U)Sim Interfaces - Quectel EG060K Series Hardware Design

4.1. (U)SIM Interfaces

The module provides two (U)SIM interfaces. The circuitry of (U)SIM interfaces meets ETSI and IMT-2000
requirements. Both 1.8 V and 3.0 V (U)SIM cards are supported, and Dual SIM Single Standby function
is supported. (U)SIM card hot-plug is enabled by AT+QUIMSLOT command. See document [4] for
details about the AT command.
Table 12: Pin Definition of (U)SIM Interfaces
Pin Name Pin No.
USIM1_DET 25
USIM1_VDD 26
USIM1_CLK 27
USIM1_RST 28
USIM1_DATA 29
USIM2_VDD 74
USIM2_DATA 77
USIM2_DET 78
USIM2_RST 79
USIM2_CLK 80
The module supports (U)SIM card hot-plug via USIM_DET pins, and both high and low level detection
are supported. The function is disabled by default, and see AT+QSIMDET in document [4] for more
details.
The following figure shows a reference design for a (U)SIM interface with an 8-pin (U)SIM card
connector.
EG060K &EG120K _Series_Hardware_Design
103
I/O Description
DI USIM1 card hot-plug detect
PO USIM1 card power supply
DO USIM1 card clock
DO USIM1 card reset
DIO USIM1 card data
PO USIM2 card power supply
DIO USIM2 card data
DI USIM2 card hot-plug detect
DO USIM2 card reset
DO USIM2 card clock
LTE-A Module Series
Comment
If unused, keep it open.
If USIM2 interface is unused,
keep it open.
If USIM2 interface is unused,
keep it open.
If USIM2 interface is unused,
keep it open.
If USIM2 interface is unused,
keep them open.
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