Primary/Alternate Address Jumper - IBM RT User's Setup Manual

Prim ary/A ltern ate A ddress Jum per
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Options Installation
The position of jumper module J3 sets the adapter I/O address as
Prim ary (the default setting) or A lternate. Ju m p er J3 also sets the
DMA level at 5 for Prim ary and 6 for A lternate. To change .13, do
the following:
1. Carefully insert a small, flat-bladed screwdriver under the .13
jum per module, a lte rn ately lifting the ends to extract the
module evenly.
W arning:
Do n o t b e n d th e pins!
2. T urn the module 180° an d reinstall.
A J Z IF 1 5 2