User's Manual

BLE Module Placement Tips

1) To enable DTM mode for R/F Test like BLE fix frequency Test, FCC test…etc.,

RXD and TXD pad require to connect to RF Equipment though RS232.

RXD and TXD pad located on the back side of the module.

Reserve hole at Main PCB for soldering RXD & TXD pads for RF Equipment .

2) Module Soldering on Main PCB, ensure antenna overlap area do NOT cover Main

PCB Wiring or Ground area, it’s suggested to reserve Min. 5mm apart from

Module Antenna.

3) Connect All Module Ground Pads to main PCB Ground to obtain better

performance.

4) BLE Module (Antenna) placement inside the product, it need to avoid to get close

to Metal Part, LCD, Battery…etc. since it’s affect the RF performance.

Min. 5mm

Main PCB Wiring / GND

8 End