Quectel RM502Q-GL Hardware Design page 11

5G Module Series
RM502Q-GL Hardware Design
Figure Index
Figure 1: Functional Diagram ..................................................................................................................... 17
Figure 2: Pin Assignment ........................................................................................................................... 18
Figure 3: DRX Run Time and Current Consumption in Sleep Mode ......................................................... 25
Figure 4: Sleep Mode Application with USB Remote Wakeup .................................................................. 25
Figure 5: Power Supply Limits During Radio Transmission ...................................................................... 27
Figure 6: Reference Circuit for VCC Pins .................................................................................................. 28
Figure 7: Reference Design of Power Supply ............................................................................................ 28
Figure 8: Turn on the Module with a Host GPIO ........................................................................................ 30
Figure 9: Turn-on Timing of the Module ..................................................................................................... 30
Figure 10: Turn-off Timing Through FCPO# .............................................................................................. 31
Figure 11: Turn-off Timing Through AT Command and FCPO# ............................................................... 32
Figure 12: Reference Circuit of RESET# with NPN Driving Circuit ........................................................... 33
Figure 13: Reference Circuit of RESET# with Button ................................................................................ 34
Figure 14: Reset Timing of the Module ...................................................................................................... 34
Figure 15: Reference Circuit for Normally Closed (U)SIM Card Connector .............................................. 38
Figure 16: Reference Circuit for Normally Open (U)SIM Card Connector ................................................ 39
Figure 17: Reference Circuit for a 6-pin (U)SIM Card Connector ............................................................. 39
Figure 18: Reference Circuit for USB 3.1/2.0 Interface ............................................................................. 41
Figure 19: PCIe Interface Reference Circuit .............................................................................................. 44
Figure 20: PCIe Power-up Timing of M.2 Specification ............................................................................. 45
Figure 21: PCIe Power-up Timing of the Module ....................................................................................... 46
Figure 22: Primary Mode Timing ................................................................................................................ 47
Figure 23: Auxiliary Mode Timing .............................................................................................................. 48
Figure 24: W_DISABLE1# and W_DISABLE2# Reference Circuit ........................................................... 50
Figure 25: WWAN_LED# Reference Circuit .............................................................................................. 51
Figure 26: WAKE_ON_WAN# Signal Reference Circuit ........................................................................... 52
Figure 27: Recommended Circuit for Configuration Pins .......................................................................... 55
Figure 28: Antenna Connectors on the Module ......................................................................................... 64
Figure 29: RM502Q-GL RF Connector Dimensions (Unit: mm) ................................................................ 65
Figure 30: Specifications of Mating Plugs Using Ø 0.81 mm Coaxial Cables ........................................... 66
Figure 31: Connection between RF Connector and Mating Plug Using Ø 0.81 mm Coaxial Cable ......... 66
Figure 32: Connection between RF Connector and Mating Plug Using Ø 1.13 mm Coaxial Cable ......... 67
Figure 33: Plug in a Coaxial Cable Plug .................................................................................................... 67
Figure 34: Pull out a Coaxial Cable Plug ................................................................................................... 68
Figure 35: Install the Coaxial Cable Plug with Jig ...................................................................................... 68
Figure 36: Thermal Dissipation Area Inside and on Bottom Side of the Module (Unit: mm) .................... 76
Figure 37: Mechanical Dimensions of the Module (Unit: mm) ................................................................... 78
Figure 38: Top and Bottom View of the Module ........................................................................................ 79
Figure 39: Tray Size (Unit: mm) ................................................................................................................. 80
Figure 40: Tray Packaging Procedure ....................................................................................................... 80
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