E2S Warning Signals
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D191-00-621-IS
Issue 1
27-10-22
Sheet 6 of 15
The resistor must be connected directly across the +ve and
-ve terminals as shown in the following drawing. Form the
resistor legs as shown in Figure 5a, fit the resistor across the
two terminals, as shown in Figure 5b.
Figure 5a: End of Line Resistor Forming.
Figure 5b: End of Line Resistor Placement.
SIL2 line monitoring module product version: see section 21
for standard default values and product coding. See document
D191-06-621 for associated wiring diagram.
10) Earthing
The unit has an external and an internal earth terminal, (please
see Figure 6).
Internal earthing connections should be made to the internal
Earth terminal in the base of the housing using a ring crimped
terminal to secure the earth conductor under the earth clamp.
The earth conductor should be at least equal in size and rating
to the incoming power conductors.
External earthing connections should be made to the M5 earth
stud, using a ring crimp terminal to secure the earth conductor
to the earth stud. The external earth conductor should be at
least 4mm
”
in size.
Figure 6: Internal and External Earth Locations.
11) Settings
11.1
Flash Rate Setting
The D1xB2X beacon can produce different flash patterns as
shown in Table 3. The flash patterns are selected by operation
of the flash setting DIP switch on the PCB, Figure 7.
For SIL 2 operation, only the 1Hz Flash rate is approved.
DC Units
Figure 7: DIP Switch Location.
1=ON; 0=OFF
Example shown: 10 = Flashing 1.5Hz
(Default setting is 00 1Hz)
(
*
Setting permitted for use as private mode fire alarm device)
Switch
Setting
S1 Mode
SIL Approved
00
1Hz (60FPM)
Yes
01
1.33Hz (80FPM)
No
10
1.5Hz (90FPM)
No
11
Double Flash
No
Table 3: Switch Positions for Flash Patterns
End of Line
Resistor
Warning
–
high-intensity light source.
Avoid looking directly at the light source for
extended periods of time.
Internal Earth
Terminal
External Earth
Stud
