Sun Microsystems 60 Flash Prom Jumpers, Enclosure Basics, Flash Prom Jumper Settings

C.4.2 Flash PROM Jumpers

Flash PROM jumpers J2703 and J2704 are for reprogramming specific code blocks and remote programming of the flash PROM. TABLE C-17identifies 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.

TABLE C-17	Flash PROM Jumper Settings
			Default
			Jumper on
Jumper	Pins 1 + 2 Select	Pins 2 +3 Select	Pins	Signal Controlled
J2703	Write protect	Write Enable	1 + 2	FLASH PROM PROG
				ENABLE
J2704	High half	Normal	2 + 3	XOR LOGIC SET
	booting	Booting

C.5 Enclosure

The system unit uses an enclosure that reflects style, 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.

■Two 1-inch single-connector 3.5-inch disk drives

■Two plug-in UltraSPARC modules

Appendix C Functional Description C-47