Table of Contents
Advertisement
Chapter 2 Installation
2.1 Switch and Jumper Settings
Before you install the PCL-839+, you need to select the card's base
address, and set the limit switch configurations as well as the interrupt
level that the card will use. This section describes this procedure in detail.
2.1.1 Setting the PCL-B39 Base I/O address (S1)
The PCL-839+ requires 16 consecutive I/O addresses. DIP switch S1
(shown below) sets the base I/O address.
Choose a base address that is not in use by any other I/O device. A con-
flict with another device may cause one or both devices to fail. The fac-
tory address setting (hex 300) is usually free as it is reserved for PC
prototype boards.
Switch settings for various base addresses appear below:
Table 2.1: Card I/O addresses (S1)
Range (hex)
200 - 20F
210 - 21F
:
*300 - 30F
:
3F0 – 3FF
* = default
Switches 1-6 control the PC bus address lines as follows:
PCL-839+ User Manual
Switch position
9
8
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
7
6
ON
ON
ON
ON
ON
ON
OFF
OFF
8
5
4 <=Addr.
Line
ON
ON
ON
OFF
ON
ON
OFF
OFF
Advertisement
Table of Contents
