Corvalent Gator Mini-ITX, Руководство по установке

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Gator Mini-ITX – Installation Guide
Step 1 Setting the Jumpers
Your Gator Mini-ITX is equipped with a large number of peripherals. As such, there are 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.
Special note about operating frequency:
The Gator Mini-ITX has the ability to run at a
variety of speeds without the need to change any
crystal, oscillator or jumper.
Jumper Types
Jumpers are small copper pins attached to the system board. Covering two pins with a shunt closes the connection
between them. The Gator Mini-ITX examines these jumpers to determine specific configuration information. There
are two different categories of jumpers on the Gator Mini-ITX.
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 selections. 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.
How to identify pin number 1 on Figure 1-1 : Looking to the solder side (The board side with fewer components) of
the PCB (Printed Circuit Board), pin number 1 will have a squared pad
J
. Other pins will have a circular pad
Q
.
They are numbered sequentially.
Double row jumpers are numbered alternately, i.e. pin number 2 is in the other row, but in the same column of pin
number 1. Pin number 3 is in the same row of pin 1, but in the next column and so forth.
2