Embedded World 2013: Evaluation board cuts RS485 interface design time
1 min read
Reflecting the time consuming nature of developing RS485 interfaces, Analog Devices and Bourns have collaborated to create the first certified evaluation board that protects against emc events.
Called the EVAL-CN0313-SDPZ, the board features Analog's ADM3485E – a 3.3V RS485 transceiver – and various circuit protection devices from Bourns. According to both companies, the board meets the electrostatic discharge, electronically fast transient and power surge specifications required by IEC61000-4-2/4/5.
The board comes with circuit notes, test data and results to help engineers reduce design risk in applications such as motor controls, grid tied inverters and programmable logic controllers.
"We have developed circuits for three industrial grades of protection within this interface design tool," said Michael Müller-Aulmann, an Analog Devices applications engineer.
The design is said to protect the RS485 transceiver from surges of 1, 4 and 6kV, 2kV fast transients, 8kV contact and 15kV air discharge esd. A Hirose EI3 connector allows the board to be used with Analog's ezLINX iCoupler Isolated Interface Development Environment to evaluate the digitally isolated RS485 physical communication layer.
