SnapAV WPS-ACC-PTZ-CTRL, Руководство пользователя

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6
Connecting the Controller to Several Devices
Using the RS-485 interface, the PTZ controller can connect to an array of PTZ
cameras and DVRs.
For ease of use in a system that contains a single DVR and several PTZ cameras,
set the device ID of the DVR to 0. Set the device IDs of each attached PTZ
camera equal to the channel on the DVR that the camera is connected to. Set
the ID of the PTZ keyboard controller to a number that is larger than the number
of channels supported by the DVR.
Example: For an 8-channel DVR, set the DVR ID to 0, set the PTZ camera IDs
in the range of 1–8, and the PTZ keyboard controller to device ID 9. Using this
system prevents data transmission problems and makes it easy to remember
which device has which ID.
NOTE: The RS-485 interface can handle up to 32 individual devices. Thus a single
keyboard connected directly to the cameras can control up to 31 cameras.
You may insert up to 4 keyboards as long as the total number of devices does
not exceed 32. Remember that each device must have a unique ID.