DIN EN Cable networks for television signals, sound signals and interactive services – Part 9: Interfaces for CATV/SMATV headends. Buy CEI EN CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS AND INTERACTIVE SERVICES – PART 9: INTERFACES FOR . BS EN Cable networks for television signals, sound signals and interactive services – Interfaces for CATV/SMATV headends and similar.
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For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.
Equipment which implements the parallel interface shall support the three transmission formats as shown in Figures 6, 7 and 8.
BS EN 50083-9:2002
In the byte mode a low logical state indicates not to check the extra dummy bytes. Shielding of the interconnecting cable ej its connectors shall be employed. Transport packet timing Transport packets may be presented to Layer-2 either as a burst of contiguous bytes as shown in Figure B. On the ASI link, the bytes can be displaced in time with respect to their isochronous position.
EVS-EN – Estonian Centre for Standardisation
Layer-0, Layer-1, and Layer Initialization of the transmitter is done with negative RD, the transmitter may assume either the positive or 500833-9 negative RD. ENEN The line data stream is locked to the TS data stream.
The clock frequency fp depends on the transmission rate. RD at the beginning of a subblock is the calculated RD of the last sub-block. The nominal zero level for both masks should be aligned with the oscilloscope trace with 5008-39 input signal.
You may delete a document from your Alert Profile at any time. As the actual rate may deviate from the average, we introduce the peak rate as the highest rate found in the N time slices.
Distinction between the 500083-9 transmission formats on the serial link is performed as follows: Find Similar Items This ej falls into the following categories.
This is still very small relative to the currently suggested real time jitter constraint for MPEG-2 decoders. Annex E gives some proposals for how such a circuit can be designed. The optical characteristics of the links are described in the Table A. Electrical medium connector The required connector shall have mechanical characteristics conforming to the BNC type.
In the case of the byte packet format packets may contain a 16 bytes “empty space”, a DVALID Signal serves to identify these dummy bytes. The physical interface provides for both LED-driven multimode fibre and copper coaxial cable. The packet length can be bytes or bytes. The rate specification permits different values for N and T.
Describes physical interfaces for the interconnection of signal processing devices, such as in em stations. Proceed to Checkout Continue Shopping.
The Transport Packets shall be presented to Layer-2 either as contiguous byte packets, or separated by 16 dummy bytes, or contiguous Reed Solomon encoded byte packets. The first byte received after the second K All signals are synchronous to the clock signal. 50083-99 In order 50083–9 prevent possible synchronisation errors, it is recommended that consecutive bytes 47H do not occur within the byte or byte data packet.
The RJ is due to the thermal noise in the system and usually modelled as a Gaussian process. After every packet a small gap is present where no data bytes arrive at the receiver.
RD determines the ratio of zeros 500839- ones during the transmission. The faster, easier way to work with standards. If all relevant parameters are provided by equipment suppliers, the proper functioning of the complete system can be ensured. This SSI specification clause applies only to the point-to-point type link.
The accuracy of the derived clock is depicted by Amean and Asd for the frequency, and Tmean and Tsd for the time. 50038-9 example uses a more well-behaved stream. Deterministic Jitter is the ne of data dependent jitter 05083-9 duty cycle distortion. Byte synchronization The byte alignment synchronization pattern shall be the K Maximum common mode signal: Standards of EN series deal with cable networks for television signals, sound signals and interactive services including equipment, systems and em As the bytes are removed from the ASI receiver buffer at the average rate, the buffer occasionally fills with excess bytes.
This time is measured from receipt of a valid input to the time the receiver is synchronized to the bit stream and delivering valid re-timed data within the BER objective of the system. Additionally, an ASI input should be designed with an receiver buffer that accommodates as wide a variety of ASI outputs as possible within appropriate commercial constraints.
The example in Table C. The DJ is due to the timing distortions caused by normal circuit effects in the transmission system. The basic unit of Layer-0 is the link. A version in any other language made by 50083- under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. To 5008-39 interoperability, ASI implementations need to be subject to certain restrictions on the data transmission.
As an example, consider a signal which passes through several re-broadcast steps, such as the one depicted in Figure A.