Quectel BC66 Manual page 14

10 SIM_GND
11 SIM_DATA
12 SIM_RST
13 SIM_CLK
14 SIM_VDD
15 RESET
16 NETLIGHT
17 TXD
18 RXD
19 PSM_EINT
20 RI
24 VDD_EXT
28 RXD_AUX
29 TXD_AUX
35 RF_ANT
38 RXD_DBG
39 TXD_DBG
42 VBAT_BB
BC66&BC660K-GL_Compatible_Design
Dedicated ground
for USIM card
DIO USIM card data
DO USIM card reset
DO USIM card clock
USIM card power
PO
supply
DI Reset the module
Indicate the
DO module's network
activity status
DO Main UART transmit
DI Main UART receive
External interrupt
pin dedicated to
DI waking up the
module from Deep
Sleep mode.
DO Ring indication
Provide 1.8 V
voltage for external
PO circuits.
No voltage output in
Deep Sleep mode.
Auxiliary UART
DI
receive
Auxiliary UART
DO
transmit
DIO Antenna interface
Debug UART
DI
receive
Debug UART
DO
transmit
Power supply for the
module's baseband
PI
part
BC66&BC660K-GL Compatible Design
USIM_GND
USIM_DATA DIO
USIM_RST DO
USIM_CLK DO
USIM_VDD PO
RESET_N DI
NETLIGHT* DO
MAIN_TXD DO
MAIN_RXD DI
PSM_EINT DI
RI DO
VDD_EXT PO
RESERVED -
RESERVED -
ANT_RF DIO
DBG_RXD DI
DBG_TXD DO
VBAT PI
NB-IoT Module Series
Dedicated Ground for
USIM card
USIM card data
USIM card reset
USIM card clock
USIM card power supply
Reset the module
Indicate the module's
network activity status
Main UART transmit
Main UART receive
External interrupt pin
dedicated to waking up
the module from Deep
Sleep/Light Sleep mode.
Ring indication
Provide 1.8/3.3 V
voltage for external
circuits.
No voltage output in
Deep Sleep/Light Sleep
mode.
-
-
Antenna interface
Debug UART receive
Debug UART transmit
Power supply for the
module
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