--- product_id: 184091269 title: "DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A" brand: "suamdoen" price: "¥4060" currency: JPY in_stock: true reviews_count: 8 category: "Suamdoen" url: https://www.desertcart.jp/products/184091269-db9-serial-rs232-to-rj12-6p6c-adapter-cable-for-apc store_origin: JP region: Japan --- # 9600 bps stable data transfer DB9 to RJ12 6P6C adapter Compatible with APC PDUs & ATS DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A **Brand:** suamdoen **Price:** ¥4060 **Availability:** ✅ In Stock ## Summary > 🔗 Connect like a pro — never miss a byte in your data center! ## Quick Answers - **What is this?** DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A by suamdoen - **How much does it cost?** ¥4060 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/184091269-db9-serial-rs232-to-rj12-6p6c-adapter-cable-for-apc) ## Best For - suamdoen enthusiasts ## Why This Product - Trusted suamdoen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable 6-Foot Length:** Generous cable length for flexible installation in server rooms and data centers without clutter. - • **Plug & Play Simplicity:** Pre-configured port settings with default username prompt for quick setup—no hassle, just connect and control. - • **Precision Pinout Design:** Optimized pin connections (DB9 pins 2,3,5 to RJ12 pins 4,3,2) for guaranteed compatibility and performance. - • **Seamless APC Integration:** Perfectly engineered for APC Rack PDUs (AP78xx-AP89xx) and 2G Rack Automatic Transfer Switches, ensuring flawless connectivity. - • **Reliable Serial Communication:** Supports 9600 bps, 8 data bits, no parity, 1 stop bit for stable RS232 data transfer without interruptions. ## Overview The DB9 Serial RS232 to RJ12 6P6C Adapter Cable (model SM-103) by Suamdoen is a 6-foot male-to-female cable designed for seamless serial communication with APC Rack PDUs (AP78xx to AP89xx series) and 2G Rack Automatic Transfer Switches. Supporting a stable 9600 bps data transfer rate with standard RS232 settings, it ensures reliable connectivity in industrial automation and data center environments. Its precision pinout and plug-and-play setup make it an essential tool for professional network infrastructure management. ## Description DB9 serial to RJ12 6P6C RS232 adapter for APC PDU cable 940-0144A APC Rack PDU (AP78xx, AP79xx, AP86xx, AP88xx, AP89xx) and 2G Rack Automatic Transfer Switches (AP7752, AP7752, AP7730, AP7732, AP7721, AP7723) Compatible with APC part 940-0144A RJ11/​RJ12 to DB9. Compatible with Rack PDU (AP78xx, AP79xx, AP86xx, AP88xx, AP89xx) and 2G Rack Automatic Transfer Switches (AP7752, AP7752, AP7730, AP7732, AP7721, AP7723). APC part 940-0144A APC pins 1 and 6 are usually not connected Set 9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control to communicate. Apply the port settings to establish the connection. Press 3-5 times to display the username prompt. Use the default username and password of apc It is possible to use RJ11 plug that has only the middle 4 pins (2,3,4,5). connected APC pins 2,3, and 4 only and it workes perfect. Package: 1 x DB9 to RJ12 6P6C Serial Cable for APC PDU 940-0144A Review: Pinout Worked for RS232 - This cable worked for my use case. Pins: DB9 (9 Pins) -> RJ12 (6 Pins) (NC - No connection) 1 -> NC 2 -> 4 (RS232 RX) 3 -> 3 (RS232 TX) 4 -> NC 5 -> 2 (RS232 GND) 6 -> NC 7 -> NC 8 -> NC 9 -> NC Review: Received wrong cable - I have order the item RS232 to RJ12 and received the same but RJ11, it does not work for what I have ordered for. Seller has issued a refund after an explanation and I am happy with the service. ## Features - DB9 to RJ12/6P6C Serial Cable for APC PDU 940-0144A - DB9 serial to RJ12 RS232 to RJ12 adapter for APC PDU cable 940-0144A - APC