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Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE FEDERAL COMMUNICATIONS COMMISSION CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato. 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.
HS RS-232↔CURRENT LOOP CONVERTER ACTIVE 2. Introduction 2.1 Overview The HS RS-232↔Current Loop Converter Active lets an asynchronous RS-232 device communicate with a passive 20-mA current-loop device. Equipped with an external power supply, the Converter supports data rates up to 115.2 Kbps. The HS RS-232↔Current Loop Converter Active transmitter is active and must be connected to a passive receiver, and the HS RS-232↔Current Loop Converter Active receiver can accommodate either a passive or active...
HS RS-232↔CURRENT LOOP CONVERTER ACTIVE 3. Configuration The HS RS-232↔Current Loop Converter Active is easy to use. The only configuration necessary for operation is the proper setting of two switches: the external DCE/DTE switch and the internal active/passive switch. 3.1 Setting the DCE/DTE Switch The figure below shows the location of the DCE/DTE switch on the PC board, as well as the location of the terminal block.
HS RS-232↔CURRENT LOOP CONVERTER ACTIVE For your convenience, the Converter has an externally accessible DCE/DTE switch (see the diagram below). If the RS-232 device connected to the Converter is a modem or multiplexor (or is wired like DCE), set the switch to “DTE.”...
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE CAUTION Never connect two active devices together. Your configuration must be “active to passive” or “passive to active.” Active Active/Passive Switch Passive...
LOCKS The terminal block/strain-relief version of the HS RS-232↔Current Loop Converter Active (CL090A-F, CL090A-M, CL090AE-F, CL090AE-M) allows you to hook up the line-side interface using bare wires. The following instructions will tell you how to open the case, connect the bare wires, and fasten the...
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE 1. Open the unit by gently inserting a screwdriver between the DB25 connector and the lip of the plastic case (see the diagram below). You don’t have to worry about breaking the plastic, but be careful not to bend the D-sub connector.
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE 2. Strip the outer insulation from the twisted pairs about one inch from the end. 3. Strip back the insulation on each of the two twisted-pair wires about one quarter of an inch. 4. Connect one pair of wires in the telephone cable to XMT (Transmit) on the terminal block, being careful to observe the polarity.
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE 7. When you finish connecting the wires to the terminal block, the assembly should resemble the diagram below. 8. Place the two halves of the strain-relief assembly on either side of the telephone wire and press together very lightly. Slide the assembly so that it is about two inches (5.1 cm) from the terminal posts and press together firmly.
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HS RS-232↔CURRENT LOOP CONVERTER ACTIVE 10. Bend the top half of the case as necessary to place it over the strain-relief assembly. Do not snap the case together yet. 11. Insert one captive screw through a saddle washer, then insert the captive screw with the washer on it through the hole in the DB25 end of the case.
HS RS-232↔CURRENT LOOP CONVERTER ACTIVE Appendix B. Block Diagram 9VDC Data Detection Level Constant DCE/DTE Conversion Current Switch Amplifier Amplifier Active/ Data Passive Detection Switch Level Current Conversion Optocoupler Limiter Amplifier 9VDC Current Constant Power Source Current Reference Amplifier 9VDC Regulated Power Supply...
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