CarNetix PSU-PC12, Инструкция по установке и эксплуатации

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CarNetix PSU-PC12 V1.1 Installation Manual
4.0 PSU-PC12 Startup/Shutdown Controller
The PSU-PC12 includes an intelligent, microprocessor-based startup/shutdown
controller. The PSU-PC12 Startup/Shutdown Controller (SSC) provides safe, reliable
control over your Xenarc SC3's bootup and shutdown (full shutdown or hibernation)
processes. The chief concerns of the SSC are protecting your hard drive from corruption,
protecting your car battery from being discharged, and protecting the PSU from
overheating.
4.1 Hibernate/Standby Operation
The PSU-PC12 supports both Hibernate and Standby operation of your Xenarc SC3. This
option is jumper selectable with Pins 5 & 6 on JP1.
When supporting Hibernation the PSU-PC12 completely shuts down all power to the
Xenarc SC3 after the Shutdown Lockout State. However, if Standby mode is selected, the
PSU-PC12 continues to p12V after the Shutdown Lockout State is completed,
but turns off its fans to conserve power. This has several very important ramifications.
1) In Standby your Xenarc SC3 continues to r12V power from the PSU-PC12 so
that it can retain the processor state in RAM. If for some reason the Xenarc SC3 did not
properly shut down when it received the ACPI shutdown pulse from the PSU-PC12, it
will continue to draw current from the PSU-PC12. . If this current exceeds approximately
1 amp the PSU-PC12 will automatically shut itself down.
2) Any USB devices connected to your Xenarc SC3 via the USB connector will continue
to draw current in the Standby state. THIS COULD POTENTIALLY DRAIN YOUR
BATTERY IF THE CURRENT DEMAND OF YOUR USB DEVICES IS VERY HIGH.
Exercise caution when using USB devices in the Standby mode.
.
4.2 SSC Operation States
4.2.1 Idle State
While idle, the SSC monitors your car battery while waiting for the ignition switch to be
turned on. If the battery is below approximately 10.5 volts, the SSC will not allow the
Xenarc SC3 to boot. If the battery is above 10.5 volts, the SSC will allow the Xenarc SC3
to boot normally
.
4.2.2 RunDelay State
When you turn on your ignition, the SSC briefly (approx. 3 seconds) enters the RunDelay
state. During this time the SSC checks to make sure the battery is stable, the ignition
stays on, and then turns on its PSU output to the Xenarc SC3.
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