IEC 62106-10:2021

Radio data system (RDS) - VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz - Part 10: UECP - Universal Encoder Communication Protocol

IEC 62106-10:2021(E) describes the Universal Encoder Communication Protocol – UECP. The UECP has as its primary objectives to satisfy the need for harmonized RDS encoder communication protocols and to facilitate the interworking of various RDS systems components, such as RDS servers, data bridges and encoders, regardless of the supplier. Furthermore, a harmonised network environment and encoder model is being maintained to facilitate the interchange of component parts of RDS network systems. These harmonized models and a universal layered protocol are specified, based on the ISO/OSI recommendation. The UECP encompasses all current RDS features including any new developments using the ODA protocol.

General Information

• Status: Published
• Publication Date: 09-Nov-2021
• ICS: 33.060.01 - Radiocommunications in general
• ICS: 33.160.20 - Radio receivers
• ICS: 33.170 - Television and radio broadcasting
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: PPUB - Publication issued
• Start Date: 26-Nov-2021
• Completion Date: 10-Nov-2021

Relations

• Replaces: IEC 62106:2015 - Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 MHz to 108,0 MHz
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62106-10 ®
Edition 1.0 2021-11
INTERNATIONAL
STANDARD
Radio data system (RDS) – VHF/FM sound broadcasting in the frequency range
from 64,0 MHz to 108,0 MHz –
Part 10: UECP – Universal Encoder Communication Protocol
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IEC 62106-10 ®
Edition 1.0 2021-11
INTERNATIONAL
STANDARD
Radio data system (RDS) – VHF/FM sound broadcasting in the frequency range

from 64,0 MHz to 108,0 MHz –
Part 10: UECP – Universal Encoder Communication Protocol

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.060.01; 33.160.20; 33.170 ISBN 978-2-8322-1042-4

– 2 – IEC 62106-10:2021 © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 9
3.1 Terms and definitions. 9
3.2 Abbreviated terms . 10
4 RDS encoder hardware model . 10
5 RDS encoder software model . 12
6 Destination addressing method . 13
6.1 General . 13
6.2 Site address. 14
6.3 Encoder address . 15
7 Transmission modes . 15
7.1 General . 15
7.2 Uni-directional mode . 15
7.3 Bi-directional mode, requested response . 15
7.4 Bi-directional mode, spontaneous response . 15
8 Protocol description . 15
8.1 Data format . 15
8.2 Data link layer . 15
8.2.1 General . 15
8.2.2 Data-frame . 16
8.2.3 Byte-stuffing method . 19
8.2.4 Message field format . 19
8.3 Message codes . 21
8.3.1 General . 21
8.3.2 Remote and configuration commands . 21
8.3.3 RDS messages . 21
8.3.4 Handling of RDS message bits declared "rfu" . 21
8.3.5 Status messages . 21
8.3.6 Specific messages . 21
8.4 Description of data handling . 21
8.5 Group sequence configuration . 22
8.5.1 Basic principles used . 22
8.5.2 Group sequence determination . 22
8.5.3 Extended group sequence command . 22
8.5.4 Relative priority group sequence command . 22
8.5.5 Special transmission conditions . 22
8.6 Handling of ODA data . 23
8.6.1 Using ODAs on data-stream 0 . 23
8.6.2 Using ODAs on the upper data-streams 1 to 3 . 23
Annex A (normative) UECP message command repertoire . 26
A.1 Message command format . 26
A.2 Commands for A or B-type groups on data-stream 0 . 26
A.2.1 PI / MEC 0x01 . 26

A.2.2 PS / MEC 0x02 . 27
A.2.3 Long PS / MEC 0x21 . 28
A.2.4 Data group for PTYI / MEC 0x04 . 28
A.2.5 TP – TA / MEC 0x03 . 29
A.2.6 PTY / MEC 0x07 . 29
A.2.7 PTYN / MEC 0x3E . 30
A.2.8 RT / MEC 0x0A . 30
A.2.9 AF / MEC 0x13 . 33
A.2.10 EON-AF / MEC 0x14 . 34
A.2.11 ECC and other slow label settings / MEC 0x1A . 35
A.2.12 Linkage information / MEC 0x2E . 36
A.2.13 Free-format data in type A or B group / MEC 0x24 . 36
A.3 Commands for ODAs on data-stream 0 . 37
A.3.1 Group type 3A ODA configuration and short message command / MEC
0x40 . 37
A.3.2 ODA assignment group usage sequence signalling / MEC 0x41 . 39
A.3.3 ODA relative priority group sequence / MEC 0x43 . 40
A.3.4 ODA data group repetitions and burst mode / MEC 0x44 . 40
A.3.5 ODA "spinning wheel" timing control / MEC 0x45 . 41
A.3.6 ODA data / MEC 0x46 . 42
A.3.7 ODA data command access right / MEC 0x47 . 44
A.4 Commands for clock setting and control for data-stream 0 . 45
A.4.1 Real time clock for CT / MEC 0x0D . 45
A.4.2 Real time clock correction for CT / MEC 0x09 . 46
A.4.3 CT on-off command / MEC 0x19 . 46
A.5 Commands for RDS signal alignment and control on data-stream 0 . 47
A.5.1 RDS on-off command data-stream 0 / MEC 0x1E . 47
A.5.2 RDS phase for subcarrier 0 / MEC 0x22 . 47
A.5.3 RDS level for subcarrier 0 / MEC 0x0E . 48
A.6 Message name commands control and set-up commands on data-stream 0 . 49
A.6.1 Site address / MEC 0x23 . 49
A.6.2 Encoder address / MEC 0x27 . 49
A.6.3 Make PSN list / MEC 0x28 . 50
A.6.4 PSN enable-disable / MEC 0x0B . 50
A.6.5 EON elements enable-disable / MEC 0x3F . 51
A.6.6 Communication mode / MEC 0x2C. 52
A.6.7 TA control / MEC 0x2A . 53
A.6.8 EON-TA control / MEC 0x15 . 53
A.6.9 Reference input select / MEC 0x1D . 54
A.6.10 Data set select / MEC 0x1C . 54
A.6.11 Group sequence determination for data-stream 0 / MEC 0x16 . 54
A.6.12 Extended group sequence for data-stream 0 / MEC 0x38 . 55
A.6.13 Group variant code sequence for data-stream 0 / MEC 0x29 . 57
A.6.14 Encoder access right / MEC: 0x3A . 58
A.6.15 Communications port configuration – Mode / MEC 0x3B . 59
A.6.16 Communications port configuration – Speed / MEC 0x3C . 60
A.6.17 Communications port configuration – Timeout /MEC 0x3D . 62
A.6.18 Message acknowledgment / MEC 0x18 . 63
A.6.19 Request message / MEC 0x17 . 64

– 4 – IEC 62106-10:2021 © IEC 2021
A.7 Manufacturers' and transmission operators' specific command / MEC 0x2D . 65
A.8 Commands for the C-type groups used on data-streams 1 to 3 . 66
A.8.1 ODA-AID channel assignment for AS group type C (Alternative 1)/MEC
0x50 . 66
A.8.2 ODA-AID channel assignment for AS group type C (Alternative 2) / MEC

0x51 . 68
A.8.3 Relative priority group sequence / MEC 0x53 .
...