2.5 Automated Self Diagnosis
The EM-181 performs self-diagnostic checks.
If the unit detects a problem, an audible message will play through the speaker to alert a fault.
2.5.1 Power Supply Check
The unit will continuously check the power supply input voltage.
If the power drops out, the unit will remain powered from the internal backup battery.
The following audible message will play every 20 minutes to alert of a power failure:
"Power supply test failed. Please report this failure to building management immediately".
2.5.2 Telephone Line Check
The unit will continuously check the telephone line voltage.
If the telephone line voltage drops, then the following audible message will play every 20 minutes to
alert of a telephone line failure:
"A telephone line fault has been detected, please contact building management immediately".
2.6 SD Card Call Record
If an SD is inserted into the EM-181Mu it will record all alarm calls for later retrieval.
NOTE: SD Card will need to be in FAT32 format.
2.7 Automatic Self-Shutdown
The EM-181Mu periodically scans for the presence of a 24V power supply, a connected phone line,
and any stations on the station bus – if none of these are present, the unit will turn itself off to
preserve battery life when not in use.
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