Appendix C Functional Description C-47

C.4.2 Flash PROM Jumpers

Flash PROM jumpers J2703 and J2704 are for reprogramming specificcode blocks
and remote programming of the flash PROM. TABLEC-17 identifies the flash PROM
jumper settings. The default shunt setting of J2703 is on pins 1 and 2. Placing the
shunt on pins 2 and 3 enables reprogramming of the flash PROM.
C.5 Enclosure
The system unit uses an enclosure that reflectsstyle, ergonomics, serviceability,
functionality,versatility, and quality. Physical orientation allows for a rack-mount,
desktop, or under desk installation. The enclosure design complies with all
necessary environmental and regulatory specifications.

C.5.1 Enclosure Basics

Overall dimensions of the enclosure are 17.70 inches (45.00 cm) x 7.50 inches
(19.00 cm) x 17.60 inches (49.60 cm). The enclosure houses:
One 3.5-inch diskette drive
One 1.6-inch CD-ROM drive
One spare 3.5-inch device slot
Note – The CD-ROM drive slot is used for either the CD-ROM drive or an
X-option-selected tape drive.
Two1-inch single-connector 3.5-inch disk drives
Twoplug-in UltraSPARC modules
TABLEC-17 Flash PROM Jumper Settings
Jumper Pins1 + 2 Select Pins2 +3 Select
Default
Jumperon
Pins SignalControlled
J2703 Writeprotect WriteEnable 1+ 2 FLASHPROM PROG
ENABLE
J2704 High half
booting Normal
Booting 2 + 3 XORLOGIC SET