18-19 September 2001

ATN2001 (London) 1

A Commitment to ATN

Implementing Aeronautical Data Link Today

Presented by Kevin WohlersACI Program Manager

18-19 September 2001 ATN2001 (London) 2

ACI Objective

ACI is a joint venture between THALES ATM, Honeywell, Sofréavia, and THALES Avionics

ACI was formed in 1997, under contract to ATNSI, to build and deploy the first platform independent, DO-178B level C, SARPS compliant ATN network router in the industry.

ACI delivered its first ground-side products in early 2000 for evaluation in the CPDLC Build 1 ground network.

ACI and its member companies are committed to providing a full suite of ground and airborne products.

18-19 September 2001 ATN2001 (London) 3

ACI Products

ACI, under contract to ATNSI, produced four Router Reference Implementation (RRI) configurations:

2 Airborne Systems (ES, IS) 2 Ground Systems (ES, IS) Full Suite of DO-178B level C documentation

ACI has produced accompanying products including: 4 Application Service Element (ASE) Modules

CPDLC and CM ADS and FIS

Support Tools DB Reader, Trace Logger, FIB Viewer, Control Application,

Event Logger

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ACI Documentation

DO 178B Level C Certification artifacts Development Plans, Design Documentation, Design Standards, Verification Artifacts,

CM/SQA Records, Configuration Index and SW Accomplishment Summary

Porting Guide Stack Configuration Scalable factors Build procedures RAM/ROM/MIPS estimation process STREAMS Environment (including PSE) Partitioning Host Interface Description Initialization / Operation / Shut-down

Validation test scripts & sequences System level tests designed for multiple configurations (g-g routing, end system, etc) Requirements Based Test Cases and Procedures - test to lowest level requirement

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Portability

Minimal Custom Modifications Required Stack Builder defines number of ASE’s and subnetwork drivers required. System Environment Exchange (SEE) provides interface to common

system services.

Based on Unix STREAMS Portable Streams Environment (PSE) allows STREAMS utilization on non-

Unix platforms User PSE allows for well defined partitioning between the RRI and non-level

C applications.

Scalability Scale for platform specifics through the Data Base Reader

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NMA

HMI

LocalManager

UserPSE

RouterStack

Platform

Custom ATN Portable ProductPackage Components User Processes

UserApplications

ATNApplications

ASEs

Stack Builder Configuration Tables

Build Configuration

Sys

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En

viro

nm

en

t E

xch

an

ge

SE

I

Cor

e P

SESubnetwork

Drivers

System Clock

OS

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CertificationFAA’s Technical ReUsable Software Team (TRUST)

TRUST performed Stage of Involvement (SOI) I, II Audits, reviewed SOI III, IV audit results

Developed Position Paper on ATNSI / ACI Reusable Software

Key issues addressed by TRUST Position Paper: Meeting DO-178B architecture and lifecycle data objectives Full System Requirements Traceability (high level requirements, structural coverage) PSAC defines, how much “certification credit” can be achieved Tool Qualification - All tools, not just development tools Partitioning - ensure non-level C code can not direct level C RRI Scalability - Porting Guide defines scalable parameters

Full set of Qualified Tools: Requirements Based Test Suite Structural Coverage SDL Requirements and Functional Coverage Autocode Generator Requirements Trace Tool

18-19 September 2001 ATN2001 (London) 8

Specifications

SDD

CODE

FRS

ICAO PICS/SARPs

S/SRS

VTC

Non

-fun

ctio

nal

Rqm

ts

Per

form

ance

Rqm

ts

VTP

Testable Rqmts

Requirements Trace Tree

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ACI supports FAA CPDLC I & IA programs

CPDLC 1* Ground ATN End System for the DLAP (ported on RS6000) Air simulator (400 aircraft simulation capability) Delivery of a tool set (dB reader, FIB viewer, trace & event logger, …) Interoperability testing with ARINC (ground network and VDL 2) and Rockwell-

Collins (CMU) Performance analysis support

CPDLC 1A* Full DO 178B level C ground End System for the DLAP (LynxOs port) DO 178B process consulting Network management strategy analysis

* as a subcontractor to Computer Science Corporation.

18-19 September 2001 ATN2001 (London) 10

ACI supports FAA CPDLC I & IA programs

CAART: Cooperative Agreement for ATN Router Trial Cooperative Agreement between the FAA and ACI for evaluation of RRI router

to support CPDLC-1 Successful evaluation of the router led the FAA to select the RRI router to

support CPDLC-1 at Miami ACC RRI router upgraded with enhanced configuration/network management

functions to meet CPDLC-1 requirements 4 routers delivered to FAA Installation at Miami ACC to start in October 2001

18-19 September 2001 ATN2001 (London) 11

Honeywell & THALES Avionics

Honeywell will port the RRI / ASEs to both federated and integrated platforms Federated: CMU Mk II & Mk III Integrated: AIMS (777), EPIC (B&GA), VIA (Military)

THALES Avionics has performed a trial RRI software portation to the Airbus ATSU platform, to prepare for future operational FANS/B installations in Airbus aircraft.

Joint THALES Avionics / Honeywell activities: THALES Avionics and Honeywell are currently in discussions with OEMs

concerning the provision of integrated ATN/ACARS routers. THALES Avionics and Honeywell are undergoing discussions with other avionics

providers concerning the provision of a VDL/2 compatible derivative of the RRI software.

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THALES ATM

THALES ATM is offering the ATN capability in its ATC Center product line EUROCAT. The Integrated Data Link Server integrates the ACI full DO 178B level C ATN stack with CPDLC applications as a building block of EUROCAT.

THALES ATM as a main partner in the European Commission Aircraft in the Future Air traffic management System (AFAS), is providing an ACI-based ATN stack for the ground functions, in coordination with the airborne router provided by THALES Avionics. This includes both the CPDLC and the ADS applications.

To ensure inter-operability of the available ATN stacks and compliance with the ICAO SARPS, Eurocontrol awarded the CAERAF (Common American European Reference ATN Facility) program development to THALES ATM. This program was completed early 2001, and the facility is available for validation purposes.

THALES supplies the complete Air & Ground suite

of ATN products for ATC & AOC needs

18-19 September 2001 ATN2001 (London) 13

SOFREAVIASOFREAVIA is offering ATN software products based on ProATN and ACI RRI/ASEs:

ProATN Router used in PETAL-II trials, and in CAERAF ProATN Router used in Norway for ADS for helicopters SAR Both ProATN and RRI routers currently being evaluated by SITA RRI Router being evaluated by the FAA

SOFREAVIA has been involved in major activities about ATN testing and validation

CAERAF, CTS

SOFREAVIA is offering consultancy and engineering services about ATN and data-link:

network design data-link systems design data-link certification

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Summary - Benefits

Portable software designed to mission-ready quality standards can reduce manufacturer cost & schedule risks, and can facilitate certificationATN software certifiable to DO 178B Level C has been in the field since February 2000, and will play a major role in the FAA CPDLC communication infrastructure, as well as in the products of the ACI partner companiesACI member companies are continuing to invest in, and support the transition from development to implementation This portable & certifiable software is available to 3rd parties under license, to provide the same benefits of cost and risk reduction