E2S BExH120D Instruction Manual - page 5
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European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH sales@e-2-s.com Tel: +44 (0)208 743 8880
www.e-2-s.com Fax: +44 (0)208 740 4200
Document No. D201-00-031-IS Issue 1 18-08-16 Sheet 5 of 7
13.2 Stage Switching
13.2.1 Units First Stage Tones
Stage one (S1) Operation
Simply connect the
supply voltage to the +
and - supply terminals,
(see fig. 6).
13.2.2 DC Units Second and Third Stage Tone
Selection
For units set up for –ve switching (default setting):
Stage two (S2) Operation
Power +ve and –ve, link
a -ve supply line to the
S2 terminal.
Header pins alters stage
2 tone.
Stage three (S3) Operation
Power +ve and –ve, link
a -ve supply line to the
S3 terminal.
Header pins alters stage
3 tone.
For units set up for +ve switching (refer to 13.3):
Stage two (S2) Operation
Power +ve and –ve, link
a +ve supply line to the
S2 terminal.
Header Pins alters stage
2 tone.
Stage three (S3) Operation
Power +ve and –ve, link
a +ve supply line to the
S3 terminal.
Header pins alters stage
3 tone.
+ -
2
3
S
to
p
1
23
S2
S3
Stop +ve
-v
e
Fig. 7 DC Terminals
13.3 Stage Switching Polarity (DC Units
Only)
The BExH120D DC hootronic sounders have the facility to
use either +ve or –ve switching to change the tone to the
second and third stages. Negative switching is the default
setting. For –ve switching connect the two headers on the
pcb to the left-hand (marked –ve) and centre pins. For +ve
switching connect the headers to the right hand (marked +ve)
and the centre pins. (Refer to Fig. 8)
+
- 2
3
S
to
p
1
23
S2
S3
Stop +v
e
-ve
Stage Headers Set for –ve Switching
Stage Headers Set for +ve Switching
Fig. 8 Stage Switching Polarity
13.3 Stop
Terminal
The user can remotely activate and deactivate the
BExH120D Hootronic DC sounder by switching a connection
from the “Stop” terminal to the –ve or +ve supply lines,
depending on which switching mode is being used +ve or –ve
(see above) whilst the unit is powered. To achieve the “tail
off” sound at switch off the unit must remain powered.
Sound Headers
+
C/-
S2
S3
Stop
Stage
Headers
C/-
C/-