--- product_id: 228012302 title: "Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices" brand: "zopsc" price: "$20.22" currency: USD in_stock: true reviews_count: 1 category: "Zopsc" url: https://www.desertcart.us/products/228012302-zopsc-rs-232-to-rs-485-422-adapter-converter-cascadable store_origin: US region: United States of America --- # Voltage clamp circuit for surge protection Adaptive RS-232 to RS-485/422 conversion Cascadable up to 16-32 devices Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices **Brand:** zopsc **Price:** $20.22 **Availability:** ✅ In Stock ## Summary > 🔗 Connect smarter, scale faster—your gateway to seamless industrial communication! ## Quick Answers - **What is this?** Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices by zopsc - **How much does it cost?** $20.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/228012302-zopsc-rs-232-to-rs-485-422-adapter-converter-cascadable) ## Best For - zopsc enthusiasts ## Why This Product - Trusted zopsc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Scalable Network Expansion:** Supports cascading up to 16-32 devices, perfect for growing attendance and access control systems without hassle. - • **Ultra-Compact & Lightweight:** At just 33 grams, this sleek converter fits effortlessly into any setup, making it ideal for on-the-go professionals and tight spaces. - • **Robust Voltage Clamp Protection:** Built-in voltage clamp circuit safeguards your devices from electrical surges and spikes, ensuring reliable long-term operation. - • **Plug & Play Adaptive Connectivity:** No jumper switching needed—just connect and convert seamlessly across RS-232, RS-485, and RS-422 standards. - • **Versatile Industrial Compatibility:** Engineered for diverse applications—from attendance machines to automated banking and highway toll systems—future-proof your infrastructure. ## Overview This RS-232 to RS-485/422 adapter features adaptive plug-and-play conversion with no jumper switching, a built-in voltage clamp for surge protection, and supports cascading up to 32 devices. Compact and lightweight, it’s designed for versatile use in attendance, access control, industrial automation, and toll systems. ## Description Product description Zopsc RS-232 to 485/422 Adapter Converter Adapter Cascadable 16-32 Devices Converter for Attendance Machines RS485 passive interface converter, equipped with voltage clamp circuit, with anti- capability. Compared with similar passive products, this product can be used as RS-232 to RS-485 converter, Rs232 to RS-422 converter, and no jumper switching, just connect to the corresponding network connection mode, ie Can work adaptively. This product is compact and lightweight, easy to carry and easy to use. Feature 1. RS485 passive interface converter, equipped with voltage clamp circuit, with anti- capability. 2. Compared with similar passive products, this product can be used as RS-232 to RS-485 converter, Rs232 to RS-422 converter, and no jumper switching, just connect to the corresponding network connection mode, ie Can work adaptively. 3. The product is compatible with RS-232, RS-485, and RS-422 standards. Ability to convert single-ended RS-232 to balanced RS-485 or RS-422 differential . 4. Widely used in attendance machines, IC card systems, industrial automation control systems, access card control systems, parking systems, automated banking systems, bus toll collection systems, canteens for , highway toll station systems, etc. 5. This product is compact and lightweight, easy to carry and easy to use. Specification Item Type: Adapter Interface Features: The interface is compatible with EIA/TA RS232C and RS-485RS422 standards. Electrical Interface: RS-232 interface is DB9 hole type connection port (female head); RS4850Rs42 interface is DB9 pin type connection port (male head), which can be connected to the small board and easily routed through the six-position terminal on the small board. Medium: RS485 uses a pair of twisted pairs (can be shielded, recommended twisted pair characteristic impedance is 1209); RS-422 uses two pairs of twisted pairs (can be shielded, it is recommended that each pair of twisted pair characteristic impedance is 1209) Working Mode: RS-422 asynchronous full duplex; RS-485 asynchronous half duplex Rate: 300-115200b0s Distance: Approx. 0~800 Meters / 0-2625ft Size: Approx. 55 x 35 x 15mm / 2.2v1.4 x 0.6in Package List 1 x Adapter ## Features - RS485 passive interface converter, equipped with voltage clamp circuit, with anti- capability. - Compared with similar passive products, this product can be used as RS-232 to RS-485 converter, Rs232 to RS-422 converter, and no jumper switching, just connect to the corresponding network connection mode, ie Can work adaptively. - The product is compatible with RS-232, RS-485, and RS-422 standards. Ability to convert single-ended RS-232 to balanced RS-485 or RS-422 differential . - Widely used in attendance machines, IC card systems, industrial automation control systems, access card control systems, parking systems, automated banking systems, bus toll collection systems, canteens for sale, highway toll station systems, etc. - This product is compact and lightweight, easy to carry and easy to use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08DD5KY4B | | Best Sellers Rank | #1,327 in Serial Adapters #61,228 in Computer Cables & Interconnects | | Brand | Zopsc | | Color | default | | Connector Type | clamp | | Customer Reviews | 5.0 out of 5 stars 1 Review | | Finish | Finish | | Finish Type | Finish | | Input Voltage | 2.2 Volts | | Item Weight | 33 Grams | | Manufacturer | Zopsc | | Mfr Part Number | Zopsckcgo3wtysz | | Model Number | Zopsckcgo3wtysz | | Number of Ports | 2 | | Package Quantity | 1 | | Unit Count | 1.0 Count | ## Product Details - **Connector Type:** clamp - **Color:** default - **Brand:** Zopsc - **Finish Type:** Finish - **Item Weight:** 33 Grams ## Images ![Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices - Image 1](https://m.media-amazon.com/images/I/51yDzwoqdmL.jpg) ![Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices - Image 2](https://m.media-amazon.com/images/I/51OgPPBkL1L.jpg) ![Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices - Image 3](https://m.media-amazon.com/images/I/51nGIM7B2ZL.jpg) ![Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices - Image 4](https://m.media-amazon.com/images/I/51CjBA+1FoL.jpg) ![Zopsc RS-232 to RS-485/422 Adapter Converter, Cascadable, for Attendance Machines, Supports 16-32 Devices - Image 5](https://m.media-amazon.com/images/I/61EQg7TjbRL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by C***A on September 11, 2021* ## Frequently Bought Together - RS-232 To 485/422 Adapter Converter Adapter Cascadable 16-32 Devices Converter for Attendance Machines - DTECH RS232 to RS485 RS422 Serial Communication Data Converter Adapter Mini-Size --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/228012302-zopsc-rs-232-to-rs-485-422-adapter-converter-cascadable](https://www.desertcart.us/products/228012302-zopsc-rs-232-to-rs-485-422-adapter-converter-cascadable) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-11*