Comtech EF Data UT-4579 User Manual
UT-4579
X-Band Up Converter
Installation and Operation Manual
Part Number MN/UT4579.IOM
Rev. 0
Errata A
Comtech EF Data Documentation Update
Subject:
Date:
Document:
Part Number:
Collating Instructions:
Comments:
The following changes provide updated information for Table 1. This information will be
incorporated into the next revision.
Changes to Table 1. UT4579 X-Band Up Converter Specifications
January 31, 2003
UT4579 X-Band Up Converter, Installation and Operation Manual,
Rev. 0, dated Nov. 20, 2002
MN/UT4579.EA0.DOC
Attach this page to page 3.
Change Specifics:
IF Input
Range
Transfer
IF Bandwidth
Note 1. Please contact factory with specific requirements.
Ripple
Table 1. UT-4579 X-Band Up Converter Specifications
52 to 88 or 104 to 176 MHz, optional 50 to 90 MHz or
100 to 180 MHz, see Note 1
± 0.25 dB (± 18 MHz), optional ± 20 MHz, see N ote 1
0.75 dB (± 36 MHz), optional ± 40 M Hz, see N ote 1
36 or 72 MHz, optional 40 or 80 MHz, se e Note 1
Filename: T_ERRATA 1
Comtech EF Data is an ISO 9001
Registered Company.
UT-4579
X-Band Up Converter
Installation and Operation Manual
Part Number MN/UT4579.IOM
Rev. 0
Nov. 20, 2003
Copyright © Comtech EF Data, 2001. All rights reserved. Printed in the USA.
Comtech EF Data, 2114 West 7th Street, Tempe, Arizona 85281 USA, (480) 333-2200, FAX: (480) 333-2161.
UT4579 X-Band Up Converter MN/UT4579.IOM
Preface Rev. 0
CUSTOMER SUPPORT
Contact the Comtech EF Data Customer Support Department for:
Product support or training
Information on upgrading or returning a product
Reporting comments or suggestions concerning manuals
A Customer Support representative may be reached at:
Comtech EF Data
Attention: Customer Support Department
2114 West 7th Street
Tempe, Arizona 85281 USA
480.333.2200 (Main Comtech EF Data Number)
480.333.4357 (Customer Support Desk)
480.333.2161 FAX
or, E-Mail can be sent to the Customer Support Department at:
service@comtechefdata.com
Contact us via the web at www.comtechefdata.com.
To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or
replacement:
1. Request a Return Material Authorization (RMA) number from the
Comtech EF Data Customer Support Department.
2. Be prepared to supply the Customer Support representative with the model
number, serial number, and a description of the problem.
3. To ensure that the product is not damaged during shipping, pack the
product in its original shipping carton/packaging.
4. Ship the product back to Comtech EF Data. (Shipping charges should be
prepaid.)
For more information regarding the warranty policies, see Warranty Policy, p. xii.
ii
Table of Contents
Customer Support.........................................................................................................................ii
TABLE OF CONTENTS.................................................................................................III
FIGURES......................................................................................................................VII
TABLES.......................................................................................................................VIII
About this Manual ....................................................................................................................... ix
Conventions and References.......................................................................................................ix
Metric Conversion .......................................................................................................................ix
Recommended Standard Designations ......................................................................................ix
Trademarks..................................................................................................................................ix
EMC Compliance..........................................................................................................................x
Federal Communications Commission (FCC) ........................................................................... x
Safety Compliance .......................................................................................................................xi
EN 60950....................................................................................................................................... xi
Warranty Policy..........................................................................................................................xii
CHAPTER 1. INTRODUCTION....................................................................................1
1.1 Overview..................................................................................................................................1
1.2 Functional Description........................................................................................................... 1
1.3 Physical Configuration...........................................................................................................3
1.3.1 Front Panel Display............................................................................................................ 4
1.3.2 Front Panel Test Point Samples ......................................................................................... 4
1.3.3 Prime Power Switch........................................................................................................... 4
1.4 Specifications........................................................................................................................... 5
1.5 Dimensional Envelope (UT-4579).......................................................................................... 7
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Preface Rev. 0
CHAPTER 2. INSTALLATION.....................................................................................9
2.1 Unpacking and Inspection...................................................................................................... 9
2.2 Rack Mount Installation.........................................................................................................9
2.3 Prime Power Connection......................................................................................................10
2.4 Cable Connections ................................................................................................................ 10
2.4.1 Rear Panel Connections ................................................................................................... 10
2.4.2 EIA-485/EIA-232C Interface (COM 1), Connector J1.................................................... 11
2.4.3 High Speed Bus (HSB), Connector J3............................................................................. 12
2.4.4 Summary Fault Output (RELAY), Connector P1............................................................ 12
2.4.5 Cable Connections For Non-Redundant System Operation ............................................ 13
2.4.6 Cable Connections For Redundant System Operation..................................................... 13
CHAPTER 3. SYSTEM OPERATION........................................................................15
3.1 Overview................................................................................................................................15
3.2 Switching Power ON............................................................................................................. 17
3.3 Operation............................................................................................................................... 17
3.3.1 Converter Commands ...................................................................................................... 25
