AVer System Contrll Pro User Manual (NV version) - Manual (Page 22)

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2.1.3 Switching to 485 DVR Mode
When the System Controller is connecting with DVR system through the RS-485 port, the System
Controller mode should be in 485 DVR modes in order to operate the DVR system. If the mode is
not 485 DVR mode, please follow the below steps to switch to 485 DVR mode.
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- The default mode is USB DVR mode
- The USB CMS and 485 CMS mode is supported for CMS application.
- If System Controller is connecting with PTZ camera through RS485 port, please
refer to
Chapter 3 for operation description.
1. In main menu screen, press button to enter Controller setup screen.
2. Press button to enter Mode setup screen.
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If the password function is enabled, user needs to enter the password for mode
switching.
3. In Mode setup screen, press button to switch the mode to 485 DVR mode.