GSM/GPRS Module Series
M66 Hardware Design
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3.13. Network Status Indication
The NETLIGHT signal can be used to drive a network status indicator LED. The working state of this pin
is listed in the following table.
Table 20: Working State of the NETLIGHT
A reference circuit is shown as below.
Module
NETLIGHT
4.7K
47K
300R
VBAT
Figure 37: Reference Design for NETLIGHT
The module is not running.
The module is not synchronized with network.
The module is synchronized with network.
The GPRS data transmission after dialing the PPP connection.