Serial Device Servers

What Serial Converters and IoT Devices Are Used For

Teams buy Sollae serial converters and connectivity devices to reduce on-site visits and bring legacy serial equipment into modern IP-based workflows. Typical applications include:

• Remote device management for routers, switches, firewalls, PDUs, and servers through RS232 console ports
• Serial equipment modernization — meters, controllers, and sensors connected to SCADA, dashboards, and monitoring platforms over Ethernet
• Remote troubleshooting when on-site visits are costly or slow — branches, field cabinets, industrial sites
• Multi-site standardization where one consistent connectivity approach reduces spares cost and support overhead

Serial Device Server Types: Console Server vs Serial Ethernet vs Serial WLAN

Three product categories cover the main deployment patterns for serial device servers and related IoT devices. Choose based on what you are connecting and whether Ethernet or Wi-Fi is available on site:

Serial to TCP and Serial to UDP: Understanding Connection Modes for Serial Converters

Choosing the correct operating mode on a serial converter determines how your software and devices communicate. Sollae IoT devices support the modes used most by system integrators and IT/OT teams:

• TCP Server: your application initiates the connection to the device server — the most common mode for stable, persistent links
• TCP Client: the device server connects outbound to your host — useful when the device sits behind NAT or a firewall
• UDP mode: lightweight datagrams for telemetry and broadcast-style data flows
• Serial tunneling: pair two device servers to extend a serial link transparently over Ethernet or WAN
• Virtual COM / RFC2217: expose a remote serial port as a local COM port for legacy Windows software that expects a hardware port

Key Features Across Sollae Serial Device Servers and IoT Devices

Sollae serial device servers are built for real deployments — industrial cabinets, remote branches, and field sites — not just lab conditions. Across the range:

• Industrial temperature ranges (up to −40 °C to +85 °C on key models) for cabinets and outdoor enclosures
• Protection circuits — over-voltage, reverse-voltage, surge, and opto-isolation on select models
• SSL/TLS and MAC/IP filtering on supported units for secure remote access beyond a protected LAN
• IPv4/IPv6 dual stack throughout the range for compatibility with modern network infrastructure
• Soft AP commissioning on WLAN models — configure on-site without a pre-existing Wi-Fi access point
• Virtual COM driver (ezVSP) for seamless integration with COM-port-based Windows applications

Serial Device Server Buyer Checklist

1. What are you connecting? RS232/RS422/RS485 serial instruments → serial ethernet or WLAN device server. Network console ports → console server.
2. Ethernet or Wi-Fi? Fixed infrastructure with cabling available → wired ethernet device server. Cabling is expensive, impractical, or temporary → serial WLAN device server.
3. Connection mode: TCP Server, TCP Client, UDP, serial tunneling, or Virtual COM — choose based on how your software or host initiates the connection.
4. Security requirements: if the device is reachable beyond a protected LAN, prioritize SSL/TLS and access filtering on the chosen model.
5. Port count and scale: 1-port models for single-device retrofits, 2-port or 4-port for cabinet consolidation, 8–32 port console servers for rack-level management.