User's Manual

TT21/TT22 Transponder Installation Manual 13 July 2009

00560-00 Issue AF

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Trig Avionics Limited Page 1

1. Preface

1.1 Purpose

This manual describes the physical and electrical characteristics and the

installation requirements for a TT21/TT22 Mode S Transponder and

associated TC20 controller.

1.2 Scope

This document applies to the installation of the TT21 or TT22 Mode S

Transponder.

At the publication date of this manual the software version identifier for the

TT21 and TT22 is 1.3 and the FPGA version identifier is 1.2. The TC20

controller software version identifier is 1.2. The software and FPGA versions

are subject to change without notice.

1.3 Changes from Previous Issue

Changes from Issue AE to Issue AF are:

General

Addition of TT22

1.4 Document Cross-References

00559-00

TT21 Mode S Transponder Operating Manual