Federal Signal Corporation SelecTone 300VSC-1, SelecTone 300VSC-1044SB Installation And Maintenance Manual
Models 300VSC-1 and 300VSC-1044SB
SelecTone® Command Units
Model 300VSC-1044SB
®
Model 300VSC-1
Installation and Maintenance Manual
2561044F
Rev. F0 913
Printed in U.S.A.
Model MSB-1
français...............page 19
español...............página 37
Warranty – Seller warrants all goods for five years on parts and 2-1/2 years on labor, under the following
conditions and exceptions: Seller warrants that all goods of Seller’s manufacture will conform to any descriptions
thereof for specifications which are expressly made a part of this sales contract and at the time of sale by Seller
such goods shall be commercially free from defects in material or workmanship. Seller reserves the right at the
Seller’s discretion to “Repair and Return” or “Replace” any item deemed defective during the warranty period. This
warranty does not cover travel expenses, the cost of specialized equipment for gaining access to the product, or
labor charges for removal and reinstallation of the product. This warranty shall be ineffective and shall not apply
to goods that have been subjected to misuse, neglect, accident, damage, improper maintenance, or to goods
altered or repaired by anyone other than Seller or its authorized representative, or if five years have elapsed
from the date of shipment of the goods by Seller with the following exceptions: lamps and strobe tubes are not
covered under this warranty. Outdoor warning sirens and controllers manufactured by Federal Warning Systems
are warranteed for two years on parts and one year on labor. No agent, employee, representative or distributor
of Seller has any authority to bind the Seller to any representation, affirmation, or warranty concerning the goods
and any such representation, affirmation or warranty shall not be deemed to have become a part of the basics
of the sales contract and shall be unenforceable. THE FOREGOING WARRANTIES ARE EXCLUSIVE AND
IN LIEU OF ALL OTHER WARRANTIES OR MERCHANTABILITY, FITNESS FOR PURPOSE AND OF ANY
OTHER TYPE, WHETHER EXPRESS OR IMPLIED. These warranties shall not apply unless Seller shall be given
reasonable opportunity to investigate all claims for allegedly defective goods. Upon Seller’s instruction a sample
only of allegedly defective goods shall be returned to Seller for its inspection and approval. The basis of all claims
for alleged defects in the goods not discoverable upon reasonable inspection thereof pursuant to paragraph 8
hereof must be fully explained in writing and received by Seller within thirty days after Buyer learns of the defect
or such claim shall be deemed waived.
2645 Federal Signal Drive • University Park, IL 60484
Tel: 708-534-4756 • 877-289-3246. Fax: 708-534-4852
elp@fedsig.com • www.federalsignal-indust.com
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
2
• www.fs-isys.com
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Contents
Safety Message to Installers of Federal Signal Products ................................................................... 5
Unpacking the Product
An Overview of the Product
.......................................................................................................................... 5
.................................................................................................................. 5
Chassis Dimensions and Features ..................................................................................................................6
Front Panel Features
Control Circuitry Features
CANCEL Pushbutton
TEST Pushbutton
Power Requirements
Audio Inputs
Recommendation for the Signal Lines ............................................................................................... 10
..................................................................................................................................................7
......................................................................................................................................6
.............................................................................................................................7
....................................................................................................................................7
...........................................................................................................................................7
......................................................................................................................................7
Connecting Signal Lines ..............................................................................................................................11
Connecting to Remote Devices........................................................................................................... 11
Balanced Line Application ..........................................................................................................................11
Unbalanced Line Application
Connecting a Low-Level Audio Output
Connecting to Remote Switches for Tone Activation ....................................................................... 13
......................................................................................................................12
......................................................................................................12
Installing SelecTone Tone Modules ............................................................................................................. 13
Two Methods of Supplying Power to the SelecTone System ........................................................... 14
120 Vac 50/60 Hz Local Power ...................................................................................................................14
24 Vdc Central Power
Connecting Power to the SelecTone System ..................................................................................... 15
Safety Messages to Maintenance Personnel
Getting Replacement Parts.................................................................................................................. 16
Getting Repair Service or Technical Assistance
Returning a Product for Credit
Table 1 Product specications ............................................................................................................................8
Table 2 Replacement parts
..................................................................................................................................14
..................................................................................... 16
.............................................................................. 16
............................................................................................................ 17
Tables
...............................................................................................................................16
3
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Figures
Figure 1 Connections on the back of Model 300VSC .......................................................................................11
Figure 2 Model AM25CK connections (balanced line)
Figure 3 Model 300CK connections (unbalanced line)
Figure 4 Remote switch contacts for tone modules 1 through 4...................................................................... 13
Figure 5 Typical local power system
Figure 6 Typical central power system
................................................................................................................. 14
............................................................................................................ 15
..................................................................................... 12
.................................................................................... 12
SelecTone is a registered trademark of Federal Signal Corporation.
