ISO 21214:2015

INTERNATIONAL ISO
STANDARD 21214
Second edition
2015-08-01
Intelligent transport systems —
Communications access for land
mobiles (CALM) — Infra-red systems
Systèmes intelligents de transport — Accès aux communications des
services mobiles terrestres (CALM) — Systèmes à infrarouges
Reference number
©
ISO 2015
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

Contents Page
Foreword .vii
Introduction .viii
1 Scope . 1
2 Conformance . 1
3 Normative references . 2
4 Terms and definitions . 2
4.1 General terms and definitions . 2
4.2 Terms and definitions of the optical parameters . 4
5 Symbols (and abbreviated terms) . 7
6 Requirements: Transmitter and receiver parameters .10
6.1 Transmitter wavelengths and bandwidths .10
6.2 Radiated power .11
6.2.1 Radiated power limits .11
6.2.2 Transmitter classes .11
6.3 Receiver wavelengths and bandwidths .11
6.4 Receiver class .12
7 Modulation and coding .12
7.1 Wake-up modes .12
7.1.1 85 kHz coded WU .12
7.1.2 Transmitter generic modulation parameters .13
7.1.3 Receiver generic modulation parameters .13
7.2 Communications profiles .13
7.3 Profile 0 (base profile) and profile 1 (default profile) modulation .14
7.4 Profile 2 to profile 6 .14
8 Directivity and communication zones .15
8.1 Directivity parameters .15
8.2 Communication zones .16
8.2.1 Basic beam .16
8.2.2 Communication zone construction .16
8.2.3 Communication zones shortcuts . .16
9 Frames and windows .17
9.1 General structure .17
9.2 Frame .18
9.2.1 Frame structure .18
9.2.2 Frame synchronisation signal (F-Sync) .19
9.3 Windows .19
9.3.1 Window structure and types .19
9.3.2 Window synchronisation (W-Sync).19
9.3.3 Management window .20
9.3.4 Private window .22
9.3.5 Broadcast window .23
9.3.6 Multicast window .24
9.3.7 Spare window .25
9.3.8 Compatibility window .25
9.3.9 Wake-up window . .25
9.4 Command alert (CA) . .26
9.5 Frame and window parameters, summary .26
10 MAC commands .28
10.1 General .28
10.2 MAC commands related to the frame and window organization .29
10.2.1 Frame organization table (MC-FOT) .29
10.2.2 When generated .30
10.2.3 Effect on receipt .30
10.2.4 Frame organization table update (MC-FOTU) .30
10.2.5 Frame organization table steady (MC-FOTS) .31
10.2.6 Submaster organization table (MC-SOT) .32
10.2.7 Get submaster area (MC-GSA) .33
10.2.8 Submaster status (MC-SST) .33
10.2.9 Submaster area confirmed (MC-SAC) .34
10.2.10 Submaster area denied (MC-RESD) .34
10.2.11 Broadcast (MC-BRC) .34
10.2.12 Re-establish session (MC-REST) .35
10.2.13 Session re-establishment confirmed (MC-RESC) .36
10.2.14 Session re-establishment denied (MC-RESD) .36
10.2.15 Change master identifier (MC-CMI) .36
10.2.16 Kill all (MC-KIA) .37
10.2.17 Kill slave (MC-KIS) .37
10.2.18 De-register (MC-DREG) .38
10.2.19 Suspend all (MC-SUA) .39
10.2.20 Suspend slave (MC-SUS) .39
10.2.21 Free air time (MC-FAT) .40
10.2.22 Free air time (MC-FAT) .40
10.2.23 Spare window (MC-SPW) .41
10.2.24 Wakeup (MC-WU) .41
10.3 MAC commands related to flow control .42
10.3.1 Busy (MC-BSY) .42
10.3.2 Command not supported (MC-CNS) .42
10.3.3 Token (MC-TKN) .
...