UPS Aviation Technologies AT7000 User manual

AT7000
Mode S Transponder
Installation Manual
December 14, 2001
560-0405-00 Rev. --

Installation Manual AT7000 Mode S Transponder
560-0405-00 Rev –
December 14, 2001
2001 by UPS Aviation Technologies All rights reserved.
Printed in the USA
UPS Aviation Technologies CAGE Number 0XCJ6
No part of this document may be transmitted, reproduced, or copied in any form or by any means
without the prior written consent of UPS Aviation Technologies.
UPS Aviation Technologies and Aviation Technologies are registered trademarks of UPS Avia-
tion Technologies
UPS Aviation Technologies 2345 Turner Rd., SE
PO Box 13549 Salem, OR 97302
Salem, OR 97309 USA
Phone: [phone]
800.525.6726
Fax: [phone]
In Canada: 800.654.3415

Installation Manual AT7000 Mode S Transponder
560-0405-00 Rev –
December 14, 2001
HISTORY OF REVISIONS
Revision EN Date Description
-- EN7149 Dec 14/01 Initial Release
ORDERING INFORMATION
To receive additional copies of this publication, order part # 560-0405-00, AT7000 Mode S
Transponder Installation Manual.
RELATED DOCUMENTS
AT7000 Mode S Transponder Factory Service Manual 560-7016-000

Installation Manual AT7000 Mode S Transponder
560-0405-00 Rev –
December 14, 2001
NOTES

Installation Manual AT7000 Mode S Transponder
560-0405-00 Rev –
December 14, 2001 Page i
© 2001 by UPS Aviation Technologies Inc.
Record of Revisions
For each revision, insert the revised pages into your manual and discard the replaced
pages. On this record page, note the revision number and date, date pages were inserted
into the manual, and the initials of the person inserting the pages.
Revision
Number Revision Date Date Inserted By Revision Number Revision Date Date In- serted By

AT7000 Mode S Transponder Installation Manual
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© 2001 by UPS Aviation Technologies Inc.
List of Effective Pages
Section and Page Revision
Title 00
Copyright page 00
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Table of Contents 00
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Sec. 5. Equipment Rem. and Rep.
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Sec. 6. Operation
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Sec. 7. Specifications
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Installation Manual AT7000 Mode S Transponder
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© 2001 by UPS Aviation Technologies Inc.
TABLE OF CONTENTS
SECTION 1 -INTRODUCTION ................................................................................................................ 1
1.1 ABOUT THIS MANUAL .......................................................................................................................1
1.2 SYSTEM DESCRIPTION........................................................................................................................1
1.2.1 System Overview........................................................................................................................1
1.2.2 AT7000 Mode S Transponder ....................................................................................................2
1.2.3 Control Panel.............................................................................................................................2
1.2.4 Antenna......................................................................................................................................2
1.2.5 Altitude Source...........................................................................................................................2
1.2.6 Data Link Processor ..................................................................................................................2
1.2.7 TCAS ..........................................................................................................................................2
1.3 FUNCTIONAL OPERATION...................................................................................................................3
1.4 REGULATORY COMPLIANCE...............................................................................................................3
1.4.1 CFR 47, Part 87 (FCC)..............................................................................................................3
1.4.2 TSO C112...................................................................................................................................3
1.4.3 ARINC 718-4 and ARINC 718A.................................................................................................3
SECTION 2 -TRANSPONDER DESCRIPTION ..................................................................................... 5
2.1 GENERAL ...........................................................................................................................................5
2.2 OVERVIEW.........................................................................................................................................5
2.3 AT7000 PRODUCT SUMMARY............................................................................................................6
2.3.1 Gillham to A429 Serial Data Converter.....................................................................................7
2.3.2 Inputs to the AT7000 for Extended Squitter Position Reports....................................................7
2.4 DISPLAY / CONTROL ..........................................................................................................................8
2.5 DATA LOADER INTERFACE.................................................................................................................8
2.6 BUILT-IN TEST EQUIPMENT (BITE) AND DIAGNOSTICS.....................................................................8
2.6.1 Self-Tests....................................................................................................................................8
2.6.2 Status Indicators.........................................................................................................................9
2.6.3 Maintenance and BITE Data......................................................................................................9
SECTION 3 -INSTALLATION................................................................................................................ 11
3.1 PRE-INSTALLATION INFORMATION ..................................................................................................11
3.2 EQUIPMENT REQUIRED.....................................................................................................................11
3.3 MECHANICAL INSTALLATION...........................................................................................................11
3.3.1 Location of LRUs .....................................................................................................................11
3.3.2 AT7000 Provisions...................................................................................................................11
3.3.3 Antenna Provisions ..................................................................................................................12
3.4 ELECTRICAL INSTALLATION.............................................................................................................13
3.4.1 Middle Plug..............................................................................................................................17
3.4.2 Bottom Plug..............................................................................................................................21
3.4.3 Program Pin Inputs..................................................................................................................23
3.4.4 SDI Program............................................................................................................................23
3.4.5 Max Airspeed Program............................................................................................................23
3.4.6 Antenna Delay Program ..........................................................................................................24
3.4.7 Antenna Program.....................................................................................................................25
3.4.8 Antenna BITE Program............................................................................................................25
3.4.9 Altitude Type Selection.............................................................................................................25
3.5 INTERFACE CONNECTIONS ...............................................................................................................25
3.5.1 Discrete I/O Levels...................................................................................................................25
3.5.2 Gillham Code Altitude Input....................................................................................................26
3.5.3 Synchro Altitude Input..............................................................................................................26
3.5.4 ARINC 706 Air Data Inputs.....................................................................................................26
3.5.5 Control Panel Input..................................................................................................................26
3.5.6 Standby Input ...........................................................................................................................27
3.5.7 Air/Ground Discrete Inputs......................................................................................................27
3.5.8 Functional Test Discrete Input.................................................................................................27
3.5.9 Altitude Input Selection............................................................................................................28

