Check at www.ednmag.com, for the ad at the bottom of page
13, February 16, 1998 issue. I'll quote in brief:

"PCI card delivers RS-232C/422/485 channels

[....]Sealevel Ultra-Comm+2 PCI card. The dual-serial-port
plug-and-play PCI card supports standard RS232 and works in
RS422/485 environments. RS422 supports 4000 ft max, and
485-mode supports up to 31 devices on a cable. Uses
standard Windows COM port drivers. Costs $279 or $299,
depending on choice of 16550 or 16750 UARTs.

Sealevel Systems
Liberty, SC
1-864-843-4343
www.sealevel.com"

Dunno anything about them, but it sounds like what you're
after.


Mark G. Forbes, R & D Engineer  |  Acres Gaming, Inc.    (541) 766-2515
KC7LZD                          |  815 NW 9th Street     (541) 753-7524 fax
forbesm@peak.org                |  Corvallis, OR 97330
http://www.peak.org/~forbesm
mforbes@hq.acresgaming.com

"There has been an alarming increase in the number of things I know nothing
about."
---Anomalous