Federal Signal Corporation CommCenter D1 Series Manual
Model 300MB-SD
CommCenter Series D1
2561078I
Rev I2 1219
Printed in U.S.A.
Installation and Maintenance Manual
français...............page 21
español...............página 41
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
3
Model 300MB-SD CommCenter Series D1
Table of Contents
Safety Message to Installers of Federal Signal Products................................................................... 5
Unpacking the Product .......................................................................................................................... 5
An Overview of the Model 300MB......................................................................................................... 6
Chassis Description .......................................................................................................................................7
Input Configuration........................................................................................................................................7
Control Circuitry............................................................................................................................................8
Power Requirements ......................................................................................................................................8
Recommendation for the Signal Lines............................................................................................... 10
Connecting Signal Lines..............................................................................................................................11
Connecting to Remote Devices........................................................................................................... 11
Balanced Line Application ..........................................................................................................................11
Unbalanced Line Application ......................................................................................................................12
Connecting a Low-Level Audio Input .........................................................................................................12
Connecting a Low-Level Audio Output.......................................................................................................13
Typical Installations of the 300MB ...................................................................................................... 13
As a SelecTone Control Center....................................................................................................................13
As a Remote Microphone and Message Playback.......................................................................................14
Driving a 25 Vrms Speaker Line ................................................................................................................14
Interfacing with a Central Amplified System ..............................................................................................15
As a Typical Central Power System .............................................................................................................15
Connecting Power to the CommCenter System................................................................................ 16
For 120 Vac Operation .................................................................................................................................16
For 240 Vac Operation .................................................................................................................................16
For 24 Vdc Operation...................................................................................................................................16
Safety Messages to Maintenance Personnel..................................................................................... 17
Installing Storage Chips ...................................................................................................................... 17
Getting Replacement Parts.................................................................................................................. 19
Returning a Product for Service ......................................................................................................... 19
Getting Technical Support................................................................................................................... 19
Returning a Product for Credit............................................................................................................ 19
4Model 300MB-SD CommCenter Series D1
SelecTone is a registered trademark of Federal Signal Corporation.
© 2013 Federal Signal Corporation. All rights reserved.
Figures
Figure 1 Dimensions and mounting holes ..........................................................................................................6
Figure 2 Connections on the back of Model 300MB.........................................................................................11
Figure 3 Model AM25CK connections (balanced line)......................................................................................12
Figure 4 Model 300CK connections (unbalanced line).....................................................................................12
Figure 5 Cascading multiple units.....................................................................................................................13
Figure 6 CommCenter as a SelecTone control center......................................................................................13
Figure 7 Model 300MB with remote microphone and message playback ........................................................14
Figure 8 Model 300MB with 25 Vrms connections ...........................................................................................14
Figure 9 Model 300MB with central amplier connections ...............................................................................15
Figure 10 Typical central power system ...........................................................................................................15
Figure 11 Model 300MB motherboard ..............................................................................................................18
Tables
Table 1 Kit contents.............................................................................................................................................5
Table 2 Model 300MB Series D motherboard.....................................................................................................8
Table 3 Product specications ............................................................................................................................9
Table 4 Replacement parts ...............................................................................................................................19
5
Installation and Maintenance Manual
Model 300MB-SD CommCenter Series D1
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.
• 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 file 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 300MB 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.
Table 1 Kit contents
Qty. Description Part Number
1 Plug, 10-Position 140332-10
1 Plug, 17-Position 140332-17
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