The multiplexer exists in 2 versions. These versions have the
same functionality and only differ in size. The standard version
has an external size of 5.5cm x 7.5 cm x 3 cm. The bigger version,
referred to as Nmea4WifiX has an external size of 8 cm x 10 cm x 3
cm and uses 5mm screw terminal connectors instead of the 3.5mm
screw terminal connectors used in the standard version. In
this Help File we always refer to the standard version.