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I.S. EN 50494:2007

Current
Current

The latest, up-to-date edition.

SATELLITE SIGNAL DISTRIBUTION OVER A SINGLE COAXIAL CABLE IN SINGLE DWELLING INSTALLATIONS
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2007

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Introduction
1 Scope
2 Normative references
3 Acronyms and definitions
   3.1 Acronyms
   3.2 Definitions
4 System architecture
5 SCIF control signals
   5.1 DC levels
   5.2 Method of the data bit signalling
   5.3 Structure of the DiSEqC message in the single
       coaxial cable system
6 Structure and format of the DiSEqC messages
   6.1 DiSEqC addresses
   6.2 Normal operation
       6.2.1 ODU_Channel_change
       6.2.2 ODU_PowerOFF
   6.3 Special modes
       6.3.1 Installation, SCIF parameters recognition
       6.3.2 ODU_UBxSignal_ON
       6.3.3 ODU_Config
       6.3.4 ODU_LoFreq
7 Look-up tables and conventions
   7.1 UB slots numbering
   7.2 Input banks numbering
   7.3 Config_Nb table
   7.4 LoFreq table
8 Traffic collision management rules
9 Optional extension of the single cable distribution to
   the multi-dwelling installations
   9.1 Extension for multi-dwelling installations
   9.2 Extensions for structure and format of the DiSEqC
       messages
   9.3 Specific commands for installation
   9.4 Installation with manual entry of the system parameters,
       PIN code handling
   9.5 SDU and MDU compatibility rules
Annex A (informative) - Implementation guidelines
   A.1 Installation impedance
   A.2 Installation: signal reflection and returned loss
   A.3 Power supply of the SCIF
   A.4 Tuning word calculation, software recommendations
   A.5 RF scanning, RF tone recognition, SCIF parameter
       recognition

Explains: - the system physical structure; - the system control signals, which implement an extension of the DiSEqC set of commands described in the DiSEqC bus functional specification; - the definition of identified configurations; - management of the potential collisions in the control signals traffic.

DocumentType
Standard
Pages
32
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
BS EN 50494:2007 Identical
DIN EN 50494:2008-02 Identical
NEN EN 50494 : 2007 Identical
EN 50494:2007 Identical
NF EN 50494 : 2013 Identical

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