User's Manual

LTE Module Series
EC25-V User Manual
EC25-V_User_Manual Confidential / Released 14 /
69
3 Application Interface
3.1. General Description
EC25 is equipped with an 80-pin SMT pad plus 64-pin ground pads and reserved pads that can be
connected to cellular application platform. Sub-interfaces included in these pads are described in detail in
the following chapters:
 Power supply
 USIM interface
 USB interface
 UART interface
 PCM interface
 ADC interface
 Status indication
3.2. Pin Assignment
The following figure shows the pin assignment of the EC25 module.