The GS-AO audio output interface board is a board that converts the GS-ADD switchable audio output interface RJ45 (crystal head) into a standard Φ3.5mm headphone jack.
The GS-AO audio output interface board provides a convenient way to convert the GS-ADD switchable audio output RJ45 connector to standard 3.3 mm headphone jacks. It is designed for users who need multiple headphone outputs from a single RJ45 source.
The board offers eight audio channels (four stereo pairs) routed through two RJ45 connectors. Each RJ45 uses a 1‑to‑1 pairing of twisted‑pair wires, with channels 1‑4 on the first connector and channels 5‑8 on the second. The RJ45 pins are mapped to the corresponding 3.3 mm jack contacts as shown in the wiring diagram. This manual is written in Chinese.
| Connector type | RJ45 (crystal head) |
|---|---|
| Headphone jack size | 3.3 mm |
The board uses an RJ45 (crystal head) connector with a 1‑to‑1 pairing of twisted pairs.