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Selection guide
Engineered for extreme high-density data aggregation, this 1U rack-mounted 32-port serial server utilizes an advanced ARM9 processor to consolidate massive RS232/485/422 device networks into core backbone infrastructure, providing integrated Modbus/Telnet conversion and robust 4-port switch functionality for enterprise data centers.













| Product model | 16CH-RS232/485/422-ETH | 32CH-RS232/485/422-ETH | |
| Product Type | Serial server, Modbus Gateway, MQTT Gateway | ||
| Main Function | Bi-directional transparent data transmission between RS232/485/422 and Ethernet | ||
| Interface | 24 RJ45: 4 Ethernet port, 16 Serial ports, 4 for reservation. | 36pcs of RJ45:includes 4 LAN, 32 serial ports. | |
| Power supply | 220V AC | ||
| Consumption | 10W | ||
| Ethernet | 4 10M/100M, switch structure, connect anyone can work | 4pcs of 10M/100M,Switch structure,random connectio | |
| Serial port | 16 serial ports, each include: RS485/RS232/RS422 (RS422 needs jumper setting) | 32 serial ports, each including: RS232/RS485/RS422 (RS422 requires jumper) | |
| Baud rate | 1200~460800bps | 1200~921600bps | |
| Data bit | 5~9 | ||
| Parity bit | None, Odd check, even check, Mark, Space | ||
| Flow control | RTS/CTS,DTR/DCR, NONE | ||
| Protocol | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS | TCP、UDP、HTTP、MODBUS TCP、MQTT、JSON、DHCP、DNS | |
| Configuration | VirCom, WEB browser, device management library | ||
| Communication method: | Socket, Virtual serial , device management library | ||
| Operating mode | TCP server, TCP client, UDP, Real Com Driver | ||
| Operating temperature | -40~85℃ | ||
| Storage temperature | -65~165℃ | ||
| Humidity range | 5~95%RH | ||
| Dimensions | L x W x H =48cm×18cm×4.4cm | L x W x H =48cm×18cm×4.4cm | |
32CH-RS232/485/422-ETH Serial port server is a standard 1U rack-mounted 32 serial port protocol converter between RS232/485/422 and TCP/IP. 32CH-RS232/485/422-ETH supports 32 RS232 serial ports and 32 RS485/RS422 serial ports (RS422 require customization before ordering), and RS232 supports flow control. Connected to the 32CH-RS232/485/422-ETH through one network cable, 32 serial ports can work in full duplex at the same time. Each serial port can be used as TCP server, TCP client, UDP, and UDP multicast. Supports four network ports with the switch function.
32CH-RS232/485/422-ETH uses one IP address for every 8 serial ports, with different ports distinguished by their port numbers. It also supports 8 IP addresses for 8 serial ports, all using the same port number, differentiated by their IP addresses. A total of 4 IP addresses are required for 32 ports. 32CH-RS232/485/422-ETH features Modbus TCP to Modbus RTU and serial to Telnet protocol conversion.
32CH-RS232/485/422-ETH uses ARM9 processing chip, which can support high-speed data transmission of 921.6Kbps without packet loss.