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3.5.10 Altitude Compare.....................................................................................................................28
3.5.11 Transponder Fail Outputs........................................................................................................28
3.5.12 Flight ID Input.........................................................................................................................29
3.5.13 Data Link Interface..................................................................................................................29
3.5.14 Downlinked Aircraft Parameters (DAPS)................................................................................29
3.5.15 TX / XT Coord TCAS Interface ................................................................................................29
3.6 DATA LOADER INTERFACE...............................................................................................................30
SECTION 4 -POST-INSTALLATION CHECKOUT............................................................................ 33
4.1 KEY PIN ORIENTATION ....................................................................................................................33
PRE-INSTALLATION CHECKOUT PROCEDURES...........................................................................................33
SECTION 5 -EQUIPMENT REMOVAL AND REPLACEMENT....................................................... 35
5.1 REMOVAL.........................................................................................................................................35
5.1.1 Transponder.............................................................................................................................35
5.2 REPLACEMENT.................................................................................................................................35
5.2.1 Transponder.............................................................................................................................35
SECTION 6 -OPERATION...................................................................................................................... 37
SECTION 7 -SPECIFICATIONS ............................................................................................................ 39
7.1 ELECTRICAL.....................................................................................................................................39
7.2 PHYSICAL.........................................................................................................................................39
7.3 ENVIRONMENTAL.............................................................................................................................40
7.4 TRANSPONDER PERFORMANCE ........................................................................................................40
SECTION 8 -LIMITATIONS................................................................................................................... 43
8.1 INSTALLATION .................................................................................................................................43
SECTION 9 -TROUBLESHOOTING..................................................................................................... 45
9.1 INTRODUCTION AND OVERVIEW.......................................................................................................45
9.1.1 Introduction..............................................................................................................................45
9.1.2 Overview ..................................................................................................................................45
9.2 INTERFACES .....................................................................................................................................46
9.2.1 Buttons .....................................................................................................................................46
9.2.2 Test Status LEDs......................................................................................................................46
9.2.3 Maintenance Display Pages.....................................................................................................46
9.2.4 Normal Mode ...........................................................................................................................51
9.2.5 Discrete Inputs.........................................................................................................................54
9.2.6 External Interfaces...................................................................................................................55
9.3 TROUBLESHOOTING .........................................................................................................................59
9.3.1 System Test...............................................................................................................................59
SECTION 10 - PERIODIC MAINTENANCE...................................................................................... 61
10.1 MAINTENANCE.................................................................................................................................61
SECTION 11 - ENVIRONMENTAL QUALIFICATIONS................................................................. 63

