Telnet (Telecommunication Network) refers to a TCP/IP-based protocol used in computer networks that allows the user to connect to a remote computer using a Telnet application (console).
Telnet is the successor of terminals that were used to connect to a remote computer over a serial line. Telnet typically uses port 23. The main disadvantage of telnet is the lack of encryption; therefore, SSH protocol is nowadays used instead.
In the context of NETIO products
In the context of NETIO, Telnet refers to a TCP connection used to control the outputs. The NETIO implementation of Telnet builds on the KSHELL command set introduced by the Koukaam company in 2009. The NETIO implementation still maintains compatibility with this command set.
Protocol specifications and links
>> NETIO specification of the Telnet M2M protocol: Download page
>> AN10 Telnet control of electrical power sockets (M2M API – KSHELL)
