WinSystems PPC65BP-1 Series, Руководство по эксплуатации продукта

Страница: 56 / 63

PPC65BP-1x/
v1.0 www.winsystems.com Page 56
Appendix A. Best Practices
This section outlines the best practices for operating the PPC65BP-1x in a
safe and effective manner that does not damage the board. Please read
this section carefully.
Power Supply
Power Supply Budget
Evaluate your power supply budget. It is usually good practice to budget
twice the typical power requirement for all of your devices.
Power Harness
Minimize the length of the power harness. This reduces the amount of
voltage drop between the power supply and the PPC65BP-1x.
Gauge Wire
Use the largest gauge wire available for your application and connector.
Most connector manufacturers have a maximum gauge wire they
recommend for their pins.
Power Down
Make sure that power has been removed from the system before making
or breaking any connections.
I/O Connections OFF —I/O Connections should also be off before
connecting them to the embedded computer modules or any I/O cards.
Connecting hot signals can cause damage whether the embedded system
is powered or not.
Avoid Electrostatic Discharge (ESD) —Only handle the circuit board and other
bare electronics when electrostatic discharge (ESD) protection is in place.
Having a wrist strap and a fully grounded workstation is the minimum ESD
protection required before the ESD seal on the product bag is broken.
Use Proper Power Connections (Voltage) —When verifying the voltage,
measure it at the power connector on the PPC65BP-1x. Measuring it at the
power supply does not account for voltage drop through the wire and
connectors.
Power Supply OFF —The power supply should always be off before it is
connected to the I/O Module. Do not hot-plug the PPC65BP-1x on a host
platform that is already powered.