Led Indicator - Bausch Datacom DinBox GSM M4 Configuration Manual

6. LED Indicators
There is one RGB status LED located onto the front of the DinBox GSM M4 modem.
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
DTR red Data Terminal
Ready
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
DTE  DCE 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