3.3.2 Configuration Functions Menu........................................................................................ 26
3.3.3 Pre-select Function Menu ................................................................................................ 26
3.3.4 Monitor Status Function Menu ........................................................................................ 27
3.3.5 Current Faults Function Menu......................................................................................... 27
3.3.6 Stored Faults .................................................................................................................... 28
3.3.7 Utility Function Menu...................................................................................................... 29
APPENDIX A. REDUNDANT SYSTEM OPERATION...............................................31
A.1 Overview............................................................................................................................... 31
A.2 Backup Converter................................................................................................................ 32
A.2.1 High Speed Bus (HSB) ................................................................................................... 32
A.2.2 Detachable Modules........................................................................................................ 32
A.3 Redundant Configurations.................................................................................................. 33
A.4 Redundant System Configuration......................................................................................39
A.4.1 Initial Configuration........................................................................................................ 39
A.4.2 Automatic Configuration Verification ............................................................................ 40
A.4.3 Manual Configuration/Verification................................................................................. 42
A.4.4 Offset Adjustment........................................................................................................... 44
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A.4.5 Redundancy Systems - Converter Removal.................................................................... 44
APPENDIX B. REMOTE CONTROL..........................................................................47
B.1 Remote Control Overview................................................................................................... 47
B.2 Protocol ................................................................................................................................. 48
B.2.1 Transmission Mode......................................................................................................... 48
B.2.2 Baud Rate ........................................................................................................................ 48
B.2.3 Format ............................................................................................................................. 48
B.2.4 Character Set ................................................................................................................... 48
B.2.5 Response Timeout........................................................................................................... 48
B.2.6 Bus Inactivity Requirement............................................................................................. 48
B.3 Access Methods..................................................................................................................... 49
B.3.1 Direct Access................................................................................................................... 49
B.3.2 Indirect Access ................................................................................................................ 49
B.4 Addresses...............................................................................................................................50
B.4.1 Physical Address ............................................................................................................. 50
B.4.2 Virtual Address ............................................................................................................... 50
B.5 Message Structure................................................................................................................ 51
B.5.1 Start Character................................................................................................................. 51
B.5.2 Device Address ............................................................................................................... 51
B.5.3 Command ........................................................................................................................ 51
B.5.4 Confirmation Response................................................................................................... 51
B.5.5 Error Response ................................................................................................................ 52
B.5.6 End Of Message .............................................................................................................. 52
B.6 Command / Response Pairs................................................................................................. 53
B.6.1 Utility Commands ........................................................................................................... 53
B.6.2 Configuration Commands ............................................................................................... 56
B.6.3 Modes.............................................................................................................................. 59
B.6.4 Status Commands............................................................................................................ 61
B.6.5 Stored Alarm ................................................................................................................... 65
B.7 Error Processing................................................................................................................... 67
B.7.1 General Errors ................................................................................................................. 67
B.7.2 Configuration Errors ....................................................................................................... 67
B.7.3 Mode Errors..................................................................................................................... 67
B.7.4 Time-Outs........................................................................................................................ 67
B.8 Converter Remote Command Summary ........................................................................... 68
APPENDIX C. THEORY OF OPERATION.................................................................71
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UT4579 X-Band Up Converter MN/UT4579.IOM
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C.1 Applications..........................................................................................................................71
C.2 RF Signal Conversion..........................................................................................................72
C.3 Monitor & Control............................................................................................................... 74
APPENDIX D. MAINTENANCE AND TROUBLESHOOTING...................................75
