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Current loop devices use current on or current off to transmit binary digits. B&B current loop 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.
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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 RS-232/422/485 current loop converter models are optically isolated
- Designed for 20 mA Digital Current Loop. 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.
DB9 RS232 TO CURRENT LOOP W/TB
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