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Rack-mounted 32 channel Serial Server (with WEB and SNMP) FCT-081205

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This industrial rail-type serial port server is a serial port networking server that allows serial port devices to immediately have networking capabilities. It can centrally manage scattered serial devices, hosts, etc. through the network. This product supports 32 channels of RS-232/RS-422/RS-485 to 2 channels of Gigabit Ethernet ports. One of the Ethernet ports provides 100/1000M adaptive optical Ethernet interface to meet dual IP and dual MAC addresses/multiple networks. For management or network backup needs, rack-mounted installation is adopted.

The serial port server supports a variety of network protocols, such as TCP, UDP, ARP, ICMP, HTTP, DNS, DHCP, SNMP, Telnet, SSH, MQTT and other protocols; it has complete management functions and supports access control, quick configuration, online upgrade, etc.; Each serial port supports 4 TCP or UDP session connections, supports Modbus TCP, TCP Server, TCP Server, TCP Client, UDP Server, UDP Client, Modbus to MQTT and other working modes; supports WEB access mode. In addition, the provided management and configuration tool based on the Windows platform enables serial devices to be connected to the Internet immediately through simple settings. The network management system has a friendly interface design, simple and convenient operation, and can give you a good user experience.

The hardware adopts a fanless, low-power consumption, wide-temperature and wide-voltage design. It has passed strict testing in line with industry standards and can adapt to industrial field environments with strict EMC requirements. It can be widely used in PLC control and management, building automation, and healthcare automation. systems, measuring instruments and environmental power monitoring systems, etc.


Using dual-core Cortex-A35+Cortex-M4 heterogeneous processor, running Linux OS Openwrt system;

Support OLED display to display IP address and serial port type

Supports 2*10/100/1000M adaptive electrical Ethernet interfaces, one of which provides 100/1000M adaptive optical interface, dual IP and dual MAC addresses to meet the needs of multiple network management or network backup;

Ethernet supports 10/100/1000Base-T adaptive Ethernet interface; supports automatic negotiation (Auto-Nego Full&half duplex) and automatic cross-line detection (MDI/MDIX);

The serial port supports 300bps-150000bps line speed non-blocking communication;

The serial data interface has two modes:

   Each channel provides one of three interfaces: RS-232/RS-422/RS-485, which can be configured at the factory;

   Each channel provides three interfaces: RS-232/RS-422/RS-485, and different interface modes can be set by dialing on site;

Supports Modbus TCP, TCP Server, TCP Client, UDP Server, UDP Client, and other working modes;

Complete the transparent conversion from Modbus-RTU to Modbus-TCP and realize reading serial device data through the network;

Supports SSL security protocol for serial port data encrypted transmission;

Support MQTT multi-topic subscription and publishing functions;

Supports MQTT transparent transmission and Modbus to JSON data packet functions, and supports parsing server-delivered JSON and scheduled reporting functions respectively;

Supports MQTT protocol docking with multiple cloud platforms such as Huawei Cloud, Alibaba Cloud, and Mobile Cloud;

Supports serial port status and serial port parameter monitoring, and the communication status is clear at a glance;

Supports communication through gateways and routes; supports virtual serial port driver access mode and automatic recovery of connection functions after network interruption;

Flexible serial port data framing settings to meet various subpackaging needs of users;

Supports standard TCP/IP SOCKET application access. TCP supports multiple connections, allowing up to 4 users to monitor or manage serial devices at the same time;

Supports single-machine or multi-machine communication in UDP mode, allowing multiple users to monitor or manage serial devices at the same time;

Supports various configuration forms such as Windows configuration tools, SSH, Telnet and WEB, and supports SNMP network management;

Support local and remote system firmware upgrade;

Multiple power supply modes are available: AC220V, DC-48V/DC24V, etc.; supports dual power supply modes such as AC+DC; AC+AC; DC+DC;


● 10/100/1000M Ethernet Interface

Protocol: Compliant with IEEE 802.3ab, IEEE 802.3z

Rate: 10/100 adaptive m full/half duplex adaptive

MAC address table: 4096 MAC addresses can be learned

Physical interface: RJ45 socket, supports Auto-MDIX


● Optic Fiber Ethernet                           

Optical port: 1

Optical fiber: single fiber and double fiber

Optical fiber interface: SC/FC/ST/LC (SFP) optional

Wavelength: 850nm/1310nm multimode; 1310nm/1550nm single mode

Transmission distance without relay: 0~80Km

Typical transmit power: single mode 100uw — 0.93mw


● Serial Interface


EIA/TIA-232 RS-232 (ITU-T V.28)

EIA/TIA-422 RS-422 (ITU-T V.11)

 EIA/TIA-485 RS-485 (ISO/IEC8284)

 Serial interface:

 RS-422: TxD+ TxD- RxD+ RxD- GND

RS-485 4 wires: TxD+ TxD- RxD+ RxD- GND

RS-485 2 wires: A (for TX+) B (for TX-) GND



● Environmental Indicator

Working temperature:-40℃—+85℃

Storage temperature:-40℃—+85℃

Working humidity:0%—95%(no condensation)

MTBF:   >100,000 hours


Function description

Transmitting 32 channels of RS232/422/485 serial over Ethernet, 1U rack-mounted

Service port description

32 RS232/422/485 serial interfaces; 2 Gigabit Ethernet electrical ports, 1 100/Gigabit Ethernet optical port, one Console interface, and one USB C port


AC220V, DC-48V, DC 24V support dual power supply backup





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