© 2013 Federal Signal Corporation. All rights reserved.
4
Installation and Maintenance Manual
Safety Message to Installers of Federal Signal Products
People’s lives depend on your proper installation and servicing of Federal Signal products. It is important to
read and follow all instructions shipped with this product. In addition, listed below are some other important
safety instructions and precautions you should follow:
• This device is to be installed by a trained electrician who is thoroughly familiar with the National
Electric Code and will follow the NEC guidelines as well as local codes.
• Consult the authority having jurisdiction in your area regarding the proper use and installation of this
product.
• The selection of the mounting location for the device, its controls and routing of the wiring is to be
accomplished under the direction of the Facilities Engineer and the Safety Engineer.
• Read and understand all instructions before installing or operating this equipment.
• Do not connect this unit to the system when power is on.
• Optimum sound distribution will be severely reduced if any objects are in front of the speaker. Ensure
that the front of the speaker is clear of obstructions.
• All effective warning speakers produce loud sounds which may cause, in certain situations, permanent
hearing loss. You should take appropriate precautions such as wearing hearing protection.
• After installation, test the sound system to ensure proper operation.
• Show these instructions to your Safety Engineer and then le them in a safe place and refer to them
when maintaining and/or reinstalling the unit.
• Establish a procedure to routinely check the sound system for proper activation and operation.
Failure to follow all safety precautions and instructions may result in property damage, serious injury, or death.
Unpacking the Product
After unpacking the product, examine it for damage that may have occurred in transit. If the 300VSC-1 or
the 300VSC-1044B has been damaged, do not attempt to install or operate it. File a claim immediately with
the carrier, stating the extent of the damage. Carefully check all envelopes, shipping labels, and tags before
removing or discarding them. Disposal of all shipping materials must be carried out in accordance with
national and local codes and standards. If any parts are missing, please call Federal Signal Customer Support
at 708-534-4756 or 877-289-3246.
An Overview of the Product
The Model 300VSC SelecTone® Command Unit is a central control device that is capable of generating up
to four different tone signals on a line that is connected to remote speaker/ampliers in a SelecTone System.
The 300VSC can control signal lines to Federal Signal Models 300GC, 300GCX, 300X, 302GC, 302GCX,
302X, and 50GC speaker/ampliers and to other devices designed to operate with a SelecTone system. It
can also control signals to speakers designed for 25 Vrms line operation. The 300VSC has a public address
(PA) function so that voice messages or instructions can be announced over the SelecTone system through
an optional Model MSB-1 or MNC-1 microphone. The unit can also be used to play background music
generated from an external source over the SelecTone system.
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
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Installation and Maintenance Manual
The Model MNC-1 microphone is a hand-held, noise canceling microphone that is ideal for use as a local
microphone. The Model MSB-1 microphone is a base-station type microphone designed for desktop
operation.
The Model 300VSC-1 is intended to be installed indoors on a desktop or other at surface.
The Model 300VSC-1044B is a rack-mountable unit complete with mounting hardware. It ts any standard
19-inch rack-mount cabinet.
The Model 300VSC can be used for a variety of prioritized signaling purposes, such as playing background
music, auxiliary re alarm, evacuation alarm, start and dismissal, paging, and other emergency warning
applications. The system can be automated if external devices such as heat detectors, switches or program
clocks are connected to the remote control inputs. Additional advantages of the Model 300VSC include
economical system expansion along with long-term system exibility.
