MASTER UNIT CONTROLS AND FEATURES
The illustration below shows the controls and features used to operate the MC111M or MC111DM Master Units.
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| 7 |
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| VOLUME |
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| DOOR TALK | |
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| MONITOR | DOOR | ROOM |
LO | HI LO | HI | LISTEN | TALK |
| SPEAKER | SYSTEM |
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| 4 | 5 |
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1. | Speaker/Microphone | 5. | Door Listen Switch |
2. | Speaker Volume | 6. | Room Talk Switch |
3. | System Volume | 7. | Door Talk (Press both buttons) |
4. Monitor Switch (Door Release on MC111DM)
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