Daikin CN_WIRED (A6) - FXTB12AXVJU Indoor PCB

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Hi,

I just (very nervously) measured my pinout as I bought wired accessories but do not have an S21 port. It seems to me that the connector CN_WIRED is the port for connecting accessories. There is also a UART port to the right that may be useful - but I haven't investigated this.

If anyone gets the wired controller or another S21 accessory (like ModBus or the wireless controller) on this FTXB model or PCB, please share!

Here's the pinout for CN_WIRED (A6) - (JST 5pin connector):

| +5V (Const) | TxD (14.7 kHz?) | GND (-) | RxD | +12V (Const) |
PIN 1 PIN 2 PIN 3 PIN 4 PIN 5

Here is a standard S21 Pinout:

| +5V (Const) | TxD | RxD | +12V (Const) | GND (-) |

The connector seems to have the same pins BUT the RXD is in the ground spot and the ground in the RxD spot (I've read blogs of people blowing up their equipment simply cutting the plug off without finding the pinout)

PCB Front:

PCB Back:

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