The Model 300VSC generates and amplies tone and audio signals and applies them through signal lines
to the remote SelecTone devices in the system. The Model AM25CK Connector Kit is required in each
SelecTone device to connect the them to the signal line. Speakers designed for 25-volt operation can connect
directly to the 25-volt output. The 300VSC has provisions for up to four SelecTone tone modules of your
choice. The tones are designated as Tone 1, Tone 2, Tone 3, and Tone 4. Each tone can be manually activated
locally by its associated pushbutton switch on the front panel or by a contact closure at the associated remote
control input. Whenever a tone is activated, either locally or remotely, its associated front panel pushbutton
LED lights to indicate that the tone has been activated. The LED remains lit until the tone is deactivated and
the contact closure is removed. All 300VSC controls are located on the front panel.
Product details and features are described in the next sections. For complete product specications, see
Table 1 on pages 8 through 10.
Chassis Dimensions and Features
The Model 300VSC-1 is assembled in a black, brushed-aluminum, two-piece housing approximately
10.50 in (26.67 cm) wide by 9.25 in (23.50 cm) deep by 2.44 in (6.2 cm) high. It is intended to be placed
on any at horizontal surface, or it can be wall-mounted using the wall mounting brackets supplied in
the accessory kit. The housing is held together with four screws: two on the bottom near the front and
two at the back near the terminal blocks.
The Model 300VSC-1044SB is assembled in a three-piece aluminum housing. The housing is painted
black and is 19.0 in wide x 10.0 in deep and 3.5 in high. This unit is installed in a standard 19-inch rackmount cabinet.
Front Panel Features
The front panel switches are designated as TONE 1 through TONE 4, AUX, TEST, and CANCEL. The
tone corresponding to each switch can be labeled in the white area next to the switch with a permanent
felt-tip marker. If you are changing a tone or message, remove the marking by lightly rubbing it with a
rag dampened with denatured alcohol. To avoid damaging the switches, ensure that the alcohol does not
come in contact with them.
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Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Installation and Maintenance Manual
Control Circuitry Features
The control circuitry in the 300VSC has a built-in priority-level feature. If a given tone is already
sounding when a higher priority tone is locally or remotely activated, the higher priority tone
automatically overrides the lower priority tone. However, the pushbutton LED for the lower priority
tone remains lit to indicate that the lower priority tone remains activated. When the higher priority tone
is deactivated, the LED in the pushbutton turns off and the lower priority tone resumes sounding.
Pressing the CANCEL pushbutton deactivates any currently active tones. The local microphone has the
highest priority. All of the tones have priority by number sequence and all have priority over remote PA
and background music.
Because Tone 1 has priority over all tones, the TM9 “Slow Whoop” tone module is frequently installed
in the Tone 1 position as a “Fire” signal. Whenever the 300VSC is activated and is not in the Test Mode
(see "TEST Pushbutton" below), a built-in relay opens a set of normally closed contacts and closes a set
of normally open contacts, which makes it possible to send an alarm signal to other emergency services
or circuits. Check local codes for specic requirements regarding the types of tones to use.
CANCEL Pushbutton
The CANCEL pushbutton resets all the manually activated signaling functions of the 300VSC. It also
provides a momentary dry contact closure to facilitate remote resetting of any other alarm circuit. The
contact stays closed as long as the CANCEL pushbutton is pressed. Resetting of remote activation will
not occur if the closure occurring at the remote input has not been removed.
TEST Pushbutton
The TEST pushbutton enables the testing of tones without activating speakers on the unbalanced signal
lines. During the test the tone is heard only from the monitor speaker inside the enclosure. The TEST
pushbutton also cancels false alarms. Whenever the pushbutton is pressed, the LED remains illuminated
to remind the operator to press the CANCEL pushbutton after the test is completed or the false alarm is
corrected.
Power Requirements
SHOCK HAZARD — To prevent power to the 300VSC from being turned off
accidentally, it does not have a power switch and remains energized unless
power is disconnected. Before performing any installation or maintenance,
disconnect power to the 300VSC.
The front panel has a green LED to indicate the presence of primary power. The 300VSC can be
operated from either a 120 Vac or a 24 Vdc power source. The 120 Vac power is connected via the
power cord, and the 24 Vdc power connects via the rear terminals.
Audio Inputs
A microphone can be connected directly to the 300VSC through modular jacks provided in the front
of the 300VSC. The microphone has the highest priority. There are, however, screw terminals for a
low-level, low-impedance audio signal to be input in the back of the 300VSC. The terminals enable
audio to be coupled from a PBX telephone system with the proper interface equipment supplied by the
phone company. This input is designed to also enable the direct connection of a low-impedance remote
microphone with separate PTT, which has a priority below the tones. An RCA jack in the back of the
chassis accepts a standard 1-volt audio signal from a background music source such as a radio receiver,
CD player, or a tape player.
