Two-wire Data Control Bus
The
Each unit connected directly to the data bus, either CPU, camera head or OCP, is identified by a number. In order to ensure, for example, that OCP 1 controls the camera connected to CPU 1, the same unique number must be assigned to both OCP 1 and CPU 1. The assignment number is set internally on the units during installation.
The assignment number of a camera head connected to a CPU is automatically set to the number of the CPU to which it is connected. The number on the CPU, which is connected to the data bus, must be set to the number of the control panel that is to control it.
A camera connected directly to the data bus must have its assignment number set to the number set on the OCP that is to control it. It is important to set a unique number for each CPU/OCP or camera/OCP group as unpredictable control situations could arise otherwise.
The MCP is also connected to the data bus, however, it is not necessary to set an internal assignment number. The camera or cameras to be controlled are selected on the MCP front panel itself when operating the unit.
Note
A maximum of 15
Other Control Features
Private Data
A private data channel is also available between the camera and the CPU. This is a
Analogue Ch0-Ch1
Two analogue control channels are available from the CPU to the camera. These provide a control voltage from 0V to +5V that can be used for pan control for example. For more information on these channels refer to the Installation Manual.
Note
If the analogue Ch1 is used to switch externally the Aspect Ratio, Ch 1 is not available for analoque signals from the CPU to the camera.
Configurations | Operator's Manual LDK 23HS mkII - HS Camera System |