A 4510B • Yearly Programmable School Bell / Announcement Timer
The Micro SD card supplied, stores all the MP3 files and timing event programs. The prebell and music outputs can be setup for random play of MP3 files for “Call to Class” playback of music.
When a timing event is activated, an MP3 audio file will be played and output through the dual RCA line level output. There are 99 audio playback options for the timing events, which include the Bell, Prebell, Music and outputs 5-99. A Micro SD card which is supplied, houses all the MP3 files to be played as well as storing all the timing events (Note: The audio files must be in MP3 format). The Prebell, Music and outputs 5-99 can be setup for random play of MP3 files, making the unit ideal for “Call to Class” playback of music which changes each time these outputs are activated.
The events when activated also trigger the 24V outputs available on the rear of the unit. Separate 24V DC outputs are available for each of the Prebell, Bell and Music outputs, as well as a common 24V DC output which is activated for all output conditions.
The timing events can also be programmed to trigger the Bell 24V out (and in turn the common 24V Out), with no audio output for activating an external bell or siren.
The unit features “Daylight Savings” mode which when activated automatically adjusts the clock time by one hour at the user programmed dates.
The internal clock has a battery backup (CR2032 supplied) in case of power failure. (Note: This will only backup the time, it will not power the unit in the event of a power failure).
Box Contents
A 4510B Yearly School Timer
Micro SD card
24V 1.5A DC Plugpack
Instruction Booklet
Programming Booklet
Key Features:
- MP3 audio format for Bell, Prebell and Music timing outputs
- Random play of audio files for Prebell and Music activations
- Easy Windows based software timing event setup
- Daylight savings mode
- Local push button operation of Bell
- Switched 24VDC output for Bell, Prebell, Music and relay only (No audio) output activations
- Bell trigger for remote activation of the bell
- Pluggable screw terminal connections
- Auxiliary level output
- Battery backup of current time
- 24V DC operation
- Standard 2U 19” rack mount case
- Suitable for any amplifier with an auxiliary input
Developed, designed & assembled in Australia.
Since 1974 Redback PA products have been manufactured in Perth, Western Australia by Altronics. With over 50 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support.
Backed by an industry leading 10 Year Manufacturer Warranty.
Our Redback products have a long tried and tested history of bulletproof reliability. Altronics offers a 10 Year Warranty on all Australian Made Redback products. Our local in-house service department has all the know how to answer technical queries and provide timely service.
Distortion:0.01%
Frequency Response: 140Hz – 20kHz
Output Connectors
Audio output: RCA Stereo Socket
Common 24V DC out: Screw Terminals
Pre Bell 24V DC out: Screw Terminals
Bell 24V DC out: Screw Terminals
Music 24V DC out: Screw Terminals
PLEASE NOTE: 24V DC Output loads limited to 0.12Amp each
Input Connectors
24V DC power: Screw Terminals
24V DC power: 2.1mm DC Jack
Bell trigger: Screw Terminals
Controls
Bell: Rear Volume
Prebell: Rear Volume
Music: Rear Volume
Power: On/Off Switch
Bell Switch: Push Switch
Isolate Switch: Push Switch
Indicators
Power on
MP3 error
MP3 file format: up to 320kbps, 44.1kHz, 32bit, VBR or CBR, Stereo (even better as mono).
Mechanical
Power Supply: 24V DC @ 1 Amp
Dimensions: ≈482W x 180D x 88H
Weight:≈2.8 kg