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
7
Installation and Maintenance Manual
Input Voltage 120 Vac, 50 Hz to 60 Hz
Standby Current 50 mA, 120 Vac
Operating Current 210 mA (max)
Power Consumption 26 W (max.)
Emergency Power Source Input
Input Voltage 22 Vdc to 32 Vdc
Standby Current 90 mA
Operating Current 760 mA
Local PA (use optional Model MSB-1 microphone)
Input Impedance 5 kΩ
Input Voltage 16 mVrms (max)
Remote Microphone
Input Impedance 5 kΩ
Input Voltage 16 mVrms (max)
Table 1 Product specications
Power Input
Audio Inputs
Auxiliary Input
Input Impedance 5 kΩ
Input Voltage 500 mVrms (max.)
Audio Outputs
Output Impedance
Unbalanced Signal Line 25 Ω (max.)
Unbalanced Signal Line, Standby 120 Ω
Balanced Signal Line 40 Ω (max.)
Low-Level Signal Line 600 Ω
Output Voltage Levels, No Load (< 3% THD)
Unbalanced Signal Line 9 Vrms
Balanced Signal Line 17 Vrms
Low-Level Signal Line 1 Vpp
Output Voltage Levels, Max. Load (< 3% THD)
Unbalanced Signal Line 8 Vrms (25 Ω load)
Balanced Signal Line 15 Vrms (40 Ω load)
Low-Level Signal Line 1 Vpp (600 Ω load)
8
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Installation and Maintenance Manual
Table 1 Product specications (continued
Output Voltage Levels, No Load (sq. wave)
Unbalanced Signal Line 12 Vrms
Balanced Signal Line 25 Vrms
Low-Level Signal Line 1 Vpp
Tone Output Levels Max. Load (sq. wave)
Unbalanced Signal Line 12 Vrms (25 Ω load)
Balanced Signal Line 20 Vrms (40 Ω load)
Low-Level Signal Line 0.56 Vrms (600 Ω load)
Audio Frequency Response, Balanced Signal Line
40 Ω Max. Load, from 250 Hz to 80 kHz
(Reference 1 kHz) -3 dB
40 Ω Max. Load, from 450 Hz to 60 kHz
(Reference 1 kHz) -1 dB
No Load, from 100 Hz to 90 kHz
(Reference 1 kHz) -3 dB
No Load, from 200 Hz to 60 kHz
(Reference 1 kHz) -1 dB
Signal to Noise Ratio (< 3% THD)
Local PA 60 dB
Remote Mic 40 dB
Aux. Input 80 dB
Audio Distortion from Aux. Input to Balanced Signal
Line Output (40 Ω Load) 2 %
Sound Level at 1 meter 65 dB
Type Dry contact closure
Line Impedance 100 Ω (max.)
Circuit Current 50 mA (max.) (12 Vdc)
Remote Microphone Activation Circuit (PTT)
Type Dry contact closure
Line Impedance 100 Ω (max.)
Circuit Current 10 mA (max.) (12 Vdc)
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Internal Speaker
Remote Tone Activation Circuit
9
Installation and Maintenance Manual
Table 1 Product specications (continued)
Remote Contact Closure Outputs
Tone 1, Tone 2, Tone 3, Tone 4, Sig. Out, Aux., Test and Cancel Relays
Type Dry contact closure
Rating 24 Vdc, 1 A, resistive
Signal to Noise Ratio (< 3% THD)
Local PA 60 dBA
Remote Mic 40 dBA
Aux Input 80 dBA
Audio Distortion From Aux Input to Balanced Signal
Line Output (40 Ω load) 2 %
F1 Type GMC-1, 1 A, 250 V
F2 Type GMC-1/2, 1/2 A, 250 V
Fuses
Dimensions and Weight
Model VSC-1
Weight
Dimensions (WDH)
Model VSC-1044SB
Weight
Dimensions (WDH)
4.125 lb (1.88 kg)
10.5 in x 9.25 in x 2.44 in
26.67 cm x 23.50 cm x 6.20
7.9 lb (3.58 kg)
19.0 in x 10.0 in x 3.5 in
48.26 cm x 24.40 cm 8.89 cm
Recommendation for the Signal Lines
REDUCED SOUND OUTPUT — If too small a diameter cable is used, unacceptable
signal voltage drop in the signal line will cause reduced sound output from the
remote signal device. Only use a cable having wire diameter greater than 22 AWG.
