Honeywell WLUWIFIM010 Wireless LAN Unit User Manual APPLICATION

Honeywell International Inc. Wireless LAN Unit APPLICATION

Users Manual

APPLICATION TITLE SHEET DASH NO. NEXT ASSY USED ON INDEX SHEET NO. TITLE SHEET (INCLUDES REVISION DESCRIPTION) 1 TABLE OF CONTENTS 2 DOCUMENT 4 REVISIONS - ALL SHEETS ARE SAME REVISION STATUS SH REV DESCRIPTION DATE APPROVED This document is an unpublished work. Copyright 2008 Honeywell International Inc. All rights reserved Typed signatures constitute approval. Actual signatures on file at Honeywell in Redmond WA. CAD Prepared Drawing Using MSWord Software. Not to be manually altered. CONTRACT NO. ----------------- PRECIOUS METAL INDICATOR CODE: NA Honeywell International Inc. Redmond, WA 98073-9701 DRAWN Patrick Ludwig Wireless LAN Unit (WLU) System Description and Installation Manual CHECK ENGR Glenn Waddell MFG QA SIZE CAGE CODE DWG NO. REV. APVD A 97896 xxx-xxxx-xxx - APVD SCALE: NONE SHEET 1 OF 20 HIF-1472/R6 1472R6.DOT document4
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 2 HIF-1472R6(1) 1. INTRODUCTION ......................................................................................................................................................................... 4 2. REFERENCE DOCUMENTS .......................................................................................................................................................... 4 3. ACRONYMS AND ABBREVIATIONS............................................................................................................................................. 4 4. SPECIAL PRECAUTIONS .............................................................................................................................................................. 6 5. CUSTOMER ASSISTANCE ............................................................................................................................................................ 7 6. SYSTEM DESCRIPTION AND OPERATION .................................................................................................................................... 8 6.1. GENERAL ..................................................................................................................................................................................... 8 7. SYSTEM COMPONENTS ............................................................................................................................................................. 9 7.1. SYSTEM FUNCTIONAL DESCRIPTION .................................................................................................................................................. 9 7.1.1. TWLU Functional Description ........................................................................................................................................... 9 7.1.2. CWLU Functional Description .......................................................................................................................................... 9 7.2. COMPONENT DESCRIPTION ........................................................................................................................................................... 10 7.3. SYSTEM OPERATION .................................................................................................................................................................... 11 7.3.1. TWLU Operation ............................................................................................................................................................ 12 7.3.2. CWLU Operation ............................................................................................................................................................ 12 8. SYSTEM INTERFACES ............................................................................................................................................................... 13 8.1. HIGH LEVEL FUNCTIONALITY .......................................................................................................................................................... 13 8.1.1. Wireless Interface .......................................................................................................................................................... 13 8.1.2. Protocol .......................................................................................................................................................................... 13 8.1.3. Data Rate ....................................................................................................................................................................... 13 8.1.4. Frequency Assignment ................................................................................................................................................... 13 8.1.5. Power Input.................................................................................................................................................................... 13 8.1.6. Ethernet ......................................................................................................................................................................... 