D.1 Overview............................................................................................................................... 75
D.2 Maintenance Testing............................................................................................................76
D.2.1 Test Point Samples.......................................................................................................... 76
D.2.2 Troubleshooting .............................................................................................................. 77
D.2.3 Converter Faults.............................................................................................................. 77
D.2.4 Converter I/O Modules ................................................................................................... 79
D.3 Spare...................................................................................................................................... 79
INDEX...........................................................................................................................81
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UT4579 X-Band Up Converter MN/UT4579.IOM
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Figures
Figure 1. Front Panel...................................................................................................................... 2
Figure 2. Rear Panel (shown with TSM Module).......................................................................... 2
Figure 3. Typical Converter Functional Block Diagram (Model UT-4579 shown)...................... 2
Figure 4. Physical Configuration - Up Converter.......................................................................... 3
Figure 5. Dimensional Envelope.................................................................................................... 7
Figure 6. Cable Interconnect Diagram......................................................................................... 13
Figure 7. Non-Redundant Converter Configuration .................................................................... 14
Figure 8. Non-Redundant Converter Configuration With Transmit Switch Module (TSM-XX)
Installed................................................................................................................................. 14
Figure 9. Front Panel.................................................................................................................... 15
Figure 10. Rear Panel (with TSM Module and optional REF Output)........................................ 15
Figure 11. Keypad........................................................................................................................ 17
Figure 12. Converter Operating Command Functions................................................................. 18
Figure 13. Configuration Menu Commands - Redundancy OFF. ............................................... 19
Figure 14. Configuration Menu Commands - Redundancy ON, Backup Unit Not Selected ...... 20
Figure 15. Configuration Menu Commands - Redundancy ON and Backup Unit Selected ...... 21
Figure 16. Pre-Select Menu Commands ...................................................................................... 22
Figure 17. Monitor Status Menu Commands............................................................................... 22
Figure 18. Current Faults Menu Commands................................................................................ 23
Figure 19. Stored Faults Menu Commands ................................................................................. 23
Figure 20. Utility Function Menu Commands............................................................................. 24
Figure 21. 1:1 Redundant Configuration - Single Source IF Input w/IOM and TSM-XX Installed
............................................................................................................................................... 34
Figure 22. 1:1 Redundant Configuration Diagram - Single Source IF Input w/IOM-XX and
TSM-XX Installed ................................................................................................................ 34
Figure 23. 1:1 Redundant Configuration Diagram - Single Source IF Input with IOM-XX and
TSEQM-XX Installed ........................................................................................................... 35
Figure 24. 1:1 Redundant Configuration - Dual Source IF Input................................................ 35
Figure 25 1:1 Redundant Configuration Diagram Dual Source IF Input with IOM-XX and
TSM-XX Installed. ............................................................................................................... 36
Figure 26. 1:N Redundant Configuration with IOM-XX and TSM-XX Installed ...................... 37
Figure 27. 1:N Redundant Configuration Diagram with IOM-XX and TSM-XX Installed ...... 38
Figure 28. 1:3 Front Panel Displays ............................................................................................ 39
Figure 29. 1:3 System in AUTO Redundant Mode ..................................................................... 40
Figure 30. Converter #1 Being Backed Up.................................................................................. 41
Figure 31. Converter #1 in MANUAL, Others in AUTO............................................................ 42
Figure 32. Forced BU of Converter #1 ........................................................................................ 43
Figure 33. Typical Converter Functional Block Diagram (Model UT-4579 shown).................. 73
Figure 34. Converter Signal and Interconnecting Cable Diagram (with TSM Switching
Module)................................................................................................................................. 76
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UT4579 X-Band Up Converter MN/UT4579.IOM
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Tables
Table 1. UT-4579 Up Converter Specifications ............................................................................ 5
Table 2. Rear Panel Connectors................................................................................................... 10
Table 3. J1, 2 Wire EIA-485 Interface Pin-Out........................................................................... 11
Table 4. J1, 4 Wire EIA-485 Interface Pin-Out........................................................................... 11
Table 5. J1, EIA-232C Interface Pin-Out .................................................................................... 11
Table 6. J3, High Speed Bus Connector Pin-Out......................................................................... 12
Table 7. P1, Summary Fault Connector Pin-Out ......................................................................... 12
Table 8. Operating Functions – Front Panel ................................................................................ 16
Table 9. 4579 Up Converter Configurations................................................................................ 33
Table 10. Remote Command Summary....................................................................................... 68
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UT4579 X-Band Up Converter MN/UT4579.IOM
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ABOUT THIS MANUAL
This manual provides installation and operation information for the Comtech EF Data
UT4579 X-Band Up Converter. This is a technical document intended for earth station
engineers, technicians, and operators responsible for the operation and maintenance of
the UT4579 X-Band Up Converter.
