To indicate the start of a transaction set and to assign a control number
200
BAX
Beginning Segment for Advance Consist and Transportation Automatic Equipment ID
To transmit identifying numbers, dates, and other basic data relating to the transaction set
300
AES
Automatic Equipment Identification Site Information
To identify the status of an automatic equipment identification reader site
To identify and answer yes and no questions, including the date, time, and comments further qualifying the condition
500
N9
Extended Reference Information
To transmit identifying information as specified by the Reference Identification Qualifier
To specify quantity information
To specify physical measurements or counts, including dimensions, tolerances, variances, and weights(See Figures Appendix for example of use of C001)
700
AEI
Equipment Information Summary
To provide summary information on equipment type and count
800
EI
Automatic Equipment Identification
To identify individual equipment and its sequence number for automatic identification
To specify quantity information
To specify physical measurements or counts, including dimensions, tolerances, variances, and weights(See Figures Appendix for example of use of C001)
To specify pertinent dates and times
1100
TSI
Automatic Equipment Tag Status Information
To indicate the status of an automatic equipment identification tag and associated information
To identify and answer yes and no questions, including the date, time, and comments further qualifying the condition
1300
LQ
Industry Code Identification
To identify standard industry codes
To specify quantity information
To specify pertinent dates and times
To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)