Pinout - SimCom SIM900 User Manual

PI INOUT:
1. DC IN Jack: D
2. Power Enab
board. Whe
3. Power Indic
4. EXT‐EN: Exte
circuit.
5. S/W: Onboa
6. Power ON s
Automatic)
7. RI LED and B
State
Standb by
Voice C Call
Data ca all
SMS
URC
8. Buzzer Enab
DC Input PIN N for GSM M
ble Switch: T his is Power
n pressed tu urns ON the b
cator LED: M odem powe
ernal enable es pin to turn
ard switch to o turn ON or
election jum mper: To sele
Buzzer: Incom ming messag
R I Response
H igh
Th he PIN is cha anged to Low
ch hanged to Hi igh
1. .Establish th e call
2. .Hang up the e call
Th he PIN is cha anged to Low
ch hanged to Hi igh
1. .Establish th e call
2. .Hang up the e call
Th his PIN chan ged to LOW
ch hanged to HI IGH.
Th his PIN chan ged to LOW
it is changed t to HIGH.
ble Jumper: J Jumper to en
ODEM.
enable switc ch to Turn O
board and w hen released
r indicator L ED.
n ON or OFF S SIM900A mo
r OFF SIM900 0A module m manually.
ect the powe er ON mode o
ge and call in ndicator LED
w. when any of the follow
w. when any of the follow
and kept LO OW for 120m
and kept LO OW for 120m
nable or disa able onboard
N or turn OF FF power to t
d turns OFF t the board
odule with ex xternal contr
of the SIM90 00A (Manual
and buzzer.
wing events o occurs the PI
wing events o occurs the PI
s when SMS is received a
s when URC is reported
d buzzer.
the
rolling
or
IN will
IN will
and then
and then