A 2-wire BUS SCS system and a conventional intercom may serve a similar purpose, but they do not necessarily share the same technology, functional wiring, or components.
Key differences
| Aspect | 2-wire BUS SCS | Conventional |
|---|---|---|
| Communication | BUS according to the manufacturer's specifications | Connections and signals depend on the system |
| Components | Equipment compatible with that BUS family | Equipment compatible with the conventional installation |
| Extensions | Depend on capacity, topology, and power supply | Depend on the existing wiring and configuration |
| Connected features | Available on certain equipment | May require upgrades or specific solutions |
There is no automatic compatibility
A component from one system must not be installed in another without checking the official wiring diagram. The fact that two devices use two wires does not mean they use the same protocol.
Can I reuse the wiring?
In some renovations, it may be possible to reuse existing cables, but this depends on their condition, cross-section, length, routing, and technical specifications. This is not universally guaranteed.
How to identify your installation
This page is a technology comparison, not an identification method. If you don't know which system you have, use the guide to identifying a Tegui installation and consult the official documentation before buying.