13 8.2. DISCRETE INTERFACES .................................................................................................................................................................. 13 8.3. POSITION PIN DISCRETES .............................................................................................................................................................. 14 8.4. ANTENNA .................................................................................................................................................................................. 14 8.5. ELECTRICAL SPECIFICATIONS .......................................................................................................................................................... 14 8.5.1. Main Connector ............................................................................................................................................................. 15 8.5.2. Signals, Power and Ground ............................................................................................................................................ 15 9. MECHANICAL INSTALLATION ................................................................................................................................................... 16 9.1. GENERAL ................................................................................................................................................................................... 16 9.2. EQUIPMENT AND MATERIALS ........................................................................................................................................................ 17 10. ELECTRICAL INSTALLATION .................................................................................................................................................. 17 10.1. GENERAL ................................................................................................................................................................................... 17 10.2. POWER REQUIREMENTS ................................................................................................................................................................ 17 10.2.1. DC Power........................................................................................................................................................................ 18 10.2.2. Ground Requirements .................................................................................................................................................... 18 11. ANTENNA INSTALLATION .................................................................................................................................................... 18 11.1. GENERAL ................................................................................................................................................................................... 18 12. FAULT ISOLATION................................................................................................................................................................ 19 12.1. GENERAL ................................................................................................................................................................................... 19 12.2. FAULT DETECTION ....................................................................................................................................................................... 19 13. DATA LOADING ................................................................................................................................................................... 20 13.1. GENERAL ................................................................................................................................................................................ 20
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 3 HIF-1472R6(1) Table of Figures FIGURE 6-1 WIRELESS LAN UNIT ............................................................................................................................................................ 8 FIGURE 6-2 WLU SYSTEM DIAGRAM ....................................................................................................................................................... 9 FIGURE 8-1 LRU CONNECTOR (J1) PHYSICAL PINOUT ......................................................................................................................... 15 FIGURE 9-1 MECHANICAL OUTLINE OF WLU ......................................................................................................................................... 17 FIGURE 11-1 EXAMPLE ERP OF THE WLU WITH SENSOR SYSTEM WI-FI ANTENNA .......................................................................... 19 Table of Tables TABLE 2-1 GOVERNMENT AND REGULATORY DOCUMENTS ..................................................................................................................... 4 TABLE 2-2 INDUSTRY STANDARDS OR SPECIFICATIONS .......................................................................................................................... 