BS EN 50607:2015 – TC:2020 Edition
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Tracked Changes. Satellite signal distribution over a single coaxial cable. Second generation
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 64 |
This standard describes: ? the system physical structure; ? the system control signals, which implement a set of messages using DiSEqC physical layer but not the DiSEqC message structure; ? the definition of identified configurations; ? the management of the potential collisions in the control signals traffic. Figure 1 illustrates the physical system configuration considered in this standard. Several satellite signal demodulators can receive signals from any of the input signal banks (Bank 1, Bank 2, ???? Bank M, with M ? 256) of the LNB or the switch. The signals selected by the demodulators (or receivers) are transported via a single cable to these demodulators (Receiver 1, Receiver 2, ???? Receiver N, with N ? 32). To achieve these single cable distributions, the Single Cable Interface (SCIF, likely embedded in a LNB or a Switch) features some specific functions and characteristics.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 37 | Foreword |
| 38 | Introduction |
| 39 | 1 Scope Figure 1 — General architecture of the single cable distribution 2 Normative references |
| 40 | 3 Terms, definitions and abbreviations 3.1 Terms and definitions |
| 42 | 3.2 Abbreviations 3.3 Used commands |
| 43 | 4 System architecture |
| 44 | Figure 2 — General system operation and UB slot frequency mapping Figure 3 — Installation example, universal architecture system with reception of one orbital position (4 Satellite IF banks) by two receivers (2 UB slots) |
| 45 | Figure 4 − Installation example, wideband architecture system with reception of one orbital position (2 Satellite IF banks) by two receivers (2 UB slots) Figure 5 — Installation example implementing the reception of two orbital positions (8 satellite IF banks) by four receivers (4 UB slots) |
| 46 | Figure 6 — Installation example implementing the reception of four orbital positions (16 satellite IF banks) for 12 receivers (12 UB slots) 5 SCIF control signals 5.1 DC levels |
| 47 | Table 1 — Timing for unidirectional communication Figure 7 — Signal sent by the receiver for uni-directional communication Table 2 — Timing for bidirectional communication |
| 48 | Figure 8 — Signal sent by the receiver for bi-directional communication 5.2 Method of the data bit signalling Figure 9 — Bit signalling according to DiSEqC format 6 Structure and format of the messages of the 2nd generation single cable distribution system (SCD2) 6.1 Backwards Compatibility to EN 50494 6.2 Non-DiSEqC structure |
| 49 | 6.3 Uni-directional operation 6.4 Bi-directional operation 7 SCD2 commands 7.1 ODU_Channel_change 7.1.1 Formats |
| 50 | 7.1.2 “Special” frequencies 7.2 ODU_Channel_change_PIN |
| 51 | 7.3 ODU_UB_avail |
| 52 | 7.4 ODU_UB_PIN Data 1 format: 7.5 ODU_UB_inuse |
| 53 | 7.6 ODU_UB_freq |
| 54 | 7.7 ODU_UB_switches |
| 55 | 8 Conventions 8.1 UB slots numbering Table 3 — UB slot numbering |
| 56 | 8.2 Numbering of satellite IF banks 9 Traffic collision management rules 9.1 General 9.2 Automatic detection of SCIF control signal failure |
| 57 | 9.3 Pseudo-random repeat 9.3.1 Handling of SCIF control signal Figure 10 — SCIF control signal collision between two receivers and recovery mechanism 9.3.2 Random delay generation law |
| 59 | Annex A (normative) Implementation rules A.1 User interface A.2 Installation impedance |
| 60 | Figure A.1 — Solution for masking the impedance of the installation during the SCIF control signals A.3 Signal reflection and return loss in installations A.4 Power supply of the SCIF |
| 61 | Figure A.2 — Implementation of an external power supply A.5 Remarks concerning power supply |
| 62 | Bibliography |
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BS EN 50607:2015
Satellite signal distribution over a single coaxial cable. Second generation Published By Publication Date Number…
