Dahua Technology DHI-VTO4202F-P-S2 2MP IP Outdoor Video Intercom - Manual (Page 14)

3
Ref Name Description
1 Tamper Switch
The VTO issues an alarm sound if it is removed from the
wall by force, and sends the alarm to the management
center.
2 Ports
Connect to power supply, electric control lock, solenoid
lock, and exit button.
3 Ethernet Port Connects unit to Ethernet network.
4 Cascade Connection Connection to another Intercom module.
Ports
Ref Name Ref Name
1 GND 8 EOC1 (2wires –(GND)
for a 2-wire camera module)
2 +12V_OUT 9 DOOR_BUTTON
3 RS-485_B 10 DOOR_FEEDBACK
4 RS-485_A 11 GND
5 ALARM_NO 12 DOOR_NC
6 ALARM_COM 13 DOOR_COM
7 EOC2 (2wires +(48V)
for a 2-wire camera module)
14 DOOR_NO