- B&B Current Loop Converters -

B&B Current Loop Converters

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Current Loop to Serial RS-232/422/485 Converters

description

Current loop devices use current on or current off to transmit binary digits. B&B converters interface RS-232 and RS-422/485 systems to the most common current loop ports, 20 mA ports with open circuit voltages up to 30 V. Many models can be modified for higher loop currents and voltages. Call B&B Electronics’ Technical Support Department for details.

High speed optical isolators couple and isolate transmit and receive data. All B&B current loop converters have a transmit (T+ and T-) and a receive (R+ and R-) loop. Each loop may be operated as an active or passive loop. When the converter needs to provide the loop current, a 12 VDC power supply is required for the current loop side. Maximum baud rate recommended for current loop converters is 19.2 kbps.

All models are optically isolated Designed for 20 mA. Inquire about other values Maximum baud rate: 19.2 kbps Models 232CL4R is a port powered RS-232 to current loop converter. No external power required for passive loop installations. A power supply is required to generate an active loop.

Model 232PCLR is an RS-232 to current loop converter that requires a power supply for the RS-232 side of the converter.

Model 232CLDR is a DIN Rail mountable, wide temp version for industrial applications.

further informations

Ordering Information

Model Number	RS-232/422 Connector	Current Loop Converter	Power Source for RS-232/485
232CL9R	DB9 Female	Terminal Block	Port powered or PS2EU or PS2UK
232CL4R	DB25 Female	Terminal Block	Port powered or PS2EU or PS2UK
232PCLR	DB25 Female	DB25 Male	PS1EU or PS1UK
485CL	Terminal Block	DB25 Female	PS2EU or PS2UK

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