Installation Manual AT7000 Mode S Transponder
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© 2001 by UPS Aviation Technologies Inc.
LIST OF ILLUSTRATIONS
FIGURE 1 -- AT7000 SYSTEM BLOCK DIAGRAM............................................................................................. 1
FIGURE 2 – FRONT PANEL OF AT7000............................................................................................................ 6
FIGURE 3 – POTENTIAL EQUIPMENT LOCATIONS........................................................................................... 11
FIGURE 4 - ARINC 600 4 MCU MOUNTING TRAY....................................................................................... 12
FIGURE 5 – TOP PLUG INTERCONNECT DESCRIPTION (SHEET 1) ................................................................... 13
FIGURE 6 –TOP PLUG CONNECTOR LAYOUT ................................................................................................. 15
FIGURE 7 – MIDDLE PLUG INTERCONNECT DESCRIPTION (SHEET 1)............................................................. 17
FIGURE 8 – MIDDLE PLUG CONNECTOR LAYOUT ......................................................................................... 19
FIGURE 9 – BOTTOM PLUG INTERCONNECT DESCRIPTION ............................................................................ 21
FIGURE 10 – BOTTOM PLUG CONNECTOR LAYOUT....................................................................................... 22
FIGURE 11 – DATA LOADER.......................................................................................................................... 32
FIGURE 12 – REMOVAL OF UNIT FROM TRAY................................................................................................ 35
FIGURE 13 – AT7000 DIMENSIONS............................................................................................................... 40
FIGURE 14. AT7000 MODE S TRANSPONDER .............................................................................................. 45
FIGURE 15. MAINTENANCE DISPLAYS.......................................................................................................... 47
LIST OF TABLES
TABLE 1 - EQUIPMENT FOR INSTALLATION ................................................................................................... 11
TABLE 2 - ANTENNA MINIMUM SPACING...................................................................................................... 12
TABLE 3 - SDI PROGRAM PINS..................................................................................................................... 23
TABLE 4 - MAX AIRSPEED PROGRAM........................................................................................................... 24
TABLE 5 - ANTENNA DELAY PROGRAM ....................................................................................................... 24
TABLE 6 - ALTITUDE TYPE SELECTION ........................................................................................................ 25
TABLE 7 - DATA LOADER PLUG ................................................................................................................... 30
TABLE 8 - STATUS LEDS SUMMARY............................................................................................................ 46
TABLE 9 - TROUBLESHOOTING GUIDE.......................................................................................................... 60
TABLE 10 - ENVIRONMENTAL REQUIREMENTS ............................................................................................. 63

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© 2001 by UPS Aviation Technologies Inc.
NOTES

Introduction AT7000 Mode S Transponder
560-0405-00 Rev –
December 14, 2001 Page 1
© 2001 by UPS Aviation Technologies Inc.
Section 1 - Introduction
The AT7000 is a Mode S Data Link Transponder that provides surveillance functions to
ground-based and airborne interrogators. It responds to ATCRBS interrogations as well.
1.1 About This Manual
This manual describes the installation of the UPS Aviation Technologies AT7000 Mode
S Transponder along with a description of the other units that connect to the transponder.
This manual is intended for use by persons certified by the Federal Aviation Administra-
tion (FAA) to install avionics devices. It includes installation and checkout procedures
for the UPS Aviation Technologies AT7000 Mode S Transponder.
1.2 System Description
1.2.1 System Overview
Figure 1-- AT7000 System Block Diagram
AT7000 System Block Diagram
AT7000
Mode S Transponder
TCAS
ATC Radar
Interrogator
Control Panel
TCAS*
Central
Maintenance
Computer
(CMC)*
*Optional (Not
supported in initial
release)
*Optional
Airborne System
1090 Receiver
(ADSB)
ADSB
Airborne Data
Link Processor
(ADLP)*
*Optional
Air Data
Computer
(ADC)