CONVENTIONS AND REFERENCES
CAUTIONS AND WARNINGS
Indicates information critical for proper equipment function.
IMPORTANT
CAUTION
Indicates a hazardous situation that, if not avoided, may result in minor or moderate
injury. CAUTION may also be used to indicate other unsafe practices or risks of
property damage.
Indicates a potentially hazardous situation that, if not avoided, could result in
WARNING
death or serious injury.
METRIC CONVERSION
Metric conversion information is located on the inside back cover of this manual. This
information is provided to assist the operator in cross-referencing English to Metric
conversions.
RECOMMENDED STANDARD DESIGNATIONS
Recommended Standard (RS) Designations have been superseded by the new designation
of the Electronic Industries Association (EIA). References to the old designations are
shown only when depicting actual text displayed on the screen of the unit (EIA-232, EIA485, etc.). All other references in the manual will be shown with the EIA designations
(EIA-232, EIA-485, etc.) only.
TRADEMARKS
All product names mentioned in this manual may be trademarks or registered trademarks
of their respective companies and are hereby acknowledged.
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UT4579 X-Band Up Converter MN/UT4579.IOM
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REPORTING COMMENTS OR SUGGESTIONS CONCERNING THIS MANUAL
Comments and suggestions regarding the content and design of this manual will be
appreciated. To submit comments, please contact the Comtech EF Data Customer
Support Department.
EMC COMPLIANCE
This is a Class A product. In a domestic environment, it may cause radio interference that
requires the user to take adequate protection measures.
EN55022 COMPLIANCE
This equipment meets the radio disturbance characteristic specifications for information
technology equipment as defined in EN55022.
EN50082-1 COMPLIANCE
This equipment meets the electromagnetic compatibility/generic immunity standard as
defined in EN50082-1.
FEDERAL COMMUNICATIONS COMMISSION (FCC)
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. If not installed
and used in accordance with the instruction manual, it may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference; in which case, users are required to correct the interference at their
own expense.
Note: To ensure compliance, properly shielded cables for DATA I/O shall be used. More
specifically, these cables shall be shielded from end to end, ensuring a continuous shield.
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UT4579 X-Band Up Converter MN/UT4579.IOM
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SAFETY COMPLIANCE
EN 60950
Applicable testing is routinely performed as a condition of manufacturing on all units to
ensure compliance with safety requirements of EN60950.
This equipment meets the Safety of Information Technology Equipment specification as
defined in EN60950.
LOW VOLTAGE DIRECTIVE (LVD)
The following information is applicable for the European Low Voltage Directive
(EN60950):
<HAR> Type of power cord required for use in the European Community.
!
CAUTION: Double-pole/Neutral Fusing.
ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung.
International Symbols:
Symbol Definition Symbol Definition
Alternating Current.
Fuse.
Protective Earth.
Chassis Ground.
Note: For additional symbols, refer to “Cautions” listed earlier in this preface.
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UT4579 X-Band Up Converter MN/UT4579.IOM
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WARRANTY POLICY
This Comtech EF Data product is warranted against defects in material and workmanship
for a period of 2 years from the date of shipment. During the warranty period, Comtech
EF Data will, at its option, repair or replace products that prove to be defective.
For equipment under warranty, the customer is responsible for freight to Comtech EF
Data and all related custom, taxes, tariffs, insurance, etc. Comtech EF Data is responsible
for the freight charges only for return of the equipment from the factory to the customer.
Comtech EF Data will return the equipment by the same method (i.e., Air, Express,
Surface) as the equipment was sent to Comtech EF Data.
LIMITATIONS OF WARRANTY
The foregoing warranty shall not apply to defects resulting from improper installation or
maintenance, abuse, unauthorized modification, or operation outside of environmental
specifications for the product, or, for damages that occur due to improper repackaging of
equipment for return to Comtech EF Data.
