Here’s a sample session using the freeware FTP client FileZilla:
VNC Server Port
The CFSound-IV provides limited Virtual Network Computing (VNC) server capability. VNC is a
graphical desktop sharing system that uses the Remote Frame Buffer (RFB) protocol to remotely control
another computer. It transmits the keyboard and mouse events from the client to the server, relaying the
graphical screen updates from the server back to the client over a network connection.
The CFSound-IV implements a ‘virtual display’ – screens can be displayed and interacted with by VNC
connection only. In CFSound Mode the configuration screen is displayed. In Basic mode graphic commands
can be used to display on and interact with this virtual screen which can only be observed via a VNC
connection.
If the configured VNC Server Port is non-zero, RFB protocol messages will be exchanged over that port
to establish and update a VNC session between VNC client software on a PC and the CFSound acting as a
VNC server.
No passwords or authentication are supported. The server reported protocol is RFB 003.003.
Supported graphical update formats are 16-bit R5G6B5 or 32-bit R8G8B8A8. This is negotiated during
the connection phase.
Received mouse events are translated are translated to virtual touchscreen events; Press, Move, Release.
Received keyboard events for keys that have an ASCII code equivalent including Backspace, Tab,
Escape and Enter are processed upon key down only – key up and all other keys are ignored.
Here’s an example using the free program Tight VNC to connect to the CFSound:
