KBox A-203-sXAL4 – User Guide Preliminary Rev. 0.2
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4.5.
Front Interfaces of the KBox A-203-sXAL4
4.5.1.
X101 - Power Input Connector
The 2-pin connector (X101, Figure 4) provides the power connection of the KBox A-203-sXAL4 to the appropriate DC
main power supply. For pin assignments refer to the subsection 10.1.1.
The external cable connector is a “TE Connectivity 796859-2” 2-pin plug. This power plug is delivered along with the
KBox A-203-sXAL4. Please observe the section 7.1 “Connecting to DC Main Power Supply”.
Figure 5: X101 - 24VDC power input connector
4.5.2.
Controls and LED Indicators
Figure 6: Detail - Power button and LED indicators
Reset Button
Press the reset button to restart your system. Use a pointed object (e.g. a pencil) to press
the recessed reset button (Figure 6, pos. 1).
Power LED (green)
The power LED (marked PWR, Figure 4 and Figure 6, pos. 2) lights up green if the system
powered on.
Prerequisite:
The system must be attached by means of the power cord to an appropriate mains (DC).
SSD LED (orange)
The SSD LED (marked SSD, Figure 4 and Figure 6, pos. 3) indicates storage (SATA/mSATA)
activity.
GP LED (red/green)
The General Purpose LED (marked GP, Figure 4 and Figure 6, pos. 4) is GPIO controlled.
The PG LED lights up red when set to Low and green when set to High.
Even when the system is shut down (via the operating system) there is still a standby
voltage on the baseboard. The unit is only completely disconnected from the DC mains,
when the power is removed.
For preparing the power cable for the KBox A-203-sXAL4 by connecting appropriate wires to
the Phoenix power terminal, refer to subsection 6.2.1 “Cabling”
Pin
Signal Name
1
0 VDC (input)
2
+24 V (input)
1
Reset button
2
Power LED
3
SSD activity LED
4
GP (General Purpose) LED
Pin 2
Pin 1
2
1
3
4
