
IC485SI Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $62.43 | Condition is New, Aten IC-485SI New NFP, shipping cost = $49.35 | 99.6% |
![]() | $134.95 | Condition is New, Aten - IC485SI - ATEN IC485SI RS-232/RS-485 Interface Converter - 1.20 km -, shipping cost = $15.40 | 99.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $12.71 | Top Pick! Condition is Used, Aten IC-0855 RS-232 to RS485 Converter W / 29-0881-01 Plug, FREE SHIPPING | 99.2% |
![]() | $39.00 | Condition is Used, ATEN IC-485SI RS232 RS485 CONVERTER ADAPTER + POWER SUPPLY, shipping cost = $15.00 | 99.6% |
![]() | $18.31 | Condition is Used, ATEN RS232 RS485 Converter IC-485SI, shipping cost = $70.24 | 99.6% |
![]() | $94.05 | Top Pick! Condition is Used, ATEN IC-485SI RS-232 TO RS-485 INTERFACE CONVERTER IC-485S/IC-485SI, FREE SHIPPING | 99.2% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $126.71 | Top Pick! Condition is Neu, ATEN IC485SI Serial Adapter RS-232 RS-422/485 D , shipping cost = $63.94 | 99.7% |
![]() | $137.18 | Condition is Neu, Aten IC485SI-AT-GG RS232 - DB-25 Female RS-485 422 Four Terminal Block, RJ1 E , shipping cost = $52.31 | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $104.92 | Condition is Gebraucht, ATEN RS232-RS485 CONVERTER IC-485S/IC-485SI IC-Q85SI, shipping cost = $58.13 | 100.0% |

The Aten IC485SI is a versatile and reliable RS-232 to RS-485/RS-422 converter designed to facilitate communication between devices that use different serial communication protocols. This converter supports both half-duplex and full-duplex modes, ensuring compatibility with a wide range of industrial automation, building automation, and other control systems.
The IC485SI is equipped with an RS-232 DB9 female connector on one end and an RS-485/RS-422 DB15 connector on the other. The RS-485 interface supports a maximum cable length of up to 4000 feet (1219 meters) when using twisted pair shielded cables, making it suitable for long-distance communication applications. The RS-422 interface, on the other hand, supports a maximum cable length of up to 400 feet (121.9 meters) and is ideal for point-to-point high-speed data transfer.
This converter features automatic detection of the communication mode (RS-485 or RS-422) and automatic flow control (XON/XOFF or RTS/CTS), ensuring seamless integration into various systems. The IC485SI also supports data rates up to 10 Mbps, enabling fast and efficient data transfer.
The Aten IC485SI is built with industrial-grade components, ensuring high reliability and durability in harsh environments. It operates over a wide temperature range of -10 C to 70 C (14 F to 158 F), making it suitable for use in various industries, including manufacturing, transportation, and energy.
This converter is also equipped with overvoltage protection, short-circuit protection, and over-temperature protection, safeguarding the connected devices against potential damage. Additionally, the IC485SI is RoHS compliant, ensuring that it meets the strictest environmental standards.
In summary, the Aten IC485SI is a robust and versatile RS-232 to RS-485/RS-422 converter designed for industrial automation and control applications. Its long cable support, automatic detection, and various protection features make it a reliable and efficient solution for connecting devices with different serial communication protocols.
The Aten IC485SI is a versatile RS-232 to RS-485/RS-422 converter that enables communication between devices using different protocols. Here are some pros and cons that might help you make an informed decision about purchasing this converter:
Pros:1. Versatility: The IC485SI supports both RS-485 and RS-422 protocols, making it a suitable option for various applications.
2. Bi-directional communication: This converter supports bi-directional communication, allowing data to be transmitted and received in both directions.
3. Hardware flow control: The IC485SI provides hardware flow control, which can help ensure reliable data transmission.
4. Isolation: The converter offers galvanic isolation between the RS-232 and RS-485/RS-422 interfaces, which can help protect against electrical interference.
5. Compact size: The IC485SI is a compact device, making it easy to integrate into various systems.
Cons:1. Complex setup: Setting up the converter may require some technical expertise, especially when configuring the protocols and addressing.
2. Limited power supply: The IC485SI has a limited power supply capability, so it may not be suitable for powering devices via the converter.
3. Cost: The IC485SI is a more expensive option compared to other converters in the market.
In conclusion, the Aten IC485SI is a reliable and versatile RS-232 to RS-485/RS-422 converter that offers several advantages, including galvanic isolation, hardware flow control, and bi-directional communication. However, its complex setup and higher cost are potential drawbacks.
If you require a simple RS-232 to RS-485 converter and are not concerned about the additional features, there may be more cost-effective options available in the market. However, if you need the versatility and reliability that the IC485SI offers, it may be worth the investment.
Recommendation: If you require a reliable and versatile RS-232 to RS-485/RS-422 converter with galvanic isolation and hardware flow control, the Aten IC485SI is a good choice, despite its complex setup and higher cost. However, if you are on a tight budget and do not need these advanced features, consider looking for simpler and more affordable converters.
Details:
Safe packaging. Cable distance of up to 1200m 4000 ft. Free technical support, for all products. It may vary, especially during peak holiday periods.
Fast processing. Signal and power isolation. Compact size. Four wire full duplex; two half duplex.
Our perks: great prices and, exclusive offers, every day. Data transmission controlled by the rats signal. BB express is built on a foundation of excellent service, dependable products, and efficient delivery. It supports point-to-point and multi point communication, simplex/duplex connections, is switchable between full duplex half duplex, dace date.
Os support: windows 20 PX. It needs no external power supply and is the most economical reliable option. Point to point, multi drop, and simplex/duplex link selection. IC485SI transfers data according to rats transfer requests signal control.
Shipping: our five star shipping service guarantee:: low cost. Supports baud rates up to 115.2 bps. Quick delivery. Dace/date delectable.
specifications vidioaudio:
- brand: Aten
- mpn: Ic485si
- type: Specialty A/v Product
- upc: 672792150432
returns vidioaudio:
- policy: returns accepted
- time: 30 days
- method: money back
- paid by: buyer
general vidioaudio:
- category: Electronics > Tv, Video Home Audio
offer vidioaudio:
- prices: $18.31–$137.18
- item condition:
- New
- Used
- Neu
- Gebraucht
- options: ship-to-home
- sold #: 12
- best offers: true
- started: november 17, 2025
- availability: in stock
payments vidioaudio:
- wallet: google-pay
- credit card: visa
- other
seller vidioaudio:
- # reviews: 83628
- city: foothill ranch, california
- rating: 99.2%
shipping vidioaudio:
- class: standard, expedited, one-day
- transit: 15-24 days
- service: fedex ground / fedex home delivery, fedex 2day, fedex standard overnight
- type: calculated
- carrier: fedex