4 TABLE 3-1 ACRONYMS AND ABBREVIATIONS ........................................................................................................................................... 4 TABLE 7-1 COMPONENTS/PARTS NOT SUPPLIED BY HONEYWELL .......................................................................................................... 9 TABLE 7-2 WLU LEADING PARTICULARS ............................................................................................................................................... 10 TABLE 7-3 ENVIRONMENTAL CATEGORIES ............................................................................................................................................. 10 TABLE 7-4 POWER AND EMC CATEGORIES ........................................................................................................................................... 10 TABLE 7-5 FCC LICENSE ........................................................................................................................................................................ 11 TABLE 8-1 WLU POSITION PIN FUNCTIONS ........................................................................................................................................... 14 TABLE 8-2 CONNECTOR NAMES AND PART NUMBERS FOR WLU ......................................................................................................... 15 TABLE 8-3 LRU CONNECTOR (J1-B) PIN ASSIGN ................................................................................................................................. 15 TABLE 8-4 J1-A QUADRAX INSERT POSITIONS ...................................................................................................................................... 16 TABLE 8-5 J1-A INSERT QUADRAX PINOUT ........................................................................................................................................... 16
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 4 HIF-1472R6(1) 1. INTRODUCTION This manual gives installation instructions and theory of operation for the Wireless LAN Unit (WLU), part number 965-1702-001. It also provides interface information and interconnects diagrams to permit a general understanding of the overall system. The purpose of this manual is to help the user install, operate, maintain, and troubleshoot the WLU in the aircraft. Common system maintenance procedures are not presented in this manual. The best established shop and flight line practices should be used. 2. REFERENCE DOCUMENTS Table 2-1 Government and Regulatory Documents Publication Number Document Title Title 14 CFR Code of Federal Regulations Title 14 Program Regulations Title 47 CFR Code of Federal Regulations Title 47 which contains Federal Communication Commission Part 15, 22, and 24 Title 29 CFR Code of Federal Regulations Title 29 Program Regulations Table 2-2 Industry Standards or Specifications Publication Number Document Title ARINC-664 Aircraft Data Network ARINC-763-2 Network Server System IEEE 802.11 Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. 1999 IEEE 802.11b Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Higher-Speed Physical Layer Extension in the 2.4 GHz Band. 1999 IEEE 802.11d Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Amendment 3: Specification for operation in additional regulatory domains. June 14, 2001 IEEE 802.11g Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Amendment 4: Further Higher Data Rate Extension in the 2.4 GHz Band June 12, 2003 IEEE 802.11i Draft 3.0 Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Specifications for Enhanced Security. November 2003 RTCA DO-160D Environmental Conditions and Test Procedures. July 1997, Change 1 December 2000, Change 2 June 2001, Change 3 December 2002 RTCA/EUROCAE DO-178B/ED-12B Software Considerations in Airborne Systems and Equipment Certification December 1, 1992 Wi-Fi Protected Access Version 2.0 WPA Implemented Features of IEEE 802.11i Draft 3 3. ACRONYMS AND ABBREVIATIONS Table 3-1 Acronyms and Abbreviations Abbreviation Definition ACARS Aircraft Communication Addressing and Reporting System AEEC Airlines Electronic Engineering Committee AMG ACARS Messaging over Gatelink AMI Airline Modifiable Information ARINC Aeronautical Radio, Incorporated BITE Built-In Test Equipment CDU Control Display Unit CFR Code of Federal Regulations CIS Crew Information System CMCF Central Maintenance Computer Function CMU Communications Management Unit COTS Commercial Off The Shelf CRN Current Return Network CWLU Crew Wireless LAN Unit
