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Description
FSR IT-R4S Relay ModuleASCII Relay Module Serial Loop through RS 232 Controllable The FSR IT R4S Relay Module is ideal for projection screen control, relay remote control, speaker muting or any environment where RS 232 control of switching via the 4 internal single pole, double throw relays is desired. "Daisy chain" capability allows connection of the IT R4S with additional modules to control other RS 232 devices. It is powered by a 12 VDC power supply (purchased
- ASCII Relay Module
- Serial Loop-through
- RS-232 Controllable
The FSR IT-R4S Relay Module is ideal for projection screen control, relay remote control, speaker muting or any environment where RS-232 control of switching via the 4 internal single-pole, double-throw relays is desired. "Daisy chain" capability allows connection of the IT-R4S with additional modules to control other RS-232 devices. It is powered by a 12 VDC power supply (purchased separately).
- Configurable for a variety of applications
- Can be easily reconfigured "on the fly"
- Small footprint
- Quick, easy setup
- Quick screw terminals
- Integral mounting plate
- Simple ASCII command set
- Units can be "daisy chained" through the serial loop port without sacrificing a port on the control system
- Relay Status and Power LED indicators
- RS-232 I/O Port Status LED Indicators
- Applications Include:
Shade and screen control (via relay interface)
Relay contact closure
Speaker muting
Relay remote control
In the Box
FSR IT-R4S Relay Module
- 1 Year Manufacturer's Warranty
| Maximum Switching Current | 5A (NO) /3A (NC) |
| Switching Capacity | NO: 1250VAC, 150 W (DC Resistive) NC: 750VAC, 90 W (DC Resistive) |
| Connectors | Screw Terminal |
| Control | RS-232 ASCII Protocol Serial looping via In/Out loop ports |
| Power Supply | 12 VDC @ 160mA (Not Included) |
| Dimensions (LxWxH) | 4.25 x 3.44 x 1.57" (10.8 x 8.7 x 4 cm) |
| Weight | 0.9 lbs (0.4 kg) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Perfect
Color: Blue, Size: Square
Just what I needed. The size is perfect as I didn’t want anything too large to place my watches and other accessories inside near the corner of my desk. Its size is essentially 7x7, and the design is sleek compared to other organizer holders. I got the color in blue and it looks stunning with the rest of my setup. I’m unsure about other reviewers, but mine came safely and the leather walls are decently thick, so it’s not too flimsy when buttoned together which holds very securely. There are hole spaces at the bottom corners once assembled, so if you have super small items such as beads or really small jewelry, they could potentially fall out, but most of my items are large enough that won’t be of concern. If you have a wire charger near by, the holes could be used to charge your smartphone inside, which has its own practical usage. Overall, I’d definitely recommend it if you’re on a lookout for a sleek but compact organizer holder, and I personally will consider getting another one in the future for myself for other household belongings.
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Reviewed in the United States on October 13, 2024
★★★★★ 5
Nice and Elegant.
Size: 7.7" x 7.7" x 1.7", Color: Black (Metal Glided), Size: 7.7" x 7.7" x 1.7", Color: Black (Metal Glided)
Color looks great, material is good quality and fits most of my items. It makes my items look neat and organized. Price is a bit high but worth it in my opinion.
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Reviewed in the United States on January 22, 2026
★★★★★ 5
Quite nice and very functional
Size: 7.7" x 7.7" x 1.7", Color: Grey (Metal Silvered), Size: 7.7" x 7.7" x 1.7", Color: Grey (Metal Silvered)
Elegant and substantial - this valet catch all for your night stand or dresser is quite nice and very sophisticated. Sleek and soft brushed suede like material. It was packed well, and is quite nice to keep miscellaneous items corralled together. I’m very pleased and would recommend.
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Reviewed in the United States on February 15, 2025
★★★★★ 5
Perfect size, high quality
Size: 7.7" x 7.7" x 1.7", Color: Black (Metal Silvered)
I had a previous catch all tray that I bought on amazon, it used buttons on the 4 corners to turn a flat cardboard into a tray. Over time, the catch all tray got filled up, not just with a wallet, keys and eyeglasses but eventually business cards and other knick knacks. With all the items inside the tray, sometimes the buttons would start to pop out. It wasn't awful, more of an annoyance. But it was time for me to find a more durable tray. I looked on amazon and added 6 different trays that had "potential" into my shopping cart. Then I carefully evaluated each one and deleted them out of my cart until there was only one left. Some had multiple compartments. Some were larger than this one. I felt the ones with compartments would limit my ability to put the things I want in there. Also, I didn't want it so big that it took up too much desk space. Ultimately, I felt this was the perfect size. I'm extremely happy with it, the quality is really nice and it looks and feels durable. No more loose buttons and spilled knick knacks.
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Reviewed in the United States on October 14, 2024
★★★★★ 5
Keeps clutter away
Size: 7.7" x 7.7" x 1.7", Color: Black (Metal Silvered)
This works great to corral all my notes I write on post its or small notes. Keeping them hidden from the desk top b/c or the depth but still visible to me. Much better than keeping on the plotter. Looks great in quality .
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Reviewed in the United States on October 25, 2025
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