If you have a Tegui Horizon phone installed and need to upgrade to a modern and compatible option, this guide is for you.
We explain how to identify your model, which replacements to use, and what to consider for an error-free installation.
What is the Tegui Horizon Model?
The Tegui Horizon phone was very popular in residential installations since 1977. Although discontinued, it is still present in many communities. It is recognized by its retro look, a single visible button, and different colored keys depending on the system:
- Black key: 4+N system with buzzer call (Ref. 0E7010)
- Green key: 4+N system with electronic call (Ref. 0E7020)
- White key: 4+N system with communication secrecy (Ref. 0E7030)
- Red key: 1+N system with electronic call (Ref. 0E7040 and 0E7050)
ā ļø In later models, all keys became white and were distinguished by colored stickers on the back.
Compatible Replacements for Tegui Horizon
Depending on the Horizon model you have installed, these are the currently compatible references:
| Original model | Call type | Current replacement | Notes |
|---|---|---|---|
| 0E7010 (Black) | 4+N Buzzer | T-71U (Ref. 374240) | Universal, simple |
| 0E7020 (Green) | 4+N Electronics | T-71U (Ref. 374240) or 374200 | Confirm call type |
| 0E7030 (White) | Buzzer + secrecy | T-71U (Ref. 374240) | Communication secrecy is lost. |
| 0E7040 (Red) | 1+N Electronics | T-75U (Ref. 374250) | Requires E-11C feeder |
š§ Check the feeder (E-10, E-11, etc.) before replacing with model 374250. If you have a classic E-11, it is not compatible.
How to Know Which Model You Have
- Look for the reference on the casing or back.
- Identify the button or sticker color.
- Check the installation system (1+N or 4+N).
- Note the components: handset, feeder, outdoor panel.
Steps to Replace a Tegui Horizon
1. System Identification
Check if the system is 4+N or 1+N, as each requires a different phone.
2. Feeder Compatibility
If you use a 1+N model (red button), confirm that the power supply is the E-11C (not the old E-11).
3. Select the new phone
Use the table above to choose the compatible replacement.
4. Check the connection
Note the cable layout before dismantling the Horizon. Then replicate it on the new one.
5. Configure if necessary
Some models (like the 374250) may require internal configuration.
Frequently Asked Questions (FAQs)
Can I replace a Horizon with a red button with the T-71U?
No. Models with a red button are 1+N system. The T-71U is only for 4+N systems.
If communication privacy is lost, does it matter much?
Not in small communities. If communication privacy is important (to prevent other neighbors from listening), consider changing the entire system.
Where can I buy compatible phones?
You can purchase them directly from our store: š T-71U Phone (Ref. 374240) at tegui-distel.com
Related resources
Conclusion
Replacing a Tegui Horizon phone is a simple process if you know your model and system. Thanks to current references like the T-71U or 374250, you can upgrade your installation without changing the entire system. If you have doubts, our technical team can help you choose the right option.
š If you want personalized assistance, contact us through our website or visit our specialized technical service.
What if I want to go a step further?
If you are looking for a more modern solution, consider upgrading to a WiFi video intercom system, like the Tegui Classe 100X16E.
This allows you to see who is calling from your mobile, even if you are not at home. Although this does require a system upgrade (especially if you are coming from a Horizon), it is an excellent long-term investment for single-family homes or communities looking to modernize.