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Chapter 7.

Maintenance and Troubleshooting

7.1 OVERVIEW

This appendix is intended to provide procedures to assist operator and maintenance

personnel in the checkout, maintenance and troubleshooting of the converter.

Comtech EF Data recommends that spare replacement converters be used to replace

converters removed from the system for maintenance. Troubleshooting procedures are

provided for fault isolation to the module level.

The input and output signals, the interconnecting cables and the location of the modules

are as shown in Figure 35.

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 111 112

UT-4500 Series 1
Errata A 3
Filename: T_ERRATA 2 4
Errata B 5
Redundant operation 6
CUSTOMER SUPPORT 8
Table of Contents 9
Preface Revision 2 10
Figures 13
ABOUT THIS MANUAL 15
CONVENTIONS AND REFERENCES 15
METRIC CONVERSION 15
TRADEMARKS 15
EMC COMPLIANCE 16
SAFETY COMPLIANCE 17
EN 60950 17
WARRANTY POLICY 18
Chapter 1. Introduction 19
1.2 FUNCTIONAL DESCRIPTION 20
Introduction Revision 2 21
1.3 SPECIFICATIONS 22
1.4 PHYSICAL CONFIGURATION 33
1.5 FRONT PANEL DISPLAY 34
1.7 PRIME POWER SWITCH 34
1.8 NEW IN THIS MANUAL 34
Chapter 2. Installation 37
2.4 CABLE CONNECTIONS 38
Installation Revision 2 39
UP CONVERTER - TSM 42
Chapter 3. System Operation 43
UT_4514-1 44
SW VER 4.06 SN45143513 44
3.2 SWITCHING POWER ON 45
3.3 OPERATION 45
---------SELECT 46
--CURRENT-FAULTS-MENU 46
--MONITOR-STATUS-MENU 47
----CONFIGURATION-MENU 48
---MONITOR-STATUS-MENU 50
---CURRENT-FAULTS-MENU 51
-UTILITY-FUNCTIONS-MENU 52
3.3.1 CONVERTER COMMANDS 53
System Operation Revision 2 54
3.3.7 UTILITY FUNCTION MENU 57
Chapter 4 59
Redundant System Operation 59
4.2 BACKUP CONVERTER 60
4.3 REDUNDANT CONFIGURATIONS 61
Remote Control Revision 2 62
Up Converter - IOM 63
(Backup Unit) 63
Up Converter - TSEQM 63
(On line) 63
4.4.1 INITIAL CONFIGURATION 67
CONV-01-OFFSET=+00.00-DB 69
REDUNDANCY-CONFIG?-ON 69
-CONVERTER-#-02 69
-CONVERTER-#-03 69
-ACTIVATE-BACKUP:-FORCED 71
4.4.4 OFFSET ADJUSTMENT 72
Chapter 5 75
Remote Control 75
5.2.2 BAUD RATE 76
5.2.3 FORMAT 76
5.2.4 CHARACTER SET 76
5.2.5 RESPONSE TIMEOUT 76
5.3 ACCESS METHODS 77
5.4 ADDRESSES 78
5.5 MESSAGE STRUCTURE 79
5.5.5 ERROR RESPONSE 80
5.5.6 END OF MESSAGE 80
5.5.6.1 COMMAND ENDING 80
5.5.6.2 RESPONSE ENDING 80
5.6 COMMAND / RESPONSE PAIRS 81
5.6.1.5 LCD CONTRAST 82
5.6.1.6 LCD BRIGHTNESS 82
5.6.1.9 EQUIPMENT TYPE 83
5.6.2 CONFIGURATION COMMANDS 84
5.6.2.1 F 84
5.6.2.2 ATTENUATOR 85
5.6.2.3 COLD START 85
5.6.2.4 MUTE 85
5.6.2.5 AUTO FAULT RECOVERY 86
5.6.2.6 PROGRAM PRESET 86
5.6.2.7 DISPLAY ALL PRESETS 86
5.6.2.8 CLEAR PRESET 87
5.6.2.9 SELECT A PRESET 87
5.6.3 MODES 87
5.6.3.1 REDUNDANCY MODE 87
UTOMATIC/MANUAL MODE 88
5.6.3.3 BACKUP MODE 89
5.6.4 STATUS COMMANDS 89
5.6.4.1 CONFIGURATION STATUS 89
5.6.4.2 MAINTENANCE STATUS 90
5.6.4.3 UTILITY STATUS 90
5.6.4.4 ALARM STATUS 90
5.6.4.5 SUMMARY ALARM STATUS 91
ACKED MAINTENANCE STATUS 92
ACKED UTILITY STATUS 92
5.6.4.10 PACKED ALARM STATUS 93
5.6.5 STORED ALARM 93
5.6.5.1 TOTAL STORED ALARMS 93
5.6.5.3 LIST ALL ALARMS 94
5.7 ERROR PROCESSING 95
Chapter 6 99
Theory of Operation 99
6.2 RF SIGNAL CONVERSION 100
IF INPUT 101
(70 or 140 MHz) 101
RF OUTPUT 101
(14000-14500 MHz) 101
6.3 MONITOR & CONTROL 102
Chapter 7 103
7.2 MAINTENANCE TESTING 104
7.2.2 TROUBLESHOOTING 105
7.2.3 CONVERTER FAULTS 105
7.2.3.1 PRIME POWER 105
7.2.3.3 RF CONVERTER MODULE 106
7.2.3.7 TEMPERATURE FAULT 106
7.3 SPARE 107
Index Revision 2 110
METRIC CONVERSIONS 111
Units of Length 111
Temperature Conversions 111
Units of Weight 111
480 • 333 • 2200 Phone 112
480 • 333 • 2161 FAX 112

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Comtech EF Data UT-4518E Specifiche Pagina 103

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