Table Of Contents; Contents - Quectel RG255C-GL Hardware Design

Contents

Safety Information ..................................................................................................................................... 3
About the Document ................................................................................................................................. 4
Contents ..................................................................................................................................................... 5
Table Index ................................................................................................................................................. 7
Figure Index ............................................................................................................................................... 8
1 Introduction ........................................................................................................................................ 9
1.1. Special Mark ............................................................................................................................ 9
2 Product Overview ............................................................................................................................ 10
2.1. Frequency Bands and Functions ........................................................................................... 10
2.2. Key Features ......................................................................................................................... 11
2.3. Functional Diagram ............................................................................................................... 13
2.4. Pin Assignment ...................................................................................................................... 14
2.5. Pin Description ....................................................................................................................... 14
2.1. EVB Kit................................................................................................................................... 18
3 Operating Characteristics ............................................................................................................... 19
3.1. Operating Modes ................................................................................................................... 19
3.2. Sleep Mode ............................................................................................................................ 20
3.3. Airplane Mode ........................................................................................................................ 20
3.4. Power Supply ......................................................................................................................... 21
4 Application Interfaces ..................................................................................................................... 22
4.1. (U)SIM Interface .................................................................................................................... 22
4.2. USB Interface ........................................................................................................................ 24
4.3. UART ..................................................................................................................................... 25
4.4. PCM* and I2C Interfaces ....................................................................................................... 26
4.5. Control and Indication Signals ............................................................................................... 29
4.5.1. RI .................................................................................................................................. 30
4.5.2. W_DISABLE# ............................................................................................................... 30
4.5.3. DTR .............................................................................................................................. 31
4.5.4. PERST# ....................................................................................................................... 31
4.5.5. LED_WWAN# ............................................................................................................... 31
4.5.6. WAKE# ......................................................................................................................... 32
5 Antenna Connection ........................................................................................................................ 34
5.1. Antenna Connectors .............................................................................................................. 34
5.2. Antenna Interfaces ................................................................................................................ 34
5.2.1. Pin Definition of Antenna Interfaces ............................................................................. 34
5.2.2. Cellular Network ........................................................................................................... 35
5.2.2.1.
5.2.2.2.
5.2.3. GNSS (Optional) .......................................................................................................... 38
RG255C-GL_Mini_PCIe_Hardware_Design
Rx Sensitivity...................................................................................................... 35
Tx Power ............................................................................................................ 37
5G Module Series
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