Adaptec AHA-2742T User Manual - Page 47

Floppy Diskette Drives, AHA-2740 Series User's Manual

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AHA-2740 Series User's Manual 3 To connect subsequent external SCSI devices, obtain additional external cables and chain each device to the previous device until all external SCSI devices have been connected, as shown in Figure 2-11. EXTERNAL SCSI DEVICES EXTERNAL SCSI CABLES Figure 2-11. Connecting Multiple External SCSI Devices Floppy Diskette Drives Floppy diskette drives connected to the floppy connector on the host adapter are not part of the SCSI bus; floppy diskette drives are controlled by the non-SCSI floppy diskette controller on the host adapter. Connecting Floppy Diskette Drives (AHA-2742/2742T Only) The floppy connector on the AHA-2742/2742T uses a 34-pin floppy ribbon cable with a 34-pin header connector. Make sure to maintain Pin 1 orientation as described in previous section Connecting Internal SCSI Devices. Note If you are not using the floppy controller on the AHA-2742/2742T, be sure to disable it by removing the jumper shunt on Jumper J4. 2-20 Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 2-20) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93

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3
To connect subsequent external SCSI devices, obtain addi-
tional external cables and chain each device to the previous
device until all external SCSI devices have been connected, as
shown in Figure 2-11.
Floppy Diskette Drives
Floppy diskette drives connected to the floppy connector on the
host adapter are not part of the SCSI bus; floppy diskette drives
are controlled by the non-SCSI floppy diskette controller on the
host adapter.
Connecting Floppy Diskette Drives (AHA-2742/2742T Only)
The floppy connector on the AHA-2742/2742T uses a 34-pin
floppy ribbon cable with a 34-pin header connector. Make sure to
maintain Pin 1 orientation as described in previous section
Connecting Internal SCSI Devices.
Note
If you are not using the floppy controller on the AHA-2742/2742T,
be sure to disable it by removing the jumper shunt on Jumper J4.
EXTERNAL SCSI
CABLES
EXTERNAL SCSI
DEVICES
Figure 2-11.
Connecting Multiple External SCSI Devices
Adaptec AHA-2740 Series User’s Manual
Stock Number:
510381-00
/
Rev. C
(Page 2-20)
Print Spec Number:
491709-00 Rev C
Current Date:
9/1/93
ECN Date:
9/14/93
AHA-2740 Series User’s Manual
2-20