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DS-KH2230T Four-Wire Indoor Station User Manual
Chapter 1 Wiring Description of the Bundle
The system supports 3 typical applications. The pictures are shown as below.
Caution
Make sure all the related equipment is power-off during the wiring and installation.
Note
Up to 2 door stations and 3 indoor stations can be used in one video intercom system.
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Only 1 indoor station can be set as the main indoor station. If there are more than 1 indoor
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station in the system, the other 1 or 2 indoor stations will be set as extensions.
The door station and indoor station connect via the four-wire interface. Interface A and C are for
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channel 2 and B and D for channel 1.
Figure 1-1 Four-Wire Interface of Indoor Station
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