Industrial communications subsystem based on ISO 11898 (CAN) for controller-device interfaces - Part 4: CANopen (Endorsed by AENOR in March of 2003.)
Edition 2003-03-01

Industrial communications subsystem based on ISO 11898 (CAN) for controller-device interfaces - Part 4: CANopen
Edition 2003-10-01

Digital cellular telecommunications system (Phase 2+) - Radio subsystem link control (GSM 05.08 version 8.4.1 Release 1999)
Edition 2001-01-01

Digital cellular telecommunications system (Phase 2+) - Radio subsystem synchronization (GSM 05.10 version 6.6.1 Release 1997)
Edition 2001-08-01

Fibre optic communication subsystem test procedures - Part 2-1: Digital systems - Receiver sensitivity and overload measurement (Endorsed by AENOR in June of 2010.)
Edition 2010-06-01

Intelligent transport systems - eSafety - eCall High level application protocols (HLAP) using IP Multimedia Subsystem (IMS) over packet switched networks (Endorsed by Asociación Española de Normalización in February of 2023.)
Edition 2023-02-01

Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services, Mobility Management, and RFSS Capability Polling Services- Addendum 2- Erratum 1 to Fix Errors and Omissions
Edition 2016-11

Project 25 Inter-RF Subsystem Interface Messages and Procedures for Voice Services, Mobility Management, and RFSS Capability Polling Services- Addendum 1 - Group Emergency Behaviors
Edition 2013-07

BS EN 61280-4-2. Fibre-optic communication subsystem test procedures. Part 4-2. Installed cable plant. Single-mode attenuation and optical return loss measurement
Edition 2023-01-16

BS EN 61280-1-4. Fibre optic communication subsystem test procedures. Part 1-4. General communication subsystems. Light source encircled flux measurement method
Edition 2022-02-02