B&B Electronics 232CL9R Manual

9-pin rs-232 to current loop converter

9-Pin RS-232 to

Current Loop Converter

Model 232CL9R

Documentation Number 232CL9R-0812

This product Designed and Manufactured

of domestic and imported parts by

International Headquarters

B&B Electronics Mfg. Co. Inc.

707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350 USA

Phone (815) 433-5100 -- General Fax (815) 433-5105

Home Page: www.bb-elec.com

Sales e-mail:

orders@bb-elec.com

-- Fax (815) 433-5109

Technical Support e-mail:

support@bb.elec.com

-- Fax (815) 433-5104

232CL9R0812

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104

Table of Contents

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Page 1 9-Pin RS-232 to Current Loop Converter Model 232CL9R Documentation Number 232CL9R-0812 This product Designed and Manufactured of domestic and imported parts by International Headquarters B&B Electronics Mfg. Co. Inc. 707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350 USA Phone (815) 433-5100 -- General Fax (815) 433-5105 Home Page: www.bb-elec.com...
Page 2 The Model 232CL9R is a passive 9 pin RS-232 to current loop converter. This converter requires a 12VDC-power supply at 100mA. Additional resistors are supply for an active source. To connect the converter to an existing current loop port, you must first determine if the port is active or passive.
Page 3 Figure 1. 232CL9R0812 B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104...
Page 4 Connection to a passive current loop port requires a 12 VDC power supply. Use the 470 ohm resistors inside of our converter to create a 20 ma current source, as shown in figure 3. 232CL9R0812 B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104...
Page 5 Interconnection of two B&B current loop converters also requires the use of a 12 VDC power supply since they are both passive ports. See figure 4. 232CL9R0812 B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104...