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Lifeline 4000 Advanced User Guide (B)
Copyright © 2000 Tunstall Group Ltd.
Mains fail call configuration
Lifeline 4000 can make an alarm call when the mains power fails and it has to switch over to using
its batteries. This call takes place one hour after the mains failure. However, this can mean that
every Lifeline in a town that has a power cut will try to call the control centre exactly one hour
after the beginning of the power cut, thus jamming the telephone lines. Consequently, Lifeline
4000 can be made to make this call at a random time after the beginning of the power cut.
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Digit 4 of parameter 93 (see the table above) determines whether a mains restored call will be
made at all. If it is set to 0 then no mains fail call will be made, while a value of 1 in the fourth digit
will make Lifeline raise a mains restored call.
Mains fail call time range.
The first digit of parameter 93 determines the time range (in hours)
in which Lifeline can make the mains fail alarm call. If it is set to 0 then it will make the call exactly
one hour after the mains failure. If the first digit is set to 1 then it will make the call between one
and two hours after the mains failure. If this digit is set to 4 then Lifeline will make the call
between 1 and 5 hours after the mains failure. The maximum is 9 hours.
Mains restored call time range.
The second digit is the time range (in hours) in which Lifeline
4000 will make a call to say that the mains has been restored. If this digit is set to 0 then the
mains restored alarm call will be made immediately after the mains power has been restored. If
the digit is set to 1 then Lifeline will make the call at any time up to one hour after the mains
power was restored. If the digit is set to 3 then Lifeline will make the call any time up to a
maximum of three hours after the mains power was restored. Again, the maximum is 9 hours.
Mains fail call frequency.
Lifeline can be made to repeatedly call with a mains fail alarm. Digits
five and six in parameter 93 determine the time in hours between each call. The maximum of 12
hours. The minimum of 00 hours will mean that, after the initial mains fail call, no further calls are
made until the mains is restored and a mains restored call is made.
Battery low call.
The battery low digit determines whether a call is made to the control
centre when the battery needs to be changed. A value of 1 means that the call will be made. A
value of zero means that the call will not be made.
Packing shutdown time.
This setting is used during manufacture. It is the time the Lifeline
4000 will remain turned on after it has lost both a telephone connection and mains power. This
time is entered in minutes and seconds, with the maximum being 59:59—59 minutes and 59
seconds. If this value is set to 00:00 then the Lifeline 4000 will never shut down after it has lost
both a telephone connection and mains power.
Summary of Contents for Lifeline 4000
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