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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.
Features
- All models are optically isolated
- Designed for 20 mA. Inquire about other values
- Maximum baud rate: 19.2 kbps
Specifications:
- 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.
Ordering Information:
232CL9R - Current Loop to Serial RS-232/RS-422/RS-485 Converters, Terminal Block, DB9 Female
232CL4R - Current Loop to Serial RS-232/RS-422/RS-485 Converters, Terminal Block, DB25 Female
232PCLR - Current Loop to Serial RS-232/RS-422/RS-485 Converters, DB25 Male, DB25 Female
485CL - Current Loop to Serial RS-232/RS-422/RS-485 Converters, Terminal Block, DB25 Female
Current Loop to Serial RS-232/RS-422/RS-485 Converters
Model: Please see below
