Advanced TCP IP data logger supports unlimited number of both client and server TCP/IP connections that can be used to log data from one or more terminal servers to disk file. RS232 network monitoring software is capable of logging data received via various connections to same log file. Serial transmission controller manager logs data received from RS232 or RS485 devices connected to TCP/IP network via serial interface terminal servers. A Terminal Server is a device that allows RS232 or RS485 serial devices to be connected to an Ethernet network. TCP/IP network management software logs data received from any kind of equipment that has TCP IP address such as Cisco router. RS485 devices data logger can be used for recording data received from remote serial ports exactly as serial file application does with local ports.