Are you thinking about adding a second monitor to your Tegui video intercom, or do you need to cover several apartments with the same system? This is one of the most frequent questions we receive from installers and users. The answer depends on the type of system you have installed. We explain it in detail.
What types of Tegui systems exist?
Before discussing limits, it is important to identify your system:
- 2-wire BUS SCS system: current Tegui/BTicino technology. Uses only 2 wires for everything (power, video, audio, and call).
- Conventional 4+N system: older installations with multiple wiring.
š Related article: 2-wire vs 4+N video intercom: differences and how to know which one you have
Tegui 2-wire system: how many monitors does it support?
The Tegui 2-wire BUS SCS system is the most flexible and scalable. In a standard installation:
| Configuration | Max. monitors per apartment | Max. apartments per panel |
|---|---|---|
| Standard panel (1 button) | 2 monitors | 1 apartment |
| Panel with expansion module | 2 monitors | Up to 8 apartments |
| System with control unit | Up to 4 monitors | Up to 99 apartments |
ā ļø Important: each additional monitor consumes current from the BUS. If you exceed the power supply capacity, the system may fail or restart. Always check your power supply's datasheet.
Conventional 4+N system: monitor limits
In conventional 4+N systems, the number of monitors is more limited by wiring and power supply:
- Usually, 1 main monitor and up to 1-2 secondary monitors (extensions) are allowed.
- Each extension requires additional wiring from the main monitor.
- The power supply must support the total system load.
Requirements to add a second monitor in a 2-wire system
If you want to expand your 2-wire installation with an additional monitor in the same apartment, you need:
- Check the power supply capacity: the standard Tegui model (Ref. 346050) supports a maximum load. If you already have several devices connected, an additional power supply may be necessary.
- Properly configure the N, P, and M jumpers on the new monitor to avoid conflicts with the existing one.
- Assign the same apartment number to both monitors so they ring simultaneously when receiving a call.
- Connect in parallel to the BUS, respecting the polarity of the 2 wires.
š Related article: Guide to configuring the N, P, and M jumpers on Tegui and BTicino monitors
What happens if I connect too many monitors?
Exceeding the monitor limit or the power supply capacity can cause:
- Spontaneous system restarts.
- Loss of image or audio on some monitors.
- Calls that do not reach all monitors.
- Power supply damage due to overload.
š Related article: Common mistakes in Tegui video door phone installation and how to avoid them
Tegui kits for multiple homes or monitors
If you need to cover several homes or install multiple monitors from scratch, Tegui offers complete kits that include an outdoor panel, monitors, and a properly sized power supply. It is the simplest and safest option to avoid compatibility problems.
In our store, you will find kits for 1 and 2 homes with 2-wire system, ready to install.
Frequently Asked Questions
Can I mix monitors of different Tegui models in the same system?
In general, yes, as long as all are compatible with the 2-wire BUS SCS system. However, it is recommended to use monitors from the same range to avoid configuration problems. Check the equivalence table if you have doubts.
š Related article: Intercom Equivalence Table | Complete Replacement Guide Tegui and BTicino
Can I add a WiFi monitor to a system with conventional monitors?
Yes. The Tegui Classe 100X16E WiFi monitor is compatible with the 2-wire system and can coexist with other conventional monitors of the same range. You only need to configure the jumpers correctly and check the power supply load.
How many monitors can a Sfera New panel manage?
The BTicino/Tegui Sfera New panel can manage up to 2 monitors per home in standard configuration. With expansion modules, the system can be extended to cover more homes while maintaining the limit of 2 monitors per unit.
Do I need a professional installer to add a monitor?
For simple installations (adding a second monitor in the same home), an installer experienced with Tegui systems can do it without difficulty. For more complex expansions (multiple homes, control units), it is recommended to have a specialized technician.
Conclusion
The number of monitors you can connect to your Tegui video door phone mainly depends on the type of system (2 wires or 4+N) and the capacity of your power supply. In 2-wire systems, it is usually up to 2 monitors per home, expandable with the appropriate accessories. Always plan the installation considering the total system load to avoid problems.
If you have questions about your specific installation, you can consult us in our store and we will help you choose the right solution.