PC/104 RS-485 Serial Interface

Part: 3588   Model: SIO-104+8.485

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The 3588 PC/104 serial interface provides eight two-wire RS-485 serial ports. The board includes UARTs with 128-byte FIFOs for fast, error-free communication up to 921.6K bps. To simplify RS-485 communication, the board used with our software driver automatically handles the RS-485 driver enable, allowing the RS-485 ports to be viewed by the operating system as standard COM ports. Additionally, the board supports custom baud rates and 9-bit protocols.

Sealevel’s SeaCOM software makes installation and operation easy using Microsoft Windows and Linux operating systems.

Note: This item has a minimum order quantity (MOQ) of 25 units. Please contact your sales representative with any questions.


Additional information

Communications Chip


Electrical Interface


Extended Temperature

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Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Host Interface(s)


Max Data Distance

4000 feet

Max Data Rate

921.6K bps

Operating Temperature

0°C to 70°C (32°F to 158°F)

# of Ports


Storage Temperature

-50°C to 105°C (-58°F to 221°F)

UART Series

950 UART

  • Eight two-wire RS-485 serial ports
  • 16C954 buffered UARTs with 128-byte FIFOs
  • Data rates to 921.6K bps
  • Two 40-pin right-angle header connectors
  • Extended temperature range available (-40°C to 85°C)

Windows Software

Software: SeaCOM - Windows

Linux Software

Software: SeaCOM - Linux


Manual: 3588


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