User's Manual

UL-801 Installation Manual
Page 1
23-20-06 15 December 2011
Description and Operation
1. Description
The UL-801 Airborne Datalink provides an air-to-ground two-way digital datalink that meets
the need for specific air-to-ground communications. UniLink communicates with multiple
ground-based Datalink Service Providers (DSP) using a VHF radio and/or SatCom
telephony-based system. The UL-801 contains an internal VHF Data Radio (VDR).
NOTE: Both DSP and DLSP are used as acronyms for Datalink Service Providers.
The Datalink system consists minimally of an FMS, a CDU/MCDU, the UL-801, a
transmission medium, such as a VDR or SatCom, and a configuration module. The UL-801
supports connections with up to three FMSs and one remote CDU, and connections to a
VDR; and peripheral devices, such as UASC multifunction displays (MFDs) (including the
MFD-640 and Electronic Flight Instrument-890R (EFI-890R) displays) and a printer.
This Installation Manual applies to both FANS-enabled and non-FANS-enabled UniLink
systems unless otherwise noted.
UniLink capabilities include:
• Future Air Navigation System (FANS)
• Controller-Pilot Datalink Communications (CPDLC) messaging
• Automatic Dependent Surveillance - Contract (ADS-C)
• CVR/CVFDR Output for datalink recording
• OOOI (Out-Off-On-In) reporting
• Automatic position reporting
• Fight planning route uplinks
• Aircraft triggered events
• Clearances/Requests
− Pre-departure
− Oceanic
− Pushback
− Expected Taxi
• Textual and graphical color weather maps or depictions in both low and high resolution
formats
• Digital Automatic Terminal Information System (D-ATIS, which is sometimes referred
to as ATIS)
• Terminal Weather Information for Pilots (TWIP)
• Free Text messaging
• Special Status reports (for example, delays, ETA updates, and diversions).