Somfy Universal RTS Interface II (URTSI II) 16 Channel (1810872)
Somfy Universal RTS Interface II (URTSI II) 16 Channel (1810872)
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URTSI II -- 16-channel interface bridging third-party automation to Somfy RTS
The URTSI II lets third-party automation systems drive Somfy RTS motorized shades, blinds, and awnings by converting RS232, RS485, and IR commands into RTS signals.
Benefits
- Converts RS232, RS485, and IR into RTS commands
- 16 channels per unit -- join up to 16 URTSI IIs for up to 256 channels
- Compatible with all Somfy RTS motors and receivers
Specifications
| Channels | 16 per unit (up to 256 networked) |
| Protocols | RS232, RS485, IR |
| Dimensions | 4.02" L x 2.99" W x 1.38" H |
| Radio Frequency | 433.420 MHz |
| Warranty | 5 years |
Compatible with: Control4, Crestron, Savant, and other RS232/RS485/IR-capable automation systems
Official Somfy documentation
Sold by ShadeMotorsDirect -- an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
Common questions
What does the URTSI II do?
Part 1810872 lets third-party automation systems control Somfy RTS motors. It converts RS232, RS485 and IR commands into RTS radio signals, so a Control4, Crestron, Savant or similar system can run your shades, blinds, draperies and awnings.
How many channels does it provide?
Each unit gives 16 channels of RTS control. You can link up to 16 URTSI II units for 256 channels in total, which covers large homes and commercial projects with many shade groups.
Which Somfy motors does it work with?
Somfy states it works with all RTS motors and receivers. That covers RTS awnings, exterior solar screens, interior blinds, draperies, shades, pergolas and rolling shutters, including motors such as the Sonesse 506S2 RTS 120V (1001809).
Which control protocols does it accept?
It accepts RS232 and RS485 serial commands as well as IR signals. Your automation system sends commands over one of these links, and the URTSI II transmits them as RTS radio commands on 433.420 MHz.
Who should install it?
Somfy recommends professional installation, since the URTSI II ties into a home or building automation system and each channel needs pairing with its motors. The unit carries Somfy's 5-year warranty.
Do I need a TaHoma hub as well?
A TaHoma hub is optional when an automation system drives the URTSI II. For app and voice control in a home without a third-party system, the Somfy TaHoma Switch (1871037) controls RTS motors by itself.
Couldn't load pickup availability
Replace a failed receiver or add Somfy radio control to new equipment.
123- 1Antenna Sends RTS commands to your shades.
- 2Test buttons Up, stop, down and prog for setup.
- 3Channel selector Picks which of the 16 channels you control.
Replacing one
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1
Note the wiring
Photograph the old receiver's connections, then cut power.
-
2
Swap it
Wire the Universal RTS Interface II the same way.
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3
Pair and test
Pair your remote or system to it and test each channel.
Tell us what you want to control. We'll confirm the right receiver before you order. Ask us
Starting new
-
1
Wire it
Connect it to power and to the device or system it controls.
-
2
Pair it
Pair your remote or system to it, the same way you add an RTS motor.
-
3
Test each channel
Run each channel and check the right device responds.
Planning a new install? Send us the window size and a photo. We'll build the parts list with you. Ask us
Somfy backs the Universal RTS Interface II for 5 years. We handle the claim.
Somfy warranty on the Universal RTS Interface II, part 1810872.
- What Somfy covers
- Defects in materials and workmanship, for 5 years from purchase.
- If it fails
- Email us your order number. We arrange the replacement with Somfy.
- Where it comes from
- ShadeMotorsDirect is an authorized Somfy distributor. You get the US version, new in Somfy packaging.
- Returns
- Unopened items in original packaging. Ask us for an RA number before you ship.
- Questions
- Call or chat, 8:00 AM - 7:30 PM ET.
How this motor compares
Verified Somfy specs for this motor and its closest alternatives.
| Specification | You're viewing
Somfy Universal RTS Interface II (URTSI II) 16 Channel (1810872)
| Somfy RTS Receiver for animeo IP (1822447) | 
Somfy RTS Receiver for SDN (1871471)
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Somfy Connect Universal Automation Interface (UAI) Plus (1870272)
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|---|---|---|---|---|
| Price | ||||
| Control | RS232/RS485/IR to RTS | RTS to SDN | RTS to SDN | IP / SDN 2.0 |
| Power | — | 24V DC via SDN bus | 24V DC via SDN bus | 12-24V DC |
| What's different | The product on this page | Same size, RTS to SDN control | Same size, RTS to SDN control | Same size, IP / SDN 2.0 control |
| Buy | Currently viewing | View details | View details | View details |
