(c) 2011 Kris Verlent
The SN3101 is a serial to (Modbus) TCP convertor.
You can easily connect  older instruments with RS232/RS422 or RS485 to your network.


Provides over IP access for industrial serial devices.

Software selectable RS-232/422/485 3-in-1 serial port

Built-in 15KV ESD serial port protection

Max. baud rate: 460 Kbps

Wide range of versatile serial operation modes - Console Management, Real COM, TCP Server, TCP Client, UDP, Modbus, Serial Tunnel and Virtual Modem

High security via 128-bit SSL encryption for serial data transmission

Redundancy support via multiple simultaneous Real COM, TCP Server, and TCP Client connections

64 Kbyte port buffer prevents data loss when the network is down

Real COM driver for Windows 2000/XP/2003/Vista

Fixed TTY driver for Linux

Modbus Ethernet-to-Serial support

Modem emulation enables existing modem-based applications to make connections over IP networks

Virtual Terminal support (VT320, VT52, VT100, VT220)

System configuration via Web Console (HTTP/HTTPS), Telnet/SSH Console and Windows utility

Backup/restore and firmware upgrading via Web Console(HTTP/HTTPS) and Windows utility

Easy-to-use Windows utility (2000/XP/2003/Vista) for auto discovery, multiple device setting and monitoring

Centralized external authentication support for RADIUS, LDAP(S), MS Active Directory

SNMP MIB II and RS-232 MIB for network management

SMTP and SNMP trap event notification

Choice of power input: AC-DC adapter or DC direct