Getting Started :: System Requirements
If the application needs to directly control (at run-time) the baud rate, parity, framing and/or receive real-time status signals for the serial ports on the server:
Use a serial server that supports the COM Port Control protocol.
Note: If serial port settings don't have to be changed on-the-fly by the application, they can usually be configured on the server instead. This may enable the use of a server that does not support the COM Port Control protocol.
If the network connection between your application and the server is untrusted (e.g., the Internet):
Use a server that supports SSL/TLS encryption.
Obtain and use a license key that enables the Encryption option.
For each virtual COM port use by this application, enable the option Use Encryption in the redirector. details
Tactical Software Technical Notes