Qyt Kt8900 Programming Cable Pinout Top Direct

[1] GND [2] TX [3] RX [6] +5V Locking tab up. Pin 1 left. Last updated: October 2025. Compatible with QYT KT8900, KT8900D, and KT8900R. For the KT-8W or KT-UV980, refer to a different pinout guide.

Searching for the exact "qyt kt8900 programming cable pinout top" usually means one thing: you have a cable that doesn’t work, you’re trying to build your own, or you need to verify which wire goes where inside that mysterious RJ-45 connector. This article will cover the official pinout, common wiring errors, how to test your cable, and why the "top" orientation matters when crimping or troubleshooting. Before diving into the pin numbers, let’s clarify the "top" reference. The QYT KT8900 uses an 8P8C (RJ-45) connector for programming, identical to an Ethernet plug. However, unlike network cables, the pinout is not T568A or T568B. qyt kt8900 programming cable pinout top

| Pin Number (Top view, tab up) | Signal | Wire Color (Typical in cheap cables) | Function | |-------------------------------|--------|--------------------------------------|-----------| | 1 | GND | Black or Bare Copper | Ground | | 2 | TX (Radio → PC) | White/Orange | Data from radio to computer | | 3 | RX (PC → Radio) | Orange | Data from computer to radio | | 4 | NC | Not connected | No connection | | 5 | NC | Not connected | No connection | | 6 | +5V (VCC) | Red | Power for USB-to-TTL converter | | 7 | NC | Not connected | No connection | | 8 | RTS (optional) | Blue or Green | Request to Send (rarely used) | [1] GND [2] TX [3] RX [6] +5V Locking tab up