IBM RT PC Options Installation page 65

TNL SN20-9864 (May 1987) to 75X0217
12. Connect C-D1 on the cable bundle to the 20-pin connector on the
drive adapter applicable to your system.
'
I
III,
. 20-Pin Connector
Fixed-Disk and Diskette
13. If your system uses the IBM RT PC Extended ESDI Magnetic Media
Adapter, set Jumper J6 according to which slot the adapter
will occupy.
Slot 1
P S
I.
~I
SIot2
2-28 Options Installation