About Flash Prom Jumpers - Sun Microsystems Enterprise 250 Owner's Manual

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TABLE 5–3
Shunt on
Jumper
Pins 1 + 2 Selects
J2604
EIA-232D
J2605
EIA-232D

About Flash PROM Jumpers

The system uses flash PROMs to permit the reprogramming of specific code blocks
that are held in non-volatile system memory, and to permit remote reprogramming
of that code by an authorized system administrator over a local area network.
Three jumpers on the main logic board affect flash PROM operation. The figure
below shows the jumper locations, and the table describes their function.
Default
Shunt on
Shunt
Pins 2 + 3 Selects
on Pins
EIA-423
2 + 3
EIA-423
2 + 3
Hardware Configuration
93

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