RG255C-GL M.2: names for antenna connectors?

Hi,
can you please provide a picture with names for antenna connectors? Which one is 5G Main? And GNSS or 5G secondary?
There are no names printed on board and Quectel_RG255C_Series_M.2_5G_Module_Specification_V1.4.pdf provides also no information.
Thank you

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