The Axis Q8721-E and Q8722-E are dual camera units. Each unit is a combination of two cameras. The Q8721-E unit has a Q1755 and Q1921 camera, and the Q8722-E unit has a Q1755 and a Q1922 camera. PTZ control must be enabled on the Q1755.
- From the Video task in Config Tool, select the Q1755 unit, and then click the Peripherals tab.
- Select the Serial (RS422/485) port.
In the Serial port properties dialog box enter the following
- Data bits
- Stop bits
- Baud rate
- RS485 2-wire
- Click Save.
- Click the Properties tab, and select the External pan tilt module connected option.
- Click Apply.
Make sure the Activate PTZ option is enabled on the Q1755
unit’s web page.
For more information about enabling this option, see your Axis documentation.