Huawei ME909 Drums User Manual


 
HUAWEI ME909 Series Mini PCIe Module
Hardware Guide
Description of the Application Interfaces
Issue 0.1 (2013-06-09)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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Figure 3-10 Circuit diagram of the interface of the PCM (ME909 module is used as PCM
master)
PCM_SYNC: Output when PCM is in master mode;
PCM_CLK: Output when PCM is in master mode;
The PCM function of ME909 only supports master mode;
It is recommended that a TVS be used on the related interface, to prevent electrostatic
discharge and protect integrated circuit (IC) components.
3.12 RF Antenna Connector
The ME909 module provides three antenna connectors (MAIN, GPS and AUX) for
connecting the external antennas.