5G Module Series
RM500Q-GL Hardware Design
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4 Application Interfaces
The physical connections and signal levels of RM500Q-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
⚫ Cellular/WLAN COEX interface*
⚫ Antenna tuner control interface*
⚫ 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
RM500Q-GL has two (U)SIM interfaces, and supports dual SIM single standby.
Table 14: Pin Definition of (U)SIM Interfaces