
PC/104 ‑ Asynchronous Serial
PC/104 RS‑485 Serial Interface
3588
Item # 
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 drivers and 
utilities make installation and operation easy.
Unique Features
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 ‑ +85° C)
Technical Specications
Number of Ports  8
Communications Chip  16C954 
Max Data Rate  921.6K bps
Max Data Distance  4000 feet 
Operating Temperature  0 ‑ +70° C 
Storage Temperature  ‑50° ‑ +105° C
Humidity Range  10 ‑ 90% R.H.
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