Wiring diagram: 1 SFERA New exterior panel and 32 indoor units in 2 risers
This diagram shows the typical configuration of the Tegui 2-wire video intercom system for a building with 1 SFERA New street panel and 32 apartments distributed in 2 risers, using the BTicino 346841 floor splitter on each floor.
Main components of the diagram
| Component | Reference | Function | Installer price |
|---|---|---|---|
| Exterior panel | SFERA New (351500) | HQ 5MP camera + push buttons | View price |
| Floor splitter | 346841 | Distributes the BUS signal per floor | 32,13 € |
| Indoor monitors | Classe 100 / Series 8 | 1 per apartment (MASTER + optional SLAVE) | View kits |
👉 View product: Tegui 2-Wire Floor Splitter (BTicino 346841) — €32.13
How the 2-riser diagram works
In buildings with more than 16 apartments or with distribution in two staircases or entrances, the Tegui 2-wire system is organized into 2 independent risers, each with its own chain of floor splitters (ref. 346841). The exterior panel is unique and common to both risers.
- Left riser: apartments 1 to 16 (floors 1 to 8, 2 apartments per floor)
- Right riser: apartments 17 to 32 (floors 1 to 8, 2 apartments per floor)
- Each floor has a 346841 splitter that connects the 2 monitors on that floor to the BUS
- The splitters are chained in series along the riser
Jumper configuration — Attention!
⚠️ ATTENTION: Configure and insert the jumpers with the system POWERED OFF. If the configuration is changed while the system is running, power must be cut and restored to the system, waiting approximately 1 minute.
Additional notes on configuration:
- Optional actuator for additional function commands (e.g., stair lights, additional locks, various activations)
- Consult the device datasheet for connection and configuration
- For the exterior panel, SFERA panels with push-button call or digital call can be used interchangeably as main and secondary PE, and the Linea 5000 panel
- Move the DIN microswitch located on the back of the video intercom or doorman, which ends the section
MASTER / SLAVE Function
For the installation of alternative indoor units to those indicated in the diagrams, consult the “VARIANTS EXTERIOR PANELS” section.
The installation of Classe 300, Classe 300X with Netatmo, and Classe 300X video intercom indoor units in a home is done with the MASTER-SLAVE function:
- When a call arrives, the MASTER turns on and rings while the SLAVE only rings
- When answering from the SLAVE, the MASTER turns off and the SLAVE monitor turns on
- This allows having 2 monitors per home with coordinated behavior
Maximum system distances
| Configuration | Cable <0.2mm² | Triplexed | Cat.5 UTP |
|---|---|---|---|
| Board → Internal point (64 units) | 50 m | 140 m | 100 m |
| Board → Internal point (36 units) | 50 m | 140 m | 200 m |
| Board → Internal point (24 units) | 50 m | 142 m | 200 m |
| Board → Internal point (10 units) | 50 m | 140 m | 300 m |
Frequently Asked Questions (FAQ)
How many 346841 splitters do I need for 32 homes on 2 risers?
With 2 homes per floor and 8 floors per riser, you need 8 splitters per riser = 16 total 346841 splitters (one per floor on each riser).
Can I mix Classe 100 and Classe 300 monitors in the same system?
Yes, the Tegui 2-wire system is compatible with the entire range of monitors in the ecosystem: Classe 100, Classe 300, Classe 300X, Series 8, etc. Each home can have a different model.
What happens if there are more than 32 homes?
The system supports up to 98-100 calls depending on the electronic module of the board. For more homes, additional risers are added or extra push-button modules are used on the SFERA New board.
Is it necessary to terminate the last section of the BUS?
Yes. The DIN micro switch located on the back of the last video intercom or doorman of each section must be moved to properly terminate the BUS and avoid signal reflections.
Where to buy the 346841 floor splitter in Spain?
Available at tegui-distel.com, official Tegui distributor in Spain, with shipping throughout the Peninsula, Balearic Islands, and Portugal. See price of the 346841 splitter →
Related articles from the SFERA New cluster
- 👉 Complete Guide to the Tegui SFERA New System →
- 👉 Composition and Price Tables: from 3 to 40 homes →
- 👉 SFERA New Electronic Modules: 351500, 351000, and 351100 →
Do you have a project with multiple homes or a special configuration? Contact our technical team at tegui-distel.com and we will prepare a custom diagram for you.
