Video Disk Control Protocol: Difference between revisions

Revision as of 14:25, 15 March 2013

Revision as of 00:47, 16 January 2014

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'''Video Disk Control Protocol''' ('''VDCP''') is a [[proprietary communications protocol]] primarily used in [[broadcast automation]] to control [[hard disk]] [[video server]]s for [[broadcast television]]. [[VDCP]] was originally developed by [[Louth Automation]] and is commonly called the ''Louth Protocol''lled. At the time it was developed when Hewlett devicePackard (videoeventually disksold to [[Pinnacle Systems]]). VDCPand conforms[[Tektronix]] were both bringing to market the first of the VideoFile Servers to be used in the broadcast industry. They contacted Louth Automation who then designed the [[Opencommunications Systems Interconnectionprotocol]] (OSI)basing it on Sony protocols of both the Sony LMS Storage Device and the Sony VTR. The principal work was carried out by Ken Louth and referenceStan modelBecker.

VDCP uses a tightly coupled master-slave methodology. The controlling device takes the initiative in communications between the controlling broadcast [[automation]] device and the controlled device (video disk). VDCP conforms to the [[Open Systems Interconnection]] (OSI) reference model.

VDCP is a [[serial communications]] protocol based on [[RS-422]]. It is derived from the [[Sony]] [[9-Pin Protocol]], an industry-standard protocol for control of professional broadcast [[VTR]]s that is used in [[online editing]].