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24 Nov 2017, 13:39

Reference Design of Digilent Pmod RS485

This is a reference design of Digilent Pmod RS485 RS Part Number: (134-6474). The Digilent Pmod RS485 was converted into DesignSpark PCB format. Download link to the project files and the article of Digilent Pmod RS485 can be found at the end of this article.

The Digilent Pmod RS485 (Revision B) provides signal and power isolation for high-speed communication lines utilizing the RS-485 communication protocol.

  • High-speed RS-485 communication module
  • Isolated RS-485/RS-422 interfaces for use in noisy environments
  • 16Mbps maximum data rate
  • Connect up to 256 nodes on one bus
  • Differential half or full-duplex communication
  • Thermal shutdown and ±15kV ESD protection

Schematic of Digilent Pmod RS485


PCB layout of Digilent Pmod RS485


3D view of Digilent Pmod RS485


BOM list of the board (Key Components):

RS Part Number

Manufacturer Part Number





Analog Devices

Line Transceiver



TE Connectivity

2 Pin PCB Terminal Block



RS Pro

2 Pin Header


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I am an Electronic Engineering student studying in Hong Kong University of Science and Technology. I am interested in design PCB board.

24 Nov 2017, 13:39