Sim_Det Pin - Huawei ME936 Hardware Manual

HUAWEI ME936 LTE M.2 Module
Hardware Guide
Figure 3-21 Connections of the BodySAR_N pin
It is not recommended to add a diode on the BodySAR_N pin outside the ME936
module.

3.4.9 SIM_DET Pin

ME936 supports USIM Hot Swap function.
ME936 provides an input pin (SIM_DET) to detect whether the USIM card is present
or not. This pin is an edge trigger pin.
Table 3-9 Function of the SIM_DET pin
No.
1
2
Issue 03 (2017-12-11)
SIM_DET Function
Rising edge USIM Card insertion.
If the USIM Card is present, SIM_DET pin should be high.
Falling edge USIM Card removal.
If the USIM Card is absent, SIM_DET pin should be low.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
34