AT7000 Mode S Transponder Introduction
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December 14, 2001
© 2001 by UPS Aviation Technologies Inc.
1.2.2 AT7000 Mode S Transponder
The AT7000 transponder is packaged in a 4-MCU (Modular Concept Unit) outlined as
defined in ARINC Characteristic 600-7. The basic mechanical chassis is constructed of
lightweight aluminum alloy sheet metal. The unit uses forced air cooling per ARINC 404
or 600. ARINC standard LRU restraints are used as means of holding the transponder in
the mounting rack or tray. The maximum weight of the transponder is 11.5 pounds (5.2
kilograms). The rear connector receptacle is a size 2-shell assembly with inserts and
contacts as defined in ARINC Characteristic 718-4/718A. The unit features a fixed car-
rying handle, self-test switch with discrete LED STATUS annunciators, and a LCD dis-
play for system setup and verification.
1.2.3 Control Panel
The control panel for the Mode S System provides for mode control of the ATC Trans-
ponders. Communication with the Mode S Transponders is accomplished via an ARINC
429 bus as defined in ARINC Characteristic 718. Control panel functions includes a
4096-ident code selection and display, altitude source and mode control switch, and se-
lection between two onboard transponders. The control panel also input FID into the
transponder.
1.2.4 Antenna
When installing the transponder antennas, a TSO’d antenna should be selected. Two an-
tennas are required. Having two antennas (one on top of the aircraft and one on the bot-
tom) provides the best coverage for receiving interrogations from ground radar, planes
above, and below. L-Band type recommended antennas are P/N S65-5366-7L, manu-
factured by Sensor Systems and P/N DM N150-2, manufactured by DM Antenna Tech-
nologies.
1.2.5 Altitude Source
The transponder contains dual inputs for acceptable types of altitude sources. The pin
configuration selection specifies which of the two inputs are used for obtaining altitude
information. Altitude sources are ADC (429), Synchro, or Gillham. The input uses a
ground/open logic level, where a ‘ground’ logic level specifies altitude source #2, and an
‘open’ logic level specifies altitude source #1.
1.2.6 Data Link Processor
Four high speed ARINC 429 busses are provided for interfacing to a Mode S Airborne
Data Link Processor (ADLP). The Comm A/B input and Comm A/B output busses are
used for transferring messages to and from the ADLP.
1.2.7 TCAS
The AT7000 contains an interface that allows it to work with an onboard TCAS II sys-
tem. The interface consists of two ARINC 429 high speed data busses, an XT Coordina-
tion bus that is an output from the transponder to TCAS, and a TX Coordination bus that
is an output from TCAS to the transponder.

Introduction AT7000 Mode S Transponder
560-0405-00 Rev –
December 14, 2001 Page 3
© 2001 by UPS Aviation Technologies Inc.
1.3 Functional Operation
Mode S System operation begins when aircraft power is applied. An initial self-test is
performed automatically upon power-up and is completed in approximately one second.
Self-testing of the transponder occurs continuously while powered on. If a transponder
failure occurs, it is indicated on the control panel. Other failures are indicated via front
panel mounted LEDs on the transponder, however, these failure indications are not avail-
able to the pilot. All failures, whether hard or intermittent, are recorded in the trans-
ponder maintenance memory for analysis by maintenance personnel.
1.4 Regulatory Compliance
The following standards are described in relationship to the functioning and certification
of the AT7000.
1.4.1 CFR 47, Part 87 (FCC)
Aviation Services, Subpart D, Technical Requirements
1.4.2 TSO C112
The AT7000 complies with TSO C112, Air Traffic Control Radar Beacon System/Mode
Select (ATCRBS/Mode S) Airborne Equipment.
1.4.3 ARINC 718-4 and ARINC 718A
The AT7000 complies with ARINC Characteristic 718-4 and 718A, Mark 3 Air Traffic
Control Transponder. The AT7000 meets the minimum subset of ARINC 718A and is
software upgradeable for most DAPS parameters. See Transponder Description, Section
2.

