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6.
Indicateurs LED
Il y a 8 LED situées sur le circuit imprimé
du modem InduBox GSM M4.
L1
green RSSI: Received
Signal Strength,
indicating the
received power level.
A higher number
indicates a better
connection.
L2
green WAN TCP/IP
connection
GSM yellow
GSM Network
service
TXD
red
Transmit Data
RXD
red
Receive Data
Data Terminal Ready DTE → DCE
DTR
red
DCD
red
Data Carrier Detect
RI
red
Ring Indicator
DC
green
Isolated 5Vdc power
supply
DCE
Always ON : +CSQ==99
1 periodical flash: +CSQ >10
2 periodical flash: +CSQ 10-14
3 periodical flash: +CSQ 15-19
4 periodical flash: +CSQ 19-23 :
5 periodical flash: +CSQ >23
(2G RSSI levels)
DCE
OFF: No connection
Slow flash: WAN IP received
ON: TCP socket open
DCE
ON: not registered on the network
Slow flash (2 s. OFF):
registered on the network
Quick flash (600 ms OFF):
communication in progress
DTE → DCE
TXD signal of the GSM module
DCE → DTE
RXD signal of the GSM module
DTR signal of the GSM module
DCE → DTE
DCD signal of the GSM module
DCE → DTE
RI signal of the GSM module
-
OFF: no voltage present
ON: voltage present
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