Installing Selectone Tone Modules; Two Methods Of Supplying Power To The Selectone System; 120 Vac 50/60 Hz Local Power System; Figure 8 Typical Local Power System - Federal Signal SelecTone 300SCW-1 Manuel D'installation Et D'entretien

Installing SelecTone Tone Modules

The 300SCW-1 can accommodate up to four SelecTone modules of your choice. To install the tone
modules, insert them into the corresponding receptacles on the printed circuit board. The receptacles
TONE 1
for module and
TONE 4
module and

Two Methods of Supplying Power to the SelecTone System

The two basic methods of supplying power to a SelecTone system are 120 Vac, 50/60 Hz local power and
24 Vdc central power. The following paragraphs describe each method along with the advantages and
disadvantages.

120 Vac 50/60 Hz Local Power System

See Figure 8. In this system, power is supplied to each remote SelecTone device by connecting it to a
120 Vac supply in the immediate vicinity of the device. If an emergency power source is required, use a
central power system as described in "24 Vdc Central Power System" on page 16.
MODEL 300SCW-1
4 5
TB1
SHOCK HAZARD — Do not perform any installation or maintenance on this
system when power is on. Because the 300SCW-1 does not have a power
switch, ensure that the power is disconnected before proceeding. Failure to
heed this warning may cause serious injury or death.
TONE 2
module are located on the motherboard. Receptacles for the
module are located on the card that plugs into the motherboard.
INSTALLATION PRECAUTION — Improper installation could render this
system inoperable, interfering with the warning nature of this product. The
installation must conform to applicable local and/or National Electrical codes.

Figure 8 Typical local power system

17 1 16
TB2
SIGNAL LINES SHIELDED
TWISTED PAIR
Model 300SCW-1 Wall-Mounted Command Unit
Installation and Maintenance Manual
AC POWER IN MODEL 300GC
MODEL AM25CK
120 Vac
LOCAL PWR.
TONE 3
POWER
LINES
120 Vac 120 Vac
LOCAL PWR.
290A7342
15