IMS 5000 Series Manual page 76

MODEL 431 5" FLOPPY DISK DRIVE COr-rrROLLER BOARD
Legend
JA Address Selection. Normally A7 and A6 are shunted to the
right and A5 and A4 are shunted to the left.
JB Vector Interrupt Levd sdection.
JC DOuble-sidec' Qrive sdection.
J1 Connector to floppy disk drive.
Figure 2-27
431 5
n
Floppy Disk Drive Controller Board
Ii\~S Interr,atiollal
5000 Series Microcomputer s/7.0 1.8 3/page 74