ADLINK MXE-210 Compact Fanless Industrial Control Computer Hardware Deployment and Debugging Guide

BIOS Lock: Protects Flash from malicious writes when enabled (default enabled).

4.4 Boot

Quiet Boot: If enabled, display OEM logo; if disabled, display POST diagnostic information.

Fast Boot: Skip some self checks to accelerate startup.

Boot Option Priorities: Set the boot order (UEFI priority or Legacy).

Watchdog (WDT) and SEMA management software

5.1 Watchdog mechanism

The MXE-210 has a built-in hardware watchdog timer, which is controlled through SEMA 3.5 API or driver program. Typical workflow:

The application calls WDT initialization and sets a timeout value (in seconds or minutes).

Start the timer.

The application periodically 'feeds the dog' (Reset WDT).

If the system deadlocks or the application crashes, the hardware will automatically reset the system after timeout.

Windows environment: SEMA Utility and WDT driver (located on the accompanying CD or official website) need to be installed first, and the API can be called with administrator privileges.

Linux environment: It can be controlled through SEMA open source library or directly by operating LPC I/O registers. Specific implementation needs to refer to the SDK documentation.

5.2 SEMA Intelligent Management

SEMA (Smart Embedded Management Agent) provides:

System health monitoring: real-time CPU temperature, system temperature, input voltage, power consumption.

Device identity information: serial number, firmware version, running statistics.

User defined Flash: 1KB storage area for users to store configuration parameters or device identifiers.

SEMA can be easily integrated into SCADA or IoT platforms through HTTP API or local library calls.

Quick check of key interface pins

6.1 DB9 serial port (COM1/COM2)

Pin RS-232 RS-422 RS-485

1 DCD# TXD- 485-

2 Rx TXD+ 485+

3 Tx RXD+ N/C

4 DTR# RXD- N/C

5 GND N/C N/C

When using RS-485 two-wire system in practice, only Pin1 (DATA -) and Pin2 (DATA+) need to be connected, and 120 Ω terminal resistors need to be added at both ends of the bus.

6.2 Internal Expansion Interface Selection

HSUART（CN22）：6-pin wafer， Containing 3.3V, Rx, Tx, CTS, RTS, GND, it can be used to connect GPS modules or industrial serial sensors.

I2C (CN18/CN20): It introduces different I2C buses, including clock, data, and interrupts (partially), and can mount multiple slave devices.

USB 2.0 (CN19): Standard 4-pin+shielded, can be pulled out to the front panel or connected to a dongle.

Clear CMOS (CN24): Short circuit Pin1-Pin2 to restore BIOS factory settings - suitable for emergency recovery when unable to start due to incorrect configuration.

Key points for on-site troubleshooting and maintenance

7.1 No response when powered on

Check if the DC input voltage is within the range of 6-36V and if the polarity is correct.

Confirm if the power adapter meets the minimum output current (at least at full load) 4.2A@6V or 0.7A@36V ）.

Observe if the Standby LED (blue) on the front panel is lit - if it is lit but the system does not start, it may be a motherboard malfunction.

7.2 Serial communication failure

Enter BIOS to confirm that the mode settings of COM1/COM2 match the actual wiring.

Use a self loop (Pin2-Pin3 short circuit) to test if the RS-232 transceiver is functioning properly.

During RS-485 long-distance communication, check the terminal resistance and shield grounding.

7.3 System overheating, frequency reduction or shutdown

Check if the heat dissipation channel is blocked (leave a 5cm clearance at the top).

If using an extended temperature model, confirm if an industrial grade mSATA/SATA SSD is installed - regular commercial grade SSDs may fail at high temperatures.

Read the temperature curve in BIOS System Management and confirm that the heat sink is in good contact with the CPU.

7.4 Mini PCIe module not recognized

Confirm that the module is inserted into the correct slot (Slot 1 for mSATA/storage, Slot 2 for communication/USIM).

Check if the USIM card is installed properly and if the metal contacts are oxidized.

Confirm in BIOS Onboard Device Configuration that the corresponding LAN/WiFi device is not disabled.

7.5 Clear CMOS Operation

If it cannot start due to BIOS incorrect configuration, you can short-circuit Pin1 and Pin2 of CN24 (using jumper caps or tweezers), power on for 5 seconds, remove the jumper, and CMOS will return to default.

Environmental Compliance and Safety Warning

Working temperature: Standard model 0~50 ° C; Extended model -20~70 ° C (requires industrial grade storage); The super extended model (MXE-212) can reach -40~85 ° C (requires the installation of a heat sink kit).

Anti vibration and anti impact: 5 Grms vibration (5-500Hz), 100G half sine impact (11ms), suitable for onboard and rail transit.

EMC：CE & FCC Class B（EN61000-6-4/EN61000-6-2）， Meet the radiation requirements of industrial environments.

Power requirements: An IEC/UL certified LPS/SELV power supply must be used, with an output of 6-36VDC and a maximum altitude of 5000 meters.

California Proposition 65: Products containing lead, cadmium, and other substances should be recycled as WEEE when discarded.