pin assignment module bay

[manu]

I know, it's somewhere but I don't find the pin assignment in the module bay.
Does anybody know?
regards
manu

[Kilrah]

[pmullen503]

Pins 2 and 4 are ground on mine, connected by the same trace.

[ShowMaster]

Pins 2 and 4 are ground on mine, connected by the same trace.

c

You're correct for the Turnigy and FlySky series of radios.
JR needs +6V for their modules like 72 or 50 or 35 MHz.
FYI
The Frsky DJT module normally leaves those two pins unused/open so it can be used in any JR pinout tx.