User's Manual

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LTE Module
EC25-A User Manual
EC25-A_User_Manual Confidential / Released 14 / 7
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.