ATT-20 Audio Track Transceiver
Copyright 2019 SM 6299 Rev. 3, March 2019
ii
Revision History
REV.
DATE
NATURE OF REVISION
0
April 1997
Initial issue
1.0
June 2008
Revised to current template.
Updated parts lists and drawings.
Incorporated ECO EE-1223 (2/00).
Miscellaneous minor grammatical
changes. Proof read comments
resolved.
2
December 2015
Revised Figure 1-1 and Figure 6-1 to
add R14 and label. Revised Table 6-4
and Figure 6-1 for items 126 and 127.
Revised Table 6-5 to correct ATT-20
Unit part numbers.
3
March 2019
Hitachi Rail STS Branding
Summary of Contents for ATT-20
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