Federal Signal Corporation SelecTone 300SCW-1 Handbuch

2561090E

Rev. E0 913

Printed in U.S.A.

Installation and Maintenance Manual

Model 300SCW-1 SelecTone®

Wall-Mounted Command Unit

français...............page 19

español...............página 39

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

[email protected] • www.federalsignal-indust.com • www.fs-isys.com

Model 300SCW-1 Wall-Mounted Command Unit

Table of Contents

Safety Message to Installers of Federal Signal Products................................................................... 5

Unpacking the Product .......................................................................................................................... 5

An Overview of the Model 300SCW-1................................................................................................... 5

Chassis Description .......................................................................................................................................7

Front Panel Features ......................................................................................................................................7

Control Circuitry............................................................................................................................................7

TEST Pushbutton...........................................................................................................................................7

CANCEL Pushbutton ....................................................................................................................................8

Audio Inputs ..................................................................................................................................................8

Power Requirements......................................................................................................................................8

Recommendation for the Signal Lines............................................................................................... 11

Connecting Signal Lines of the SelecTone System to the 300SCW-1 ........................................................11

Connecting to Remote Devices........................................................................................................... 12

Balanced Line Application ..........................................................................................................................12

Unbalanced Line Application ......................................................................................................................13

Connecting a Low-Level Audio Output ......................................................................................................14

Connecting to Remote Switches for Tone Activation ....................................................................... 14

Installing SelecTone Tone Modules.............................................................................................................15

Two Methods of Supplying Power to the SelecTone System........................................................... 15

120 Vac 50/60 Hz Local Power System.......................................................................................................15

24 Vdc Central Power System.....................................................................................................................16

Connecting Power to the SelecTone System..................................................................................... 17

For 240 Vac Operation.................................................................................................................................17

For 24 Vdc Operation ..................................................................................................................................17

Safety Messages to Maintenance Personnel..................................................................................... 17

Getting Replacement Parts.................................................................................................................. 18

Getting Repair Service or Technical Assistance .............................................................................. 18

Returning a Product for Credit............................................................................................................ 18

Tables

Table 1 Product specications ............................................................................................................................8

Table 2 Replacement parts ...............................................................................................................................18

Model 300SCW-1 Wall-Mounted Command Unit

Figures

Figure 1 Model 300SCW-1 installation dimensions............................................................................................6

Figure 2 Connections on the back of Model 300SCW-1...................................................................................12

Figure 3 Model AM25CK connections (balanced line)......................................................................................12

Figure 4 25 Vrms connections..........................................................................................................................13

Figure 5 Model 300CK connections (unbalanced line).....................................................................................13

Figure 6 Low-level audio output connections ...................................................................................................14

Figure 7 Remote switch contacts for tone modules 1 through 4.......................................................................14

Figure 8 Typical local power system..................................................................................................................15

Figure 9 Typical central power system .............................................................................................................16

SelecTone is a registered trademark of Federal Signal Corporation.

Installation and Maintenance Manual

Model 300SCW-1 Wall-Mounted Command Unit 5

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. You

should ensure that the front of the speaker is clear of any 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.

• All effective warning speakers produce loud sounds, which may cause, in certain situations, permanent

hearing loss. The device should be installed far enough away from potential listeners to limit their

exposure while still maintaining its effectiveness. The OSHA Code of Federal Regulations 1910.95

Noise Standard provides guidelines, which may be used regarding permissible noise exposure levels.

• After installation, test the sound system to ensure proper operation.

• ShowtheseinstructionstoyourSafetyEngineerandalloperatingpersonnel,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 300SCW-1 has

been damaged, do not attempt to install or operate it. File a claim immediately with the carrier, stating the extent

of the damage. Disposal of all shipping materials must be carried out in accordance with national and local

codes and standards. Carefully check all envelopes, shipping labels, and tags before removing or discarding

them. If any parts are missing, please call Federal Signal Customer Support at 708-534-4756 or 877-289-3246.

An Overview of the Model 300SCW-1

The Model 300SCW-1 SelecTone® Command is a central control device that is capable of generating up

tofourdifferenttonesignalsonanaudiolinethatisconnectedtoremotespeaker/ampliersinaSelecTone

System. The 300SCW-1 can control signal lines to Federal Signal Models 300GC, 300GCX, 300X, 302GC,

302GCX,302X,and50GCspeaker/ampliersandtootherdevices.Itcanalsooperatewithstandard

Installation and Maintenance Manual

Model 300SCW-1 Wall-Mounted Command Unit

speakers designed for 25 Vrms line operation (15 W max.). The 300SCW-1 has public address (PA)

capability, allowing voice messages or instructions to be announced over the SelecTone system through an

optional Model MNC-1 microphone. The microphone is a handheld, noise-canceling microphone that is

ideal for use as a local microphone. The Command Unit can also play background music generated from an

external source over the SelecTone system.

The Model 300SCW-1 must be installed only in indoor (NEMA 1) or other protected installations. It can be

mounted on any horizontal surface using #10 screws, appropriate for the type of mounting surface material,

and the four mounting holes in the 300SCW-1 housing (see Figure 1).

Figure 1 Model 300SCW-1 installation dimensions

290A7336

2.09 in

5.31 cm

4.63 in

11.76 cm

2.77 in

7.04 cm

2.77 in

7.04 cm

7.72 in

19.61 cm

REAR VIEW

12.78 in

32.46 cm

KNOCK-OUT PROVISION

DIAMETER 0.87 in (2.21 cm) (3 PLACES)

ACCESS HOLE FOR

POTENTIOMETER

ADJUSTMENT

The Model 300SCW-1 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 300SCW-1

includeeconomicalsystemexpansionalongwithlong-termsystemexibility.

