Figure 5–12
TABLE 5–4
Jumper
Shunt on
Pins 1 + 2 Selects
Shunt on
Pins 2 + 3 Selects
Default
Shunt on
Pins
J2702
Flash PROM
Not To Be Used
1 + 2
J2704
Write Protect
Write Enable
2 + 3
J2804
High Half Booting
Normal Booting
2 + 3
Note -
Jumper J2704 is factory-set so that the flash PROM is write-enabled. You use
the keyswitch located on the front panel to write protect the flash PROM. When the
switch is set to the Locked position, the flash PROM is write-protected. When the
switch is set to the Power-on position or to the Diagnostics position, the flash PROM
is write-enabled. For descriptions of the various keyswitch settings, see “About the
Status and Control Panel” on page 6.
94
Sun Enterprise 250 Server Owner’s Guide
♦
Revision A, June 1998
Summary of Contents for Enterprise 250
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