Quectel BC660K-GL

https://www.mouser.kr/datasheet/2/1052/Quectel_BC660K_GL_NB_IoT_Specification_V1_4_1-3009753.pdf

 

 

https://www.atestore.de/media/datasheets/Quectel_BC660K-GL-TE-B_User_Guide_V1.0_ate.pdf

 

 

 

 

Block Diagram

https://fcc.report/FCC-ID/XMR2021BC660KGL/5098133.pdf

PIN map