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DSD TECH SH-RJ12C USB to RJ12 6P4C RS232 Serial Cable for APC PDU ATS(5.9FT/1.8M)

4.4 (7) Write Review
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$12.99

$ 5 .99 $5.99

In Stock

About this item

  • DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100,000 customers in Europe, North America and Japan.
  • USB to RJ12/RJ11: RJ12 and RJ11 are the same on the physical interface. The difference is that RJ12 uses 6 data lines, while RJ11 uses 4 data lines.This cable leads to 4 signals: GND, TX, RX, GND.
  • Manage your APC PDU/ATS:When your APC PDU or ATS needs to be debugged or configured, you can use this USB to RJ12 Serial Cable to communicate with it.
  • Replacement for APC Part# 940-0144A. Suitable for the following APC models: AP77XX AP78XX AP79XX AP86XX AP88XX AP89XX.
  • Customer Support:DSD TECH offers a 1-year Replacement service and lifetime technical support for this APC PDU Serial Cable.If you meet any questions, Please contact us, We will fix your issue within 24 hours.


Product Description

sh-rj12c-1

Model:SH-RJ12C

Replaces APC 940-0144A, designed for configuring/debugging APC PDUs/ATS (e.g., AP78XX, AP79XX). RS232 protocol, PL2303GT chip, 1.8M length. Plug & play post-driver installation. Compatible with Windows, Linux, Mac. Pinout: GND, TX, RX, GND. Supports APC switched/metered units.

Broad Compatibility​

Replaces APC 940-0144A, supports APC PDUs/ATS models (AP78XX, AP79XX, etc.) and works with Windows, Linux, and Mac systems.

Plug-and-Play RS232 Communication

Features PL2303GT chip, RS232 protocol, and 1.8M cable for high-speed (1Mbps) debugging/configuring of APC units after one-time driver setup.

Multi-Device Support

Compatible with APC Automatic Transfer Switches, Metered/Switched Rack PDUs, and Metered-by-Outlet units across 40+ models.

Specification

​Model SH-RJ12C
​Main Chip PL2303GT
​Communication Protocol RS232
​Connectors USB Type A, RJ12/RJ11 (6P4C)
​Max Speed​ 1 Mbps
​Cable Length​ 1.8 Meters / 5.9 Feet
​Pin Definition​ GND, TX, RX, GND
​Line Sequence​ NULL, GND, TX, RX, GND, NULL (6P4C)
​Compatible Devices​ APC PDUs/ATS (AP78XX, AP79XX, AP86XX, AP88XX, AP89XX, etc.)
​Replaces APC Part​ #940-0144, #940-0144A
​Supported Systems​ Windows 7/8/10/11, Linux, macOS
​Driver Requirement​ Plug & Play after one-time driver installation
​Included​ 1 × SH-RJ12C Cable, 1 × User Manual

lorenzo
2025-08-31 16:43:24
Awesome product.
Customer
2025-08-01 16:16:28
This is a simple RS-232/USB-A interface that works exactly as described. Great length on cord. The LEDs on the usb dongle are helpful to see if the unit/port is passing traffic. Windows 11 automatically acquired the driver and I had no issue using it. Be sure to check the specific design you order so you have the right pinout on the RJ-11/12 you need, otherwise you will need to make an adapter. This has a decent chip in it, so it should last!
Dion Stuart Baker
2025-07-28 13:04:25
Does what it says on the tin
Tesh
2025-04-25 15:00:58
connected the battery to my laptop for programming with no issues.
りなっくま
2025-04-04 13:25:18
データ送信状況がひとめでわかるでようLEDランプが光るのがいいですね。問題なく通信できました。
Jennifer
2025-03-14 14:55:04
This adapter works with either the 6-pin RJ 12 standard (NC, GND, TXD, RXD, GND, NC) or with the common 4-pin RJ11 (GND, TXD, RXD, GND) modular jacks.It is handy for communication between your computer and PDU, or for DIY projects where you want to establish serial communications with a board via a compact RJ11/RJ12 modular connector.
Kunde
2025-02-13 16:50:27
The cable is working perfectly as a serial to usb cable to connect a pc to apc pdu