Network Status Indicate Interface; Interface Status Description - Fibocom NL668-LA Hardware User Manual

5.2 Network status indicate interface

NL668-LA series module provides three network status indicate pins. Pin 5 is network status indicator by
default, AT commands AT+LEDCFG can switch to pin6 or pin61, table 5-4 is the pin definition.
PIN Name
NET_MODE
NET_STATUS
STATUS

5.2.1 Interface status description

Network status indicate pins are used to driven indicate light and describe module's network status,
NL668-LA series module network indicates light work status description as follow table:
Mode Module Network indicator pin status
1 600ms High/600ms Low
2 3000ms High /75ms Low
3 75ms High / 75ms Low
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FIBOCOM NL668-LA Series Hardware User Manual
Figure 5- 7 Reset Timing
I/O PIN Num.
O 5
O 6
O 61
Table 5- 4 Network Status Indicate
Description
Network status indicator (by default)
Network status indicator
Network status indicator
Indicator light flash/off
status
Flash
600ms on /600ms off
Slow flash
3000ms on/75ms off
Speed flash
Description
No SIM card
Request SIM PIN
Registering network
(T<15S)
Register network failed
Standby
Data link established
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