AT7000 Mode S Transponder Introduction
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© 2001 by UPS Aviation Technologies Inc.
NOTES

Installation Manual System Description
560-0405-00 Rev –
December 14, 2001 Page 5
© 2001 by UPS Aviation Technologies Inc.
Section 2 - Transponder Description
2.1 General
This section defines the system functionality for the AT7000 Mode S transponder. It is a
Level 2es transponder indicating that it performs basic Mode S functions, and is also ca-
pable of transmitting extended squitters with encoded aircraft information to support
ADS-B functions. The unit is also upgradeable to ICAO Level 5 (Downlinked Aircraft
Parameters, (DAPS)) capability through software upgrades.
2.2 Overview
The AT7000 transponder is a full-featured Mode S transponder in an ARINC 600 form
factor that has been designed with a built-in capability for future growth. This trans-
ponder is compatible with Change 7 TCAS systems, as well as UPS AT ADS-B systems.
When utilized with a UPS AT Link and Display Processing Unit (LDPU), the unit serves
as an integral part of a complete ADS-B system. ADS-B is currently certified for use as a
traffic surveillance system.
The AT7000 responds to both the Air Traffic Control Radar Beacon System (ATCRBS),
and Mode S (Mode Select) interrogations. The AT7000 meets all requirements described
in DO-181B and EUROCAE ED-73A. This also meets Eurocae elementary surveillance
requirements including SI capability (six bit Mode S sensor interrogator codes) and flight
ID transmission. Flight ID (FID) may be input to the AT7000 for extended squitter
transmission by either external serial data interface or by using a Gables transponder
control panel capable of accepting and transmitting FID information.
TCAS is fully supported with antenna diversity (top and bottom) antenna ports. The
AT7000 is designed to operate with all ARINC 718/735 and conforming TCAS II com-
puters.
To provide maximum reliability, the unit has extensive built in test and evaluation (BITE)
capabilities. This is further augmented by a LCD display on the front panel allowing for
display of descriptive messages allowing for far greater comprehensive testing and trou-
bleshooting capabilities on aircraft.
Software on board the AT7000 is certified to DO-178B Level B. Software updates can
be completed via an RS232 serial data and will be upgraded to interface with an ARINC
615 data loader. The data loader port is located on the front panel of the unit.

System Description Installation Manual
Page 6560-0405-00 Rev –
December 14, 2001
© 2001 by UPS Aviation Technologies Inc.
Figure 2– Front Panel of AT7000
2.3 AT7000 Product Summary
The transponder is an ARINC 718-4/718A mode S transponder.
General features of the transponder includes:
•ARINC 718-4/718A compliant, ARINC 600 format and interconnect, with 4
MCU size form factor
•ATCRBS and Mode S operation
•TSO-C112 certification
•Includes Comm A and Comm B operation, (Comm C, Comm D, and DAPS
capable.)
•Includes extended squitter capability
•Supports Mode S services
•Operates from 115 volts AC, 400Hz, or 28 volts DC
•Transmit power of 400 watts typical
•Includes built-in self-test and diagnostics
MAINTENANCE DISPLAY
XPDR PASS
XPDR FAIL
CTRL PNL
ALT
TOP ANT
BOT ANT
TEST
DATA LOADER
AT7000
Mode S Data Link Transponder
barcode of serial number
SN '1234567'
UPS Aviation Technologies, Salem OR USA
Model:
AT7000
PN:
430-6091 - 00 - 00
SW Mod
TSO-C112 Class 2A7, 121, 011
RTCA/DO-178B Software Level B
RTCA/DO-160D Env. Cat.
FCC ID xxxxxxx
Mode S Transponder
C
AA
D
E
AB
AC
B
A
F
G
H
J
K
L
Z
Y
X
W
V
U
T
S
R
P
N
M
AD
AE
AF
AG
AH
AJ
AK
AL
AM
AN
HW Mod
C
AA
DE
AB
AC
BA FGHJKL
ZYXWVUTSRPNM
AD
AE
AF
AG
AH
AJ
AK
AL
AM
AN
Software
Map/Database
Weight
10.0 lbs.

