Address allocation
Resonance Search
1
Where S-Quad sounder devices manufactured post April 2014 are
installed in a system then these devices automatically check that the
components used to produce the sound output are working at their
resonant frequency, this is the optimum point where the sound output
is at its loudest for the lowest power consumption.
During a resonance search the sounders will slowly change the tone
frequency to confirm the resonant point. This change in tone frequency
will be heard as a slight tone shift that lasts for about 1 minute.
After each allocation of loop circuit from a VIGILON or VIGILON
Compact panel and subsequent first operation of the Sound Alarm
function then there is one time only post allocation Resonance Search
performed.
&
Always power-up the panel with the mains supply first and then
connect the battery. The power-down sequence should be in the reverse order.
How addresses are allocated to devices on the loop
Each device connected to a loop circuit is allocated a software address on a sequential lowest
unused value basis. The allocation of addresses starts from one End of a loop circuit in a numerical
order. If both ends of the loop circuit are connected then the allocation of addresses start from
End1. On reaching a T-breaker the devices on the spur circuit are allocated addresses. On
completion of allocation of addresses to the spur circuit the process continues along the main loop.
Address allocation with Loop circuit end 1 connected
&
Ensure the panel is first powered-down before connecting the external
loop cables to the panel.
It is recommended that each external circuit is wired up to the terminals at the panel, one circuit at
a time and tests conducted to ensure that each circuit is functioning correctly. We start by
connecting End 1 of the loop only.
¨
Ensure end-2 of the loop cable remains disconnected.
¨
Switch ON the mains and battery supply to power-up the panel, you will initially see
the powering up messages. If there are no device 'address allocation' faults the panel
will start the loop.
Allocating Loop n
Allocation: OK at Card X : Allocated Y
4188-856_issue 7_07/15_Generic Vigilon (Compact + VA) Comms. 55
Vigilon 4/6 loops & Compact (VA) panels & network nodes
Address allocation
1 2 3
4
9 10
11
12
5 6 7 8
13
22
23 24 25
14
30
31
29
28
21
15
32 27 26 20 19 18 17
16
CONTROL
PANEL
Main
loop
circuit
Spur
on
main
loop
Spur on main loop
END 2
Note: The End 2 connection is
not made at this stage of commissioning
Spur
on
main
loop
Previous
Next
END 1
1 Resonance search has the advantage that ensures sounders operate at maximum efficiency, especially in extremes of temperature and to take
account of potential ageing of the sounder parts with time. It is important for resonance search to be conducted during annual maintenance.
Note also sounder & VAD devices are monitored for failure. Also EN54 Part 3 speech sounder has an attention tone volume that is lower than the
volume output from a standard sounder. All speech sounder devices will not perform the resonance search unless this mode is exited and set to
maximum volume.
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