ISO 21806-9:2020

INTERNATIONAL ISO
STANDARD 21806-9
First edition
2020-10
Road vehicles — Media Oriented
Systems Transport (MOST) —
Part 9:
150-Mbit/s optical physical layer
conformance test plan
Véhicules routiers — Système de transport axé sur les médias —
Partie 9: Plan d'essais de conformité de la couche optique physique à
150-Mbit/s
Reference number
©
ISO 2020
© ISO 2020
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ii © ISO 2020 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 2
4.1 Symbols . 2
4.2 Abbreviated terms . 2
5 Conventions . 3
6 Operating conditions and measurement tools, requested accuracy .3
6.1 Operating conditions . 3
6.2 Apparatus — Measurement tools, requested accuracy . 3
7 Electrical characteristics . 5
7.1 Test according to LVDS . 5
7.2 Test according to LVTTL . 5
8 Optical characteristics . 5
8.1 Measurement of optical output power at SP2. 5
8.2 Measurement of optical input power at SP3 . 6
8.3 Measurement of pigtail fibre attenuation . 7
8.3.1 General. 7
8.3.2 Practical considerations . 9
8.4 Spectral parameters at SP2 .11
8.5 b /b detection at SP2 .11
0 1
8.6 Extinction ratio at SP2 .13
8.7 Optical overshoot and undershoot at SP2 .13
8.7.1 General.13
8.7.2 Overshoot measurement example .14
8.7.3 Undershoot (2 UI) measurement example .16
8.7.4 Undershoot (4UI) measurement example .16
8.8 Transition times at SP2 .17
8.9 Stimulus creation for SP3 .18
9 Measurement of phase variation .19
9.1 General .19
9.2 Measuring alignment jitter .21
9.3 Measuring transferred jitter .23
9.4 Test set-ups .25
9.4.1 Relevant eye mask for MOST components .25
9.4.2 SP4 Jitter measurement (AJ and TJ) .26
9.4.3 SP2 jitter measurement (AJ and TJ) .27
9.5 Crosstalk .28
9.5.1 General.28
9.5.2 Measurement set-up .28
9.5.3 Procedure .29
10 Power-on and power-off .29
10.1 General .29
10.2 Measuring EOC parameters .30
10.2.1 Measuring EOC parameters — Test set-up .30
10.2.2 Measuring EOC parameters — Signal charts.31
10.2.3 Measuring EOC parameters — Test sequences .33
10.3 Measuring OEC parameters .37
10.3.1 Measuring OEC parameters — Test set-up .37
10.3.2 Measuring OEC parameters — Signal charts.38
10.3.3 Measuring OEC parameters — Test sequences .39
11 Detecting bit rate (frequency reference) .43
12 System performance .43
12.1 General .43
12.2 SP4 receiver tolerance .43
12.3 TimingMaster delay tolerance .44
13 Conformance tests of 150-Mbit/s optical physical layer .47
13.1 Location of interfaces .47
13.2 Control signals .48
13.3 Limited access to specification points .49
13.4 Parameter overview .49
14 Physical layer verification for MOST components, MOST modules, and MOST devices .51
14.1 FOT .51
14.2 Pigtail.52
14.3 MOST device .52
14.4 Development tool .52
15 Full physical layer conformance .52
15.1 Overview .52
15.2 Consideration of FOT .52
15.3 Consideration of pigtail .52
15.4 Consideration of connector interfaces .52
15.5 Generating test signals for the IUT .53
15.5.1 G
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