TOA S-02S – Buzzer/Yelp Alert Tone Module
TOA S-02S – Buzzer/Yelp Alert Tone Module is backordered and will ship as soon as it is back in stock.
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Product Overview
The TOA S-02S tone generator module adds built-in buzzer and yelp alert tones to a 900 Series audio system, making it a useful component for paging, signaling, and notification applications. This 900 Series plug-in module produces each tone through a separate switch closure, so a system can sound a steady buzzer for general alerts or a yelp tone for higher-urgency signaling. As a dedicated alert tone module, it gives integrators a simple way to generate attention-getting signals without external sources. A gain control sets the tone output to the right level for the system.
Product Description

The S-02S installs in a 900 Series module slot and is powered by the host frame's 24 V DC supply, keeping alert tones available directly within the rack. A switch closure across the module's terminals activates the buzzer tone, while a separate closure triggers the yelp tone, and each sounds continuously for the duration of the contact. This makes the module suitable for shift-change signals, end-of-period bells in schools, and attention tones ahead of spoken pages. The gain control adjusts the output from off up to a 0 dB reference so the alert sits at an appropriate level within the program mix. Connection is made through a removable 3-pole terminal block that simplifies wiring to relays, timers, or manual switches. Because it follows the 900 Series module format, the S-02S can be combined with microphone, line input, and signal-processing modules in the same frame. The result is a flexible, rack-based signaling source for paging and mass-notification systems in commercial and institutional facilities.
Key Features
- Buzzer and Yelp Tones — Two distinct alert tones cover general signaling and higher-urgency notification from a single module.
- Independent Switch Triggers — Separate terminal closures select the buzzer or yelp tone, allowing flexible integration with timers and relays.
- Continuous Activation — Each tone sounds for the full duration of its switch closure for predictable, controllable signaling.
- Adjustable Output Gain — The off-to-0 dB control sets the alert level so tones balance correctly against program audio.
- Removable Terminal Block — The pluggable 3-pole connector speeds wiring to switches, relays, and timers during installation.
- 900 Series Compatibility — The standard module format installs in compatible TOA 900 Series mixer/amplifiers and main frames.
Technical Specifications
| Specification | Value |
|---|---|
| Power Supply | 24 V DC (supplied from the main frame) |
| Current Consumption | 11 mA |
| Output Level | 1.0 V(p-p) (rated output -20 dB) |
| Noise Level | -100 dB (20 Hz – 20 kHz BPF) |
| Gain | Off – 0 dB |
| Available Tone | Buzzer/Yelp |
| Connector | Removable terminal block (3P) |
| Dimensions | 35 (W) x 78 (H) x 88 (D) mm |
| Weight | Max. 65 g |
Specifications per the TOA S-02S datasheet (toaelectronics.com).
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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