Installation Manual System Description
560-0405-00 Rev –
December 14, 2001 Page 7
© 2001 by UPS Aviation Technologies Inc.
2.3.1 Gillham to A429 Serial Data Converter
The AT7000 includes a Gillham code to ARINC 429 serial data converter integral to the
unit to support installation in non-ADC equipped aircraft needing serial altitude data.
This is compliant to ARINC 706-4 output.
2.3.2 Inputs to the AT7000 for Extended Squitter Position Reports
Some users of the AT7000 may not wish to install an ADLP concurrently with the trans-
ponder, but wish to output basic position reports to comply with future European re-
quirements. This may be accomplished by inputting the required ARINC labels to the
transponder. The minimum label set is as follows for airborne position squittering:
Minimal Necessary Labels
Label # Description Minimum Rate Alternate Labels
110 (120) Latitude (Fine) 5 Hz 310
111 (121) Longitude (Fine) 5 Hz 311
150 Time Word 5 Hz
140 Fractional Seconds
(should be last word of
data block)
5 Hz
130 HPL 5 Hz 247
377 Equipment ID – must be
142 0.5 Hz

System Description Installation Manual
Page 8560-0405-00 Rev –
December 14, 2001
© 2001 by UPS Aviation Technologies Inc.
Minimal Necessary Labels (Only Type 1&2 or Type 3&4 Required)
Label # Description Minimum Rate Alternate Labels
174 NS Velocity – Type Code
1&2 5 Hz 103 and 112
(or 311 and 312)
166 EW Velocity – Type
Code 1&2 5 Hz 103 and 112
(or 311 and 312)
OR
320 Magnetic Heading – Type
Code 3&4 5 Hz
210 True Airspeed – Type
Code 3&4 (from ADC) 5 Hz 206
2.4 Display / Control
The transponder is designed to work with a standard transponder control panel. The
control panel may output FID for transmissions.
2.5 Data Loader Interface
The transponder includes a front panel mounted data loader interface connector. The in-
terface connector will include an RS-232 serial interface for use with a PC. An ARINC
615 input is provisioned, but not implemented in the software for the initial product re-
lease.
2.6 Built-In Test Equipment (BITE) and Diagnostics
The transponder includes a built-in test and diagnostics to automatically test the trans-
ponder functions at system power up and monitor the operation performance during nor-
mal operation.
2.6.1 Self-Tests
The built-in tests include the following and are completed at power up of the transponder.
a) power supply voltages
b) memory checks
c) transmitter (monitor replies)
d) synthesizers
e) transponder interfaces
f) top and bottom antenna test

Installation Manual System Description
560-0405-00 Rev –
December 14, 2001 Page 9
© 2001 by UPS Aviation Technologies Inc.
2.6.2 Status Indicators
The transponder includes status indicators on the front panel of the unit that can be easily
viewed with the unit installed in its standard mounting. The purpose of the status indica-
tors is to help determine the source of a potential failure to determine the fault condition.
The status indicators includes status for the following conditions:
a) transponder pass/fail
b) control panel failure
c) top antenna failure
d) bottom antenna failure
e) altitude compare failure
The unit also has a LCD front panel display that allows for descriptive text messages to
be displayed for the purpose of determining aircraft system faults, as well as transponder
faults.
2.6.3 Maintenance and BITE Data
The transponder is capable of outputting maintenance data using the data loader interface.
An RS-232 interface is supported.
The transponder includes maintenance data that can be output on the test data interfaces.
The data includes the following:
a. aircraft system power On/Off times, aircraft Airborne/Ground times.
b. power on cycle count
c. airframe cycle count (air/ground cycle count)
d. fault identification (if applicable)

System Description Installation Manual
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© 2001 by UPS Aviation Technologies Inc.
NOTES