The signal lines transfer tone signals and verbal messages from the 300VSC to the remote SelecTone
devices. To reduce the possibility of cross talk, hum, and static-noise pickup, the signal lines must be
twisted-pair, shielded audio cable. In the majority of systems, use AWG 18 shielded twisted-pair audio
cables. Federal Signal does not recommend that new or existing telephone lines be used as signal lines in a
SelecTone system for the following reasons:
✓
Interference from other services or systems, or interference from the system to other services
✓ Cross talk, interference, or hum induced by other telephone lines
✓ Extended downtime because of the second party involvement required to service the lines
✓ The additional cost of installation, interfacing devices and monthly charges as opposed to a one-time
cost of performing the installation
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
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Installation and Maintenance Manual
SWITCHING DEVICES
PAIR SIGNAL LINES
Connecting Signal Lines
CROSSTALK/INTERFERENCE HAZARD — Mixing power lines with signal
lines can cause cross talk, interference, or hum in the signal lines, which
interferes with the emergency warning capability of this equipment. Do not
install power lines in the same conduit as signal lines.
SHOCK HAZARD — Do not install signal lines in the same conduit with power
lines. Avoid routing signal lines on cable trays with high voltage power lines.
See Figure 1. To connect the signal lines of the SelecTone system to the 300VSC, connect a colorcoded twisted pair of audio cables having conductors no smaller than 18 AWG to the TB1-4 and TB1-5
terminals on TB1. Every remote SelecTone signaling device in the system can be connected in parallel
or series to these lines.
For non-SelecTone 25 Vrms speakers, such as ceiling speakers, connect the signal lines directly to
TB1-4 and TB1-5 of terminal block TB1. Signal line losses must be considered when calculating how
many speakers can be connected to the 300VSC.
Figure 1 Connections on the back of Model 300VSC
TONE 1
TONE 2
TONE 3
TONE 4
AUX
N.O.
COM.
RESET
N.O.
COM.
GND
TONE 1
TONE 2
FROM EXTERNAL
TONE 3
TONE 4
MIC AUDIO IN
25 VRMS
SIG OUT
SIG COM.
SIG HI
SIG 1V
SIG
SIG
N.O.
COM.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
SHIELDED TWISTED
TEST
N.C.
N.O.
COM.
N.C.
N.O.
COM.
N.O.
COM.
N.O.
COM.
N.O.
COM.
TB1 TB2
PTT
MIC COM
24 VDC
-
+
AUX AUDIO IN
AUXPATONE
LEVEL CONTROLS
MIC
Connecting to Remote Devices
Install the remote SelecTone device(s) following the instructions included with the device.
Balanced Line Application
For 300GC, 300GCX, 300X, 302GC, 302GCX, 302X, or 50GC speakers, an AM25CK Connector Kit is
required for connection to the balanced signal output of the 300VSC. The AM25CK properly terminates
the balanced signal lines to the amplier in the 300GC, 300GCX, 300X, 302GC, 302GCX, 302X and
50GC. As shown in Figure 2 on page 12, connect the white input wires on the AM25CK to the terminals
TB1-4 and TB1-5 of terminal block TB1 on the 300VSC. The AM25CK and AM70CK Connector Kits
are NOT polarity sensitive, but you must observe polarity when placing speakers in close proximity to
each other.
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
11
Installation and Maintenance Manual
ON REAR OF 300VSC
290A7318
Figure 2 Model AM25CK connections (balanced line)
300GC
AM25CK
4 5
TERMINAL BLOCK (TB1)
300GC
AM25CK
SHIELDED TWISTED-PAIR
SIGNAL LINE TO ADDITIONAL
SELECTONES
For 25 Vrms line-operated speakers, connect them directly to the balanced signal output of the 300VSC.
Connect the speakers in parallel to terminals TB1-4 and TB1-5 of terminal block TB1 on the 300VSC.
Unlike the unbalanced line output, this output is not switched.
