Connect an Additional VVX EM50 Expansion Module

You can connect up to two VVX EM50 expansion modules to a VVX 450 business IP phone.

Note: When you connect expansion modules to a VVX 450 phone, you can connect additional USB devices to the rear port of the phone and the side port on the second connected expansion module. The side USB port on the expansion module can support low-powered devices, such as headsets, USB flash drives, or a smartphone to charge the phone.

Procedure

  1. Power off the VVX 450 business IP phone.
  2. Lay the VVX 450 phone with the connected expansion module face-down on the table.
  3. Remove the screw from the left side of the connected expansion module, as shown.
    Illustration of using a screwdriver to remove a screw from the expansion module connected to the phone.
  4. Insert the USB plug on the second VVX EM50 expansion module into the side USB port on the first connected expansion module.
  5. Using the screw you removed from the first expansion module, use a screwdriver and the screw to secure the second expansion module to the first, as shown.
    Illustration of a screwdriver being used to secure the second expansion module to the first connected expansion module.
    The LED lights on the module's line keys flash red and green as the module starts up.