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SH-GC111| Industrial Serial Device Server| 1x10/100M RJ45 port, 1x RS232/485/422 port
< Supports 3 serical signal types: RS232, RS485, and RS232/RS485/RS422
< Configurable serial baud rate from 600bps to 230.4Kbps
< Selectable operating modes:TCP Client, TCP Server, UDP Client, UDP Server, HTTPD Client, MQTT
< Supports Modbus gateway functionality for easy conversion between ModbusRTU and ModbusTCP protocols.
< Supports multi-master Modbus command polling for mullisecond-level data acquisition.
< Supports MQTT functionality for easy conversion between ModbusRTU adn ModbusTCP protocols
< Supports multi-master Modbus command polling for millisecond-level data acquisition
< Supports MQTT functionality for connecting to standard MQTT protocol cloud platforms, enabling transparent transmission
< Supports customized quick setup for connecting to Alibaba CLoud and other cloud platforms for data transparent transmission.
< TCP Server supports 2 connections, displays connceted IP addresses, and calculates send/receive data perconnection.
< In TCP Server mode, configurable behavior for new connections when the maxium connection limit is reached
< Supports TCP client short connection mode with customizable disconnect time
< Configurable serial baud rate from 600bps to 230.4Kbps
< Selectable operating modes:TCP Client, TCP Server, UDP Client, UDP Server, HTTPD Client, MQTT
< Supports Modbus gateway functionality for easy conversion between ModbusRTU and ModbusTCP protocols.
< Supports multi-master Modbus command polling for mullisecond-level data acquisition.
< Supports MQTT functionality for easy conversion between ModbusRTU adn ModbusTCP protocols
< Supports multi-master Modbus command polling for millisecond-level data acquisition
< Supports MQTT functionality for connecting to standard MQTT protocol cloud platforms, enabling transparent transmission
< Supports customized quick setup for connecting to Alibaba CLoud and other cloud platforms for data transparent transmission.
< TCP Server supports 2 connections, displays connceted IP addresses, and calculates send/receive data perconnection.
< In TCP Server mode, configurable behavior for new connections when the maxium connection limit is reached
< Supports TCP client short connection mode with customizable disconnect time
More Details
Technical Parameters
| Serial Port | |
|---|---|
| Serial Signal | SH-GC111A: 1 × RS485 (2-pin terminal block) SH-GC111C: 1 × RS232 (DB9 male port) SH-GC111D: 1 × RS232/485/422 (DB9 male port + 4-pin terminal block) |
| Number of Ports | 1 |
| Baud Rate | 600bps ~ 230400bps |
| Parity Bit | None / Even / Odd / Space / Mark |
| Data Bits | 5 / 6 / 7 / 8 |
| Stop Bits | 1, 2 |
| Pin Assignment | SH-GC111A: RS485 (A/B) SH-GC111C: RS232 (DB9 male pinout) SH-GC111D: RS485 (A/B), RS232 (DB9 male pinout), RS422 (Tx+/Tx-/Rx+/Rx-) |
| Ethernet Port | |
| Number of Ports | 1 × RJ45, Fast Ethernet (100M) |
| Port Type | Auto-MDIX (crossover/straight-through adaptive) |
| Port Protection | 1.5KV isolation protection |
| Power | |
| Connector Type | Standard 5.5×2.1mm DC jack OR 2-pin terminal block; with reverse polarity protection |
| Operating Voltage | 9V ~ 36V DC |
| Operating Current | 18mA @ 12V |
| Environment | |
| Operating Temperature | -25℃ ~ +75℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Relative Humidity | 5% ~ 95% RH (non-condensing) |
| Atmospheric Pressure | 70 ~ 106 kPa |
| Mechanical Structure | |
| Enclosure Material | 1.0mm metal |
| Dimensions (L×W×H) | 98.0 × 86.0 × 25.0 mm (including mounting ears and terminals) (Actual size prevails) |
| Mounting Method | Desktop / Wall-mount / DIN-rail mounting |
| Transmission Modes | |
| TCP/UDP Modes | TCP Server / TCP Client / UDP Server / UDP Client / UDP Multicast |
| HTTP Mode | HTTPD Client |
| MQTT Mode | Supported |
| Modbus Mode | ModbusRTU to TCP protocol conversion / Modbus multi-master polling |
| Short Connection | Supported |
Dimension Diagram
Ordering Guide
| Popular Models* | Specification Description |
|---|---|
| SH-GC111A | Serial-to-Ethernet server, 1 Fast Ethernet port + 1 RS485 port (2-pin terminal block), operating temperature -25℃ to +75℃. |
| SH-GC111C | Serial-to-Ethernet server, 1 Fast Ethernet port + 1 RS232 port (DB9 male port), operating temperature -25℃ to +75℃. |
| SH-GC111D | Serial-to-Ethernet server, 1 Fast Ethernet port + 1 RS232/485/422 port (DB9 male port + 4-pin terminal block), operating temperature -25℃ to +75℃. |





