The product page of Function Extension Kits "WV-Q120A" from the Panasonic Security System. You can download features, manuals and firmware, specification sheet and more for WV-Q120A here.
WV-Q120A Key Feature - Panasonic security system - Products
This unit is an adapter box designed to mount only the network cameras.
･ This unit can be installed on an junction box (locally procured) mounted on a wall or a wall having a hole through which the cable passes. This unit can also be connected with the open piping.