Comprehensive CE-HD330RS - Manual (Page 9)

5
PIN DEFINE TX/RX
1 N/C
2 TxD/RxD
3 RxD/TxD
4 N/C
5 GND
6 N/C
7 N/C
8 N/C
9 N/C
6.4 IR Cable Pin Assignment
3
1
3
1
2
2
Power 5 V
IR Blaster Signal
NC
IR Signal
Power 5 V
Grounding
IR Extender
IR Blaster