- Mitsubishi Digital Electronics Modem User's Manual

6 Operation
Once all installation steps have been completed, you can start operating the Mitsubishi Alarm
Modem.
Self-test after power up
The Mitsubishi Alarm Modem carries out an extensive self-test after the power supply is
switched on. All the LEDs will switch on for test purposes and all three types of memory are
checked. The memory test is also carried out automatically with every power up.
Memory test
This tests the internal memory with RAM, program memory (Flash ROM) and the file system in
the user memory (Flash). On basic models (2 MB for the user memory) this test lasts approx. 12
seconds. If memory expansions have been fitted, the time can be considerably longer depend
-
ing on the size of memory in use.
Operation
Mitsubishi Alarm Modem 6-1
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. 6-1: LEDs on modem
Power
(yellow)
Process
(red)
Line
(green)
Data Out
(yellow)
Modem Mode
(red)
Starting Self-test
Testing LEDs
flashes
Testing memory
Modem is fully operational
Duration: approx. 12 sec
Tab. 6-1: LEDs during the self-test