Ultra Start 450 SERIES Instruction Manual Page 93

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Chapter 4 Hardware Configuration 73
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.
Jumper
Shunt on
Pins 1 + 2 Selects
Shunt on
Pins 2 + 3 Selects
Default
Shunt
on Pins Signal Controlled
J3102 Flash PROM Not To Be Used 1 + 2 FLASH PROM SEL
J3103 Write Protect Write Enable 2 + 3 FLASH PROM PROG
ENABLE
J5501 High Half Booting Normal Booting 2 + 3 XOR LOGIC SET
J3304
J3103
J3102
J2701
J5501
J3303
Flash PROM
jumpers
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