Ap1 ap2 – STI AP-1-G-I User Manual
Page 8
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Networking the Alert Point
Networking 3 or more units - (ensure the front cover is removed)
Step 1. Ensure that all of the units are switched `OFF’.
Step 2. DIL switch SW12 should be `ON‘ on all of the units
(the Alert Point expects to be connected to another unit).
Step 3. Connect the ‘Network COM’ terminals by inserting a wire
into unit #1, and linking this to the same terminal on unit
#2. Now do the same by connecting an additional wire to
the ‘Network COM’ terminal on unit #2, and linking this to
the same terminal on unit #3. Repeat this for subsequent
units until all units are linked.
Step 4. Insert a wire into the ‘Network Out’ terminal on unit #1, and
link this to the ‘Network In’ terminal on unit #2. Now insert
a wire into the ‘Network Out’ terminal on unit #2 and link
this to the ‘Network In’ terminal on unit #3. Repeat this for
each subsequent unit.
Step 5. Important! On the final unit (e.g. Unit #3) ensure that the ‘Network Out’ terminal is linked
back to the ‘Network In’ terminal on unit #1, creating a loop. (It is not necessary to do this
step for the COM wire).
Step 6. Turn all the units ‘ON’ using the master key switch.
Step 7. TEST
Alert Point 1, depress the operating element. This will send the unit into alarm condition,
causing the activation flag to drop into view, the LED to flash red and the integral alarm to
sound.
Alert Points 2 & 3 will also immediately trigger into alarm, with LEDs flashing red and their
integral alarms sounding.
Step 8. Resetting the networked units can only be done by manually resetting the originally
activated unit (showing the activation flag, in this case unit #1) using the reset key. This will
return the other units back into ‘standby’ condition.
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AP1
AP2
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AP3
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Networking Features
Loss of connection between units:
Any loss of connection between the networks will be indicated as a fault (double beep every 90 seconds)
this will only be indicated on the unit expecting the input signal.
In the example above the `Network In’ connection is lost on Alert Point 2.
Resulting in
1. Alert Point 2 - The LED will flash red and a warning double beep will sound every
90 seconds.
2. Alert Point 1 - cannot trigger Alert Point 2 into alarm condition: the signal is lost
to the `Network In’ connection on Alert Point 2.
3. Alert Point 2 can still trigger Alert Point 1 into `alarm’ condition as the connection
remains intact between the `Network Out’ on Alert Point 2 and the `Network In’ on
Alert Point 1.
4. Both units will still continue to work independently.
5. Alert Point 2 will instantly return to its `standby` condition when the connection is
re-made, without* having to reset the unit.
If both units lose their Network In or COMMON connections, they will both signal a
fault.
* Note: to check that the network is functioning correctly whilst avoiding having to
wait 90 seconds for verification, turn the unit OFF then back ON using the master
key switch (a fault will emit a double beep immediately on startup).
Key Switch – Auto reset: DIL Switch No SW11 `ON’ – Auto reset.
If an activated Alert Point is reset back to `standby condition’, a linked Alert Point
will instantly return back to its own `standby’ condition.
Key Switch – Manual reset: DIL Switch No SW11 `OFF’ – Manual reset.
Only if an activated Alert Point is completely reset back to `standby condition’ using
the master key switch, will a linked Alert Point reset back to its own ‘standby’
condition (using the master key switch on a linked Alert Point will have no effect on
the network once it has been turned back ‘ON,’ until the initially activated unit has
been attended to.)
Please note:
Tamper switch activation, low battery warning indication and no power source will
only be signalled on the affected unit.
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AP1
AP2