
INFORMACAST
POWERED BY CISCO
®
IP COMPLIANT LOUDSPEAKER SYSTEM
®
 POE NETWORK SWITCHES
I128SYS
I128SYS
(Front View)
FEATURES
• Use with Berbee InformaCast® software, Cisco® POE networks 
 & Cisco 
 messaging systems
• Highly efficient 10 oz dual cone loudspeaker system provides 94 dB 
 average SPL @ 1 W/1 M and is capable of 103 dB @ 1 meter via the  
 rated power of the internal IP addressable amplifier
• 105˚ dispersion in the 2 kHz octave band (-6 dB)
• Wide frequency response of 86Hz to 8kHz (-3 dB) is perfect for speech  
 and general messaging playback 
®
 IP Telephones to create extremely versatile paging and   
APPLICATIONS
The perfect choice for education, military/government, and large scale 
corporate applications, Berbee’s InformaCast IP Broadcasting Solution 
revolutionizes communication, clock/bell and message playback 
functionality. It provides the capability to simultaneously send a multicast 
audio stream and text messages to any combination of Cisco IP phones, 
Atlas Sound IP speakers, and PCs. With the push of a single button on 
the phone or a single click from a PC, a user can send a live, recorded, 
or scheduled broadcast to one or more paging groups. With InformaCast 
compliant loudspeaker products from Atlas Sound, system designers 
and integrators will have the ability to deploy extremely large scale and 
complex paging systems over new or existing Cisco networks with the 
convenience of centralized administration by IT personnel. 
Extreme cost savings can also be realized from the elimination of separate 
“stand alone” paging systems when InformaCast is utilized in education 
applications in conjunction with the model I128SYS speaker system.
One
I128SYS
(Back View)
GENERAL DESCRIPTION
Model I128SYS from Atlas Sound consists of a factory assembled 
loudspeaker/baffle with PCB amp/control board securely mounted to the 
rear of the baffle via concealed weld studs. The amp/control board is 
capable of producing 9 Watts RMS into the 8 
minimum power provided by Cisco IEEE 802.3AF compliant POE switches. 
(local 12-18VDC PSUs may also be used instead of POE switches). 
Interconnection is via a board mounted female RJ-45 connector. The 
industry standard C10A loudspeaker used in the I128SYS is a dual cone 
8” (205 mm) loudspeaker with a 10 oz (260 g) ceramic magnet. It includes 
a curvelinear paper cone for lower harmonic distortion. The loudspeaker 
is also equipped with a full 1" (25 mm) diameter copper voice coil with 
aluminum former for better heat dissipation. The 18-gauge construction of 
the metal baffle provides security and durability in commercial applications. 
The baffle is finished in neutral white electrostatic powder coat and is 
packaged with all necessary mounting screws. 
Specifications subject to change without notice
Ω
 loudspeaker with 9VDC 
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. 
TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
 © 2007 Atlas Sound LP  Printed in U.S.A.    ATS002967 RevA 11/07  SL1-3038
AtlasSound.com
57

ARCHITECT AND ENGINEER SPECIFICATIONS
Unit shall be Atlas Sound Model I128SYS. The loudspeaker system 
shall include factory assembled loudspeaker, IP addressable PCB 
amplifier/control/metal baffle and enclosures. The loudspeaker shall 
have a 10 oz (260 g) ceramic magnet and a seamless cone. Frequency 
response range shall be 86 Hz to 8 kHz (-3 dB). Sensitivity shall be 
94 dB average. Voice coil former shall be black anodized aluminum to 
help dissipate heat, have an impedance of 8 
1" (25 mm). The IP addressable PCB amplifier/control shall be 
mounted to the rear of the loudspeaker baffle via concealed weld 
Ω
 and a diameter of 
studs. The amplifier / control PCB shall be capable of producing 9 
Watts RMS with a minimum of 9VDC power provided either locally 
or via Cisco IEEE 802.3AF compliant POE switches. Interconnect 
shall be via female RJ-45 connector mounted to the PCB. All control 
functionality of the PCB amplifier shall be determined via software. The 
metal loudspeaker baffle overall dimensions shall be 11.94" (303 mm) 
wide by 23.67" (601 mm) tall. Baffle construction shall be of 18-gauge 
cold rolled steel. Finish shall be Atlas Sound neutral white electrostatic 
powder coat. Enclosure shall be included. 
Loudspeaker Specifications
Speaker Size 8" (203 mm)
Power Handling 15 W
Sensitivity (SPL @ 1 W/1 M)
Frequencey Response
Dispersion
Cone Material Treated Paper
Surround Material & Dampening Dampened self-storage
Flux Density 10,600 Gauss, 1.06 Tesla
Magnet Weight
Basket Material Stamped, Plated 20-gauge CRS
Voice Coil Diameter
Voice Coil Material
Voice Coil Former Material Black Anodized Aluminum
Voice Coil Winding Width
Top Plate Thickness
Weight
Diameter & Depth 8.125" (206 mm) Dia. & 2.875" (73 mm) D
Mounting Dimensions 7.625" (194 mm) Bolt Circle
1. Measured in reccomended enclosure
2. 3 dB down point, 2 kHz octave band
2
1
94 dB
86 Hz to 8 kHz
52.5˚
Nominal, 10 oz (260 g)
1" (25 mm)
Cooper
0.225 (6 mm)
.239 (96 mm)
32 oz (908 g)
Baffle Specifications
Baffle material
Speaker grille material 22 gauge perforated steel
Loudspeaker cut-out dimension 9.125" (232 mm) x 6.5" (175 mm)
Overall Width x Height 11.94" (303 mm) W x 23.67" (601 mm) H
Depth - Front of baffle to rear of enclosure
Color White
Amplifier/Controller Specifications
Power Rating 9W RMS into 8 Ω load with 9VDC in
Inputs RJ-45 female on PCB accessable from rear of baffle
Outputs 2 wire main ± terminated to loudspeaker
Power Source Cisco IEEE 802.3AF compliant POE network switches 
Dimensions 4.25" (108 mm) by 7.25" (184 mm)
Mounting 4 holes to weld studs on baffle (factory assembled)
Network Control Berbee Informacast on multicast enabled networks
local 12-18VDC PSU
18-gauge CRS
4.89" (124 mm)
Specifications subject to change without notice
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. 
TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
 © 2007 Atlas Sound LP  Printed in U.S.A.    ATS002967 RevA 11/07  SL1-3038
AtlasSound.com