PCIe-COM-8SM / -4SM User Manual
5
Chapter 1: Introduction
The PCI Express Multiport Serial cards were designed for RS232, RS422 and RS485
asynchronous communications for use in a variety of applications. These boards were
designed to offer compatibility with the PCI Express bus and to be used by system integrators
and manufacturers in the design of industrial and commercial communication systems. The
card is available in 8-port and 4-port versions and is compatible with all popular operating
systems. Each COM port is capable of supporting data rates up to 3Mbps (460.8kbps in
RS232 mode is standard) and implements full RS-232 modem control signals to ensure
compatibility with a wide range of serial peripherals. Existing serial peripherals can connect
directly to the industry standard DB9M connectors which are provided via an available cable.
The board features a x1 lane PCI Express connector which can be used in any length PCI
Express slot.
Features
Eight- or four-port PCI Express serial communication cards
Serial protocol (RS-232/422/485) SOFTWARE CONFIGURED per port, stored in
EEPROM for auto-configure at next boot
Low profile PCIe MD2 form factor can be used in standard
OR
Low Profile computers
High performance 16C950 class UARTs with 128-byte FIFO for each TX and RX
Very high speed card supports communication rates up to 3Mbps (standard model RS-
232 is 460.8kbps)
ESD prot/-15kV on all signal pins
Full modem control signals in RS-232 mode
Software compatible with all operating systems
Jumper selectable termination for RS-485 applications
3
‟ breakout cable available terminating with industry-standard DB9M connectors
Applications
POS (Point-of-sale) Systems
Gaming Machines
Telecommunications
Industrial Automation
ATM (Automated Teller Machine) Systems
Multiple terminal control
Office Automation
Kiosks
