Sim2 M80 Guía de usuario descargar pdf (Pagina 22)

M80 EVB User Guide

M80_EVB_User_Guide_V1.2 - 21 -

Note: W681360 is not assembled in the EVB board. If you want to use this function, please

assemble this component located at U301.

3.4. SIM Card

M80 provides dual SIM card interface.

3.4.1. SIM1 card interface

Figure 18 and 19 shows the schematic of SIM1 card and the pins assignment of SIM1 card

respectively. SIM1 cassette has adopted an EINT to detect the SIM card.

Figure 18: Circuit of SIM1 card

Quectel

Confidential

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Sim2 M80 Guía de usuario Pagina 22