Rack PDU (AP78xx, AP79xx, AP86xx, AP88xx, AP89xx) and 2G Rack Automatic Transfer Switches (AP7752, AP7752, AP7730, AP7732, AP7721, AP7723) - Set 9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control to communicate.Apply the port settings to establish the connection. Press 3-5 times to display the username prompt. Use the default username and password of apc - Lenth:6feet , Package: 1 x DB9 to RJ12 6P6C Serial Cable for APC PDU 940-0144A ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0836HX78K | | Best Sellers Rank | #141 in Serial Cables | | Brand | Suamdoen | | Brand Name | Suamdoen | | Cable Type | RJ12 | | Color | Black | | Compatible Devices | APC PDU (AP78xx, AP79xx, AP86xx, AP88xx, AP89xx) and 2G Rack Automatic Transfer Switches (AP7752, AP7752, AP7730, AP7732, AP7721, AP7723) Compatible Devices APC PDU (AP78xx, AP79xx, AP86xx, AP88xx, AP89xx) and 2G Rack Automatic Transfer Switches (AP7752, AP7752, AP7730, AP7732, AP7721, AP7723) See more | | Connector Gender | Male-to-Female | | Connector Type | Rj12 | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.4 out of 5 stars 62 Reviews | | Data Transfer Rate | 9600 Megabits Per Second | | Frequency | 9600 Hz | | Global Trade Identification Number | 73862674661200 | | Indoor Outdoor Usage | Indoor, Outdoor | | Item Shape | Round | | Item Weight | 0.06 Kilograms | | Manufacturer | Suamdoen | | Model | SM-103 | | Number of Items | 1 | | Number of Pins | 4, 9 | | Other Special Features of the Product | Data Transfer | | Part Number | SM-103 | | Recommended Uses For Product | [IN] Industrial automation, data centers, server rooms, network infrastructure | | Special Feature | Data Transfer | | UPC | 738626746612 | | Unit Count | 1 Count | ## Product Details - **Brand:** Suamdoen - **Connector Type:** Rj12 - **Cable Type:** RJ12 - **Compatible Devices:** APC PDU (AP78xx, AP79xx, AP86xx, AP88xx, AP89xx) and 2G Rack Automatic Transfer Switches (AP7752, AP7752, AP7730, AP7732, AP7721, AP7723) - **Special Feature:** Data Transfer ## Images ![DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A - Image 1](https://m.media-amazon.com/images/I/61O5s8eCgxL.jpg) ![DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A - Image 2](https://m.media-amazon.com/images/I/61oS1dLgozL.jpg) ![DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A - Image 3](https://m.media-amazon.com/images/I/610-nOiHC5L.jpg) ![DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A - Image 4](https://m.media-amazon.com/images/I/71TvSpRAw+L.jpg) ![DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A - Image 5](https://m.media-amazon.com/images/I/61vnU-GqG2L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Pinout Worked for RS232 *by C***R on May 19, 2023* This cable worked for my use case. Pins: DB9 (9 Pins) -> RJ12 (6 Pins) (NC - No connection) 1 -> NC 2 -> 4 (RS232 RX) 3 -> 3 (RS232 TX) 4 -> NC 5 -> 2 (RS232 GND) 6 -> NC 7 -> NC 8 -> NC 9 -> NC ### ⭐⭐⭐⭐ Received wrong cable *by T***E on June 4, 2023* I have order the item RS232 to RJ12 and received the same but RJ11, it does not work for what I have ordered for. Seller has issued a refund after an explanation and I am happy with the service. ### ⭐⭐⭐⭐⭐ Buena calidad *by M***O on April 24, 2026* Cumple muy vien su función ## Frequently Bought Together - DB9 Serial RS232 to RJ12 6P6C Adapter Cable for APC PDU 940-0144A - SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P) - OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… --- ## 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.jp/products/184091269-db9-serial-rs232-to-rj12-6p6c-adapter-cable-for-apc](https://www.desertcart.jp/products/184091269-db9-serial-rs232-to-rj12-6p6c-adapter-cable-for-apc) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-07*