Table of Contents
Advertisement
1: 1: Installing the PCI-AC48 Adapter Card
1: Installing the PCI-AC48
Adapter Card
Introduction
The PCI-AC48 is an isolated, high-speed
adapter card designed to link RS-485 or
RS-422 serial devices, such as Opto 22's
B3000 brains, with computers using the
Peripheral Component Interconnect (PCI)
bus. The PCI-AC48 is compatible with
computers that feature a standard 33 MHz
PCI bus. This adapter card is ideal if you have
been using Opto 22's AC37 adapter card in
an application, but must upgrade to a newer
computer that uses the PCI bus rather than
the ISA bus.
Two serial ports on the adapter card provide
reliable communication. These ports can be
used as two 2-wire ports or as one 4-wire
port (2- and 4-wire modes cannot be used at
the same time). Buffering on the card
prevents loss of data, and the serial
communication lines and the adapter card
itself are isolated from transient voltages. The
adapter card also provides tri-state control in hardware, 64-byte FIFO, and 16550 UART-compatible
registers. The PCI-AC48 adapter card requires 5 VDC @ 600 mA and operates at temperatures of 0 °C
to 70 °C. The card is configured using DIP switches. Six LEDs on the card indicate bus operation or
user application status.
Support for Opto 22 RS-422/485-based I/O
The PCI-AC48 supports communication with several popular Opto 22 RS-422/485-based I/O
systems, including SNAP serial brains (the B3000), mistic
PCI-AC48 can also communicate with mistic controllers.)
A mistic Remote I/O bus uses one twisted-pair cable for communication; however, a second pair can
optionally be used for I/O systems needing mistic interrupt capability.
Chapter 1
PCI-AC48 Adapter Card
™
Remote I/O, and Optomux
PCI-AC48 User's Guide
®
I/O. (The
1
1
Advertisement
Table of Contents
Troubleshooting
