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AHA-2740W/2742W/2744W User’s Guide
AHA-2740W/2742W/2744W User’s Guide
Stock Number: 510647-00, Rev. A
Page: 2-20
Print Spec Number: 492897-00
Current Date: 8/3/94
ECN Date: 8/9/94
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3
To connect a second internal SCSI device, plug the middle
connector of the SCSI ribbon cable to the SCSI connector on the
second internal SCSI device.
4
To connect three or more internal 8-bit SCSI devices to a SCSI
bus, obtain a 50-pin SCSI ribbon cable with enough connectors
to accommodate all of your internal 8-bit SCSI devices.
Connecting 16-bit Internal Wide SCSI Devices
16-bit internal Wide SCSI devices use a 68-pin flat SCSI ribbon cable
with P-cable connectors and are connected to the host adapter in the
same manner as standard 8-bit SCSI devices. The cable has connec-
tors at each end and additional connectors attached in the middle.
One end of the cable is attached to the internal 68-pin Wide SCSI
connector on the host adapter, and the Wide SCSI devices are
attached to the remaining connectors. Internal Wide cable connec-
tors are keyed and can only be plugged in one way; pin-1 orienta-
tion is automatic. Up to 15 internal Wide SCSI devices can be
connected to the 68-pin internal SCSI connector.
Figure 2-12. Connecting a Second Internal SCSI Device
Pin 1
Internal SCSI
Device
Colored Stripe
To 1st Internal
SCSI Drive
To Host
Adapter
