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BS ISO 21806-11:2021

BS ISO 21806-11:2021

$215.11

Road vehicles. Media Oriented Systems Transport (MOST) – 150-Mbit/s coaxial physical layer conformance test plan

Published By Publication Date Number of Pages
BSI 2021 96
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This document specifies the conformance test plan for the 150-Mbit/s coaxial physical layer for MOST (MOST150 cPHY), 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 21806-10.

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
14 6 Operating conditions and measurement tools, requested accuracy
6.1 Operating conditions
6.2 Apparatus — Measurement tools, requested accuracy
6.2.1 Oscilloscope
6.2.2 VNA or TDR (TDR bandwidth ≥ 3,5 GHz).
6.2.3 Ampere meter
7 Electrical characteristics
7.1 Test according to LVDS
15 7.2 Test according to LVTTL
8 Coaxial characteristics
8.1 High/low detection at SP2
8.2 Transition times at SP2
16 8.3 Steady state amplitude at SP2
8.4 Attenuation of coaxial interconnect
8.4.1 General
17 8.4.2 Coefficient values based on attenuation measurements
8.4.3 Fitting of corridor
8.4.4 Attenuation test set-up
18 8.4.5 Test procedure
23 8.5 RL of connectors and couplers
8.6 Characteristic impedance of coaxial cable
8.7 RL of coaxial interconnect
25 8.8 RL of PCB interfaces
26 8.9 Stimulus creation for SP3
8.9.1 General
8.9.2 Pattern generator
27 8.9.3 Arbitrary signal generator
8.9.4 Attenuator
8.9.5 Cable or analogue representation
28 8.9.6 Noise generator
8.9.7 Creating a stimulus for SP3 for simplex applications
30 8.9.8 Creating a stimulus for SP3 for duplex applications
34 9 Measurement of phase variation
9.1 General
35 9.2 Measuring alignment jitter
38 9.3 Measuring transferred jitter
40 10 Test set-ups
10.1 General
41 10.2 Graphical symbols and descriptions
10.2.1 Pattern generator SP1
10.2.2 SP3 stimulus
10.2.3 Standalone simplex ECport under test
42 10.2.4 Integrated simplex ECport under test
10.2.5 Standalone simplex CEport under test
43 10.2.6 Integrated simplex CEport under test
10.2.7 Duplex ECport under test
44 10.2.8 Duplex CEport under test
45 10.3 Set-ups for dual simplex
10.3.1 General
10.3.2 SP2 signal quality measurement for simplex
46 10.3.3 SP4 jitter measurement (AJ and TJ) for simplex
48 10.4 Set-ups for duplex
10.4.1 General
10.4.2 Directional couplers
50 10.4.3 SP2 signal quality measurement for duplex
52 10.4.4 SP4 jitter measurement (AJ and TJ) for duplex
54 11 Power-on and power-off
11.1 General
55 11.2 Measuring ECC parameters
11.2.1 Measuring ECC parameters – Test set-up
56 11.2.2 Measuring ECC parameters – Signal charts
57 11.2.3 Measuring ECC parameters – Test sequences
61 11.3 Measuring CEC parameters
11.3.1 Measuring CEC parameters – Test set-up
63 11.3.2 Measuring CEC parameters – Signal charts
11.3.3 Measuring CEC parameters – Test sequences
67 12 Detecting bit rate (frequency reference)
13 System performance
13.1 General
13.2 SP4 receiver tolerance
68 13.3 TimingMaster delay tolerance
71 14 Conformance tests of 150-Mbit/s coaxial physical layer
14.1 Location of interfaces
74 14.2 Control signals
75 14.3 Limited access to specification points
76 14.4 Parameter overview
15 Limited physical layer conformance
15.1 Overview
77 15.2 Test set-ups 1 and 2
78 15.3 Generating test signals for the IUT input section SP3
79 15.4 Analysis of test results
15.5 Test flow overview
80 15.6 Measurement of SP3 input signal of the IUT
81 15.7 Measurement of SP2 output signal of the IUT
82 15.8 Measurement of RL
15.9 Functional test of wake-up and shutdown
16 Direct physical measuring accuracy
83 17 Measurement of Port1 delay drift
84 Annex A (informative) Limited physical layer conformance for development tools
85 Annex B (normative) SP3 stress conditions
86 Annex C (normative) Compensation set-up for MOST150 cPHY duplex
90 Annex D (informative) Test procedure for 2-port nodes
94 Bibliography

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BS ISO 21806-11:2021
$215.11