4CH Compact NVR Manual
52
Appendix A
1. Connection between a NVR and a RS-485 keyboard
Directly connect the keyboard to the NVR’s keyboard input using an RJ-45 cable. The NVR
provides 12V DC for the keyboard. There is no need to connect to your power adapter.
NVR & keyboard connection diagram
2. Connections between NVR and IP PTZ cameras
3. Alarm I/Os and RS-485 for PTZ
Pin 1
Alarm input 1
Pin 2
Alarm input 2
Pin 3
GND
Pin 4
ALARM NO (normal open)
Pin 5
ALARM NC (normal close)
Pin 6
COM
HD Output
HD Output
Содержание NVR404C
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