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 5 HIF-1472R6(1) dB Decibel DiffServ Differentiated Services (IP) DSSS Direct-sequence-spread-spectrum EAP Extensible Authentication Protocol ESD Electrostatic discharge FAA Federal Aviation Administration FCC Federal Communications Commission FL Flight Level FSM File Server Module FTS File Transfer Service GDLM Gatelink Dataloading Manager HIRF high intensity radiated electromagnetic frequencies IEEE Institute of Electrical and Electronic Engineers IP Internet Protocol IPSec IP Security ISM Industrial, Scientific and Medical ISP Internet Service Provider JTAG Joint Test Action Group LAN Local Area Network LED Light emitting diode LRU Line-Replaceable-Unit LSAP Loadable Software Airplane Part MAC Medium Access Control MCDU Multi-purpose Control & Display Unit MS Maintenance System NAT Network Address Translation OHMF On-board Health Management Function OMS On-board Maintenance System PAT Port Address Translation PCS Personal Communication Service PHY Physical Layer QARF FOQA Data Download RADIUS Remote Authentication Dial In User Service RAM Random Access Memory RF Radio Frequency RPDU Remote Power Distribution Unit RTCA Radio Technical Commission for Aeronautics SDRAM Synchronous Dynamic Random Access Memory S.I. Standard International SMA SubMiniature version A SW Software TCP Transport Control Protocol TLS Transport Layer Security TNC Threaded Neill-Concelman TOS Type of Service (IP) TWLU Terminal Wireless LAN Unit UDP User Datagram Protocol uP Microprocessor VAC Volts AC VDC Volts DC VPN Virtual Private Network WLAN Wireless Local Area Network WLU Wireless LAN Unit Wi-Fi Wireless Fidelity (Alliance) WPA Wi-Fi Protected Access WPA2 Wi-Fi Protected Access 2 WOW Weight on Wheels
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 6 HIF-1472R6(1) 4. SPECIAL PRECAUTIONS Warnings, cautions, and notes in this manual give the data that follows: A WARNING is an operation or maintenance procedure or condition, which, if not obeyed, can cause injury or death. A CAUTION is an operation or maintenance procedure or condition, which, if not obeyed, can cause damage to the equipment. A NOTE gives data to make the work easier or gives directions to go to a procedure. All personnel who operate and do maintenance on the WLU and applicable test equipment must know and obey the safety precautions. The warnings and cautions that follow apply to all parts of this manual: WARNING: HIGH VOLTAGES MAY BE PRESENT ON SYSTEM INTERCONNECT CABLES. MAKE SURE THAT SYSTEM POWER IS OFF BEFORE YOU DISCONNECT LRU MATING CONNECTORS. CAUTION: THE SYSTEM CONTAINS ITEMS THAT ARE ELECTROSTATIC DISCHARGE SENSITIVE (ESDS). IF YOU DO NOT OBEY THE NECESSARY CONTROLS, A FAILURE OR UNSATISFACTORY OPERATION OF THE UNIT CAN OCCUR FROM ELECTROSTATIC DISCHARGE. USE APPROVED INDUSTRY PRECAUTIONS TO KEEP THE RISK OF DAMAGE TO A MINIMUM WHEN YOU TOUCH, REMOVE, OR INSERT PARTS OR ASSEMBLIES. WARNING: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES. THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE INTERFERENCE AT HIS OWN EXPENSE. WARNING: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES. ACCORDING TO FCC PART 15.203, THE DEVICE AND ANTENNAS MUST BE PROFESSIONALLY INSTALLED ACCORDING TO THESE INSTRUCTIONS OUTLINED IN THIS DOCUMENT. THE ANTENNAS OUTLINED IN THIS DOCUMENT MUST BE USED WHEN INSTALLING THE EQUIPMENT. OTHERWISE, THIS DEVICE MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. NOTE: THE TESTS IN THE FAULT ISOLATION SECTION SHOULD BE DONE BEFORE THE UNIT IS DISASSEMBLED. THESE TESTS CAN TELL THE CONDITION OF THE WLU OR MOST PROBABLE CAUSE OF ANY MALFUNCTION. SHOULD ANY MALFUNCTION OCCUR, REPAIR AS NECESSARY.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 7 HIF-1472R6(1) 5. CUSTOMER ASSISTANCE For assistance with installation, operation, or maintenance of the WLU contact your local Honeywell Dealer or regional Honeywell Customer Support Engineer. Additional assistance can be obtained from Honeywell at the following locations: Honeywell Aerospace Electronic Systems CES -- Phoenix Customer Support Engineering P. O. Box 21111 Phoenix, AZ 85036--1111 U.S.A. TEL: (602) 436--3234 FAX: (602) 436—3165 Honeywell Business, Regional and General Aviation (BRGA) [formerly Business and Commuter Aviation Systems (BCAS)] Customer Support Engineering 5353 W. Bell Road Glendale, AZ 85308--9000 U.S.A. TEL: (602) 436--4400 FAX: (602) 436--4100
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 8 HIF-1472R6(1) 6. SYSTEM DESCRIPTION AND OPERATION 6.1. General This document covers the system description and installation for the Terminal Wireless LAN Unit (TWLU), Crew Wireless LAN Unit (CWLU), and the derived Wireless LAN Unit (WLU). The WLU is a Honeywell developed common hardware platform that can be configured to provide either Terminal Wireless LAN Unit (TWLU) or Crew Wireless LAN Unit (CWLU) functions. Figure 6-1 shows an exploded view of the WLU. Figure 6-1 Wireless LAN Unit There will be three CWLUs covering the cabin/flight deck, two CWLUs covering eebays/baggage areas, and one CWLU for external coverage. A single TWLU will provide a connection between the aircraft network and airport network at an airport terminal. CWLU and TWLU communications are based on the IEEE 802.11 wireless standard. It is intended that aircraft shall be able to connect through TWLU systems and then access their airline networks, as they move to different airports. Passenger devices are not permitted to send or receive data directly through the WLU. The WLU provides NAT routing between an Ethernet based aircraft network and a ground-based network through the wireless interface. The Wi-Fi wireless interface along with separate internally and externally mounted aircraft antenna will act as 802.11 client stations and operate in IEEE 802.11b/g modes. The Ethernet will support a 10/100 Mbps interface (IEEE 802.3) and be capable of supporting up to 4 Ethernet clients. The Wi-Fi primary mode of operation will be IEEE 802.11 infrastructure mode but may also participate in ad-hoc sessions. The WLU was designed with the intent to support future changes in security, which were under development within the wireless network industry when this document was written. The WLU application software is field upgradeable via its Ethernet port. A diagram of the TWLU and CWLU typical communication links is shown in Figure 6-2.