Dahua VTO2101E-P, Quick Start Manual

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2.1.2 Rear Panel
VTO2101E-P Figure 2-2
Table 2-2 Rear panel description
No. Name Description
1 Network port Connected to the network with network cables.
2 RS-485 ports See Figure 2-3 and Table 2-3.
3 Cable tray You can thread cables through the cable tray.
Cable connection Figure 2-3
Table 2-3 Port description
DOOR POWER/485
No. Name No. Name
1 NO 1 +12V
2 NC 2 GND
3 COM 3 RS-485A
4 ALARM IN 4 RS-485B
VTO3211D-P 2.2
2.2.1 Front Panel
Number of buttons on the front panel varies on different models. VTO3211D-P2 has two
buttons; VTO3211D-P4 has four buttons. VTO3211D-P4 will be taken as an example.
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