RM220-122 Mic/Headphone/GPIO Module, 4 channels

Figure 37: RM220-122 Mic/Headphone/GPIO module, Connector Chart.
Figure 38: RM220-122 Mic/Headphone/GPIO module, Wiring Example 1.
Figure 39: RM220-122 Mic/Headphone/GPIO module, Wiring Example 2.