SIM Tech SIMCom SIM800 - Page 17

Smart Machine Smart Decision
SIM800_Hardware Design_V1.09 17 2016-06-30
BT_ANT
53
I/O
Bluetooth antenna port
Impendence must be
controlled to 50Ω.
RF synchronization
RF_SYNC
67
O
RF burst synchronous signal
Do not pull up
Other signal
RESET
16
I
Reset input(Active low)
KPLED
23
I
Drive keypad backlight