User manual
6.9.11 Alarm event retain time
When telephone line and GSM all fault, the alarm event will be retained in
the preset time. Otherwise it will loss. After telephone line and GSM recovery,
it will upload to the CMS. (default time is 10 mintus).
For example: set the alarm information retention time is 255 minutes
Press[*] for 3 seconds
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9 #
Enter password
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Retain time :1-255 mintus.Less than 3 bits high zero.
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