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BS ISO 21806-13:2021

BS ISO 21806-13:2021

$198.66

Road vehicles. Media Oriented Systems Transport (MOST) – 50-Mbit/s balanced media physical layer conformance test plan

Published By Publication Date Number of Pages
BSI 2021 68
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This document specifies the conformance test plan for the 50-Mbit/s balanced media physical layer for MOST (MOST50 bPHY), a synchronous time-division-multiplexing network.

This document specifies the basic conformance test measurement methods, relevant for verifying compatibility of networks, nodes, and MOST components with the requirements specified in ISO 21806-12.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
12 4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
13 5 Conventions
6 Operating conditions and measurement tools, requested accuracy
6.1 Operating conditions
6.2 Apparatus — Measurement tools, requested accuracy
6.2.1 Oscilloscope
14 6.2.2 VNA or TDR (TDR bandwidth ≥3,5 GHz).
6.2.3 Ampere meter
6.2.4 Pattern generator for generating MOST50 bPHY stress pattern
7 Electrical characteristics
8 Balanced media characteristics
8.1 Threshold for detection of alignment and transferred jitter
8.2 RMS signal amplitude
15 8.3 PSD of SP2 output signal
17 8.4 Attenuation of electrical interconnect
8.4.1 General
18 8.4.2 Test procedure general
8.4.3 Example set-up test procedure
8.4.4 Test procedure for data acquisition
19 8.4.5 Impact of attenuation on the data signal
20 8.5 Characteristic impedance of balanced media
23 8.6 RL of PCB interfaces
25 8.7 Receive tolerance
8.7.1 General
8.7.2 Pattern generator
26 8.7.3 Arbitrary signal generator
8.7.4 Cable assembly or its analogue representation
8.7.5 Stimulus creation for SP3
28 9 Measurement of phase variation
9.1 General
30 9.2 Measuring alignment jitter
33 9.3 Measuring transferred jitter
35 10 Test set-ups
10.1 General
10.2 Set-ups for SP2 link quality
37 10.3 Set-ups for SP3 link quality
39 10.4 Set-ups for SP3 receive tolerance
40 11 Power-on and power-off
11.1 General
41 11.2 Measuring EBC parameters
11.2.1 Measuring EBC parameters – Test set-up
42 11.2.2 Measuring EBC parameters – Signal charts
43 11.2.3 Measuring EBC parameters – Test sequences
45 11.3 Measuring BEC parameters
11.3.1 Measuring BEC parameters – Test set-up
47 11.3.2 Measuring BEC parameters – Signal chart
11.3.3 Measuring BEC parameters – Test sequences
50 12 Detecting bit rate (frequency reference)
13 System performance
13.1 General
51 13.2 SP3 receiver tolerance
13.3 TimingMaster delay tolerance
54 14 Conformance test of 50-Mbit/s balanced media physical layer
14.1 Location of interfaces
14.2 Control signals
55 14.3 Limited access to specification points
14.4 Parameter overview
15 Limited physical layer conformance
15.1 Overview
56 15.2 Test set-up
57 15.3 Generating test signals for the IUT input section SP3
15.4 Analysis of test results
15.5 Test flow overview
58 15.6 Measurement of SP3 input signal of the IUT
59 15.7 Measurement of SP2 output signal of the IUT
15.8 Measurement of RL
15.9 Functional test of wake-up and shutdown
60 16 Direct physical measuring accuracy
61 Annex A (informative) Limited physical layer conformance for development tools
62 Annex B (normative) SP3 stress conditions
63 Annex C (informative) Test fixture
66 Annex D (informative) Overview on test modes
67 Bibliography

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BS ISO 21806-13:2021
$198.66