IEC TS 60839-7-8:2019

IEC TS 60839-7-8 ®
Edition 1.0 2019-05
TECHNICAL
SPECIFICATION
Alarm systems –
Part 7-8: Message formats and protocols for serial data interfaces in alarm
transmission systems – Requirements for common protocol for alarm
transmission using the Internet protocol

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IEC TS 60839-7-8 ®
Edition 1.0 2019-05
TECHNICAL
SPECIFICATION
Alarm systems –
Part 7-8: Message formats and protocols for serial data interfaces in alarm

transmission systems – Requirements for common protocol for alarm

transmission using the Internet protocol

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.320 ISBN 978-2-8322-6813-1

– 2 – IEC TS 60839-7-8:2019 © IEC 2019
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 9
4 Objective . 9
5 Messaging . 10
5.1 General . 10
5.2 Message format overview . 10
5.2.1 General . 10
5.2.2 Identifiers . 10
5.2.3 Message format . 11
5.2.4 Connection handle. 12
5.2.5 Device ID . 12
5.2.6 Message ID . 13
5.2.7 Message length . 14
5.2.8 Sequence numbers . 14
5.2.9 Flags. 14
5.3 Padding and message length . 14
5.3.1 Padding . 14
5.3.2 Message length . 15
5.4 Hashing . 15
5.5 Encryption . 15
5.5.1 General . 15
5.5.2 Key exchange . 16
5.6 Timeouts and retries . 16
5.7 Version number . 17
5.8 Reverse commands . 17
5.9 Initial values . 18
6 Message types . 18
6.1 General . 18
6.2 Path supervision . 18
6.2.1 General . 18
6.2.2 Poll message . 18
6.2.3 Poll response . 19
6.3 Event reporting . 19
6.3.1 Event message format . 19
6.3.2 Event response format. 22
6.4 Configuration messages . 23
6.4.1 General . 23
6.4.2 Connection handle request . 23
6.4.3 Connection handle response . 24
6.4.4 Device ID request. 24
6.4.5 Device ID response . 25
6.4.6 Encryption selection request . 25

6.4.7 Encryption selection response . 26
6.4.8 Encryption key exchange request . 26
6.4.9 Encryption key exchange response. 27
6.4.10 Hash selection request . 27
6.4.11 Hash selection response . 28
6.4.12 Path supervision request. 28
6.4.13 Path supervision response . 29
6.4.14 Set time command. 29
6.4.15 Set time response . 29
6.4.16 Protocol version request . 30
6.4.17 Protocol version response . 30
6.4.18 Transparent message. 30
6.4.19 Transparent response . 30
6.4.20 DTLS completed request . 31
6.4.21 DTLS completed response. 31
6.4.22 RCT IP parameter request . 31
6.4.23 RCT IP parameter response. 32
7 Commissioning and connection setup . 32
7.1 Commissioning . 32
7.1.1 General . 32
7.1.2 Procedures . 33
7.1.3 Commissioning message sequence . 33
7.1.4 Commissioning using shared secret . 34
7.1.5 Commissioning using X.509 certificates and DTLS . 35
7.2 Connection setup . 36
Annex A (normative) Result codes . 38
Annex B (normative) Protocol identifiers. 39
Annex C (normative) Shared secret. 40
C.1 Formatting of the shared secret . 40
C.2 Checksum for shared secret formatting. 40
C.3 Example of secret encoding and formatting. 40
Annex D (informative) Examples of messaging sequences . 42
D.1 Commissioning . 42
D.2 Connection setup . 45
Annex E (informative) Examples of application protocols . 48
E.1 SIA . 48
E.2 Ademco contact ID . 48
E.3 Scancom fast format . 49
E.4 VdS 2465 . 49
Annex F (informative) Design principles . 51
F.1 General . 51
F.2 Information security . 51
F.3 Use of UDP signalling . 51
Bibliography . 52

Table 1 – Identifiers . 10
Table 2 – Basic unencrypted format of messages . 11

– 4 – IEC TS 60839-7-8:2019 © IEC 2019
Table 3 – Basic encrypted format of messages . 11
Table 4 – Message ID overview . 13
Table 5 – Flags . 14
Table 6 – Hashing IDs . 15
Table 7 – Encryption IDs . 16
Table 8 – Reverse commands . 17
Table 9 – Initial values. 18
Table 10 – Poll message SPT   RCT . 18
Table 11 – Poll response RCT   SPT. 19
Table 12 – Event message format – SPT  RCT . 20
Table 13 – Event message format – Fields . 20
Table 14 – Event field. 21
Table 15 – Time event field . 21
Table 16 – Time message f
...