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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

sch1_2b24beaa142e94358ddb8e73fbd5296823810e3f.png

Schematic of Digilent Pmod RS485

pcb1_4b869e7b4a4a675a000eabcf957d34c2618cc0bb.png

PCB layout of Digilent Pmod RS485

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3D view of Digilent Pmod RS485

BOM list of the board (Key Components):

RS Part Number

Manufacturer Part Number

Manufacturer

Description

(709-7913)

ADM2582EBRWZ

Analog Devices

Line Transceiver

(135-4983)

282836-2

TE Connectivity

2 Pin PCB Terminal Block

(251-8086)

W81102T3825RC

RS Pro

2 Pin Header

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