National Instruments PCMCIA Serias, Начало работы

Страница: 15 / 62

Chapter 1 Introduction
PCMCIA Serial for Windows 98/95 1-2 © National Instruments Corporation
What You Need to Get Started
Make sure you have all of the following items before you attempt to install
the serial hardware and software:
❑
Windows 95 or Windows 98 installed on your computer
❑
One of the following serial interfaces, which is included in your kit:
PCMCIA-232 (one, two, or four port)
PCMCIA-485 (one or two port)
❑
3.5 in., high-density disk (1.44 MB), NI Serial Software for
Windows 95/98 and Windows NT , which is included in your kit
❑
Adapter cable from PCMCIA card to DB-9 connector, which is
included in your kit
Optional Equipment
Call National Instruments for more information about the following
optional equipment:
• DB-9 RS-485 termination connector
• RS-232 9-pin to 9-pin null modem cable
• RS-232 9-pin to 25-pin null modem cable
Serial Hardware Overview
The serial hardware gives you a variety of solutions for serial
communications. The PCMCIA-232 interfaces work with the RS-232
protocols, and the PCMCIA-485 interfaces work with the RS-422 and
RS-485 protocols. You can use the PCMCIA-232 hardware for serial
communication up to distances of 50 ft. You can connect the PCMCIA-485
hardware with up to 31 devices using serial cable lengths up to 4,000 ft.
The PCMCIA-232 is available with one, two, or four ports. The
PCMCIA-485 is available in a one-port version or two-port version. All
PCMCIA cards come with cables for each port that terminates in a standard
DB-9 D-Sub connector. Throughout this manual, references to PCMCIA
serial interfaces generally refer to all port versions of the interfaces.