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 9 HIF-1472R6(1) CWLUCWLUTWLU...APAircraft NetworkAirport NetworkAircraft 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. 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. 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.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 10 HIF-1472R6(1) 7.2. Component Description The WLU is shown in Figure 6-1 and the WLU specifications and tolerances are listed below in Tables 7-2. Table 7-3 gives the environmental categories that the WLU is tested to. Table 7-4 gives the electromagnetic categories that the WLU is tested to. Table 7-4 gives the FCC license requirements this equipment meets or exceeds. Table 7-2 WLU Leading Particulars Parameter Specification Dimensions (maximum): Height 2.5 in. (68.5 mm) Width. 6.85 in. (174.0 mm) Length 11.5 in. (292.1 mm) Weight (maximum) 4.0 lb (2.3 kg) Power Requirements: Nominal 28 V dc Maximum 29.5 V dc Minimum 22 V dc Average Power Dissipation (DC) Less than 10 W Cooling Requirements: The WLU is passively cooled Max Operating Temp = 80 degree C Connectors: J1 See SYSTEM INTERFACES J2 See SYSTEM INTERFACES Mounting: See MECHANICAL INSTALLATION The WLU is a bolt-down package Table 7-3 Environmental Categories Test Name DO-160D Category Boeing Requirements Ground Survival Low Temperature Test 4.5.1 A1 -55°C, non-powered. Short-Time Operating Low Temperature Test 4.5.1 A1 -40°C to -15°C, over a period of 30 Minutes. Degraded operation may include no RF Tx. Operating Low Temperature Test 4.5.2 A1 -15°C Ground Survival High Temperature Test 4.5.2 A1 +85°C, unpowered. Short-Time Operating High Temperature Test 4.5.3 A1 +70°C Operating High Temperature Test 4.5.4 A1 +70°C Altitude Test 4.6.1 A1 -2,000 ft to +25,000 ft, 2 hours. Decompression Test 4.6.2 A1 +6,000 ft to +25,000 ft, reduction within 15 seconds, maintain for 10 minutes. Overpressure Test 4.6.3 A2 28 PSIA ( 196 kPa) Temperature Variation 5.0 C -15°C to +70°C; +2°C/min; 24 cycles. Humidity 6.0 A DO-160E Standard Humidity Environment, 2 cycles. Bench Handling Shock N/A N/A D6-81926 Rev G, Section 3.1 Shipping Container Shock N/A N/A D6-81926 Rev G, Section 3.2 Acceleration N/A N/A D6-81926 Rev G Section 4.1, Zone 1 (Acceleration Load Factors) Section 4.2 (Emergency Landing Loads) Vibration Boeing Req. Boeing Req. D6-81926 Section 6, Zone 4, Category C Waterproofness 10.0 W DO-160E Table 7-4 Power and EMC Categories
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 11 HIF-1472R6(1) Test Name Source Category Boeing Requirements Normal Steady State Voltage Boeing 787B3-0147 Rev C, Sect 3.3.3.1.B.5.5.1 QTPR Sect 8.2. Test (32.8VDC) exceeds SCD WLANU180 (29.5VDC) Voltage Ripple Boeing 787B3-0147 Rev C, Sect 3.3.3.1.B.5.5.2 QTPR Sect 8.4. Normal Voltage Transients Boeing 787B3-0147 Rev C, Sect 3.3.3.1.B.6.1 QTPR Sect 8.5. SCD WLANU181 requires longer transient (150mS) than Boeing 787B3-0147 Rev-C (50mS). Voltage Spike Boeing 787B3-0147 Rev C, Sect 3.3.3.1.B.6.2 which is equivalent to DO-160 (E) QTPR Sect 8.6. Supplementary Voltage Transients Boeing 787B3-0147 Rev C, Sect 3.3.3.1.1. QTPR Sect 8.7 Supplementary Trapezoidal Transients Boeing 787B3-0147 Rev C, Sect 3.3.3.2.B.7.1. QTPR Sect 8.8 Abnormal Steady-State And Abnormal Transients Boeing 787B3-0147 Rev C, Sect 3.3.3.2.B.8.1. QTPR Sect 8.9 and 8.10 DC Reverse Polarity Boeing 787B3-0147 Rev C, Sect 3.4.2. QTPR Sect 8.11 Load Equipment Influence Boeing 787B3-0147 Rev C, Sect 3.4.3. QTPR Sect 8.12 EME Related Tests Electrostatic Discharge (ESD) Susceptibility Boeing D6-16050-5 Rev C, Section 7.1 QTPR Sect 11 AF Electric Field Susceptibility - Wiring Boeing D6-16050-5 Rev C, Section 7.2.1 QTPR Sect 9.4 AF Magnetic Field Susceptibility - Wiring Boeing D6-16050-5 Rev C, Section 7.2.2 QTPR Sect 9.3 AF Magnetic Field Susceptibility - Equipment Boeing D6-16050-5 Rev C, Section 7.2.3 QTPR Sect 9.2 Conducted RF Susceptibility Boeing D6-16050-5 Rev C, Section 7.3.1 QTPR Sect 9.6 Radiated RF Susceptibility Boeing D6-16050-5 Rev C, Section 7.3.2 QTPR Sect 9.7 Ground Injected Transient Susceptibility Boeing D6-16050-5 Rev C, Section 7.4.1 QTPR Sect 10.3 Pin-Injected Transient Susceptibility Boeing D6-16050-5 Rev C, Section 7.4.2 QTPR Sect 10.1 Cable-Injected Transient Susceptibility Boeing D6-16050-5 Rev C, Section 7.4.3 QTPR Sect 10.2 Lightning Induced Multiple-Burst Transient Susceptibility Boeing D6-16050-5 Rev C, Section 7.4.4 QTPR Sect 10.4 Induced Spikes Susceptibility Boeing D6-16050-5 Rev C, Section 7.5 QTPR Sect 9.5 AF Capacitive Coupling Boeing D6-16050-5 Rev C, Section 8.1.1. QTPR Sect 9.9 AF Inductive Coupling Boeing D6-16050-5 Rev C, Section 8.1.2 QTPR Sect 9.10 RF Conducted Emissions Boeing D6-16050-5 Rev C, Section 8.2.1 X QTPR Sect 9.11 RF Radiated Emissions Boeing D6-16050-5 Rev C, Section 8.2.2 X QTPR Sect 9.12 Table 7-5 FCC License Description FCC CFR Wi-Fi Operation 47 CFR 15.247 7.3. System Operation There are no user controls located on the WLU. The TWLU and CWLUs are managed, monitored, configured, and controlled by the WLAN Manager function. WLAN Manager is hosted on the CIS-MS Server. These wireless devices need to be configured dynamically so that they comply with country regulations when the aircraft lands.