Adaptec AMM-1572 - Manual (Page 58)

3-14
AMM-1570/1572 User’s Guide
AMM-1570/1572 User’s Guide
Stock Number: 510526-00, Rev. B
Page: 3-14
Print Spec Number: 492379-00
Current Date: 3/7/94
ECN Date: 3/8/94
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Connecting Floppy Drives (AMM-1572 only)
Floppy disk drives are connected to the host adapter by a 34-pin
floppy ribbon cable with a 34-pin header connector. Up to two
floppy disk drives can be connected to the host adapter.
Note: The AMM-1572 supports only floppy primary
address 3F0h - 3F7h. The IRQ channel is hard-wired for
channel 6 and the DMA channel is hard-wired for
channel 2.
To connect floppy disk drives:
1 Connect one end of the 34-pin floppy ribbon cable to the
floppy connector on the host adapter.
Note: When cabling the 34-pin floppy ribbon cable
to both the host adapter and floppy disk drive(s),
make sure that Pin 1 orientation is maintained. Pin
1 of the floppy ribbon cable is designated by a col-
ored stripe on one edge of the ribbon cable. Pin 1
of the host adapter or floppy drive connector is
usually designated by an arrow or delta symbol
(▲) on the connector.
Figure 3-12. 34-pin Floppy Cable to Host Adapter
Floppy Connector
Pin 1
Floppy Ribbon
Cable
Colored
Stripe