Adaptec 2740A User Manual - Page 37

Internal Devices Only, External Devices Only, AHA-2740 Series User's Manual

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AHA-2740 Series User's Manual Internal Devices Only When only internal devices are connected to the host adapter, the last device connected to the SCSI ribbon cable and the host adapter itself should be terminated, as shown in Figure 2-3. INTERNAL DEVICE NO TERMINATION INTERNAL DEVICE TERMINATION ENABLED HOST ADAPTER TERMINATION ENABLED Figure 2-3. Internal Devices Only External Devices Only When only external devices are connected to the host adapter, both the last device on the external chain of devices and the host adapter itself should be terminated, as shown in Figure 2-4. HOST ADAPTER TERMINATION ENABLED 2-10 EXTERNAL DEVICE NO TERMINATION EXTERNAL DEVICE NO TERMINATION EXTERNAL DEVICE TERMINATION ENABLED Figure 2-4. External Devices Only Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 2-10) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93

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Internal Devices Only
When only internal devices are connected to the host adapter, the
last device connected to the SCSI ribbon cable and the host adapter
itself should be terminated, as shown in Figure 2-3.
External Devices Only
When only external devices are connected to the host adapter,
both the last device on the external chain of devices and the host
adapter itself should be terminated, as shown in Figure 2-4.
HOST ADAPTER
TERMINATION ENABLED
INTERNAL DEVICE
NO TERMINATION
INTERNAL DEVICE
TERMINATION
ENABLED
Figure 2-3.
Internal Devices Only
EXTERNAL DEVICE
NO TERMINATION
EXTERNAL DEVICE
NO TERMINATION
EXTERNAL DEVICE
TERMINATION
ENABLED
HOST ADAPTER
TERMINATION
ENABLED
Figure 2-4.
External Devices Only
Adaptec AHA-2740 Series User’s Manual
Stock Number:
510381-00
/
Rev. C
(Page 2-10)
Print Spec Number:
491709-00 Rev C
Current Date:
9/1/93
ECN Date:
9/14/93
AHA-2740 Series User’s Manual
2-10