No other warranty is expressed or implied. Comtech EF Data specifically disclaims the
implied warranties of merchantability and fitness for particular purpose.
EXCLUSIVE REMEDIES
The remedies provided herein are the buyer's sole and exclusive remedies. Comtech EF
Data shall not be liable for any direct, indirect, special, incidental, or consequential
damages, whether based on contract, tort, or any other legal theory.
DISCLAIMER
Comtech EF Data has reviewed this manual thoroughly to provide an easy-to-use guide
to your equipment. All statements, technical information, and recommendations in this
manual and in any guides or related documents are believed reliable, but the accuracy and
completeness thereof are not guaranteed or warranted, and they are not intended to be,
nor should they be understood to be, representations or warranties concerning the
products described. Further, Comtech EF Data reserves the right to make changes in the
specifications of the products described in this manual at any time without notice and
without obligation to notify any person of such changes.
If you have any questions regarding the equipment or the information in this manual,
please contact the Comtech EF Data Customer Support Department.
xii
Chapter 1. Introduction
UT-4579 Up
Converter
1.1 OVERVIEW
This manual provides instructions on the installation, operation and maintenance of the
UT-4579 Up Converters manufactured by Comtech EF Data Corp. Individual
specifications for each model are included in this section.
1.2 FUNCTIONAL DESCRIPTION
The UT-4579 Up Converter (Figure 1) is designed for use in communication systems, or
in satellite up-link data systems, for the transmission of SCPC, DAMA and TDMA
communication signals. The Up Converters also can be used in communications system
applications with full transponder HDTV and analog TV.
The converter is designed to be hard mounted in a standard 19-inch rack or cabinet, or to
be rack mounted using slide mechanisms provided with the converter to allow it to be
serviced without its removal from the rack. An internally mounted exhaust fan for
cooling is mounted on the rear of the chassis. An AC power connector, with an On/Off
switch, also is located on the rear on the chassis. A six-foot AC power cord is supplied
with the converter.
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All operator controls, indicators and displays for local and remote operation are located
on the front panel of the converter. Connectors for the external interface connections
(Figure 2) are located on the rear of the converter chassis. A block diagram
(Figure 3) is provided to assist the technician in the operation of the converter.
Figure 1. Front Panel
MONITOR
&
CONTROL
Figure 2. Rear Panel (shown with TSM Module)
IF INPUT
(70 or 140 MHz)
I/O MODULE
OSC
SYNTHESIZER
OSC
(7900-8400 M Hz)
CONVERTER
SIGNAL PATH
RF OUTPUT
MODULE
5/10 MH z
REF. OSC.
POWER SUPPLY
Figure 3. Typical Converter Functional Block Diagram (Model UT-4579 shown)
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1.3 PHYSICAL CONFIGURATION
Figure 4 is a top view layout of a UT-4579 Up Converter chassis with the cover removed.
The major module assemblies shown in the layout are:
Signal Path Module.
Step Loop Module.
Monitor & Control Assembly.
TX I/O Switch Module (located in the right-hand space when facing the rear of the
chassis).
Reference Oscillator Assembly.
Sum Loop Module
Power Supply Assembly
Sum M odule
Signal
Path
Monitor
& Control
Board
Switch
M odule
Power Supply
Filter
M odule
Reference
Oscillator
Step
M odule
Figure 4. Physical Configuration - Up Converter
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Introduction Rev. 0
1.3.1 FRONT PANEL DISPLAY
The front panel display is a two line, 24-character, LCD display. Each configuration
function, or operating mode, is shown on the display when the operator enters a
command into the keypad on the front panel.
1.3.2 FRONT PANEL TEST POINT SAMPLES
Two test point connections are located on the front panel for monitoring the RF output
and the IF input. An SMA connector is provided for the RF output, and a BNC connector
is provided for the IF input. There is also an optional RF LO monitor available.
1.3.3 PRIME POWER SWITCH
The On/Off prime power switch is located on the rear of the chassis adjacent to the prime
power input connector. The power switch contains a filter and dual fuse. The dual fuse
is rated for 2 amps.
