RS-232 RS-422 DB-25

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Document 422COR4500
RS-232 RS-422 Converter
Model 422COR
This RS-232 RS-422 converter converts unbalanced RS-232 signals balanced RS-422 signals. RS-422 Standard uses balanced voltage digital interface allow communications bits second cable lengths 4000 feet. receivers connected driver multi-drop systems. RS-232 port uses female DB25 type connector with pins 2(TD input) 3(RD output) supported. Protective Ground (pin Signal Ground (pin also connected. RS-422 port uses male DB-25 type connector with Send Data outputs pins Receive Data inputs pins Protective Ground (pin Signal Ground (pin connected through RS-232 connector. Interconnection converter with another RS-422 device: polarity RS-422 lines must correct. With data being sent RS-232 line should negative RS-422 terminal should negative with respect terminal. your equipment uses naming scheme, most cases line will connected "-", line will connected "+". wire recommended RS-422 Standard number copper conductor, twisted-pair telephone cable with shunt capacitance foot. long runs and/or high data rates recommended that wires terminated with resistor receive end. twisted pair usually used impedance about ohms, therefore resistor normally used termination. RS-422 side converter requires more power transmission line increased termination resistor value reduced, therefore necessary terminationresistor that larger than ohms. RS-422 driver ability drive RS-422 receivers connected parallel. system multiple receivers require some experimentation with location size termination resistors, line lengths, grounding, etc. RS-422 Standard recommends that Protective Ground (pin connected good "green wire" ground. This already connected your RS-232 equipment. Protective Ground Signal Ground should connected through each system connected each other using watt resistor only. shielded twisted pair used shield should connected Protective Ground.
DECLARATION CONFORMITY
Manufacturer's Name: Manufacturer's Address: Electronics Manufacturing Company P.O. 1040 Dayton Road Ottawa, 61350 422COR RS-422 Converter Light industrial equipment 50082-1 (IEC 801-2, 801-3, 801-4) 50081-1 55022, 1000-4-2) 61000 (-4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11) 50204 55024
Model Numbers: Description: Type: Standards:
Application Council Directive: 89/336/EEC
Michael Fahrion, Director Engineering
Electronics Revised November 2000
This product designed manufactured domestic imported parts
Document 422COR4500
Electronics Revised November 2000
This product designed manufactured domestic imported parts

RS-232 RS-422 DB-25

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