Chapter 2 - Installing Megaplex Hardware; Eisa Installations - Equinox Systems MEGAPLEX Hardware Reference Manual

CHAPTER 2
INSTALLING MEGAPLEX HARDWARE
This chapter details the procedures for installing the MEGAPLEX
MCC 24x4, MEGAPLEX/2 MCC/2 24x4 and MEGAPLEX/RS MCC/RS
24x4 host controller boards into a computer and covers the following
topics:

EISA installations

Installing a Single MEGAPLEX Board
Installing Additional MEGAPLEX Boards
Intermixing MEGAPLEX & MEGAPORT Boards
PS/2-Type Hardware Configuration
RS/6000 Hardware Configuration
For MEGAPLEX, MEGAPLEX/2 and MEGAPLEX/RS there is no
hardware configuration required for the host controller boards; there
are no switches to set. The boards are entirely soft-configured during
the device driver installation.
EISA Installations
When installing a MEGAPLEX board in an EISA system, a jumper
must be installed to permit the configuration scheme to work properly.
Install the jumper across the two pins designated PA0 on the top of the
board as shown in Figure 2-1. This jumper forces the host controller
board to occupy addresses 0x340 and 0x341 in the computer memory.
These addresses should not be used by another device.
Figure 2-1. Installing the EISA configuration jumper
Installing MEGAPLEX Hardware 7