X22 is an industrial-grade expansion module specifically designed for the ARMxy series of ARM embedded industrial computers. This module features electrical isolation, overvoltage protection, ESD protection, fault protection, and overcurrent protection circuitry to ensure stability and reliability in complex industrial environments. The X22 offers two selectable RS485 or RS232 communication channels, along with two CAN bus interfaces, significantly expanding the I/O capabilities of the ARMxy series embedded computers.
X22’s two serial ports support baud rates of up to 10 Mbps and are compatible with both full-duplex and half-duplex communication modes.
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Name |
Parameter |
Description |
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Power Supply |
Operating Power |
Internal Voltage |
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Working Voltage |
12V-24V |
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Power Consumption |
0.256W |
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RS485/RS232 |
Channel |
2 Channels |
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Transmission Mode |
Optional: 2×RS232 or 2×RS485 |
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Maximum Baud Rate |
RS232: 115kbps RS485: 10Mbps |
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Data Bits |
RS232: 5-bit, 6-bit, 7-bit, 8-bit (configurable) RS485: 5-bit, 6-bit, 7-bit, 8-bit (configurable) |
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Stop Bits: |
RS232: 1-bit, 2-bit (configurable) RS485: 1-bit, 2-bit (configurable) |
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Parity |
RS232: Odd parity, Even parity, No parity (configurable) RS485: Odd parity, Even parity, No parity (configurable) |
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Flow Control |
RS232: Not supported RS485: Not supported |
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Impedance |
RS232: Input impedance 300 Ω, Output impedance 3 kΩ RS485: 120 Ω |
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Measured Distance and Operating Baud Rate |
RS232: 15 meters (baud rate ≤ 1200 bps) RS485: 200 meters (baud rate ≤ 115200 bps) |
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Supports Multi-Drop Communication |
RS232: Not supported RS485: Requires custom development |
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Communication Mode |
RS232: Full-duplex / Half-duplex / Simplex RS485: Unidirectional Half-duplex / Simplex |
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Data Transmission Mode |
RS232: Transmit and receive mode, Receive-only mode, Transmit-only mode RS485: Transmit and receive mode, Receive-only mode, Transmit-only mode |
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Logic Level |
RS232 |
Logic “1”: 1.5 V |
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Logic “0”: 2.4 V |
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RS485 |
Logic “1”: -3 V |
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Logic “0”: +3 V |
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Maximum Output Current per Channel |
250mA (at 26℃) |
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Isolation Protection |
2KVrms (built-in) |
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Communication Cable Requirements |
Shielded twisted pair cable |
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CAN |
Channel |
2 Channel |
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Transmission Mode |
CAN BUS |
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Maximum Baud Rate |
Nominal Bit Rate: 1000Kbps Data Bit Rate: 5000Kbps |
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Flow Control |
Not supported |
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Impedance |
45KΩ |
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Measured Distance and Operating Baud Rate |
200 meters (baud rate = 500 Kbps) |
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Multi-Node Communication |
Support |
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Maximum Output Current per Channel |
120mA (26℃) |
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Isolation Protection |
2KVrms (built-in) |
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Communication Cable Requirements |
Shielded twisted pair cable |
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Certifications |
EMC |
IEC 61000-4-2 (ESD) Level 3 |
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IEC 61000-4-4 (EFT) Level 3 |
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IEC 61000-4-5 (Surge) Level 3 |
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