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 12 HIF-1472R6(1) Boeing decides what the correct country settings need to be and agree on the parameters and rules Honeywell uses to decide when to change the configurations. Airport identifiers shall map to configuration settings. Airlines need be able to configure parameters that vary based on where the aircraft is used and security. Examples of this include which airports provide Gatelink to the airline, what the associated ESSID are, TWLU and CWLU digital certificate keys. An overview of the two modes of operation is given below. 7.3.1. TWLU Operation The TWLU radio is enabled when the aircraft is on the ground, at approved airports, that the airline has Gatelink agreements with. It is disabled while the aircraft is in the air. The WLAN Manager monitors, configures, and controls the TWLU. After an aircraft lands, the WLAN Manager: detects aircraft is on ground (Aircraft parameter:: in air) determines which airport the aircraft is at (Aircraft parameter: airport identifier parameter) looks up the airport settings in the CISS AMI configures the TWLU at that airport with: o ESSID, RF power/mode, encryption setting, etc. o Uploads necessary Gatelink public key certificate trust anchor verifies TWLU configuration and enables RF radio An aircraft lands at a Gatelink enabled airport that it is registered to use. The TWLU is configured and radio enabled after landing. The TWLU begins sending IEEE802.11 probes. Gatelink APs send beacons and probe responses. The TWLU associates with a Gatelink Access Point. IEEE802.11i/WPA2 authentication and encryption is performed. Upon successful completion, the TWLU obtains an IP address from Gatelink and begins its operation as a NAT/PAT network router. The wireless connection can roam to other Gatelink Access Points as the aircraft moves. 7.3.2. CWLU Operation The CWLAN is available during ground and cruising flight phases. CWLUs are configured to their default country settings, for operation in the air. They are disabled when the aircraft is below an altitude threshold level (e.g. 10,000 AGL). After aircraft landing, the WLAN Manager: detects aircraft is on ground (CDN parameter In Air) determines which airport the aircraft is at (CDN avionics airport identifier parameter) looks up the airport in its tables configures the CWLU: o RF power/mode, encryption setting, etc. verifies CWLU configuration enables RF radio After aircraft take off, the WLAN Manager: detects aircraft is in the air (CDN parameter In Air) disables the CWLU RF outputs configures the CWLUs to default settings: o RF power/mode, encryption setting, etc. verifies CWLU configuration after reaching altitude threshold (CDN altitude parameter, 10,000 AGL), enables CWLU RF radios
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 13 HIF-1472R6(1) An aircraft lands at an airport in a country that allows CWLAN operation. The CWLU is configured and radio enabled after landing. The CWLU begins sending IEEE802.11 beacons. Wireless computers detect CWLU beacons and initiate association. IEEE802.11i/WPA2 authentication and encryption is performed. Upon successful completion, the CWLU permits valid Wireless computers CWLAN access. 8. SYSTEM INTERFACES 8.1. High Level Functionality 8.1.1. Wireless Interface The WLU supports an 802.11b/g interface. 8.1.2. Protocol The WLU Wi-Fi interface is compatible with IEEE 802.11b/g mode. 8.1.3. Data Rate The WLU Wi-Fi interface supports all data rates specified in IEEE 802.11b and 802.11g up to a 54 mbps raw data rate. 8.1.4. Frequency Assignment The WLU Wi-Fi interface operates in the ISM Band in accordance with IEEE 802.11 specifications. 8.1.5. Power Input The power supply accommodates 28 VDC sources that meet the requirements in Table 2-3. The TWLU is capable of operating through a 300 millisecond power interrupt on the 28VDC input. 8.1.6. Ethernet The WLU provides two IEEE802.3 10/100BTX Ethernet interfaces capable of switching Ethernet traffic between them.The WLU Ethernet interfaces meet LRU link budget guidance per ARINC 664 Part 2. 8.2. Discrete Interfaces 8.2.1. The WLU supports three input discretes to configure itself. (See 8.3, Position Pin Discretes) 8.2.2. The WLU provides an open/ground discrete input interface for Default Reset. The Default Reset discrete will command the WLU to be returned to factory defaults if grounded when the WLU starts up. 8.2.3. The WLU provides an open/ground discrete input interface for powering the unit on and off with ON being the OPEN state. 8.2.4. The WLU provides an open/ground discrete output interface for indicating microprocessor valid status. 8.2.5. The WLU provides an open/ground discrete output interface for indicating Ethernet activity.