Impulse SIO-104+16.485 (3562) - Manual (Page 3)

© Sealevel Systems, Inc. - 1 - SIO-104+16.485 User Manual
Introduction
The SIO-104+16.485, Item Number 3562, is a PC/104 serial interface module with
sixteen 2-wire RS-485 serial interface ports, supporting data rates up to 921.6K bps.
The board is designed using four 16C954 UARTs with 128-byte FIFOs. The 16C954
features a flexible clock prescalar (from 1 to 31.875), 9-bit protocol support, and
isochronous mode.
RS-485 is optimized for ‘Multi-Drop’ or ‘Party-line’ operations selecting data from
multiple peripherals (as many as 31 devices can be connected on an RS-485 bus).
Optional terminal block adapters are available to simplify field-wiring connections.
The SIO-104+16.485 is designed to be used with a variety of Operating Systems
including Windows 98/NT/ME/2000/XP, Linux and DOS. The SeaCOM API
(Application Programmer Interface) included on CD with the SIO-104+16.485
provides a variety of useful high-level function calls implemented as a Windows
dynamic link library (DLL) and as a Linux kernel module and library. In addition to
the API, SeaCOM includes sample code and utilities to simplify software
development.
Other Sealevel PC/104 Serial Products
ULTRA SIO-104 (P/N 3550) - 1 Port RS-422/485
SIO-104 (P/N 3551) - 1 Port RS-232
SIO.104+2 (P/N 3502) - 2 Port RS-232/422/485
C4-104.ULTRA (P/N 3540) - 4 Port RS-232/422/485
SIO4-104.232 (P/N 3542) - 4 Port RS-232
SIO-104.485 (P/N 3543) - 4 Port RS-422/485
SIO4-104.2+2 (P/N 3544) - 2 Port RS-232 & 2 Port 422/485
SIO-104+8.485 (P/N 3588) - 8 Port 2-wire RS-485