Connectivity (Cables/Devices)

Connectivity (Cables/Devices)

If you attach both internal and external SCSI devices to the host adapter, you must terminate the last external device and the last internal device. (This applies to both the AHA-2940 and AHA-2940W adapters.)

If you connect external devices to the AHA-2940W adapter, you can only attach devices to one of the internal SCSI connectors.
If you connect both internal and external SCSI devices, you must also change the host adapter termination settings from the default, because the host adapter is now in the middle of the SCSI bus. See 'Termination (AHA-2940/2940W Adapters)'

Component	Requirement
Maximum external cable length	3 meters (9.8 ft.)
Maximum combined length of all	6 meters (19.7 ft)
cables connected internally
and externally to each adapter
SCSI Devices	Supports single-ended devices only
CD-ROM Drive	The CD-ROM drive has a 50-pin connector.
	If it is connected to the 68-pin connector
	on the adapter using a 68-pin to 68-pin
	cable, a 16/8 Bit Converter must be used
	to connect the CD-ROM drive to the 68-pin cable.
AHA-2940 and AHA2940W	50-pin to 50-pin SCSI ribbon cable
50-pin internal connector
AHA-2940W 68-pin internal	68-pin to 68-pin SCSI ribbon cable
connector
AHA-2940 50-pin external	50-pin to 50-pin SCSI shielded cable
connector
AHA-2940W 68-pin external	68-pin to 68-pin SCSI shielded cable
connector

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