DCI Specs - Digital Cinema Initiatives

made up of Theater System devices and an Ethernet distribution system. This isrequired to be accomplished using 100Base-T Ethernet [IEEE 802.3]. This network isrequired to support all of the control, configuration, security, software upgrades,testing and status of the Theater Systems.The Theater Management Network can be sub-divided into two main categories ofcommunications:• Operational communications – The sending of commands and data to theTheater System devices and receiving status back form those devices.TCP/IP is required to be the protocol to send commands and configuration.SNMP/UDP/IP (Simple Network Management Protocol over User DatagramProtocol over Internet Protocol) can be used for status of the equipment.• Security communications – This messaging supports pre-playback, playbackand post playback operations and thus interfaces with the securitysubsystem(s). Such communications may take place over the same networksas above. However, security communications are required to employTransport Layer Security (TLS) per the security requirements of Section 9SECURITYThe following is a list of devices and examples of typical communications:7.5.9.3.2. Screen / Theater Management System (SMS/TMS)• Playback – Commands and Status, Material IDs, Asset Management• Configuration – Installation Values, Audio Channel Mappings, AutomationBehavior, Equipment Behaviors, Equipment Diagnostics• Security – Playability queries, SM Time adjusting, delivery of KeyManagement messages• Software/Firmware Upgrade – Software Upgrade Mode/Status, FirmwareUpgrade Mode/Status messages to Security Managers (SMs), collection oflog reports from Security Managers (SMs)• Faults – Equipment ID, Timestamp, Errors• Reports – Equipment Histories, User Logs, Security Events7.5.9.3.3. Storage• Playback – Commands And Status, Material IDs, Asset Management• Configuration – Installation Values, Equipment Behaviors, EquipmentDiagnostics• Software/Firmware Upgrade – Software Upgrade Mode/Status, FirmwareUpgrade Mode/Status• Faults – Equipment ID, Timestamp, Errors, Disk Error Logs• Reports – Equipment History7.5.9.3.4. Media Block• Playback – Commands And Status• Configuration – Installation Values, Audio Channel Mappings, AutomationDCI Digital Cinema System Specification v.1.2 Page 76