12
Neon
- Conventional Fire Alarm Control Panel
board of the panel there are three (3) sets of micro switch
-
es modules SW-A to SW-C. Every module consists of 8
micro switches No.1
to No.8 as shown on
Figure 3
.
Their
position during hardware reset define the effective configu
-
ration. Hardware reset is performed either during power
up or after pressing the button labeled SW-RESET on the
PCB (see section 1).
Figure 3.
Micro switches
The ON position of the micro switches equals to EN-
ABLED status.
The OFF position of the micro switches equals to DIS-
ABLED status
All switches that are not used must be set to the OFF
position.
The various settings of the micro switches along with their
operation are listed in the following sections.
8.1 Micro switches SW-A
Micro switches SW-A
1
Cross zones 1 and 2
2
Cross zones 3 and 4
3
Cross zones 5 and 6
4
Cross zones 7 and 8
5
Relay 2 active only during pre-alarm
(Cross or Alarm Verification)
6
Binary value of Alarm Verification delay.
0: disabled.
Increments of 10 seconds.
7
8
Table 6.
Micro switches SW-A
8.1.1 Cross zoning (Coincidence)
The Neon fire panel may be configured to require two si
-
multaneous and different zone alarms to trigger the gen
-
eral fire alarm. This minimizes the chances of false alarms.
The operation of the system is based on the definition of
zone pairs. A zone pair is activated by the corresponding
microswitch as shown in table above (SW-A-1,2,3,4).
A zone pair is considered by the system as one zone. Both
zones have to be in alarm for the general fire alarm to be
active.
If only one zone has been triggered, the pre-alarm state is
activated. In this state:
•
the panel’s buzzer is activated.
• the relay output 2 (S2) is activated if dedicated to pre-
alarms (SW-A-5)
• The user can cancel the pre-alarms condition and reset
the triggered zone with the Reset operation (in A.L.2).
•
If the second zone of the pair gets activated as well,
then the system enters the Fire Alarm state. Both
zones of the pair are indicated in alarm.
8.1.2 System setup - Zone inputs
To enable the cross zoning function place the appropriate
micro-switches to the ON position according to Table 6. Ex
-
ample: switching SWA-1 to ON, will activate cross-zoning
on zones 1 and 2. The two zones (1
st
and 2
nd
) should be
connected to the detectors that are installed in the pro-
tected area. A common practice is to install different types
of detectors. Example: the first zone has a photoelectric
smoke detector and the second zone has a temperature
detector (Rate of Rise Heat detectors)
.
8.1.3 Alarm outputs pattern
The
Neon
main board provides four supervised* outputs
for the connection of Notification appliances (signalling de
-
vices) namely S1 to S4.
The alarm outputs S3 and S4 may be set to one of two dif
-
ferent patterns:
The first option is to provide constant power.
The second option is to provide a periodic and interrupted
pattern that conforms to the ANSI standards for evacuation
(Figure 4).
The ANSI evacuation sound has three (3) half second ON
periods that repeat after a silence of 1.5 seconds.
500msec
4sec
Pattern a
Pattern b
Notification
appliance
sound
1.5sec
Continuous Sound
Interrupted Sound
Time
Figure 4.
Alarm outputs pattern
If the ANSI pattern is selected the activation of Sirens 3 and
4 is synchronized. This makes possible the use of notifica
-
tion appliances without the need for extra synchronization
modules, thus lowering the cost of the system.
The option is controlled by switches SW-C-6 and SW-C-7
for relays S3 and S4 respectively.
*A supervised output is one that is monitored by the system
for fault conditions.
8.2 Micro switches SW-B
Micro switches SW-B
1
The corresponding zone belongs to the Alarm
Verification group
2
3
4
5
6
7
8
Table 7.
Micro switches SW-B
8.3 Micro switches SW-C
Microswitches SW-C
1
Binary value of Output Delay.
0: feature disabled.
Increments of 1 minute.
2
3
4
Output delay is not applicable if alarm event comes
from first half zones
5
Output delay also affects relays 1 and 2 (Siren 1 & 2)
6
Siren relay 3 produces ANSI evacuation pattern
7
Siren relay 4 produces ANSI evacuation pattern
8
Disable evacuation from A.L.1
