7.3 Connect two or more domes to console

As the RS-485 supports multi-drop topology, two or more domes can be connected to one controller in a system. For such application, the following rules must be kept:

„All the speed domes should be connected to host in daisy chain pattern. Star type of configuration should be prohibited to avoid system instability.

„Each dome must have unique ID so communication data can be delivered to the correct target device.

„Impedance-match setup is also required to keep communication quality.

Connect the other end of the cable to a phone jack box with extension outlet of two. Installer must pay attention to the pins of the extension box to ensure the connection is correct.

To connect more cameras, copy the same procedure on above. You may continue extending the quantity of camera to its maximum number of 128 per network, if the control device has the capability of addressing that many ID..

Extension box

The extension wire and box are available in general electronic and phone shops.

.

.

User’s manual

35