_______________________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: +44 (0)208 743 8880
www.e-2-s.com Fax: +44 (0)208 740 4200
Document No. D201-00-601-IS Issue 2 24-08-16 Sheet 6 of 8
13.4 Line
Monitoring
On BExCS110-05D DC units, dc reverse line monitoring can
be used if required. All DC sounders have a blocking diode
fitted in their supply input lines. An end of line monitoring
diode or an end of line monitoring resistor can be connected
across the +ve and –ve terminals. If an end of line resistor is
used it must have a minimum resistance value of 3k3
Ω
and a
minimum power rating of 0.5 watts or a minimum resistance
value of 500
Ω
and a minimum power rating of 2 watts.
The resistor must be connected directly across the +ve and -
ve terminals as shown in the following drawing. The resistor
leads should be kept as short as possible.
Fig. 8 End of Line Resistor Placement
14) Wiring the combined sounder/beacon for
simultaneous operation
The sounder and beacon sections can be wired to the same
input supply so that they operate simultaneously or they can
be wired to separate input supplies so they can be operated
independently (see fig. 3, 5 & 6).
If the sounder and beacon sections are connected to the
same input supply. The incoming cables should be connected
to the input terminals on the beacon board and the two link
wires, that are supplied with the unit, should be used to link
the supply from the interconnecting terminals on the beacon
board down to the supply terminals on the sounder board.
15) Settings
15.1 Tone
Selection
The sounders have 32 different tones that can be selected for
the first stage alarm. The sounders can then be switched to
sound second and third stage alarm tones. The tones are
selected by operation of a DIP switch on the pcb for both DC
and AC units. The tone table on page seven shows the
switch positions for the 32 tones and which tones are
available for the second and third stages. To operate the
sounder on stage one simply connect the supply voltage to
the normal supply terminals (+ve and –ve for DC units, L and
N for AC units).
15.2 Volume
Control
The output level of the BEx sounder can be set by adjusting
the volume control potentiometer (see Fig 9) with the
exception of 12V DC units. For maximum output, set the
potentiometer fully clockwise.
BExCS110-05D AC
BExCS110-05D DC
Fig. 9 Location of Volume Control Potentiometer
15.3 Flip/Flop
Operation
Two units can be mounted close to each other to form a flip-
flop operation, where the beacons will flash alternately. To
achieve this mode of operation, fit a pin header to the flip-
flop header pins on the electronics board, i.e. the two header
pins are shorted together, on one of the two beacons. The
first flash on the beacon that has the header fitted will be
delayed by ½ second. The two beacons will then flash
alternately every ½ a second.
Warning - High noise levels above 85dB(A)
during operation. High levels of noise may
cause hearing loss, wear suitable ear
protection when equipment is in operation.
End of Line Resistor
Volume Control
Potentiometer
Volume Control
Potentiometer