The IS543 from Alpha is a universal apartment intercom station that combines modern styling with ease of operation to provide natural, clear voice communication and positive door release operation. The white, high-impact, ABS plastic faceplate blends with any decor. The advanced circuitry and versatility permits use in large or small buildings, with one or several entrances. The patented* design of this station allows for connection to popular 5-wire, 4-wire or 3-wire intercom system configurations, with a single model station. In addition, the 2 vertical and 2 horizontal mounting holes allow the IS543 to mount over a single-gang electrical back box (or mounting ring) or over the Ih201 and/or Ih202 flush housing(s). This unit replaces at least 6 models of existing intercom stations! With the addition of the optional model AP543 adapter plate, you can now replace 9 existing stations. A wide variety of optional accessories is available to provide additional functions such as multiple entrance operation, post office door release, etc.
Alpha IS543 Intercom Features
- Surface mounting: Allows for flexible installation options over flush housing or directly on the wall.
- Simple, push button operation: Ensures ease of use for all residents and visitors.
- Easy installation: Designed for quick setup, minimizing installation time and effort.
- Patented design: Facilitates compatibility with 5-wire, 4-wire, or 3-wire systems, providing versatility and convenience.
- Clear voice-quality: Offers natural communication, enhancing interaction between residents and visitors.
- Precision-engineered for reliability: Built to last, ensuring consistent performance over time.
- English and international symbols: User-friendly design caters to diverse populations.
- Braille lettering: Enhances accessibility for visually impaired users, promoting inclusivity.
Alpha IS543 Detailed Specifications
| Model | IS543 |
| Material | High-impact ABS plastic |
| Mounting Options | Surface mount or mounts over flush housing |
| System Compatibility | 5-wire, 4-wire, or 3-wire intercom systems |
| Voice Quality | Clear and natural |
| Features | Push button operation, Braille lettering, international symbols |
| Replacement Capability | Replaces 6 existing models, 9 with AP543 adapter |
| Accessories | Variety of optional accessories available |



















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