---
title: "ETSO-C160a A1 — CS-ETSO · Avioverse"
description: "VDL Mode 2 Communications equipment 1 Applicability This ETSO provides the requirements which VDL Mode 2 Communications equipment that is designed and…"
url: "https://avioverse.aero/regulations/easa/cs-etso/subpart-b/etso-c160a"
---

# ETSO-C160a A1

European Technical Standard Orders (CS-ETSO) · CS-ETSO · EAR revision 1 Oct 2026

IR Implementing rule

## ETSO-C160a A1

VDL Mode 2 Communications equipment

1 Applicability

This ETSO provides the requirements which VDL Mode 2 Communications equipment that is designed and manufactured on or after the date of this ETSO must meet in order to be identified with the applicable ETSO marking.

2 Procedures

2.1 General

The applicable procedures are detailed in CS-ETSO, Subpart A.

2.2 Specific

None.

3 Technical Conditions

3.1 Basic

3.1.1 Minimum Performance Standard

The applicable standards are those provided in EUROCAE ED-92B, Minimum Operational Performance Standards for Aircraft VDL Mode 2 Physical, Link, and Network Layer, dated 21 March 2012, or in EUROCAE ED-92C, Minimum Operational Performance Standards for an Airborne VDL Mode-2 System Operating in the Frequency Range 118-136.975 MHz, dated September 2018. ED-92B is identical to RTCA DO-281B. ED-92C is identical to RTCA DO-281C.

Compliance shall be demonstrated entirely with one of the versions of the applicable minimum operational performance standards.

3.1.2 Environmental Standard

See CS-ETSO, Subpart A, paragraph 2.1.

3.1.3 Software

See CS-ETSO, Subpart A, paragraph 2.2.

3.1.4 Airborne Electronic Hardware

See CS-ETSO, Subpart A, paragraph 2.3.

3.2 Specific

3.2.1 Failure Condition Classification

See CS-ETSO, Subpart A, paragraph 2.4.

A failure of the function defined in paragraph 3.1.1 of this ETSO has been determined to be a minor failure condition.

4 Marking

4.1 General

See CS-ETSO, Subpart A, paragraph 1.2.

4.2 Specific

None.

5 Availability of Referenced Documents

See CS-ETSO, Subpart A, paragraph 3.

\[Amdt ETSO/8]

\[Amdt ETSO/16]

IR · ETSO-C160a — CS-ETSO · ED Decision 2020/011/R · CS-ETSO Easy Access Rules · EAR revision 1 Oct 2026

[All rules in SUBPART B – LIST OF ETSOs](https://avioverse.aero/regulations/easa/cs-etso/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 1 Oct 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.