Honeywell International Inc. WLUWIFIM010 Benutzerhandbuch
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HIF-1472R6(1)
CWLU
CWLU
TWLU
...
AP
Aircraft Network
Airport Network
Aircraft
System
...
Aircraft
System
Figure 6-2 WLU System Diagram
7.
SYSTEM COMPONENTS
The part numbers of the components that are not supplied by Honeywell but are required for proper setup of
the WLU are given in Table 7-1.
the WLU are given in Table 7-1.
Table 7-1 Components/Parts Not Supplied by Honeywell
Component
Manufacturer
Manufacturer Part Number
Honeywell Part Number
Wi-Fi Antenna CWLU
Sensor Systems
S65-5366-715
956-0033-002
Wi-Fi Antenna TWLU
Sensor Systems
S65-5366-71S
956-0033-001
7.1.
System Functional Description
7.1.1. TWLU Functional Description
The wireless connection established between the airplane and airport networks is referred to as Gatelink.
Gatelink is a ground based WLAN network designed to connect aircraft. Gatelink networks can connect to
airline networks, etc. Gatelink is intended to be implemented at airports but may also be applied at aircraft
support facilities. Gatelink is described in the AEEC standard, ARINC 763, Aircraft Network Server System. It
is based on the IEEE 802.11 wireless standard. It is intended that aircraft shall be able to connect to Gatelink
systems and then access their airline networks, as they move to different airports. Gatelink may be
implemented by an airport authority, which then shares the resource across all airlines.
Gatelink is a ground based WLAN network designed to connect aircraft. Gatelink networks can connect to
airline networks, etc. Gatelink is intended to be implemented at airports but may also be applied at aircraft
support facilities. Gatelink is described in the AEEC standard, ARINC 763, Aircraft Network Server System. It
is based on the IEEE 802.11 wireless standard. It is intended that aircraft shall be able to connect to Gatelink
systems and then access their airline networks, as they move to different airports. Gatelink may be
implemented by an airport authority, which then shares the resource across all airlines.
7.1.2. CWLU Functional Description
The CWLU provides wireless connectivity to crew and maintenance applications within the aircraft.
Enforcement of which wireless users can use the CWLU system is performed by a combination of CWLUs and
an aircraft On-board Authentication Server that supports the RADIUS protocol with WPA2 extensions. The
CWLU is configured and radio enabled after landing or after reaching altitude threshold. The CWLU begins
sending IEEE802.11 beacons. Wireless computers detect CWLU beacons and initiate association.
Enforcement of which wireless users can use the CWLU system is performed by a combination of CWLUs and
an aircraft On-board Authentication Server that supports the RADIUS protocol with WPA2 extensions. The
CWLU is configured and radio enabled after landing or after reaching altitude threshold. The CWLU begins
sending IEEE802.11 beacons. Wireless computers detect CWLU beacons and initiate association.