ZLAN5443D 4 port Isolating RS485 to Ethernet TCP IP Converter Modbus RTU TCP Gateway Serial device server Isolation

$66.00 - $104.00
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Company Information

Shanghai ZLAN Information Technology Co., Ltd.

CN Trading Company
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US$ 4,000+
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Quick Details

Payment Terms: L/C,T/T,Western Union
Supply Ability: 3000 Set/Sets per Month
Brand Name: ZLAN
Function: Serial to Ethernet
Warranty: 3 Years
Chipset: ZLAN1003
Place of Origin: Shanghai China
Product name: multi serial device server
Serial Port: RS485
Model Number: ZLAN5443D
Application: Serial to Ethernet
Port Number: 4
Power Supply: 9~24V
Packaging Detail: standard package

ZLAN5443D 4 port Isolating RS485 to Ethernet TCP IP Converter Modbus RTU TCP Gateway Serial device server Isolation

Product Description


ZLAN5443D is a 4-port serial device server /Modbus gateway with photocoupler isolation in RS485 of installation type, which can effectively isolate the influence of interference on the work of the device on the RS485 bus and ensure the stability of the device. Suitable for RS485 bus interference in the environment. Built-in power supply lightning protection, 9 ~ 24V wide voltage, terminal power access, with shell node line.

ZLAN5443D adopts guide rail type design, with guide rail clip on the back. At the same time, it also has two mounting lugs above, which can be installed horizontally or vertically, and are suitable for mounting on the back board or desktop respectively.





Hardware Features

ZLAN5443D has the following features:

1)     Three installation options rail type installation, back plate lug, desktop lug fixed. Especially suitable for industrial guide rail installation, because the transverse width can save installation space, installation and disassembly more convenient.

2)     RS485 serial optical coupler isolation, isolation voltage of 1500V. Suitable for the common serial port server cannot work properly in the strong interference environment. Effectively isolate the ground circuit between the serial device and the serial server.

3)     Built-in power supply lightning protection: built-in varistor and ceramic discharge tube can effectively protect the internal circuit of the serial port server in case of power surge.

4)     Industrial power supply mode: terminal connection mode, convenient for industrial occasions. Can 9 ~ 24V wide voltage supply. Ground wire with housing, effective diversion interference and surge.

5)     Dual network port design, support serial server cascade, extended to 8 serial port, 12 serial port, 16 serial port.

6)     Abundant panel indicator lights are convenient for debugging: in terms of connection, there are not only 100M_LINK lights indicating whether the network cable is connected, but also LINK lights indicating the establishment of TCP connection. In terms of data indicators, there are independent indicators of "serial port to network port" and "network port to serial port". Convenient field debugging.

Software Functions

1)     4 channel serial port can be configured for different baud rate, independent work, without interference.

2)     Support TCP server, TCP client, UDP mode, UDP multicast. Supports TCP server side functions while being a TCP client. Support 30 TCP connections as a TCP server and 7 destination IP as a TCP client.

3)     Baud rate support 1200 ~ 115200bps, data bit support 5 ~ 9 bits, check bit can be no check, odd check, even check, mark, space these five ways.

4)     Support the function of sending MAC address on the device connection to facilitate the cloud management of the device.

5)     Provide the secondary development kit DLL development library for searching and configuring devices on the computer.

6)     Support Web browser configuration, support DHCP dynamic access IP, DNS protocol connection domain name server address.

7)     Support cloud remote search device, configuration device parameters, device program upgrade.

8)     Support remote viewing of TCP connection status, serial data sending and receiving status of the device through software. The virtual serial port supports data monitoring.

Advanced software features

4 in 5443D supports advanced soft functions, including:

1)     Support Modbus gateway function, support Modbus RTU to Modbus TCP. It can support the storage Modbus, which can automatically collect device data and store it. Non-storage Modbus gateways are also supported.

2)     Support for multi-host function: in the Q&A query mode, support network port allows multiple computers to access the same serial device at the same time.

3)     Support for customized heartbeat package and registration package functions: it is convenient to communicate with the cloud and identify devices.

4)     Support TCP to establish connection need password verification function, ensure connection security.

5)     Support for "transcoding" function, which can achieve the translation of specific device protocol, so that different devices docking unified software platform.

6)     Support HTTP data submission and sending function. The cloud can directly use HTTP GET instruction to interact with the serial data of the device.


Technical Parameters




Power Supply:



L x W x H = 150mm×105mm×41mm (the shell size, not including the interfaces)

Communicate Interface


10M/100M, 2KV surge protection


RS485×4:485A, 485B, GND

Serial Parameters

Baud rate:



None, Odd, Even, Mark, Space

Data size:


Flow control:

Software flow control XON/XOFF, NONE




Setting method :

ZLVirCom, WEB browser, device management library

Communication method:

TCP/IP directly communicate, Virtual serial

Work Mode

TCP server, TCP client (TCP servers also coexist), UDP, UDP multicast



9~24V DC, 6W



Running temperature:


Storage temp:













Contact Info.