

Contact us for pricing
Click "Request a Quote" for corporate offers and volume-based custom pricing.
The product is used and works flawlessly. The product images show the actual item. We offer sales, purchasing, rental, and technical services for test and measurement equipment.
B&B Electronics 485LDRC
Signal Conversion: Converts RS-232 signals in a bi-directional manner to the RS-422 (4-wire) or RS-485 (2/4-wire) standards.
Data Transfer Rate: Bandwidth ranging from 1.2 kbps to 115.2 kbps (speed setting can be manually selected using the internal DIP switches on the device).
Optical Isolation: High optical protection at 2000 VAC (2 kV) between data lines and ground loops.
Current and Voltage Protection: 500 W peak power consumption (TVS) surge suppression protection with a theoretically short clamping time of less than 1 picosecond on the signal lines.
Automatic Data Control: The built-in "Automatic Send Data Control" circuit eliminates the need for an external software driver for handshake signals.
Range Extension: In standard conditions, the serial data transmission distance is extended to 1.2 kilometres (4,000 feet).
Protocol Compatibility: Full compatibility with Modbus (ASCII/RTU) protocols, which are widely used in industrial automation systems.
Connection Type: Screw terminal blocks (terminal blocks) that provide easy wiring on both the RS-232 and RS-422/485 power connection sides. (Also supports cable thicknesses ranging from 12 to 24 AWG.)
Input Voltage: External supply voltage ranging from 10 to 30 VDC or 9 to 30 VAC (Required current: ~100 mA.)
Power Consumption: Extremely low power consumption, approximately 0.5 watts.
Status Indicators: 3 red LEDs that provide real-time monitoring of power status, data transmission (TD) and reception (RD) activity.
Operating Temperature: From -40 °C to +80 °C, the most severe industrial field and panel interior ambient temperatures.
Operating Humidity: From 0% to 95% non-condensing relative humidity.
Mounting Design: Compact body design that fits easily into control panels and narrow enclosures, and is compatible with standard 35 mm DIN rails.
Physical Dimensions: 10.67 x 7.87 x 2.54 cm (4.2 x 3.1 x 1.0 inch).
Certifications and Standards: CE, FCC, EN 55022, EN 61000 standard test compliance.

SKU: Phoenix-28-58-99-1