TheModel300SCW-1generatesandampliestoneandaudiosignalsandappliesthemthroughsignal

lines to the remote SelecTone devices in the system. A Model AM25CK Connector Kit is required in

each SelecTone device to connect the SelecTone devices to the signal line. Speakers designed for 25-volt

operation can connect directly to the 25-volt output. The 300SCW-1 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 control panel or by a contact closure

at the associated remote control input. Whenever a tone is activated, either locally or remotely, its associated

LED on the control panel pushbutton 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 300SCW-1 controls are located on the

control panel.

Installation and Maintenance Manual

Model 300SCW-1 Wall-Mounted Command Unit 7

Chassis Description

The Model 300SCW-1 is assembled in a red, powder-coated steel cabinet approximately that is 11.25 in

(28.57 cm) high by 16.23 in (41.22 cm) wide by 4.06 in (10.31 cm) deep with a hinged front cover.

The cover contains a window through which the pushbutton switches can be seen. The cover is secured

to the housing through a hinge and key-operated lock. Space is provided along the right side of the

enclosure for storage of the optional MNC-1 microphone.

Alongtheleftsideoftheenclosurearetwoeldwiringcompartmentsthatarebafedofffromthe

printed circuit board area. Access to these compartments is gained by removing the fastening screw from

the control panel, allowing it to open on a hinge. One compartment is for the connection of the Class II

power and signal lines, and the other is for the connection of the Class I power lines. These areas are

provided with knockouts to allow the external wiring to enter the unit through appropriate installer-

supplied bushings.

Front Panel Features

The printed circuit board (PCB) for the switches is attached to the control panel with four screws. A

wiring assembly connects the switchboard to the main PCB. The main PCB is attached to a subplate

with eight screws. The control 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.

Control Circuitry

The control circuitry in the 300SCW-1 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 lights, 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 other tones, the TM9 “Slow Whoop” tone module is frequently

installed in the Tone 1 position as a “Fire” signal. Whenever the 300SCW-1 is activated, and is not in

the test mode, a built-in relay causes a set of normally closed contacts to open and a set of normally

open contacts to close, which makes it possible to send an alarm signal to other emergency services or

circuits.Checkwithlocalcodesforspecicrequirementsregardingthetypesoftonestouse.

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.

Installation and Maintenance Manual

Model 300SCW-1 Wall-Mounted Command Unit

CANCEL Pushbutton

The CANCEL pushbutton resets all the manually activated signaling functions of the 300SCW-1. 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 depressed. Resetting of remote activation

does not occur if the closure occurring at the remote input has not been removed.

Audio Inputs

A microphone can be connected directly to the 300SCW-1 through two modular jacks provided on

the right side of the unit, inside the cover. These inputs have the highest priority. However, there are

screw terminal provisions for a low-level, low-impedance audio signal to be input in the Class II wiring

compartment of the unit, which allows audio to be coupled from a telephone system (PBX) with the

proper interface equipment supplied by the phone company. This input is designed to also allow the

direct connection of a low-impedance remote microphone with separate PTT, which has priority below

the tones. An RCA jack is provided in the same area of the unit to accept a standard 1-volt audio signal

from a background music source such as a radio receiver, CD player or a tape player.

Power Requirements

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.

The control panel has a green LED to indicate the presence of primary power. The 300SCW-1 can be

operated from either a 120 Vac, 240 Vac, or 24 Vdc power source. The AC power is connected via a

terminal block located in the Class I wiring compartment, and the 120/240 Vac operation must be manually

switched internally while 24 Vdc connects via the terminals in the Class II wiring compartment.

Table 1 Product specications

Power Input

Input Voltage 120/240 Vac, 50 Hz to 60 Hz

Standby Current 50 mA, 120 Vac

25 mA, 240 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

Audio Inputs

Local PA (use optional Model MSB-1 microphone)

Input Impedance 5 kΩ

Input Voltage 16 mVrms (max.)

Installation and Maintenance Manual

Model 300SCW-1 Wall-Mounted Command Unit 9

Table 1 Product specications (continued)

Remote Microphone

Input Impedance 5 kΩ

Input Voltage 16 mVrms (max.)

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 Ωload)

Balanced Signal Line 15 Vrms (40 Ωload)

Low-Level Signal Line 1 Vpp (600 Ωload)

Tone 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 Ωload)

Balanced Signal Line 20 Vrms (40 Ωload

Low-Level Signal Line 0.56 Vrms (600 Ωload)

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

Installation and Maintenance Manual

Model 300SCW-1 Wall-Mounted Command Unit

Table 1 Product specications (continued)

Signal to Noise Ratio (< 3 % THD)

Local PA 60 dB

Remote Microphone 40 dB

Auxiliary Input 80 dB

Audio Distortion from Auxiliary Input to Balanced Signal

Line Output (40 Ωload)2 %

Internal Speaker

Sound Level at 1 meter 65 dB

Remote Tone Activation Circuit

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)

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

Fuses

F1 Type GMC-1, 1 A, 250 V

F2 Type GMC-1/2, 1/2 A, 250 V

Physical Specications

Weight

Shipping 15.0 lb (6.8 kg)

Net 13.4 lb (6.1 kg)

Dimensions (HWD) 11.25 in x 16.23 in x 4.06 in

(28.57 cm x 41.22 cm x 10.31 cm)

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