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Summary of Contents for MCL MT4000
- Page 1 TN4000-2 Technical Note Installation Guide for MT4000 TWTA October 24, 2003 Mark Schmeichel 10/24/03 Engineering Date...
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Page 2: Table Of Contents
TECHNICAL NOTE – INSTALLATION GUIDE FOR MT4000 10/24/2003 TABLE OF CONTENTS SAFETY SUMMARY ........................ 3 General Safety Precautions ....................3 Definitions of Warnings, Cautions, and Notes ..............4 List Of Hazards ......................... 5 INTRODUCTION ........................7 HPA INSTALLATION INSTRUCTIONS ................7 Unpacking the TWTA....................... -
Page 3: Safety Summary
TECHNICAL NOTE – INSTALLATION GUIDE FOR MT4000 10/24/2003 SAFETY SUMMARY General Safety Precautions The following are general safety precautions and instructions that personnel must understand and apply during many phases of operation and maintenance to ensure personnel safety and health and the protection of property. Portions of this information may be repeated in certain chapters of this publication for emphasis. -
Page 4: Definitions Of Warnings, Cautions, And Notes
TECHNICAL NOTE – INSTALLATION GUIDE FOR MT4000 10/24/2003 Definitions of Warnings, Cautions, and Notes WARNING An operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in injury to or death of personnel. CAUTION An operating or maintenance procedure, practice, condition, statement, etc., which if not strictly observed, could result in damage to or... -
Page 5: List Of Hazards
TECHNICAL NOTE – INSTALLATION GUIDE FOR MT4000 10/24/2003 List Of Hazards The operation of this amplifier may involve some of the following hazards; any of them could result in serious harm to personnel if proper safety precautions are not taken. - Page 6 RF OVERDRIVE Drive levels as low as –17 dBm may damage the unit for the Model MT4000 depending upon the settings of the system attenuator. Please apply RF with caution. Always terminate RF input and output ports properly when AC power is supplied to the TWTA.
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Page 7: Introduction
HPA INSTALLATION INSTRUCTIONS The MT4000 system is shipped in a fully assembled condition. Several steps in the installation guide will require heavy lifting and more than one person will be required. The installation personnel should have a working knowledge of electronic and SatCom equipment. -
Page 8: Repacking The Twta
TECHNICAL NOTE – INSTALLATION GUIDE FOR MT4000 10/24/2003 Repacking the TWTA Use original packing containers if possible. Place the unit in a clean, open work area. Cover any open RF waveguide flanges with a plastic cap designed for this purpose (adhesive tape is not recommended as it quickly deteriorates, leaving a residue on the flanges). -
Page 9: Configurations Under The Hpa Top Cover
Second, through the purchase order process the Computer interface hardware configuration of the MT4000 was set to either RS232 or RS485. At this time verify that the MT4000 was ordered according to the system integrators requirements. If it was not you would have to remove the HPA cover and move the cable (W25) between J8 &... -
Page 10: Installation To Reduce Radiated Emissions
Be sure to install the HPA chassis ground braid as detailed below. Installation of TWTA Drawer into the Cabinet The following steps should be taken to insure that the MT4000 is properly installed. Refer to 43D1418 – MT4000 Interface Drawing that is included with TN4000 –7 Customer Schematics &... -
Page 11: Computer & Remote Cable Connection
TECHNICAL NOTE – INSTALLATION GUIDE FOR MT4000 10/24/2003 Computer & Remote Cable Connection Connect the Computer interface cable according to the system integrator requirements for RS232 or RS485. The Remote interface is always a RS485 interface. If a Remote Panel was ordered see its technical note for installation instructions. -
Page 12: Connection To The "User" Interface
10/24/2003 Connection to the “User” Interface The User Interface (J6) has been supplied to provide the user a way to connect the MT4000 to other equipment. This interface is a 15 position “D” connector located on the back of the MT4000. -
Page 13: Connection To The "Switchover" Interface
The Switchover Interface (J7) has been supplied to provide the user a way to connect the MT4000 to a Model D13188 switchover (or some other user supplied switchover). This interface is a 25 position “D” connector located on the back of the MT4000. The signals available are listed in the table below. -
Page 14: Cooling Duct Installation
3.11 Cooling Duct Installation See 43D1418 for interface locations. CAUTION Make sure the top cover of the MT4000 is attached; the cover is part of the cooling circuit. 3.11.1 Intake Air Temperature The air supplied to the unit must be maintained between -10°C and 50°C. The maximum must be derated at 1.9°C per 1,000 ft of altitude (i.e. -
Page 15: Chassis Ground Connection
3.11.5 Air Flow Warning Two alarms have been designed into the MT4000 to indicate that there may be a clogged air filter or some other obstruction in the cooling path. These alarms are “Tube Temperature” and “Power Supply Temperature” alarms. See the initial turn on section of TN4000-3 - Technical Note, Operation of MT4000 TWTA. -
Page 16: Clean-Up
45A0158 Diagnostic Test program. To install this program follow the directions on the cover of the CD box. Refer to of TN4000-3 - Technical Note, Operation of MT4000 TWTA, for operating procedures. The system requirements for the 45A0158 Diagnostic Test program are as follows: Microsoft®...
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