ICS Advent 486MBS Series, Product Manual

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Manual Number: 41209-103-1 Page 1-4
486MBS Series Manual
Step 1 - Setting the Jumpers
Your 486MBS Series is equipped with a large number of peripherals and has the ability to run at a
variety of speeds without the need to change any crystals or oscillators. As such, there is a large
number of configuration jumpers on the board. Taken step by step, setting these jumpers is easy.
We suggest you review each section and follow the instructions.
Jumper Types
Jumpers are small copper pins attached to the system board. Covering two pins with a shunt closes
the connection between them. The 486MBS Series examines these jumpers to determine specific
configuration information. There are three different categories of jumpers on the Predator 747.
A. Two pin jumpers are used for binary selections such as enable, disable. Instructions for this
type of jumper are open, for no shunt over the pins or closed, when the shunt covers the pins.
B. Three or four pin jumpers are used for multiple selection. Instructions for these jumpers will
indicate which two pins to cover. For example: for JP x 2-3 the shunt will be covering pins
2 and 3 leaving pins 1 and 4 exposed.
C. Grouped Jumpers are used when a certain function has multiple selections. There are two
grouped jumpers on the board and careful attention should be given when setting these
jumpers. Instructions for grouped jumpers are similar to those above - Jumper Location and
Pin Numbers.
Jumper Locations
Use the diagram below and the tables on the following pages to locate and set the on-board con-
figuration jumpers.
Figure 1-2: Jumper Locations