SOLICITATION NO. DTFAWA-08-R-00006
Attachment J-1 – DUAT Service Specification FAA-E-2901C
DUAT Service Access is defined as the probability that any attempt to access the DUAT Service made by an authorized user will result in a connection providing reliable bi-directional data transfer. DUAT Service Access must  be 95 percent or greater.
A transaction begins when the authorized user is connected with the DUAT Service and the system is awaiting user input or command. The DUAT Service must allow a single transaction to consist of multiple functions; such as the provision of text or graphical weather information, the filing of one or more flight plans, and the performance of other DUAT Service functions . A transaction is terminated upon (a) user request (log-off), (b) inactivity time expiration, (c) loss or failure of the connection, or by the DUAT Service provider in accordance with the transaction termination requirements of this specification.
The DUAT Service must  allow the user to terminate the transaction at any time.
The DUAT Service must  terminate the transaction if there is no user input for a total of three minutes from the user's last keyboard/mouse entry.
The DUAT Service must  prompt the user for entry if there has been no keyboard/mouse activity for two minutes.
188.8.131.52.184.108.40.206 Termination Disconnect