2-25
Getting Started
AHA-2740W/2742W/2744W User’s Guide
Stock Number: 510647-00, Rev. A
Page: 2-25
Print Spec Number: 492897-00
Current Date: 8/3/94
ECN Date: 8/9/94
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Connecting Floppy Drives (AHA-2742W and AHA-2744W 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 diskette drives can be connected to the host adapter.
Note:
If you are not using the floppy controller on the
AHA-2742W and AHA-2744W, be sure to disable it by
removing the jumper connector on jumper J1.
When connecting your floppy drives, make sure to maintain pin-1
orientation as previously described in Maintaining Pin-1 Orientation
on page 2-18.
Note:
The AHA-2742W and AHA-2744W support 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 diskette drives, follow these steps:
1
Connect one end of the 34-pin floppy ribbon cable to the
floppy connector on the host adapter.
Figure 2-19. 34-pin Floppy Cable to Host Adapter
Pin 1
Floppy Ribbon
Cable
Floppy
Connector
Colored
Stripe
