Huawei ME909s-821 - Page 26

HUAWEI 30 mm × 30 mm LGA Module
Hardware Migration Guide
LGA Interface Differences
Issue 08 (2016-12-12)
HUAWEI Proprietary and Confidential
Copyright © HUAWEI Technologies Co., Ltd.
26
Figure 2-8 The recommended connection of the POWER_ON_OFF pin
RESIN_N
Table 2-8 Differences of RESIN_N interface
Pin
No.
Interface
Name
MU509
MC509
MU609
ME209u
-526
ME909u
MU709
ME909s
100
Control
RESIN_N
Y
Y
Y
Y
Y
Y
Y
The RESIN_N pin is used to reset the module's system. If the software of module
stops responding, you can reset the hardware through the RESIN_N signal as shown
in Figure 2-9 . When a low-level pulse is supplied through the RESIN_N pin, the
hardware will be reset, and then the software starts powering on the module and
reports relevant information according to the actual settings.
Figure 2-9 The recommended connection of the RESIN_N pin