Please find attached a nice example schematic with power supply and little ARM controller chip.

The following feature are supported by PLS62/3-demo:

modules:

• PHS8, PLS8, PLS62, PLS63, PDS8, AGS2E 156 pad footprint

Power Supply

• External power plug 8-30V
• 5V USB power supply
• LiPo 4.2v battery chargeable from USB and power plug

RS232:

• 115.2kbit/sec COM port to STM32F070 controller and module

USB

• virtual USB-COM port (STM32F070 controller)      or
• direct module access to PHS8, PLS8, PLS62, PDS8

RF

• on board GSM/HSDPA/LTE Taoglas ceramic antenna
• 2 x SMA connector for GSM / LTE-diversity
• SMA connector for GPS antenna with feeding circuit (PHS8, PLS8 only)

Audio

• analogue audio with iPhone plug (PxSxxA only)
• DAI/PCM connector

LED’s for

• Module on/off
• Call activity, (SYNC-LED)
• RING (red), CTS
• SD access (red) (controller GPIO)
• …

1 line pin header for some remaining controller GPIO pins, GND, + 3.3V, + 4.8V

• 2 x Inputs with simple ESD protection

Micro SD-card access for configuration and log data