SeaTalk to SeaTalkng converter setup

[Petersailor]

Thanks.
I just wonder have I shall connect the second stng converter to be able to split up the seatalk devices, today all the seatalk 1 devices are connected together and the SeaTalk1 to SeaTalkng converter cable is connected from one of the ST60 instruments to the converter,
and from the MFD e7 I have a spur cable connected to the spur port of a SeaTalkng T-piece. I have removed one of the blue SeaTalkng Termination plugs from the SeaTalk to SeaTalkng Converter and connected this plug to one of the end blue backbone ports of the SeaTalkng T-piece, and
connected a SeaTalkng Backbone Cable from the unoccupied blue SeaTalkng backbone port of the SeaTalk to SeaTalkng Converter to the unoccupied blue backbone port of the SeaTalkng T-Piece.

Also on the attached diagram it is more than five Seatalk devices connected to one stng converter..?