E2S E2xL15F, Instruction Manual, Page: 5 / 11

European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D209-00-101-IS Issue 1 20-08-22 Sheet 5 of 5
15W COM
25W COM
9.2 L25 PCBA Terminals
Fig. 6 L25 Line in Terminals
9.3 Line Monitoring (Line in Units Only)
On E2xL15 & E2xL25 loudspeakers, DC line monitoring can
be used if required. All Line in Loudspeakers have a blocking
diode fitted in their supply input lines. It should be noted that
each loudspeaker has a 1M ohm bleed resistor connected
across the blocking capacitor and this should be taken into
account when selecting the value of the end of line
monitoring resistance. The end of line monitoring resistor can
be connected across the terminals on the end of line unit. If
an end of line resistor is used it must have the following
values:
Min. Resistance Min. Power
70V
Line
3.9KΩ 0.5W
1KΩ 2W
100V
Line
15KΩ 0.5W
3.9KΩ 2W
The resistor must be connected directly across the terminals.
Whilst keeping its leads as short as possible, a spacing of at
least 1/16” (1.58mm) must be provided through air and over
surfaces between uninsulated live parts.
10. Low Impedance Wiring
10.1 L15 Low Impedance
A 4-way terminal block is provided on the Low Impedance
Loudspeakers. There are 2-off Common and 2-off 15W/25W
terminals in total.
For further detail, refer to schematic document D209-06-101
Fig. 8 L15 Low Impedance Terminals
10.2 L25 Low Impedance
Fig. 10 L25 Low Impedance Terminals
11. Maintenance, Overhaul & Repair
Maintenance, repair and overhaul of the equipment should
only be carried out by suitably qualified personnel in
accordance with the current relevant standards:
EN60079-19
IEC60079-19 Explosive atmospheres - Equipment repair,
overhaul and reclamation
EN 60079-17
IEC60079-17 Explosive atmospheres - Electrical
installations inspection and maintenance
To avoid a possible ELECTROSTACTIC CHARGE the unit
must only be cleaned with a damp cloth.
Units must not be opened while an explosive atmosphere is
present.
If opening the unit during maintenance operations a clean
environment must be maintained and any dust layer removed
prior to opening the unit.
2W 6W 12.5W 25W C