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M10 Hardware Design
Data calling
Change LOW, then
:
(
1
)
Change to HIGH when establish calling.
(
2
)
Use AT command ATH, the RI changes to HIGH.
SMS
When receive SMS, The RI will change to LOW and hold low level about
120 ms, then change to HIGH.
URC
Some URCs triggers 120ms low level on RI. For more details, please refer
to the
document [10]
If the module is used as caller, the RI will maintain high. However, when it is used as receiver,
following is timing of ring.
RI
Power on
Ring
Hang on
(talking)
MO or MT
Hang up
Ring
MO or MT
Hang up
Ring
HIGH
LOW
Figure 34
: Module Services as Receiver
RI
Power on
calling
Hang up
Echo
talking
calling
Echo
Hang up
HIGH
LOW
Figure 35
: Module Services as caller
3.16 Network status indication
The NETLIGHT signal can be used to drive a network status indication LED lamp. The working
state of this pin is listed in following table:
Table 24: Working state of the NETLIGHT
State
Module function
Off
The module is not running
M10_HD_V1.00
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