Wiring The Ex De Models; Figure 11 Connections For Dc Or Ac Ex De Loudspeaker - Federal Signal Global Serie Instrucciones De Instalación Y Mantenimiento

Installation and Maintenance Instructions

Wiring the Ex de Models

To wire the Ex de models:
1.
Unscrew the four M4 socket-head cap screws and remove the
terminal box cover.
2. Strip the wire insulation 8 mm to 9 mm (0.33 in).
NOTE:
lead, the connection into either side of any terminal must be
joined in a suitable manner, e.g. two conductors into a single
insulated crimped bootlace ferrule.
3.
The loudspeaker is factory-wired as 15 W. To change the
wattage tap setting it is necessary to modify the factory
wiring on the printed circuit board located inside the main
housing. Refer to "Wiring the Ex d Models" for information
on changing the tap settings. The line bushing is wired as
follows: (1) Audio +, (2) Audio -, (3) Earth.
4. Connect the audio + wire from the audio source to the
position marked

Figure 11 Connections for DC or AC Ex de loudspeaker

5.
Connect the audio - wire from the audio source to the position
marked
18
When using more than one single or multiple strand
Aud +
L1/+ L2/-
A
L1/+ L2/-
on the terminal block.
Aud-
Model G-SPK Global Series Loudspeaker
on the terminal block.
L3/Alt+ Aud+
L3/Alt+ Aud+
Aud-
A
Aud-