Product Info

5G Module Series
RM502Q-GL Hardware Design
RM502Q-GL_Hardware_Design 3 / 77
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 5
Figure Index ................................................................................................................................................. 6
1 Introduction .......................................................................................................................................... 8
1.1. Safety Information ....................................................................................................................... 9
2 Product Concept ................................................................................................................................ 10
2.1. General Description .................................................................................................................. 10
2.2. Key Features ............................................................................................................................. 11
2.3. Functional Diagram ................................................................................................................... 13
2.4. Evaluation Board ....................................................................................................................... 14
3 Application Interfaces ....................................................................................................................... 15
3.1. Pin Assignment ......................................................................................................................... 16
3.2. Pin Description .......................................................................................................................... 17
3.3. Power Supply ............................................................................................................................ 21
3.3.1. Decrease Voltage Drop .................................................................................................. 21
3.3.2. Reference Design for Power Supply .............................................................................. 22
3.4. Turn on and off Scenarios ......................................................................................................... 23
3.4.1. Turn on the Module ........................................................................................................ 23
3.4.1.1. Turn on the Module with a Host GPIO ................................................................ 24
3.4.1.2. Turn on the Module Automatically ...................................................................... 24
3.4.1.3. Turn on the Module with Compatible Design ...................................................... 25
3.4.2. Turn off the Module ........................................................................................................ 26
3.4.2.1. Turn off the Module through FULL_CARD_POWER_OFF# .............................. 26
3.4.2.2. Turn off the Module through AT Command ........................................................ 26
3.5. Reset ......................................................................................................................................... 28
3.6. (U)SIM Interfaces ...................................................................................................................... 30
3.7. USB Interface ............................................................................................................................ 32
3.8. PCIe Interface ........................................................................................................................... 35
3.8.1. Endpoint Mode ............................................................................................................... 35
3.8.2. USB Version and PCIe Version ..................................................................................... 37
3.9. PCM Interface* .......................................................................................................................... 38
3.10. Control and Indication Interfaces .............................................................................................. 40
3.10.1. W_DISABLE1#* ............................................................................................................. 41
3.10.2. W_DISABLE2#* ............................................................................................................. 41
3.10.3. WWAN_LED#* ............................................................................................................... 42
3.10.4. WAKE_ON_WAN#* ....................................................................................................... 43
3.10.5. DPR* .............................................................................................................................. 44
3.10.6. STATUS* ........................................................................................................................ 44
3.11. Cellular/WLAN Interface* .......................................................................................................... 45