IMPORTANT: Use the balanced signal output only if there are no SelecTone system devices connected
to the unbalanced signal output (across TB1-1 and TB1-2).
Unbalanced Line Application
See Figure 3. For existing SelecTone systems using the 300CK Connector Kit, use the unbalanced signal
outputs on the 300VSC. A 300CK Connector Kit is required to connect a 300GC, 300GCX, 300X,
302GC, 302GCX, 302X or 50GC to the unbalanced signal lines. The 300CK properly terminates the
signal lines to the amplier in the 300GC, 300GCX, 300X, 302GC, 302GCX, 302X and 50GC. Connect
the blue wire on the 300CK to the SIG COM wire from the 300VSC. Connect the yellow wire on the
300CK to the SIG HI wire from the 300VSC.
Figure 3 Model 300CK connections (unbalanced line)
300GC
300CK
YEL BLU YEL BLU
1 2
COM SIG
TERMINAL BLOCK (TB1)
ON REAR OF 300VSC
HI
300GC
300CK
SHIELDED TWISTED-PAIR
SIGNAL LINE TO
ADDITIONAL SELECTONES
Connecting a Low-Level Audio Output
The 300VSC also has a 1-volt peak-to-peak audio output that can be coupled to the audio input of
another amplier. This low-level output is available across terminals TB1-1 and TB1-2. It can also be
connected to an analog ber optic transmitter so that audio can be transmitted over a ber-optic link in
an electrically noisy environment.
12
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Installation and Maintenance Manual
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2
GND
TONE 1
TONE 2
TONE 3
TONE 4
3 4 5 6 7 8 9 10 11 12 13 14 15 16
TB1 TB2
300VSC-1
TONE 2
REAR VIEW
(WITHOUT COVER)
TONE 4
TONE 1
TONE 3
TONE MODULES
OPTIONAL REMOTE SWITCH
CONTACTS
(CUSTOMER SUPPLIED)
S1
S2
S3
S4
Connecting to Remote Switches for Tone Activation
The 300VSC tones can be activated remotely by any normally open, low-current switch contacts with a
current capacity of at least 50 mA inductive. Figure 4 illustrates the connection of switch contacts to the
300VSC. The designations S1, S2, S3 and S4 represent remote switch contacts such as those found in ow
switches, program clocks, heat detectors, and smoke detectors. The remotely activated tone sounds as long as
the activating contacts remain closed.
Installing SelecTone Tone Modules
SHOCK HAZARD — Do not perform any installation or maintenance on this
system when power is on. Because the 300VSC 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.
See Figure 4. The 300VSC can accommodate up to four SelecTone tone modules of your choice. To
install the tone modules, insert them into the desired receptacles on the printed circuit board. The
receptacles for TONE 1 module and TONE 2 module are located on the motherboard. Receptacles for
TONE 3 module and TONE 4 modules are located on the card that plugs into the motherboard.
Figure 4 Remote switch contacts for tone modules 1 through 4
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
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Installation and Maintenance Manual
174 5 1 16
TB1
TB2
MODEL 300GC
MODEL 300VSC-1
MODEL AM25CK
SIGNAL LINES SHIELDED
TWISTED PAIR
120 Vac 120 Vac 120 Vac
LOCAL PWR. LOCAL PWR.
POWER LINES
120 Vac
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 next paragraphs describe each method along with the advantages and disadvantages.
120 Vac 50/60 Hz Local Power
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.
See Figure 5. 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, a
central power system as described below should be employed.
Figure 5 Typical local power system
24 Vdc Central Power
See Figure 6 on page 15. In the central power system, all of the remote amplier power lines are
connected in parallel to one or more centrally located power sources that are 24 Vdc.
The advantages of a central power system are:
✓
The entire system may be independent of local line voltage.
✓ The entire system can be switched to an emergency standby power source in the event of a power failure.
✓ The central power system has the added advantage that an auxiliary power supply, such as the
Federal Signal Model PS600 can be used to power the remote devices in the SelecTone system.
If the PS600 is used, it is not necessary to switch the power source if a power failure occurs.
The disadvantages of a central power system are:
✓
Heavy power lines are required from the power source to the remote devices in the system. The size
of the power lines is dependent upon the number of ampliers and the total distance of the power
loop in order to minimize the voltage drop while a tone signal is being generated.
