User's Manual
Table Of Contents
- KH1264 ISSUE 1
- CHAPTER 1
- CHAPTER 2
- CHAPTER 3
- CONTENTS
- ILLUSTRATIONS
- Figure 1 - Transceiver (DTX-A3): Module Locations 34
- Figure 2 - Drive Control Unit (GTX-A24): Module Locations 35
- Figure 3 X-band Upmast Transceiver (DTX-A3): Functional Diagram Figure 3 38
- Figure 4 X-band Upmast Transceiver (DTX-A3): Interconnection Diagram Figure 4 39
- Figure 5 - Drive Control Unit (GTX-A24): Block Diagram 319
- CHAPTER 4
- CONTENTS
- TABLES
- ILLUSTRATIONS
- Figure 1 - Transceiver (DTX-A3): Installation Dimensions 49
- Figure 2 - Transceiver (DTX-A3): Mast Mounting 410
- Figure 3 - Transceiver (DTX-A3): Fitting Kit 411
- Figure 4 - Suggested Antenna Lifting Arrangement 412
- Figure 5 - Drive Control Unit (GTX-A24): Installation Dimensions 413
- Figure 6 - Mains Isolator: Installation Dimensions 414
- Figure 7 - Transceiver (DTX-A3): Cableform Routing 419
- Figure 8 - Drive Control Unit (GTX-A24): Cableform Routing 420
- Figure 9 - Cable Gland: Assembly 421
- Figure 10 - Transceiver (DTX-A3): External Connections 423
- CHAPTER 5
- CHAPTER 6
- CONTENTS
- INTRODUCTION 63
- PLANNED MAINTENANCE 63
- DIAGNOSTIC MAINTENANCE 64
- CORRECTIVE MAINTENANCE 611
- TRANSCEIVER (DTX-A3) 612
- Access 612
- Removal of Rotating Joint (45-750-0034-001) 612
- Replacement of Rotating Joint (45-750-0034-001) 613
- Removal of Gearbox and Motor (55-100-0273-001) 613
- Replacement of Gearbox and Motor (55-100-0273-001) 613
- Removal of Azimuth Encoder (GTX-A188) 613
- Replacement of Azimuth Encoder (GTX-A188) 613
- Transceiver (DTX-A115) - Removal 614
- Transceiver (DTX-A115) - Replacement 614
- Power Supply (45-690-0062-002) and PSU Sense PCB (DTX-A121) - Removal 615
- Power Supply (45-690-0062-002) and PSU Sense PCB (DTX-A121) - Replacement 615
- CAN Adapter PCB (NNR-A981) - Removal 615
- CAN Adapter PCB (NNR-A981) - Replacement 615
- SharpEye Azimuth Interface PCB (DTX-A151) - Removal 616
- SharpEye Azimuth Interface PCB (DTX-A151) - Replacement 616
- DRIVE CONTROL UNIT (GTX-A24) 618
- CHECKS AFTER UNIT REPLACEMENT 620
- TRANSCEIVER (DTX-A3) 612
- ILLUSTRATIONS
- CONTENTS
- CHAPTER 7
- INSTALLATION AND SERVICE REPORTS
CHAPTER 3
TECHNICAL DESCRIPTION
PHYS I CAL DESCRIPTION
TRANS CEIVER
1 The transceiver is mounted in a cast enclosure with one removable side cover that allows
access to the transceiver electronics (refer to Figure 1). The cover is fitted with a seal to
prevent the ingress of moisture, and is secured to the cast enclosure by seven bolts. A strap
attached to the cover and enclosure prevents the cover from being dropped when removed from
the enclosure.
2 The main units are:
(1) Antenna Motor and Gearbox, 55-100-0273-001
(2) Azimuth/Heading Line Encoder, GTX-A188
(3) RF Rotating Joint, 45-750-0034-001
(4) Swing Mount for the antenna, LPA-1129
(5) Transceiver, DTX-A115
(6) Power Supply, 45-690-0062-002
(7) Switch and CAN Adapter PCA Assembly, DTX-A150 comprising:
(a) CAN Adapter PCB, NNR-A981
(b)
SharpEye
TM
Azimuth Interface PCA, DTX-A151
3 The Antenna Motor and Gearbox (55-100-0273-001) is mounted on top of the cast
enclosure with the antenna turning motor facing the rear of the enclosure. The antenna is
mounted on a swing casting (LPA-1129) fitted to the top of the gearbox. The gearbox has a
hollow output shaft through which the RF Rotating Joint (rojo) passes. The output shaft also
incorporates the mounting for the Azimuth Encoder (GTX-A188), which provides angular
position information in the form of azimuth and heading line pulses.
4 The Transceiver (DTX-A115) is mounted on the side wall of the enclosure, the Power
Supply (DTX-A111) is mounted on the base of the enclosure, and the Switch and CAN
Adapter PCA Assembly (DTX-A150) is mounted on the rear end of the enclosure.
DRIVE CON TROL UNIT
5 The Drive Control Unit comprises a sheet metal rear plate which is formed to include the
top and bottom of the unit and also provides the bulkhead fixing points (refer to Figure 2).
The main sub-units, including the inverter, are bolted to the rear plate. A sheet metal
wrap-around cover is secured in position by four screws.
KH1264
Chap ter 3
Is sue 2 Page 3.3