2
SA7x Technical Description
This chapter describes the following major components of the SA7x enclosure:
• Chassis
• Frame
• Fan assembly
• Operator control panel (OCP)
• Transition board assembly (TB1 and TB2)
• Power supply
• Enclosure-internal cabling
Figure 2–1 shows the SA7x enclosure with RA70 disk drives. The SA71, SA72,
and SA73 enclosures are virtually identical; they all have either an RA71, RA72,
or RA73 disk drive installed.
2.1 SA7x Chassis
The SA7x chassis is made of extruded aluminum with a protective finish.
The enclosure uses the paired upper and lower grooves on each side of the chassis
for mounting the cabinet uprights. Each side is identical, so the enclosure may be
mounted with either its left or right side facing the cabinet uprights.
The power supply slides on rails in the lower-rear portion of the chassis.
Matching rails in the upper half of the chassis are not functional.
SA7x Technical Description 2–1
