Device Ports - Dahua VTA2302A Quick Start Manual

Emergency call terminal
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1.2.3 Device Ports

No.
Name
1
MIC
2
Alarm input 1
3
Alarm input 2
4
Alarm output 1
5
Alarm output 2
Device ports
Table 1-3 Device ports description
No.
6
7
8
9
4
Name
Power input
RS-485
Reserved ports
Active speaker

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