PCIe x1 4-port RS232 serial card with TTL switching and wide OS compatibility.
When legacy equipment integration requires reliable serial connectivity in space-constrained industrial systems, standard adapters often lack flexibility. The LRUA9254-232 PCIe x1 4-port RS232 serial card solves this by combining compact design with versatile signal support.
Featuring a PCIe 1.1 x1 interface and XR17V354 controller, it delivers baud rates from 4.8bps to 115.2Kbps across four DB9 ports via HDB44 breakout cable. This enables seamless connection to PLCs and sensors without occupying multiple expansion slots. The first port supports TTL/RS232 switching, eliminating need for external converters in mixed-signal environments.
Ideal for factory automation and embedded systems, this adapter supports domestic CPUs like Feiteng and Kirin alongside Windows/Linux platforms. With ±8KV ESD protection and dual bracket options, it ensures reliable deployment in harsh industrial conditions where uptime is critical.
Expands system with 4 RS232 serial ports via single PCIe x1 slot using high-compatibility DB44 interface.
First serial port supports TTL/RS232 switching for flexible connection to diverse industrial devices.
Supports both 12V and 5V power supply standards ensuring compatibility with various industrial equipment.
Small PCB size with included low-profile bracket fits space-limited small PCs and embedded systems.
Compatible with Feiteng and Kirin CPUs plus major Linux/Windows OS for localized deployments.
±8KV contact discharge protection ensures reliable operation in electrically noisy industrial environments.
Complete technical details for integration and deployment planning.
| Controller Chip | XR17V354 |
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| Bus Type | PCIe 1.1 x1 |
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| Port Count | 4 |
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| Connector Type | 4*RS-232 (via HDB44) |
| Serial Standards | RS-232 |
| Baud Rate | 4.8bps ~ 115.2Kbps |
| Power Supply | PCIe |
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| Voltage Support | 12V and 5V |
| Max Power Consumption | 500mW |
| Feature Support | TTL/RS232 Switching (Port 1), Low Profile Bracket, Full Height Bracket, ESD Protection ±8KV |
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| Operating Temperature | 0℃ to 80℃ (32℉ to 176℉) |
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| Storage Temperature | -20℃ to 85℃ (-4℉ to 185℉) |
| Storage Humidity | Maximum: 90% non-condensing relative humidity at 35℃ |
| Certification | FCC, CE, RoHS |
| PCB Size | 68.9*100*1.6 mm |
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| Bracket Height | Low Profile & Full Height |
| Supported Operating Systems | Windows 7/8/8.1/10/11, Windows Server 2012/2016/2019/2022, Ubuntu 16.04.3/18.04.5/20.04.1/22.04.2, SUSE 12.5/15.4, RHEL/Centos 7.9/8.2/8.3/8.4, Deepin 20/20.6/20.9, CMIT-Windows 10, Galaxy Unicorn v10, YMOS, Zhongke Fangde server operating system |
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