Application Interfaces; U)Sim Interfaces; Pin Definition Of (U)Sim Interfaces - Quectel RM502Q-GL Hardware Design

4

Application Interfaces

The physical connections and signal levels of RM502Q-GL comply with PCI Express M.2 specification.
This chapter mainly describes the definition and application of the following interfaces/pins of the module:
⚫

(U)SIM interfaces

⚫
USB interface
⚫
PCIe interface
⚫
PCM interface
⚫
Control and indication interfaces
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Cellular/WLAN COEX interface*
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Antenna tuner control interface*
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Configuration pins
4.1. (U)SIM Interfaces
The (U)SIM interfaces circuitry meets ETSI and IMT-2000 requirements. Both Class B (3.0 V) and Class
C (1.8 V) (U)SIM cards are supported.

4.1.1. Pin Definition of (U)SIM Interfaces

RM502Q-GL has two (U)SIM interfaces, and supports dual SIM single standby.
Table 14: Pin Definition of (U)SIM Interfaces
Pin No. Pin Name
36 USIM1_VDD
34 USIM1_DATA
32 USIM1_CLK
30 USIM1_RST
RM502Q-GL_Hardware_Design
I/O Description
PO Power supply for (U)SIM1 card
DIO, PU (U)SIM1 card data
DO, PD (U)SIM1 card clock
DO, PD (U)SIM1 card reset
5G Module Series
RM502Q-GL Hardware Design
DC Characteristics
1.8/3.0 V
USIM1_VDD
1.8/3.0 V
USIM1_VDD
1.8/3.0 V
USIM1_VDD
1.8/3.0 V
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