PCIe x1 expansion card with four RS232 serial ports and one parallel port for industrial control.
Industrial automation systems often require connecting legacy serial peripherals to modern servers lacking native COM ports. The LRUA9284-4S1P PCIe serial adapter solves this connectivity gap by adding four RS232 ports and one parallel interface to standard PCIe x1 slots.
Based on the CH384P controller, it delivers baud rates up to 115.2Kbps and parallel speeds of 1MB/s, ensuring reliable data transmission for sensors and printers. Selectable 5V/12V power per port via jumper eliminates compatibility issues with diverse industrial equipment, while built-in 8KV ESD protection safeguards against electrostatic damage in harsh environments.
Compatible with UOS, KOS, and Windows platforms, this card supports domestic CPU architectures like Phytium and Kirin. Its dual power input design ensures stable operation in security monitoring and retail settlement applications where downtime is not an option.
Provides four independent RS232 ports and one IEEE1284 LPT port for comprehensive legacy device connectivity.
Supports automatic switching between PCIe and external SATA power with selectable 5V/12V output per serial port.
Built-in electrostatic discharge circuit resists interference to ensure stability in industrial environments.
Supports Windows, Linux, UOS, and KOS operating systems across x86 and ARM platforms including Phytium and Kirin.
First serial port supports TTL level output for specific development, debugging, and equipment requirements.
Complete technical details for integration and deployment planning.
| Chipset | CH384P |
|---|
| Bus Type | PCIE2.0 X1 |
|---|---|
| Bracket Height | Low Profile & Full Height |
| Serial Ports | 4 DB9-pin RS232 |
|---|---|
| Parallel Port | 1 DB25-pin LPT |
| Serial Baud Rate | 1200bps ~ 115.2Kbps |
| Parallel Speed | Up to 1MB/s |
| Serial Standard | 16C550 |
| Parallel Protocol | IEEE1284 |
| Power Input | PCIe / 15PIN SATA |
|---|---|
| Serial Port Voltage | Selectable 5V / 12V via Jumper |
| First Serial Port Feature | TTL Level Output Support |
| ESD Protection | Contact Discharge ±8KV |
|---|---|
| Operating Temperature | 0℃ to 55℃ (32℉ to 131℉) |
| Storage Temperature | -20℃ to 85℃ (-4℉ to 185℉) |
| Storage Humidity | Maximum 90% non-condensing relative humidity at 35℃ |
| Certification | FCC, CE, RoHS |
| PCB Size | 100 x 68.9 x 1.6 mm |
|---|---|
| Package Size | 179 x 150 x 30 mm |
| Wire Length | 48 cm |
| Windows | Windows 7/8/8.1/10/11, Server 2012/2016/2019/2022 |
|---|---|
| Linux | RHEL/Centos 7.9/8.2/8.3, Ubuntu 16.04.3/18.04.5 |
| Domestic OS | UOS1060 (X86_64/ARM), KOS2303 (X86_64/ARM) |
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