1.4.4 Communication ports

The following ports are used for communication with the GT7 terminal.
The response ports are chosen randomly.

Port type	Port number	Incoming/Outgoing	Function

Port type	Port number	Incoming/Outgoing	Function
TCP	80 (HTTP) or 443 (https)	Outgoing	For G7 Connect
TCP	80 (HTTP) or 443 (https)	Incoming	For the web interface
UDP	123	Outgoing	Required for the time (NTP server)
UDP	8216	Incoming	For GAT DeviceFinder (optional)

Hardware