[werk_ag]

The position of the RTC module on the board remains de same at least since RX v.4xx boards.
Take the picture bellow as a reference and note that to connect the RTC to the RX pcb, you must use the 4 unused holes on the RTC module. Solder 4 pins on it and use them to make the connection to the RX board.
The pins that usually come with the RTC module will stay upside (you can dissolder them for aestetic reasons).