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3.2 Meaning of the LEDs
NOTE Operations in progress but messages cannot be sent until Modem Mode is terminated
(see section 7.5.5).
Meaning of the LEDs Installation and Mounting
3-3 MITSUBISHI ELECTRIC
LED Status Meaning
Power
(yellow)
Device operational
No power supply
Process
(red)
Processing in progress: message generation, variable changes etc.
Normal operation, no processing in progress
Line
(green)
Connection present
Modem is not logged onto the GSM network
flashes 1x
Modem is logged onto the GSM network. LED flashes every 2 s (only GM series).
flashes
Outgoing/incoming call: establishing connection, LED flashes 4 times per second.
Data Out
(yellow)
Message ready to send waits inside the device
No message in outbox
Modem
Mode
(red)
TiXML Mode
standard mode for the Mitsubishi Alarm Modem.
Modem Mode (device usable as generic modem via COM1)
Transparent Mode (device provides transparent connection)
Tab. 3-3: Meaning and function of the LEDs
SIM-Card Push
COM2
(RS232)
COM1
(RS232)
-+
DC 10...30V
Service
Power
Process
Line
Data out
Modem Mode
Antenna
Power
Process
Line
Data out
Modem Mode
Fig. 3-3: LEDs on the modem