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 14 HIF-1472R6(1) 8.2.6. The WLU indicates that each IEEE 802.3 interface is operational and electrically connected to another IEEE 802.3 device (or compatible) by setting to a logic high state the Ethernet Activity Discrete. 8.2.7. The WLU indicates that the selected RF Interface is operational and connected to a ground station by setting to a logic high state the RF Activity Discrete. 8.2.8. When the selected RF Interface is operational and connected to a ground device the WLU momentarily sets the RF Activity Discrete to ground to indicate network traffic on this interface. 8.2.9. The WLU provide an open/ground discrete output interface for indicating internal power rail status. 8.3. Position Pin Discretes The WLU shall have three position pins defined. The WLU shall select its IP address and core functionality (TWLU or CWLU), based on position pin grounding. Table 8-1 shows function and IP address assignments by position pin settings. Table 8-1 WLU Position Pin Functions Pin3 Pin2 Pin1 OP mode IP addr/nmask Functional Behavior open open open off-airplane 10.128.0.1 Target loader and diagnostic interfaces only open open gnd Factory Test F10.128.0.1 Factory Test Functionality open gnd open CWLU-FWD CABIN 172.20.30.2 full aircraft functions open gnd gnd CWLU-AFT CABIN 172.20.30.3 full aircraft functions gnd open open CWLU-FWD CARGO 172.20.30.4 full aircraft functions gnd open gnd CWLU-AFT CARGO 172.20.30.5 full aircraft functions gnd gnd open CWLU-AFT EXTERNAL 172.20.30.6 full aircraft functions gnd gnd gnd TWLU 172.27.60.2 full aircraft functions 8.4. Antenna The WLU uses one standard TNC female type connector for the 802.11 antenna interface. The WLU is FCC certified with multiple Wi-Fi antennas listed in Table 7-1. The RF cables used to connect the unit to the antennas should be chosen to minimize weight and signal attenuation. The Wi-Fi RF connector is labeled J2. 8.5. Electrical Specifications
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 15 HIF-1472R6(1) 8.5.1. Main Connector The WLU uses a single connector for signal and power. The connector is labeled, J1. Figure 8-1 shows the physical pinout of the main connector from the rear view. Figure 8-1 LRU Connector (J1) Physical Pinout The WLU has a main connector to provide power/ground pins, discrete pins, and quadrax inserts for two Ethernets. The baseline connector is Radiall RP58736. Power and signal wires have physical separation within the connector by using spare pins as a spatial separator. Table 8-2 Connector Names and Part Numbers for WLU 965-1702-001 Connectors Name Honeywell P/N Type Mating Connector Type J1 440-2042-002 EPX, Male EPX, Female J2 315-5186-001 TNC Female TNC Male 8.5.2. Signals, Power and Ground Table 3-2 gives a description, lists the pin number, and labels the pin as an input or output. Refer to Figure 8-1 for a diagram of the connector. Table 8-3 LRU Connector (J1-B) Pin Assign Pin Number Signal Name Comments I/O 1 Spare 2 Spare I 3 DISC_IN Spare I 4 FACTORY_DEFAULT_RST I 5 POSITION 1 I 6 POSITION 2 I 7 POSITION 3 I 8 POWER_SUPPLY_OFF I 9 uP_GOOD O 10 PRI_LAN_LINK_STAT O 11 SEC_LAN_LINK_STAT O
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 16 HIF-1472R6(1) 12 WLAN_LINK_STAT O 13 POWER_GOOD O 14 DISC_OUT_1 Spare O 15 DISC_OUT_2 Spare O 16 DISC_OUT_3 Spare O 17 JTAG_EXT_EN I 18 FL_UNPROTECT I 19 EE_UNPROTECT I 20 JTAG_AW_EXT I 21 +28VDC RTN GND 22 +28VDC I 23 CHASSIS_GND GND 24 JTAG_TDO_EXT O 25 GND 26 JTAG_TCK_EXT I 27 GND 28 JTAG_TDI_EXT I 29 GND 30 JTAG_TMS_EXT I Table 3-3 gives the name and position and describes where the Ethernets are located on the main connector. Table 8-4 J1-A Quadrax Insert Positions Position Name Description 1 Eth1 (Primary) CIS Server Port 2 (Filled with alum. Plug) 3 Eth2 (Secondary) CWLU Port Table 3-4 gives the name and position of the Ethernet pins to describe how they will be electrically connected. Table 8-5 J1-A Insert Quadrax Pinout Quadrax Pin Signal Labels 1 TX+ PRI_10_100_TX_A/SEC_10_100_TX_A 2 RX+ PRI_10_100_RX_A/SEC_10_100_RX_A 3 TX- PRI_10_100_TX_B/SEC_10_100_TX_B 4 RX- PRI_10_100_RX_B/SEC_10_100_RX_B Shell Shield Ground 9. MECHANICAL INSTALLATION 9.1. General This section contains information on the necessary information to mount the WLU. Figure 9-1 shows the WLU mounting hole dimensions, as well as the mechanical outline. The depth or protrusion of the J1 and J2 connectors are 0.78 inches maximum. The WLU is a bolt-down low profile package with the footprint defined in ARINC 763.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 17 HIF-1472R6(1) Figure 9-1 Mechanical Outline of WLU 9.2. Equipment and Materials The TWLU should be mounted with six screws and washers. The necessary screws and washers will be certified by Boeing to be flight worthy. 10. ELECTRICAL INSTALLATION 10.1. General These sections give electrical installation procedures, power distribution, and interconnect information for the WLU. Procedures for proper shield, power, and signal grounding are also provided in this section. In addition, procedures for the various buses are included. 10.2. Power requirements The information necessary to provide the electrical interconnects is contained in the following paragraphs.