---
product_id: 9922014
title: "Universal RTS Interface II, 16-Channel (1810872)"
brand: "somfy"
price: "KSh138026"
currency: KES
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.ke/products/9922014-universal-rts-interface-ii-16-channel-1810872
store_origin: KE
region: Kenya
---

# Universal RTS Interface II, 16-Channel (1810872)

**Brand:** somfy
**Price:** KSh138026
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Universal RTS Interface II, 16-Channel (1810872) by somfy
- **How much does it cost?** KSh138026 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/9922014-universal-rts-interface-ii-16-channel-1810872)

## Best For

- somfy enthusiasts

## Why This Product

- Trusted somfy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Full description not available

## Images

![Universal RTS Interface II, 16-Channel (1810872) - Image 1](https://m.media-amazon.com/images/I/31NWr1QGmsL.jpg)

## Questions & Answers

**Q: What is in box of a  Somfy Universal RTS Interface II, 16 Channel (1810872)?**
A: Hello Carlos,in the box I found the unit itself, the power adapter, the antenna and a db9-rj45 adapter for rs232.BestMario

**Q: does it work with Lutron RA2 system?**
A: It is programmed between the Lutron and Singh software. You can only add shade commands to keypad buttons

**Q: I have roller blinds with somfy motors and rf remotes.  can this device "learn" codes from the existing remotes, or must i reprogram the blinds?**
A: "Remotes" are the receivers of the signal from your handheld control devices. Each remote is located either in its blind tube or externally and controls the motor of the blind. These remotes can be controlled by the RTSI II independently of the handheld controls. So the programming of your existing handheld control devices stays the same. The RTSI II behaves like a second handheld control used in parallel. But do not try to move the blind up via handheld control and at the same time down by RTSI II.
The only thing you have to do is to setup the correct communication between the  RTSI II and the remotes: set the remote in programming mode (with a button at the remote) and let the RTSI II learn the communication to this remote. Do this for each remote. Then the RTSI II can send the commands it receives via RS232 or RS485 to the according remote. The RS232 commands always contain the number of the remote to send the request.

**Q: Will this work w amazon Alexa or SmartThings hub?**
A: Not without some other device to control it. It has a serial interface, either RS-232 or RS-485. Has no networking capabilities on its own

## Customer Reviews

### ⭐⭐⭐⭐⭐ It Works
*by K***L on January 11, 2017*

Neat. This works for us. We have hardwired shades and drapes operated via Somfy motors and controlled via their remote controller. We decided to integrate with our Control4 system which then integrated with Alexa. The Control4 and Alexa integration is still very new and therefore quite rought, but it works well for the most part (Alexa will say it can't get the drapes or shades to respond, but then it will immediately start working right after Alexa says this). Anyway, I might buy the $10 replacement antenna someone else mentioned in the reviews and see if tha thelps (we have very high ceilings and this thing sits in an electronic closet) and see if that improves performance. But otherwise it was straightforward. Also, Somfy customer service were very helpful to our home automation installers -- who were not the same as our drapes/shades installers -- so they did not even know what model Somfy motors were used.

### ⭐ One Star
*by F***S on October 1, 2015*

We cannot get it to work, even with help from the manufacturer, with our shades.

### ⭐⭐ Very poor transmitting power
*by S***R on May 4, 2014*

First of all, I seem to suffer from poor reception on all of my Somfy RTS motors, so take this review with a grain of salt, from a user who seems to have problems with the reliability of the entire product line. Maybe my office just has a lot of RF interference. I've fiddled with the antennas on the shades themselves to no avail.My basic setup is a 400sqft room with two Somfy RTS shades. I can control the shades with the Telis 4 remotes that came with them. I can control them with a somfy dry contact interface (which is basically a remote in a box with some wires soldered to the the buttons).I bought this very expensive interface for three reasons: 1) to control both shades from the same interface, 2) to control it via Ethernet with a GlobalCache iTach, and 3) in the hopes that this device with its external antenna would perform as good as, or even better than the dry contact interface with its dinky little PCB antenna.The device seems to utterly fail on requirement #3. I can set it right on top of the dry contact interface, and its signal cannot reach the RTS motors. It's ability to transmit appears to be significantly worse than the much cheaper and much smaller dry contact interface. I found this very surprising given the relative sizes of the antenna on this device compared to the dry contact interface. My only guess would be that the external antenna is there more for appearance than function, and degrades performance compared to the dry contact interface's PCB antenna. Maybe the engineers just got the design of the transmitter wrong.I've tried moving the device around the room and comparing it to the handheld remotes and observed the same behavior. Places where the handheld remotes work fine, this device experiences either intermittent reception or no reception at all.I'm going to try finding a somfy forum or emailing the manufacturer for some support. Maybe they can explain why I'm experiencing such poor overall reliability from the system as a whole and especially from this particular device.

## Frequently Bought Together

- somfy Universal RTS Interface II, 16-Channel (1810872)
- Somfy RTS Repeater - Extend Signal Range for RTS Blinds & Shades - Compatible with Situo, Telis, Tahoma, myLink - Easy Setup - #1810791

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-04*