ISO/FDIS 17981

Space systems — Cube satellite (CubeSat) interface

This document describes internal and external interface of CubeSat. The internal interface includes the interface between components and the interface between a CubeSat platform and a mission payload. The external interface is limited to the umbilical connectors, i.e. access port. The document also describes the items to be included in the datasheet of the CubeSat components and platforms. The datasheet requirements apply to catalogued commercial products ready for sale. The interface between CubeSat and its deployer, i.e. POD, is not included in the scope. This document is applicable to all sizes of CubeSats.

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General Information

• Status: Not Published
• ICS: 49.140 - Space systems and operations
• Technical Committee: ISO/TC 20/SC 14 - Space systems and operations
• Drafting Committee: ISO/TC 20/SC 14 - Space systems and operations
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 14-Jun-2024
• Completion Date: 14-Jun-2024

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 17981
ISO/TC 20/SC 14
Space systems — Cube satellite
Secretariat: ANSI
(CubeSat) interface
Voting begins on:
2024-06-14
Voting terminates on:
2024-08-09
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 17981:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/FDIS 17981:2024(en)
International
Standard
ISO/FDIS 17981
ISO/TC 20/SC 14
Space systems — Cube satellite
Secretariat: ANSI
(CubeSat) interface
Voting begins on:
Voting terminates on:
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 17981:2024(en) © ISO 2024

© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/FDIS 17981:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Internal interface requirements . . 3
5.1 Unit to unit interface .3
5.1.1 General .3
5.1.2 PC-104 style .3
5.1.3 Backplane style .6
5.2 Mission payload to platform interface .6
5.2.1 Mechanical connection .
...

ISO/FDIS 17981:2023(E)
ISO/TC 20/SC 14/WG 1
Secretariat: ANSI/AIAA
Date: 2024-02-2105-30
Space systems — Cube satellite (CubeSat) interface
FDIS stage

---------------------- Page: 1 ----------------------
ISO/FDIS 17981:2024(Een)
© ISO 20232024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Fax: [phone]
EmailE-mail: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/FDIS 17981:2024(Een)
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Internal interface requirements . 3
5.1 Unit to unit interface . 3
5.1.1 General . 3
5.1.2 PC-104 style . 3
5.1.3 Backplane style . 9
5.2 Mission payload to platform interface . 9
5.2.1 Mechanical connection . 9
5.2.2 Connection methods . 9
5.2.3 Ground lines . 9
5.2.4 Power . 9
5.2.5 Analogue data interface . 9
5.2.6 Digital data interface . 10
5.2.7 Debugging . 10
5.2.8 EMC . 10
5.2.9 Fault isolation and recovery . 10
5.2.10 Harmlessness to other payloads, platform and missions . 10
5.2.11 Safety requirements. 10
5.2.12 Radiation .
...