_______________________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH sales@e-2-s.com Tel: +44 (0)20 8743 8880
www.e-2-s.com Fax: +44 (0)20 8740 4200
Document No. IS 2468-P Issue D 18-03-10 Sheet
4 of 4
inserted into the chamber the wires do not exert excess
pressure on the terminal blocks. This is particularly important
when using cables with large cross sectional areas such as
2.5mm².
13) Flash Pattern Selection and 2nd & 3rd Stages
The BExBGL1D LED beacons have 9 different flash patterns
including one ON state that can be selected for the first
stage. They can then be remotely switched to second and
third stage flash patterns. The flash patterns are selected by
pin headers on the pcb for both DC and AC units. The table
on page four shows the pin header positions for the nine
flash patterns and which patterns are available for the second
and third stages. To operate the led beacon 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).
The operation of the second and third stages is different for
DC and AC units.
DC Units Second and Third Stage Selection
To change to the second stage flash pattern, simply connect
a -ve supply line to terminal S2, while maintaining the dc
supply to the +ve and –ve terminals. Similarly for the third
stage flash pattern, connect a -ve supply line to terminal S3.
The supply line to the S3 terminal will automatically override
a supply to the S2 terminal.
AC Units Second and Third Stage Selection
To select the second and third stage flash patterns on the
BExBGL1D AC beacons the Common (C) terminal on the
three way terminal block on the pcb is connected to the S2
terminal for the second stage tone and the S3 terminal for the
third stage tone.
14) End of Line Monitoring (DC Units)
On the BExBGL1D DC beacons, dc reverse line monitoring
can be used if required. All DC beacons 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 ohms and a minimum wattage of 0.5 watts or a minimum
resistance value of 500 ohms and a minimum wattage of 2
watts.
Flash Pattern Table
Stage 1
LED
Stage 2
Stage 3
Pattern
Flash Pattern
Pattern
Pattern
1
ON
9
8
2
Rotating 3 LED on Fast
7
1
3
Rotating 6 LED on Fast
8
1
4
Rotating 3 LED on Slow
9
1
5
Rotating 6 LED on Slow
6
1
6
Double strike strobe 1 Hz
9
1
7
Single strike strobe 2 Hz
3
1
8
Double strike strobe 2 Hz
3
1
9
Alternate side flash 1:1 2 Hz
3
1
PIN HEADER POSITIONS
Pattern No. 1
Pattern No. 2
Pattern No. 3
Pattern No. 4
Pattern No. 5
Pattern No. 6
Pattern No. 7
Pattern No. 8
Pattern No. 9
Pattern Selection
Pin Headers
P
C
B
E
dge
BExBGL1D DC LED Beacon Wiring
S3
S2
Stage 3
Stage 2
+
-
-
+
+
-
S2
S3
S3
S2
C
-
+
BExBGL1D AC LED Beacon Wiring
S3
S2
Stage 3
Stage 2
L
N
C
C
N
L
L N
C S2
S3
S3
S2
C
N
L
