Industrial RS-232 to RS-422/485 Converter 485DRCi PRODUCT FEATURES • Data rates up to 115.2 kbps • Three-way 2,000V optical isolation (input, output, power) • Wide (-40 to +80 °C) operating temperature • UL Class 1/Division 2 ® • Modbus ASCII/RTU, Allen-Bradley DH-485 compatible • 10–48 VDC input power range Model 485DRCi industrial-grade isolated serial converter changes RS-232 ORDERING INFORMATION signals to RS-422 for increased range, or to RS-485 for increased range plus MODEL RS-232 CONNECTOR RS-422/485 CONNECTOR ISOLATION NUMBER multi-drop capability. 485DRCi DB9 Female (DCE) Removable Terminal Block 2,000 V Designed for rugged industrial use, the 485DRCi is UL approved and certified for operation in Class 1/Division 2 environments and also offers 2,000V 3-way ACCESSORIES optical isolation on input, output, and power lines. In addition to optical isolation, MDR-20-24 - DIN rail mount power supply 24VDC, 1.0 A output power the unit has surge suppression on the RS-422/485 lines. This DIN rail mountable EK-CLIP-MPC - Replacement DIN Rail Clip converter optically isolates and converts unbalanced, full or half-duplex, RS- 232 signals to balanced RS-422/485 signals at baud rates up to 115.2 kbps. TBKT1 - Replacement Terminal Block, 2 position 5.08mm Configuration is made via a 12-position DIP switch on the bottom of the converter. TBKT2 - Replacement Terminal Block, 5 position 5.08mm ® 31D1-28100 - Null Modem Adapter (Allen-Bradley applications) Featuring Automatic Send Data Control circuitry, the converter does not require special software control of handshake signals in RS-485 mode. Removable terminal blocks for power and RS-422/485 signals make wiring easy. It is powered by a supply voltage of 10 to 48 VDC which is isolated from all data and Automatic Send Data Control Explained signal ground lines. The 485DRCi may be suitable for use in Modbus and Allen- ® Bradley DH-485 applications. As operating systems become more complex, it is increasingly difficult to control an RS-485 driver with standard software and the RTS line. This is especially true in Windows and multi-tasking operating systems. With B+B SmartWorx’ Automatic Send Data Control circuit, driver control is in the converter hardware, so you do not have to work with software at all. The circuit monitors data flow and enables the driver during transmission and automatically disables it when no data is being sent. There is no need to rework software or install new drivers. Most B+B SmartWorx RS-232 to RS-485 converters IN THE FIELD and RS-485 serial cards include Automatic Send Data Control. Resolving Electrical Substation Data Glitches Industry: Energy & Natural Resources Utilities Product: Optically Isolated Converter ® Allen-Bradley 1761-NET-AIC ® The 485DRCi can be used as a replacement for the Allen-Bradley Advanced Interface Converter (AIC+) in some applications. The 31D1-28100 null modem adapter accessory is required for these applications. Contact B+B SmartWorx Technical Support for assistance regarding your specific installation needs. A White Paper is also available at the B+B SmartWorx online technical library. Some logos, names and words are trademarks of their respective owners. All product specifications are subject to change without notice. 485DRCi_0117ds www.advantech-bb.com / Enabling an Intelligent Planet Industrial RS-232 to RS-422/485 Converter 485DRCi SPECIFICATIONS SERIAL TECHNOLOGY ENVIRONMENTAL Data Rate 1.2 to 115.2 kbps Operating Temperature -40 to +80 °C (-40 to +176 °F) RS-232 Storage Temperature -40 to +85 °C (-40 to +185 °F) Connector DB9 female (DCE) Operating Humidity 0 to 95% non-condensing Signals TD, RD, GND MTBF 254617 hours RS-422/485 MTBF Calculation Method Parts Count Reliability Prediction Connector Removable terminal block, 28 to 14 AWG CLASS 1/DIVISION 2 WIRING RS-485, 2-wire Data A(-), Data B(+), GND Type Solid copper only RS-422/485, 4-wire TDA(-), TDB(+), RDA (-), RDB(+), GND Size 28 to 14 AWG ISOLATION Temperature 105 °C (221 °F) minimum Rating 2,000 V Terminal Torque 0.5 Nm (Newton-meters) Lines Protected 3-way (input, output, power lines) APPROVALS / CERTIFICATIONS - 485DRCI Method Optical cUL 508, File Number: E222870 (C1 D2 E245458) SURGE SUPPRESSION FCC Part 15, EN 55022: 2010 + AC Class B Emissions Lines Protected Data lines CE Rating 600W peak power dissipation EN 61000-6-1: Generic Standards for Residential, Commercial and Light-Industrial Environments Clamping/Response Time < 1 pico-second EN 61000-4-2: Electro-Static Discharge (ESD) INDUSTRIAL BUS EN 61000-4-3: +A2 Radiated Field Immunity Modbus ASCII/RTU EN 61000-4-4: Electrical Fast Transients-Burst Immunity ® DH-485 Allen-Bradley Data Highway 485 (DH-485) EN 61000-4-6: Conducted Immunity POWER Connector Removable terminal block, 28 to 14 AWG Voltage 10-48 VDC Consumption 960 mW Source External MECHANICAL LED Indicators Transmit, Receive, and Power Dimensions 11.4 x 3.3 x 12.4 cm (4.5 x 1.3 x 4.9 in) Enclosure 35mm DIN mount, plastic, IP30 3.3 cm MECHANICAL DIAGRAM Weight 204.12 g (0.45 lb) 1.3 in 12.4 cm 4.9 in 11.4 cm 4.5 in orders@advantech-bb.com Corporate Headquarters: 707 Dayton Road, PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 support@advantech-bb.com European Office: Westlink Commercial Park, Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445