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Sealevel Systems Introduces Low Cost Four Port PC/104 Serial Family

Date: 02/27/2004

Targeting cost-sensitive applications, Sealevel Systems, Inc. has introduced the SIO4-104 family of value priced four port PC/104 serial I/O modules. Choose from RS-232 and RS-422/485 interfaces to best match your application requirements. Each model is designed to meet the core needs of PC/104 applications requiring high reliability, small size, and long term availability. Various UART options and extended temperature range models (-40?C to +85?C) are available.

SIO4-104 modules conform strictly to PC/104 specifications and support data rates up to 921.6K bps in RS-422/485 mode. Interface is accomplished via a 40-pin header connector. Terminal block adapters and other helpful accessories are available.

SIO4-104 boards ship with Sealevel Systems? SeaCOM suite of Windows? 95/98/ME/NT/2000/XP drivers. Sealevel also includes WinSSD, a full-featured application providing powerful testing and diagnostic capabilities. Use WinSSD for BERT (Bit Error Rate Testing), throughput monitoring, loopback tests, and transmit test pattern messages. In addition to Windows drivers and utilities, SeaCOM includes application notes and technical details to simplify installations in LINUX?, QNX?, and DOS.

All SIO4-104 modules are available immediately from stock. Prices begin at $179.00 in low volume quantities, and like all Sealevel I/O products, SIO4-104 modules are backed by a lifetime warranty.

For more information on Sealevel Systems, please contact Earle Foster at Sealevel, by phone at (864) 843-4343 x116, or by e-mail at


Sealevel Systems, founded in 1986, provides industrial computing solutions in addition to a variety of communications and I/O products including PCI Express and PCI Bus cards, Ethernet serial servers, and USB serial adapters. The product line includes multi-port RS-232, RS-422/485, RS-232/422/485 multi-interface high-speed sync/async, and digital/relay I/O. For more information visit or call 864-843-4343.


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