Serial Device Servers
Serial device servers (SDSs) are hardware devices that connect traditional serial devices (such as RS-232, RS-422, and RS-485) to Ethernet networks, transparently converting serial protocols between them and TCP/IP, thereby expanding the remote monitoring and management capabilities of these devices. They utilize virtual serial port technology, allowing local devices to connect to the internet without modifying existing software, thus overcoming the limitations of physical cables.
1. What are the Working Principles of Serial Device Servers?
Serial device servers typically support multiple operating modes, including virtual serial port (VCOM) and TCP/UDP server/client. They also offer high compatibility (such as support for Windows and Linux) and redundant network interfaces to ensure reliable data transmission. For example, dual Ethernet port designs prevent single points of failure, while isolation technologies (such as 1500V optocoupler isolation) provide immunity to electromagnetic interference and high-voltage surges, making them suitable for harsh industrial environments.
2. What are the Features of Serial Device Servers?
Protocol Conversion Capabilities: They seamlessly convert legacy serial protocols to Ethernet protocols, supporting baud rates up to 921.6 kbps to meet real-time data acquisition needs.
Strong Scalability: Offers multi-port configurations (e.g., 1-64 serial ports), allowing a single port to be accessed by multiple hosts, enabling device cluster management.
Security: Built-in enterprise-grade protection, such as WPA2 encryption, SSH tunneling, and a firewall, ensures data transmission security.
3. What are the Application Scenarios of Serial Device Servers?
Serial device servers are widely used in the following application scenarios:
Industrial Automation: Connects to PLCs, sensors, or instruments for real-time monitoring of production line parameters (such as temperature and pressure), improving efficiency and quality control.
Smart Buildings and Homes: Integrates with access control, elevators, or smart metering systems for remote control and energy management.
Critical Infrastructure: Applications such as energy storage systems (BMS integration) and computer room dynamic and environmental monitoring ensure uninterrupted operation through redundant power supplies and a wide operating temperature range (-40°C to 70°C).
High-end products also support wireless networking (802.11b/g) and domestically produced platforms (such as the RK3588 processor), promoting edge computing and intelligent upgrades. During installation, you need to configure hardware connections and network parameters (such as IP address). It is not plug-and-play.