HIKVISION DS-K3B220LX Series - Loudspeaker Board Terminal Description (Optional); Alarm Input Wiring

4.3.3 Loudspeaker Board Terminal Descripon (Oponal)
The loudspeaker board contains the sub-1G antenna interface, lane control board interface,
loudspeaker interface and debugging port.
Figure 4-5 Loudspeaker Board Terminal
4.3.4 Alarm Input Wiring
On the main lane control board, you can wire the re alarm input interface.
Figure 4-6 Remaining Open
DS-K3B220LX Series Swing Barrier
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