Advantech TREK-303, User Manual

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21 TREK-550/303 User Manual
Chapter 4
Jumper
S
ettings
and
Connectors
4.2 Jumper Settings
4.2.1 CMOS Clear for External RTC (JP2)
4.2.2 Power Input Voltage Setting (JP1)
TREK-550 must be configured properly according the vehicle power input range.
4.2.3 Pin 9 of COM3 Function Selection (JP3)
Pin 9 on COM3 port can be configured as RI, 5 V or 12 V output.
4.2.4 Pin 9 of COM8 Function Selection (J3)
Pin 9 on COM8 port can be configured as RI, 5 V or 12 V output.
Warning! 1. To avoid damaging the computer, always turn off the power supply
before setting “Clear CMOS”.
2. Set the jumper back to “Normal Operation” before turning on the
power supply!
Table 4.5: Clear CMOS / External RTC (JP1)
Normal Operation (Default) Clear CMOS
1 2 3
1 2 3
Table 4.6: Power Input Voltage Selection (JP1)
12 V Input (Default) 24 V Input
1 2 3
1 2 3
Table 4.7: Pin 9 of COM3 Function Selection (JP3)
RI
+5 V
DC
(max. 500 mA) +12 V
DC
(max. 250 mA)
3
1 5
3
1 5
3
1 5
Table 4.8: Pin 9 of COM8 Function Selection (JP3)
RI
+5 V
DC
(max. 500 mA) +12 V
DC
(max. 250 mA)
3
1 6
3
1 6
3
1 6