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SIM800H Datasheet(PDF) 34 Page - SIMCom

No. de pieza SIM800H
Descripción Electrónicos  Hardware Design_V2.02
PDF  73 Pages
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Fabricante Electrónico  SIMCOM [SIMCom]
Página de inicio  https://www.simcom.com
Logo SIMCOM - SIMCom

SIM800H Datasheet(HTML) 34 Page - SIMCom

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4.6. RI Behaviors
Table 12: RI behaviors
State
RI response
Standby
High
Voice call
The pin is changed to low. When any of the following events occur, the pin will be changed
to high:
1)Establish the call
2)Hang up the call
Data call
The pin is changed to low. When any of the following events occur, the pin will be changed
to high:
1)Establish the call
2)Hang up the call
SMS
The pin is changed to low, and kept low for 120ms when a SMS is received. Then it is
changed to high.
URC
The pin is changed to low, and kept low for 120ms when some URCs are reported. Then it is
changed to high. For more details, please refer to document [10].
The behavior of the RI pin is shown in the following figure when the module is used as a receiver.
Figure 27: RI behaviour of voice calling as a receiver
Figure 28: RI behaviour of data calling as a receiver
SIM800H&SIM800L_Hardware Design_V2.02
34
2015-07-27



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