User's Manual

UniLink UL-800/801
Operator’s Manual
23-20-06.01 61
December 2011
Message Status Descriptions
NEW
The uplink is available in the log and has not been
viewed.
OLD
The uplink has been viewed and does not require and
acknowledgement.
ACK RQD
The uplink has been viewed and the ACARS ATS
facility requests that the crew manually acknowledge
receipt of the message.
ACKED
The uplink has been viewed and an acknowledgement
has been sent.
SENT
The downlink has been successfully transmitted at the
indicated time.
SENDING
The downlink is being transmitted via the indicated
medium (VHF, SAT, TEL)
DEFERRED
The downlink message lacks priority for immediate
transmission and is deferred pending availability of
other downlink messages with which it can be bundled
for transmission.
EXPIRED
The downlink message ceased being valid or useful
before it could be successfully transmitted (as
determined by the downlink message timer).