How to Use VNC to Remote Control a Test Set?

Standard VNC applications can be used to control a remote test set, by entering the test set's IP address

Many VeEX test sets support remote control functionality, via Virtual Network Computing (VNC) screen & mouse mirroring, using commercially available VNC client applications. However, we strongly recommend the use of the test set's built-in Web Remote function, since it offers an extended set of features and capabilities (e.g., Remote Control, Screen Capture, File Download, PDF, Software Upgrade, etc.)

Enabling the VNC Server Functionality

Test sets that support Remote Control offer the VNC Server function by default, which is ready to be used as soon as the test set is connected to a LAN or WLAN/Wi-Fi and gets a valid IP address. However, we give users the option to control such functionality, by going to >Utilities >Settings >More >Remote Access and Enable or Disable the VNC Service. (The menu structure may vary from product to product.)

Connecting to a Remote Test Set using a VNC Client

If VNC Service is enabled, users can download and install their preferred, trusted or company recommended VNC Viewer application (e.g., VNC Connect, realVNC, etc.) on their Win/MAC/Linux PC, tablet or smartphone.

• Launch the VNC application
• Create a New Connection
• Enter the test set's IP address (the TCP port is typically set to 5900). The test set's current management IP address is normally displayed on the lower-left corner of the screen.
• If you plan to use the connection regularly, the VNC application may allow to name and save the connection settings.
• Press the connect button. If you are initially prompted that the connection is not be encrypted, select to continue.

• Enter the VNC Password. The default (Super User) password is pass1, however we highly encourage users to change the password. This password allows full control of the test set. There is a secondary VNC Regular User Password, pass2, that allows users to view the content of the test set screen, however, it doesn't allow control of the test set.
• The test set's graphical user interface (GUI) should be mirrored on the VNC client app. 
• Some VNC clients offer a selection between Mouse, Touch Screen or Track Pad emulation modes. Select Touch Screen or Track Pad mode. Use the mouse (Win/Mac/Linux) or tap on the screen (iOS/Android tablets or smartphones) to navigate through the user interface as usual.

Note: If the computing device running the VNC Client is not on the same LAN where the test set is, users may need to use VPN access to gain connectivity to the target private IP address. We also recommend the use of VeEX's EZ-Remote cloud service (if supported by the test set), which doesn't require a VPN connection.

There may be certain limitations with the use of VNC, since it only shares the screen and doesn't allow access to certain functions offered by physical buttons on the test set. VNC clients may not allow users to take screenshots, and they don't allow the download of test results to the PC or tablet. The use of the built-in Web Remote function is considered a better alternative.

Certain multi-user test sets use different TCP ports, in the 590x and/or 690x ranges, for each of the independent GUIs served to each of the remote users. For those cases, only use the Web Remote functionality.