Future expansion is limited by the current capacity of the power source and the power lines that
14
✓
✓
were initially installed.
Central power installations must comply with local electrical codes. Most power circuits are Class I
circuits. Therefore, conduit will probably be required. Installation costs are higher than a local
power system.
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Figure 6 Typical central power system
290A7326
POWER
LINES
MODEL 300GC
24 Vdc
MODEL AM25CK
SIGNAL LINES SHIELDED
TWISTED PAIR
NOT USED WITH MODEL PS600
24 Vdc
POWER SUPPLY
+
+––
54 17 1 1615
TB1
TB2
MODEL 300VSC-1
120 Vac
OUTPUT
Connecting Power to the SelecTone System
Installation and Maintenance Manual
Connect operating power to the 300VSC by inserting the plug end of the line cord into any standard 120 volt,
60 Hz outlet. The 300VSC is factory-set for 120 Vac 50/60 Hz operation.
If using 24 Vdc either as a primary or auxiliary source of power, connect the “+” terminal of 24 Vdc power
supply to the terminal TB2-15 (+24 Vdc) and “–” terminal of the 24 Vdc power supply to the terminal
TB2-16 (-24 Vdc) of the TB2 terminal block located in the back of 300VSC.
INSTALLATION PRECAUTION — This device is to be installed by a trained
electrician who is thoroughly familiar with the national electrical code and local
codes and will follow the guidelines.
SHOCK HAZARD — Do not perform any installation or maintenance on this
system when power is on. Because the 300VSC 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.
CROSSTALK/INTERFERENCE HAZARD — Cross talk, interference, or hum can be
induced in signal lines, causing poor audio output or confusing messages, which
interferes with the emergency warning capability of this equipment.
Do not install power lines in the same conduit as signal lines.
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
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Installation and Maintenance Manual
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Safety Messages to Maintenance Personnel
This device is to be serviced by a trained electrician who is thoroughly familiar with the National Electric
Code and will follow the NEC guidelines as well as local codes.
This service information is for qualied personnel only. To avoid electric shock, do not perform any servicing
other than changing fuses, unless qualied to do so. Refer all servicing to qualied service personnel.
Listed below are some important safety instructions and precautions you should follow:
• Read and understand all instructions before operating this system.
• Do not perform any maintenance on this system when power is on. Because the 300VSC does not have a
power switch, ensure that the power is disconnected before proceeding.
• Always insure that the power to the 300VSC is disconnected before removing the metal cover.
• Do not disconnect or connect this unit to the system when power is on.
• All effective warning speakers produce loud sounds which may cause, in certain situations, permanent
hearing loss. You should take appropriate precautions such as wearing hearing protection.
• After installation, test the sound system to ensure proper operation.
• Establish a procedure to routinely check the sound system for proper activation and operation.
Failure to follow all safety precautions and instructions may result in property damage, serious injury, or death.
Getting Replacement Parts
Typical replacement parts are listed below. To order the accessories and replacement parts in Table 2, please
call Federal Signal Customer Support at 708-534-4756 or 877-289-3246.
Table 2 Replacement parts
Description Part Number
Motherboard K2001154
Switch board (300VSC-1) K2001147
Tone card connector board K2001164
Connector plug, TB1, 17-position K140A332-17
Connector plug, TB2, 16-position K140A332-16
Getting Repair Service or Technical Assistance
Products returned for repair require a Return Authorization form from your local distributor or from
Federal Signal. To obtain repair service or technical assistance from Federal Signal, call 708-534-4756
or 877-289-3246. For instruction manuals and information on related products, visit:
http://www.federalsignal-indust.com.
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Installation and Maintenance Manual
Model 300VSC-1 and Model 300VSC-1044SB SelecTone Command Units
Returning a Product for Credit
Product returns for credit require a return authorization from your local distributor prior to returning the
product to Federal Signal. Please contact your distributor for assistance.
A product is qualied to be returned for credit when the following conditions are met:
• Product is resalable and in the original cartons
• Product has not been previously installed
• Product is the current revision
• Product has not been previously repaired
• Product is a standard product
• Product is not a service part
All returns are subject to a re-stock fee.
Defective products that are returned within the warranty period will be repaired or replaced at Federal
Signal’s sole discretion. Defective products do not include those products with lamp failure.
Circumstances other than those listed above will be addressed on a case-by-case basis.
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