Product manual

CDA 7 Hardware
77 A1 69UP Rev00 2-11
2.5 Channel Attachments
2.5.1 Ultra SCSI Channel Attachement
CDA 7 can attach to Ultra SCSI channels and Fibre Channels, or a mix of channel
types. The physical connection to a CDA 7 SCSI channel interface occurs at the
connectors on the channel adapters.
The following figure illustrates the type of SCSI attachments.
ULTRA FAST-WIDE
SCSI
DIRECTOR
DIFFERENTIAL
WIDE
SCSI HCST
Figure 2-4. ULTRA SCSI Attachment
When connecting to hosts with differential Ultra SCSI interface, use differential
P-cables that are designed for wide SCSI applications (see labeling on cable).
With the Ultra SCSI adapters, there are special connecting cables that have a bare
part that must be installed in the clamp grounding of the CDA. The switchable port
terminations must be set to ENABLE and the corresponding LED is on. The
TERMPOWER is set to VCC (the down position).