ADLINK STC2-AL/KL Industrial Control Tablet BIOS and Drivers

Ethernet card driver - Intel I225 series, AL supports 1Gbps, KL supports 2.5Gbps.

Management Engine Driver - Provides underlying interfaces such as power management and temperature monitoring.

Serial I/O driver - enables COM ports to be enumerated as standard serial ports in the system.

DI/O driver (discrete I/O, if available) - if extended GPIO functionality is required.

3.2 Installation details of each driver

Chipset driver: Execute Setup. exe and restart after installation. This driver will update the INF file to correctly name unknown devices such as the "PCI Simple Communication Controller" in the Device Manager.

Graphics card driver: In addition to basic display functions, it also provides options such as brightness adjustment, rotation, and multi screen expansion. If the screen orientation is incorrect after installation, it can be adjusted through the system display settings.

Network card driver: After installation, two "Intel I225" network cards can be seen in Device Manager, supporting jumbo frames and VLANs, suitable for industrial Ethernet protocols such as PROFINET and EtherNet/IP.

Management engine driver: This driver is often overlooked, but if not installed, SEMA tools may not be able to read sensor data such as temperature and voltage, which also affects the system's sleep and wake-up functions.

Serial I/O driver: After installation, COM1 and COM2 will appear under "Ports (COM and LPT)". At this point, users can further set the baud rate, flow control, etc. in the device manager (in conjunction with BIOS settings).

3.3 Driver Acquisition and Troubleshooting

All drivers can be downloaded from the corresponding product page on the ADLINK official website. If installation fails, please check if you are running with administrator privileges and confirm that the Windows version is 64 bit IoT Enterprise. Additionally, some drivers require dependencies NET Framework， Can be installed in advance.

Practical suggestions for power and power management

The STC2 series supports 9-36V wide voltage input and comes standard with a 12V adapter. Power consumption varies by model and load:

10WP-AL: Approximately 29.4W at full load

15WP-AL: Approximately 39.8W

10WP-KL: approximately 40.9W

15WP-KL: approximately 50.4W

21WP-KL: Approximately 64.1W

When selecting power supplies on site, it is recommended to reserve capacity at 1.5-2 times the peak power consumption and choose industrial grade power supplies with overcurrent protection (OCP). At the same time, pay attention to the polarity of the power cord (DC+, DC -, PE grounding), ensure that the chassis is well grounded, and avoid EMI interference.

Installation and heat dissipation precautions

In terms of mechanical dimensions, 10WP is 256 × 174 × 44mm, 15WP is 390 × 239 × 47mm, and 21WP is 524 × 316 × 51mm. All support VESA 75 × 75 and 100 × 100mm installations. Due to the passive heat dissipation (fanless) of the device, it is necessary to ensure that the installation environment is well ventilated and that the rear heat sink is not obstructed. The working temperature range is -10 ℃~50 ℃ (based on SSD). If the ambient temperature is close to the upper limit, it is possible to consider adding a cooling fan or reducing the load.

Common problems and quick troubleshooting

No display on screen: Check if the "LFP Panel Type" in BIOS is selected for the correct resolution; If using an external DisplayPort, confirm that the 'FM Display Type' setting is correct.

Serial communication failure: First, check if the COM mode (232/422/485) in BIOS matches the device; Next, check the wiring (especially the differential signal polarity of RS-422/485); Finally, confirm the parameters such as baud rate and parity in the operating system.

Watchdog not working: Confirm that Power Up Watchdog is set to Enabled and write a dog feeding program in the operating system (refer to the SEMA API provided by ADLINK).

The system cannot boot from SSD: Check the "UEFI Hard Disk Drive BBS priorities" in the BIOS Boot menu to ensure that SSD is prioritized; If using Legacy mode, CSM needs to be enabled (only available in KL series).