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1.4 SPECIFICATIONS
Table 1. UT-4579 Up Converter Specifications
Characteristic Specification
Frequency Range
Frequency
Conversion
Step Size
Preset Channels
Stability Over Time
Stability Over Temp
IF Input
Noise Figure
Level
Range
Impedance
Return Loss
RF Output
Output Level
Intermodulation
Carrier Mute
Non–carrier Spurious
Carrier Spurious
AM to PM
Return Loss
Impedance
Transfer
Gain
Gain Adjust
Gain Stability
Ripple
Slope
External Reference
7900 to 8400 MHz
Dual, No Inversion
125 kHz standard, 1kHz optional
32 Frequencies and Gains
± 1 x 10
± 1 x 10
-9
/Day
-8
0 to 50°C
12 dB Maximum at 0 dB Attenuation
-35 dBm Typical
52 to 88 or 104 to 176 MHz
50 Ω or 75 Ω
23 dB Min. with IO Module or Switch Module
+13 dBm at 1 dB Compression
-46 dBc @ 0 dBm Output SCL
-70 dBc
-80 dBm
-65 dBc @ 0 dBm Output
0.1°/dB @ -5 dBm Out
20 dB Minimum with IO Module
18 dB Minimum with Switch Module
50 Ω
35 dB ± 2 dB
0 to 25 in 0.25 dB Steps
0.1 dB Steps Optional
± 0.25 dB/Day
± 0.25 dB (± 18MHz)
0.75 dB (± 36MHz)
0.05 dB/MHz
Input 5 or 10 MHz @ +3 dBm
Optional 10 MHz Rear Panel Reference Output
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UT4579 X-Band Up Converter MN/UT4579.IOM
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Characteristic Specification
Group Delay
Phase Noise
Linear Group Delay
Parabolic Delay
Group Delay Ripple
100 Hz
1 KHz
10 KHz
100 KHz
1 MHz
0.03 ns/MHz
0.01 ns/MHz
2
1 ns Peak-to-Peak
Limit (dBc/Hz)
-68
-79
-89
-100
-110
Typical (dBc/Hz)
-72
-82
-92
-102
-112
Remote Control (Rear Panel)
Indicators (Front Panel)
Power On
Mute
Remote
Reference
Stored Fault
Fault
Test Points (Front Panel)
RF Sample
IF Sample
Optional L.O. Sample
MTBF
Summary Alarm
Relay Closure
Power
Voltage
Frequency
Dissipation
COMM Port EIA-485 or EIA-232C
Green LED
Yellow LED
Yellow LED
Yellow LED
Red LED
Red LED
SMA, -20 dBc Nominal
BNC, -20 dBc Nominal
49,740 hrs. (calculated)
>100,000 hrs. (field experience)
Form C
90 to 250 Vac Autoranging, optional –48 Vdc
47 to 63 Hz
60 Watts
Environmental
Temperature
Altitude
Humidity
Physical
Width
Height
Depth
Weight
0 to 50° C (32 to 122° F)
10,000 Feet MSL
0 to 95 % Relative
19 Inches (48.30 cm)
1.75 Inches (4.45 cm)
22 Inches (55.90 cm)
15 Pounds (7.00 kg)
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1.5 DIMENSIONAL ENVELOPE (UT-4579)
Dimensions are shown in both inches and centimeters.
17.00
(432)
1.75”
(4.45)
UT-4579
UPCONV ERTER
SAMPLE STATUS
RF IF
POWER ON
TRANSMIT
REMOTE
ON LINE
FAULT
STORED FAULT
18.25
(46.35)
19.0
(48.3)
Figure 5. Dimensional Envelope
22.00
(55.9)
ENT
CLR
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Introduction Rev. 0
NOTES:
8
2.1 UNP ACKING AND INSPECTION
Inspect the shipping container for damage. If the shipping containers are damaged, keep
them until the contents of the shipment have been carefully inspected and checked for
normal operation.
Remove the packing list from the outside of the shipping carton. Open the carton and
remove the contents, checking the contents against the packing list. Verify completeness
of the shipment and that the unit functions correctly. If damage is evident, contact the
carrier and Comtech EF Data immediately and submit a damage report.
Chapter 2. Installation
Unpacking and Inspection 9 Rack Mount Installation 9 Prime Power Connection 10 Cable Connections 10
If the unit needs to be returned to Comtech EF Data, please use the original shipping
container.
2.2 RACK MOUNT INSTALLATION
The UT-4579 Up Converter is designed for installation in a standard 19 inch rack cabinet
or enclosure. The converter chassis requires 1-3/4 inches of panel height space.
