The result is a connection that is quiet enough for analog signals. In fact, 3M also quotes analog specs, such as VSWR and insertion loss, for the connectors. The company has extensive Spice models that it supplies to engineers or uses to perform simulations for customers. However, stripping and attaching the delicate miniature coaxial cable is a specialized art employing exotic machinery such as laser wire strippers. Instead of using shielded connector sockets and coaxial cable, grounding signal pins is an alternative for reducing crosstalk.
Black squares indicate contacts assigned to ground.
All other lines terminate in 65-ohm. In this example, adding grounds dramatically lowers overall crosstalk by reducing both the number of signal pins that pick up crosstalk and the level of the crosstalk. The starting point for simulating connectors is a good Spice model. But there are Spice models, and then there are Spice models. For some applications, you can model a connector as an array of simple capacitors that slightly round off signal edges.