7.1 Troubleshooting

For the most frequently asked questions refer to faq.2n.cz.


How to upgrade 2N® LiftNet?

  1. Connect the central unit (CU) to a PC via USB.
  2. Run 2N® LiftManager – Service Tools.
  3. Select the connected CU.
  4. Go to the Device menu and select Perform device upgrade.
  5. Select the latest firmware version, your language and whether you want to Preserve or Reset current configuration.
  6. Wait until the upgrade finishes. Then you can upgrade all the connected audio units as well. NOTE: The CU also upgrades all audio units after boot if parameter 998 is set to 1.


How to set up 2N® LiftNet?

There are three possibilities how to set 2N® LiftNet:

  1. For remote programming you can use the telephone line. 2N® LiftNet will guide you by a voice navigation menu.
  2. For local programming, use the machine room unit and the phone connected to it. 2N® LiftNet will guide you by a voice navigation menu.
  3. For PC based programming use the USB interface and 2N® LiftManager – Service Tools.


How to upload user recorded voice messages?

  1. Connect the central unit (CU) to a PC via USB.
  2. Run 2N® LiftManager – Service Tools.
  3. Go to the Device menu and select User message upload.
  4. Use the Browse button to select files with the recorded messages. NOTE: The file format must be wav, PCM, 8 bit, mono, 8 kHz.
  5. After selecting all the message files, click on the Upload into device button.