IBM RT PC Options Installation page 78

TNL SN20-9864 (May 1987) to 75X0217
IBM Personal Computer AT Fixed-Disk and Diskette Drive Adapter
The IBM Personal Computer AT Fixed-Disk and Diskette Drive Adapter
is used with the R40 fixed-disk drive. You may use up to two Personal
Computer AT Fixed-Disk and Diskette Drive Adapters. The adapter in
slot 1 can operate one or two R40 fixed-disk drives in drive positions C
and D; in slot 2, the adapter can operate an R40 fixed-disk drive in drive
position E. The Personal Computer AT Fixed-Disk and Diskette Adapter
will not operate an R 70 fixed-disk drive.
Before installing the drive adapter, you must set the jumpers.
~,\\~
L-J\\\L-J
To set the jumpers, lift the jumpers off the pins and install them as
shown below:
:=~ DD~~~~ ~~ ~
0
~
::J
0 :: :
=
~ ~
c:::::J C::J
~ c=J 0 .... c=J c::=J 0
:::J
CJ
c:=J c=J c=J c:=J c::::::J c=J c:::=J
=::J
CJ
c=J
~ c:::::::J ~ c:::::::J c:::::::J c::::::J
c=:::J
JD
§SDDDc:::::::J c=::J
D
u~~u
--==-~
I l r - l
Jumper Position
For First Adapter
(Slot 1)
Jumper Position
For Second Adapter
(Slot 2)
Note: Do not install the drive adapter until told to do so in the drive
installation instructions.
Section 2. Removing and Installing Drives in IBM
6150 2-37