Digital Equipment AlphaServer 2000, Owner'S Manual, Page: 126 / 196

SCSI Buses
The removable-media bus can be configured to extend into
the internal StorageWorks shelf or to allow expansion from
the connector on the bulkhead at the rear of the enclosure
(Figure 3–6):
• When the bus is configured to extend into an internal
StorageWorks shelf
!
, the bus must be terminated at the
bulkhead connector using the external SCSI terminator
(12-37004-04)
%
.
External expansion from the back of the enclosure is not
allowed in this configuration, as it would violate SCSI bus
length rules.
• When the bus is not extended into an internal StorageWorks
shelf, the internal SCSI terminator (12-41296-01)
#
is
required.
External expansion from the back of the enclosure is
available in this configuration
"
; however, the connecting
SCSI bus cannot exceed 3.4 meters in length (5 megabytes
/second operation). If the bus is not expanded, be sure the
external SCSI terminator (12-37004-04)
%
is in place.
3–42 Options and Upgrades