737 Flight Crew Operations Manual
Flight Management, Navigation -
ATC Data Link
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11.34.34 D6-27370-866-EGP
Valid entry is aircraft registration number (tail number) including dash (–)
characters, if applicable.
4 Max Uplink Delay (MAX U/L DELAY)
Allows the entry of 1 to 999 seconds as directed by domestic ATC for use by the
FMC to compute message times and control message traffic.
5 ATC COMM
Display is blank when no ATC connection exists.
Displays SELECT OFF when ATC connection exists.
Push – terminates active ATC data link connections.
6 ATC INDEX
Push – displays ATC INDEX page.
7 LOGON SEND
Push –
• sends logon message to ATC center
•displays SENT
• displays RESEND if no response from ATC after 10 minutes
• displays ACCEPTED or REJECTED after ATC response.
8 Active Center (ACT CTR)
Displays four character identifier of active ATC center.
9 Next Center (NEXT CTR)
Displays four character identifier of next ATC center when known; otherwise,
blank.
10 ADS (ARM), (ACT), (INOP), (OFF)
ADS (ARM) –
• ADS on and no ADS connection exists
• displays SELECT OFF prompt.
Push –
• terminates all ADS connections and ADS reporting
• prevents ATC from requesting ADS reporting
• displays ADS (OFF)
• displays ADS SELECT ARM prompt.
September 24, 2015