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3. ACC Function (JACC1)
It is Vehicle PC power mode (Power on/off controlled by Ignition or Power button) if ACC Function sets
up as Enable.
It is Industrial PC power mode (Power on/off controlled by Power button) if ACC Function sets up as
Disable.
4. AT/ATX Jumper (JAT1)
This function will be active if ACC Function (JACC1) sets up Disable (Industrial PC power mode).
5. Power Input Selection (SW2)
To set up the DC input voltage is +12Vdc, +24Vdc or wide range from +9~36Vdc.
6. Vin Work/Shutdown (BIOS)
To set up the startup/shutdown voltage in accordance with DC input voltage as +12Vdc, +24Vdc or wide
range from +9~36Vdc.
Mode
1
2
3
4
The following behaviors happen if ACC Function (JACC1) sets up as Enable:
VMS-BYT won't power on if the DC Input voltage is lower than the startup voltage.
VMS-BYT will automatically power on, if the DC input voltage reaches the startup voltage.
VMS-BYT will automatically power on, if the DC input voltage reaches the startup voltage and power on
delay ends up (the power on delay is Enable in BIOS).
VMS-BYT will automatically power off, if the DC input voltage is lower than shutdown voltage, and the
time exceeds 60sec. If it still doesn't power off and the time exceeds 6min, VMS-BYT will be forced
power off immediately.
7. Power on delay time is selectable by BIOS in following hierarchies
10sec / 30sec / 1min / 5min / 10 min / 15min / 30min / 1hr.
The delay time starts to count if ignition turns on.
User can skip the delay time to turn on VMS-BYT if pressing power button.
VMS-BYT will automatically power on if the delay time ends up.
8. Power off delay time is selectable by BIOS in following hierarchies
20sec / 1min / 5min / 10min / 30min / 1hr / 6hr / 18hr.
The delay time starts to count if ignition turns off.
User can skip the delay time to turn off VMS-BYT if pressing power button.
VMS-BYT will automatically power off, if the delay time ends up. If it still doesn't power off and the time
exceeds 60sec, VMS-BYT will be forced power off immediately.
9. S3, S4 suspend mode
In the vehicle power mode, the S3/S4 is only able to resume from power button.
+12Vdc
Startup
Shutdown
11.5V
10.5V
12.0V
11.0V
12.5V
11.0V
12.5V
11.5V
Quick Reference Guide
+24Vdc
Startup
Shutdown
23V
21V
24V
22V
25V
22V
25V
23V
VMS-BYT Quick Reference Guide
9
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