| Audio Linking |
| Intercom Channels Connections |
| Monitoring |
| Program Input |
| Selectable Mode Operation |
| Selectable Termination Impedance |
| Status Indicators |
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| Audio Linking |
| Intercom Channels Connections |
| Monitoring |
| Program Input |
| Selectable Mode Operation |
| Selectable Termination Impedance |
| Status Indicators |