea power supply for operation. Theuse of low power circuits and asensitive optical receiver allows thedevices to derive all necessary power from the RS-232 data andcontrol signal. They are designedfor full-duplex, asynchronousoperation over two, DC-continuity,non-loaded, twisted-wire pairs.Two-wire simplex operation may beaccomplished over two wires. Themodem circuits and, consequently,the host device are protected fromelectrical transients due to lightningstrikes or operation of heavyindustrial equipment.Each device features a convenientData-Communication Equipment(DCE) to Data-Terminal Equipment(DTE) switch which reverses pins2 and 3 of the RS-232 connector.For installation and troubleshooting,each unit has diagnosticLight-Emitting Diodes (LEDs) on thetransmit and receive lines.The RS-232 connector may beordered as a male or female 25-pinconnector. Field connection is madethrough a modern, solderless,screw-termination assembly.Alternatively, a convenient four-wiremodular phone jack is available. Model LDM35 is powered by theRS-232 data and control signalsfrom its host computer or terminaldevice. It receives power from DataTerminal Ready, pin 20 or RequestTo Send, pin 4, and Transmitted Data, pin 2. Transmitted data maybe on pin 3 when the DCE/CTEswitch is in the DTE position. Forproper operation, minimum requiredsignal voltage level is ±6 V at3.0 mA to 10.0 mA.
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公司名称:Omega工业测量(中国)
联系人: 王先生
联系电话:02161973664
手机号:
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电子信箱:kevin.wang@cn.omega.com
公司网站:http://cn.omega.com
公司地址:上海市宜山路1698号102单元
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