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 18 HIF-1472R6(1) 10.2.1. DC Power The aircraft DC power supply must be 28 V DC (nominal). The normal minimum and maximum voltages permitted are 22 and 29.5 V DC respectively. The maximum current drawn by WLU is 0.32 +/- 0.03 Amps at 28 VDC, equivalent to a maximum power consumption of 10 watts. 10.2.2. Ground Requirements Proper grounding is a key factor in ensuring proper system operation under normal conditions, high intensity radiated electromagnetic frequencies (HIRF), and lightning environments. You must obey this section to satisfy these requirements. NOTE: HIRF and lightning requirements dictate that the shielded wires meet the requirements of Shielded Grounds. Installation of this system into aircraft manufactured prior to the FAA requirements adheres to these practices whenever feasible. All electrical conductors, terminals posts and component parts that are not at ground potential shall be insulated or otherwise protected to prevent hardware from creating a short circuit or a spark ignition source. The WLU is designed to be grounded by the chassis to the ground structure directly. The WLU allows a total DC voltage drop of less than or equal to 0.7VDC for the 28V DC return path to the RPDU. 11. ANTENNA INSTALLATION 11.1. General WARNING: This equipment complies with FCC radiation exposure limits set forth for uncontrolled environment. This equipment must be installed and operated with a minimum distance of 20 cm between the radiator/antenna and your body. This section provides general guidelines for installing Wi-Fi antennas with the WLU. Due to the wide variation of wireless regulations from country to country, the exact model antennas to be used with the WLU are left to the customer/installer and country regulations. Honeywell has certified the Sensor Systems antennas listed in Table 7-1. The maximum power output of the TWLU before cable loss is equal to 18 dBm. The RF cable used between the TWLU and antenna is should have insertion of approximately 3 dB. The maximum gain of the Wi-Fi Antenna listed in Table 7-1 is equal to 5 dBi. Figure 11-1 shows an overall diagram representing the gain and loss of the system. The maximum Effective Radiated Power (ERP) at the antenna should be 20 dBm if installing an antenna other than the Wi-Fi antennas listed in Table 7-1.
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 19 HIF-1472R6(1) WLU18 dBm output3 dB cable loss{5 dB antenna gainERP = 20 dBm Figure 11-1 Example ERP of the WLU with Sensor System Wi-Fi antenna 12. FAULT ISOLATION 12.1. General This section describes the built-in test equipment (BITE) function for the WLU. System BITE contributes to a number of maintenance functions: Detection of internal and external faults Reporting failure status in the air and on the ground Ground test capability for isolating faults, performance verification, and system level testing. 12.2. Fault Detection The WLU detects faults using continuous monitors in all system modes where the fault is detectable. The WLU continuously monitors for internal hardware, software and interface faults and sends fault messages via WLAN Manager, when they occur. The WLU automatically detects each fault condition that causes either: One or more digital output signals to be identified as failed or invalid Loss or significant degradation in other outputs to other systems. A fault is defined and set for each of the test components. Fault Monitor Data may include up to 600 characters of free text to add details relevant to failures. The continually monitored tests cover the following components: Power Supply (fault if power supply output is outside accepted range) Processor (fault if processor error or overheat condition occurs) Memory (volatile and non-volatile, fault if memory error occurs) Software execution (fault is software error occurs) Configuration (fault if configuration is corrupted)
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO. REV: SHEET 20 HIF-1472R6(1) Radio Functional (fault if Radio doesn’t respond to processor) Ethernet interface (fault if interface is down) Discrete interfaces (fault is interfaces are in invalid configuration) WLAN Manager Authentication State (fault if Manager authentication fails) WLAN Authentication State (fault if WLAN authentication fails) WLAN Encryption State (fault if encryption fails) WLAN Connection State (fault if connection fails) Gatelink Connection State (fault if connection fails when Gatelink is available) Router State(fault if router function fails in TWLU when Gatelink is connected) DHCP State (fault if DHCP client in TWLU does not get IP address from Gatelink Bridge State (fault if bridge function in CWLU fails) 13. DATA LOADING 13.1. General The WLU applications are data loaded on to the WLU directly by a ARINC 615A data loader. The WLAN Manager must first notify the TWLU that the aircraft is in Maintenance Mode, before an aircraft data load is accepted. Data loading is performed on the aircraft by the CIS Server Data Loader application, while in maintenance mode. It can also be performed off the aircraft with a Data Loader.

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