NEKA 7
Setting the operating mode
If you are installing several sirens in the same area, the jumpers on the electronic board allow to select different sound for each
one, thus permitting users to distinguish between them. You can also select different sounds for different alarm types (gas leak,
burglary, flooding, etc.) or locations (office, warehouse, garage, etc.). This feature allows users to recognize the alarm type and its
location. Jumpers S allows to select the sounds for inputs +N, AF and A. Other jumpers allow to set the maximum alarm time, the
input polarity and internal tamper mode. For the various programming options provides by the jumpers refer to table 2 (first column
shows the default). For the frequency profile of the audible signals refer to “Available sounds” on page 15.
Maximum alarm time
T
10 minutes
T
3 minutes
Alarm sound
S
Tamper (automatic mode): Up scale modu-
lation LF.
+N: Up and down scale modulation (LF).
AF: Up and down scale modulation (HF).
A: Multitone HF.
S
Tamper (automatic mode): Up scale modula-
tion LF.
+N: Up and down scale modulation (HF).
AF: Up scale modulation HF.
A: Up and down scale modulation LF.
AF, A and F input activation polarity
P
Inputs on standby when disconnected.
Inputs activate when connected to negative.
P
Inputs on standby when connected to nega-
tive.
Inputs activate when disconnected.
If this option is selected, not used inputs
must be connected to
M
terminal.
Trouble signalling
Trouble signalling ON (test mode): alarm
activation is inhibited.
Tamper mode
Automatic mode: automatic activation of the
siren for tamper.
Normal mode: the siren must be connected
to the control panel tamper line.
Foam-tamper mode (NEKA-F/NEKA-FS only)
Foam tamper generates a tamper alarm like
siren opening and siren wall removal.
Foam tamper generates an alarm independ-
ent from siren opening and siren wall
removal.
Table 2 – Jumper description. HF and LF indicate the sound frequency range: HF = 1100/2400 Hz, LF = 800/2000 Hz.
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