E2S BExS110D-SIL Instruction Manual page 4

12) S110 DC Wiring
A 4-way terminal block is provided on the DC Sounder. There
are 1-off +ve, 1-off -ve, 1-off stage 2 and 1-off stage 3
terminals in total.
12.1 Wiring Diagrams
Fig. 4a DC Simplified Block Diagram (Positive switching)
Fig. 4b DC Simplified Block Diagram (Negative switching)
12.2 Stage Switching
12.2.1 Units First Stage Tones
Stage one (S1) Operation
12.2.2 DC Units Second & Third Stage Tone
Selection
For units set up for –ve switching (default setting):
Stage two (S2) Operation
Stage three (S3) Operation
_______________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. D197-00-601-IS
Simply connect the supply
voltage to the + and -
supply terminals, (see fig.
5).
Power +ve and –ve, link a -
ve supply line to the S2
terminal.
Dip switch alters stage 2
tone.
Power +ve and –ve, link a -
ve supply line to the S3
terminal.
Dip switch alters stage 3
tone.
Issue F 16-06-17
For units set up for +ve switching (refer to 13.3):
Stage two (S2) Operation
Stage three (S3) Operation
Fig. 5 S110 DC Terminals
12.3 S110 Stage Switching Polarity (DC
Units Only)
The BExS110D DC 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. 6)
Fig. 6 Stage Switching Polarity
sales@e-2-s.com
www.e-2-s.com
Sheet 4 of 19
Power +ve and –ve, link a
+ve supply line to the S2
terminal.
Dip switch alters stage 2
tone.
Power +ve and –ve, link a
+ve supply line to the S3
terminal.
Dip switch alters stage 3
tone.
DIP Switch
Header Pin Location
Negative Switching Activated
Positive Switching Activated
Header Pin Location
Tel: +44 (0)208 743 8880
Fax: +44 (0)208 740 4200
Stage Headers
S2
S3
-
+
DC Terminals
-
+
-
+
(4)