IBM RT PC Options Installation page 64

To Fixed-Disk Drives
In Positions C and D
TNL SN20-9864 (May 1987) to 75X0217
11. Look at the diagram of the cable bundle that applies to your system.
To Fixed-Disk Drive
In Position E
Extended ESDI Cable
To Diskette Drives
In Positions A and B
To Drive
Adapter_---~:o--~
In Slot 1 or 2
To Fixed-Disk Drives
In Positions C and D
To Drive Adapter
K"'iO:: _ _ - . . . . £>'
In Slot 1
C-D1
C-C1
C-CD
C-AB
To Diskette Drives
In Positions A and B
Fixed-Disk and
Diskette Drive Cable
C-AB and C-CD or C-CDE are connected to the 34-pin connectors
on the drive adapter, and C-C 1 is connected to the 20-pin connector.
Section 2. Removing and Installing Drives in mM 6150 2-27