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External Keypad Connection
02 connecting with other devices
The
Connect the DVR's RS485
•Turn the power off both units while connecting the
•Pay attention to the polarity of the RS485 connections.
•Refer to the
•When using a keypad device, please ensure that communication settings for both the DVR and the keypad device are the same. Communication settings mismatch can prevent the keypad device and the DVR from making normal communication. (Set communication protocols for both the keypad and the DVR as Half Duplex.)
•It’s not possible to connect a PTZ device and a keypad device
connecting with other devices _11