IBM RT User's Setup Manual page 183

2-8 Options Installation
• IBM RT PC Extended ESDI Magnetic Media Adapter
The IBM RT PC Extended ESDI Magnetic Media Adapter is
used with E70, El 14 and 310 megabyte fixed-disk drives and
only
operate with R40 or R70 fixed-disk drives. In addition,
will not
the Extended ESDI Magnetic Media Adapter
the IBM RT PC Advanced Processor Card (APC) or with the
IBM RT PC Enhanced Advanced Processor Card.
Up to three E70, El 14 or 310 megabyte fixed-disk drives can be
used with a single Extended ESDI Magnetic Media Adapter.
If you are installing a second drive, use the chart on 2-9 and 2-10 to
determine the correct drive position and installation procedures for
the new drive.
If you are installing a third drive, use the charts on 2-11 through
2-13 to determine the correct drive position and installation
procedures for the new drive.
be used with
must