Troubleshooting guide

Hardware configuration  35
Series A Jumper Explanations
Use these jumper
positions for normal
card operation and
field flash upgrade
of card's main
code.
JPR 2JPR 1
Use these jumper
positions for field
flash upgrade of
card's boot code.
JPR 2JPR 1
This jumper must be
installed during field flash
upgrades. This jumper
must be uninstalled during
normal card operation.
E3
When installed, use this
jumper to latch certain
address lines that some
286 machines and older
may not latch.
JPR 3
Series B Jumper Explanations
When installed, use this
jumper to latch certain
address lines that some
286 machines and older
may not latch.
E3
Use these jumper
positions for field
flash upgrade of
card's boot code.
E2
E1
Use these
jumper positions
for normal card
operation and
field flash
upgrade of card's
main code.
E2
E1