European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D189-00-501-IS
Issue 11
20-08-22
Sheet 5 of 8
Stage three (S3) operation: Power L and N, link the common
(C) and S3 terminals.
Stage four (S4) operation: Power L and N, link the common
(C) and both the S2 and S3 terminals.
Strobe will continue to flash during alarm horn S2, S3 & S4
stages.
Fig. 5 AC Terminals
11) DC Wiring
11.1 DC Stage Polarity Control
The stage switches of the DC powered D2x units can be
activated via Positive (+ve) or Negative (-ve) switching. All
units are factory set to -ve switching as standard. If +ve
switching is required, the two wire links should be removed
from the ‘-’ positions of the stage polarity control terminals and
fitted to the ‘+‘ positions as shown in fig 6.
Fig. 6 Stage Polarity Control settings.
11.2 Units First Stage Tones
Stage one (S1) operation: Simply connect the supply voltage
to the + and - supply terminals, (see fig. 8). The Strobe is
powered via factory installed wires connected to the alarm
horn. The wires connecting the alarm horn and strobe can be
removed if the user wishes to power the strobe separately.
11.3 Second, Third and Fourth 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.
Stage three (S3) operation: Power +ve and –ve, link a -ve
supply line to the S3 terminal.
Stage four (S4) operation: Power +ve and –ve, link a -ve supply
line to both the S2 & S3 terminals.
Strobe will continue to flash during alarm horn S2, S3 & S4
stages.
For units set up for +ve switching (refer to 9.1):
Stage two (S2) operation: Power +ve and –ve, link a +ve supply
line to the S2 terminal.
Stage three (S3) operation: Power +ve and –ve, link a +ve
supply line to the S3 terminal.
Stage four (S4) operation: Power +ve and –ve, link a +ve supply
line to both the S2 & S3 terminals.
Strobe will continue to flash during alarm horn S2, S3 & S4
stages.
AC Strobe terminals
AC Alarm Horn terminals
Wire Links in ‘-‘ positions
for –ve switching
Wire Links in ‘+‘ positions
for +ve switching
