User manual

7 PCA-6012 User Manual
Chapter 1 Hardware Configuration
1.7 Safety Precautions
1.8 Jumper Settings
This section provides instructions on how to configure your PCA-6012 by setting the
jumpers. It also includes the PCA-6012's default settings and your options for each
jumper.
1.8.1 How to set jumpers
You can configure your PCA-6012 to match the needs of your application by setting
the jumpers. A jumper is a metal bridge that closes an electrical circuit. It consists of
two metal pins and a small metal clip (often protected by a plastic cover) that slides
over the pins to connect them. To "close" (or turn ON) a jumper, you connect the pins
with the clip. To "open" (or turn OFF) a jumper, you remove the clip. Sometimes a
jumper consists of a set of three pins, labeled 1, 2, and 3. In this case you connect
either pins 1 and 2, or 2 and 3. A pair of needle-nose pliers may be useful when set-
ting jumpers.
Warning! Always completely disconnect the power cord from your chassis when-
ever you work with the hardware. Do not make connections while the
power is on. Sensitive electronic components can be damaged by sud-
den power surges. Only experienced electronics personnel should open
the PC chassis.
Caution! Always ground yourself to remove any static charge before touching the
single board computer. Modern electronic devices are very sensitive to
electrostatic discharges. As a safety precaution, use a grounding wrist
strap at all times. Place all electronic components on a static-dissipative
surface or in a static-shielded bag when they are not in the chassis.
Caution! The computer is provided with a battery-powered real-time clock circuit.
There is a danger of explosion if battery is incorrectly replaced. Replace
only with same or equivalent type recommended by the manufacturer.
Discard used batteries according to manufacturer's instructions.
Note! Before installing your PCA-6012 into a chassis, make sure that no com-
ponents on either side of the CPU card can touch any metal parts, espe-
cially the chassis wall and add-on card in the adjacent slot.