ADC Device Server v11.61.4
Installation, Configuration, and Operations Reference
Cloning
Cloning
Introduction to ADC Cloning
The ADC Device Server v11 application runs on a Device Server chassis consisting of a personal computer installed with automation cards, connectors, network cards, and other peripherals. The operating systems can be Windows 2000 and Windows XP. Via 422 serial port connectors, the ADC Device Server communicates with and controls up to 68 broadcasting devices. In case of hardware failure, the automation stops functioning.
Purchase Note: Cloning is a for-purchase option to Device Server. Contact your Automation
Sales representative for details.
Reference Note: For more information on Cloning operations reference the ADC Cloning
User Guide_Complete v8 document. For details on setting up the Cloning panel see the ADC
Hardware Control Panels Reference, Cloning panel section.
For some mission critical TV channels, it is desirable to have a back up ADC Device Server to take over automation control when the main device server fails. For this purpose, in hardware, a relay is used to switch the connection between one of the device servers and the broadcasting devices. The device server pair are called A and B. When A is switched to communicate with the broadcasting devices, for instance, it is called the “Main” device server, and B is called “Clone” device server, and vice versa. The relay has an affiliated cloning control panel for user settings, as illustrated below:
In software, a cloning feature is added to the ADC Device Server application when the
USECLONING compiler directive is defined. The feature has two basic functions.
One is to copy the device status, device storage, list contents, list status, and other state machines from the main device server application to the clone device server application.
The other is to dynamically maintain the synchronization by means of feedback close control looping.
With both hardware and software implementations, a seamless cloning with transparent switching between A and B device servers is achieved.
NOTE: The cloning feature software is only contained inside the device server application.
© 2014 Imagine Communications Corp. Proprietary and Confidential 22-April-2014 | Page 332 of 410
ADC Device Server v11.61.4
Installation, Configuration, and Operations Reference
IMPORTANT: Cloning and List Redundancy are considered mutually exclusive functionalities.
Cloning
© 2014 Imagine Communications Corp. Proprietary and Confidential 22-April-2014 | Page 333 of 410
