ANSI SCTE 26:2017 pdf download.Home Digital Network Interface Specification with Copy Protection.
The need for interfaces between cable set top boxes and digital television (DTV) receivers is one element of a general movement to interconnect multiple audio/visual (A/V) devices on a common bus or network. The IEEE 1394 interface has emerged as the preferred tool to accomplish this goal. This specification contains requirements and options for an IEEE 1394 digital interface between a cable TV set top box (called a Host Device in this standard because it “hosts” a removable security module), and a DTV receiver.
IEEE 1394, which covers the physical interface, has been extended by CEA-775, CEA-93 I and CEA-799 which cover the command language, remote control commands, and on-screen graphics display respectively. This standard extends these to cover the needs of cable set-top boxes. In addition, the Digital Transmission Content Protection specification governs copy protection of digital content on this interface.
A schematic of the typical architecture expected in the implementation of this specification is shown in below.
The functional partitioning defined in this standard locates the MPEG signal processing into the DTV receiver while service access and content descrambling occurs in the Host device.
2 REFERENCES
2.1 Normative References
The following standards and specifications are normative for devices complying with this interface specification. Where appropriate, this specification incorporates existing standards by reference. This specification also defines additional requirements not found elsewhere.
1. IEEE 1394-2008 “Standard for a High Performance Serial Bus”
IEEE 1394-2008 defines the physical, link, and transaction layers and the bus management protocol for data streams over a high-performance serial bus. It can be ordered from http://shop.ieee.org/store/ and from Global Engineering Documents, http://global.ihs.com/.
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3. IEC 61883 “Digital Interface for Consumer Audio/Video Equipment” IEC 6 1883-1 defines, among other things, a command!response protocol for delivering commands from a controller to another device over 1394 and connection management protocols for consumer devices.
IEC 61883-4 defines the digital data transmission format for transmitting MPEG-2 Transport Stream over an isochronous channel on 1394. 1 EC 61883-1 and -4 are normative and required for devices complying with this standard.
IEC 6 1883-2, -3, and -5 define digital data transmission formats for transmitting DVCR format AV data over an isochronous channel on 1394.
The IEC 61883 standard can be obtained from the IEC National Committees (e.g. ANSI in the US) and other sales outlets. Visit http://www.iec.ch/. Note: The current versions are 6 1883-1, Edition 2.0, dated 1/2003. Parts 2, 3,4, and 5 are Edition 2.0 dated 8/2004.
4. DTCP Digital Transmission Content Protection Specification
This is the DTCP copy protection specification which is used to protect designated MPEG content from unauthorized use. An informational version is available from http://www.dtcp.com/. Use of the technology defined in this specification is subject to licensing by Digital Transmission Licensing Administrator, dtladtcp.com.
5. AV/C Digital Interface Command Set, General Specification, 1394 Trade Association, Version 4.2.ANSI SCTE 26 pdf download.