6
AHA-1530P/1532P Installation Guide
Part Number: 510484-00, Rev. B
Print Spec Number: 492211-00
Current Date: 4/27/94
ECN Date: 5/3/94
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Connecting Internal SCSI Peripherals
Caution:
AHA-1530P/1532P host adapters
support only single-ended SCSI devices. Do
not connect differential SCSI devices to the
host adapter. Read the device documentation
to determine whether a SCSI device is single-
ended or differential.
Follow these steps to connect the host adapter to
SCSI devices mounted inside the PC case. Use the
internal SCSI cable included with your host adapter.
1
Disable termination on all internal SCSI devices.
Read the device documentation if you are not
sure how to do this.
2
Plug the 50-pin female connector on one end of
the internal cable into the host adapter’s internal
SCSI connector. (This is the end of the cable that
does not have a terminator attached to it.) Be sure
to match pin 1 on the cable with pin 1 on the host
adapter ’s internal SCSI connector.
Pin 1 is marked with a contrasting color on one
edge of the ribbon cable. A small triangle marks
pin 1 on the host adapter SCSI connector.
3
Plug the next female connector on the cable into
the connector of the closest internal SCSI device.
4
Plug the next female connector on the cable into
the connector of the second internal SCSI device,
if there is one. The terminator on the end of the
internal cable will extend beyond the second
internal device.
If you have more than two internal SCSI devices,
you must get a 50-pin internal cable with enough
connectors for all the devices. Be sure to terminate
the last internal device attached to the cable.
5
If you are using the AHA-1532P onboard floppy
drive controller, connect the 34-pin floppy ribbon
cable to the host adapter’s floppy connector. Be
sure to maintain pin-1 orientation.
