IP LDK-20 Programming Manual System Feature
62
2.4.2 Alarm
Description
The system can be programmed to recognize the status of an external contact (normally open or
closed) from a relay. When activated, the system will signal programmed stations with a single tone
repeated per 1-min. interval or a continuous tone. This capability is commonly employed to provide
remote alarm signals. When used as an alarm, the assigned stations receive the programmed signal.
To stop the signal, the alarm should be deactivated (reset) from a station assigned to receive the
alarm signal.
Operation
At detecting the Alarm contact, the system sends the appropriate alarm signal to assigned stations.
To terminate the alarm signal while idle status;
Dial
5 6 5
and confirmation tone is heard. The alarm signal is terminated at all assigned stations.
To reset alarm;
Clear the alarm condition and reset (terminate) the alarm signal. The proceeding steps can be done in
any order to reset.
Condition
1. An external contact should be connected to the alarm input.
2. The alarm contacts should be “dry” (no voltage/current source connected).
3. SLT cannot receive alarm signal.
4. Alarm reset can be programmed in a flexible button.
Admin Programming
n
Alarm Enable
4.4.4.1 (PGM 163 – FLEX 1)
n
Alarm Contact Type
4.4.4.2 (PGM 163 – FLEX 2)
n
Alarm Mode
4.4.4.3 (PGM163 – FLEX 3)
n
Alarm Signal Mode
4.4.4.4 (PGM 163 – FLEX 4)
n
Station Alarm Attribute
4.1.4.10
(PGM 113 – FLEX10)
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