Adequate air ventilation should be provided on both sides of the rack mounted
equipment.
If the converter is to be mounted on slides, the slides must be the Comtech EF Data rack
slides provided with the converter. Mount the slides on the sides of the converter chassis
with the mounting hardware provided. Then, install the slide rails in the rack cabinet
enclosure.
Slide the converter into the front of the rack cabinet until the rear of the front panel
contacts the mounting surface of the cabinet. Secure the converter to the rack cabinet
with four screws inserted through the converter’s front panel slotted holes.
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2.3 PRIME POWER CONNECTION
The detachable power cord mates with the AC Prime power receptacle on the rear of the
converter chassis. A power cord for connection to 90 to 125 Vac, or 205 to 240 Vac,
power sources is provided with the converter.
2.4 CABLE CONNECTIONS
Connect the signal cables to the connectors on the rear panel as shown in Figure 6. The
cable signal functions are listed in Table 2.
2.4.1 REAR PANEL CONNECTIONS
Table 2. Rear Panel Connectors
Connector Description
Prime Power AC Prime Power Input (AC POWER), Optional –48 VDC
J1: Serial Communications Interface for EIA-485 or EIA-232C COMM links (COM 1)
J2: External Reference Oscillator Input
J3: High Speed Bus (HSB)
J4: Converter IF Input (IF)
J5: Converter RF Output (RF)
J6: IF TSM Switching Loop Input (LP IN)
J7: RF TSM Switching Loop Input (LP IN)
J8: IF TSM Switching Loop Output (LP OUT)
J9: RF TSM Switching Loop Output (LP OUT)
P1: Summary Fault Output (RELAY)
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2.4.2 EIA-485/EIA-232C INTERFACE (COM 1), CONNECTOR J1
The EIA-485/EIA-232C Interface connector, J1, is 9 pin "D" type DB9F connector
socket. The pin-out specifications for EIA-485 are contained in Table 3 and Table 4. The
specification for EIA-232C is contained in Table 5. The mating connector is a DB9M.
Table 3. J1, 2 Wire EIA-485 Interface Pin-Out Table 4. J1, 4 Wire EIA-485 Interface Pin-Out
Pin # Description
1 GND; Ground
2
3
4 +RX/TX; Signal
5 -RX/TX; Signal Complement
6
7
8 +RX/TX; Signal
9 -RX/TX; Signal Complement
Note: Pins 8 & 9 are the loop to the next converter.
Pin # Description
1 GND; Ground
2
3
4 +TX; Signal
5 -TX; Signal Complement
6
7
8 +RX; Signal
9 -RX; Signal Complement
Table 5. J1, EIA-232C Interface Pin-Out
Pin # Description
1
2 TD; Transmit Data
3 RD; Receive Data
4
5 GND; Ground
6 DSR; Unit Ready - always high.
7 RTS; Request to Send. Looped to CTS.
8 CTS; Clear to Send
9
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UT4579 X-Band Up Converter MN/UT4579.IOM
Installation Rev. 0
2.4.3 HIGH SPEED BUS (HSB), CONNECTOR J3
The High Speed Bus connector, J3, is 25 pin "D" type DB25F connector socket. The pinout specifications is contained in Table 6. The mating connector is a DB25M.
Note: This is not a “straight through” cable assembly. Contact Comtech EF Data for detailed
wire drawings when cabling between converters.
Table 6. J3, High Speed Bus Connector Pin-Out
Pin # Description Pin # Description Pin # Description
1 Cntl_12 10 Aux_3 18 Cntl_3
2 Cntl_10 11 Aux_1 19 Cntl_1
3 Cntl_8 12 -Rx/Tx 20 +14V Out
4 Cntl_6 13 GND 21 +14V In
5 Cntl_4 14 Cntl_11 22 GND
6 Cntl_2 15 Cntl_9 23 Aux_2
7 Cntl_In 16 Cntl_7 24 GND
8 +14V Out 17 Cntl_5 25 +Rx/Tx
9 +14V In
2.4.4 SUMMARY FAULT OUTPUT (RELAY), CONNECTOR P1
The summary fault output connector, P1, is 9 pin "D" type DB9M connector. The pinout specifications are contained in Table 7. The mating connector is a DB9F.
Table 7. P1, Summary Fault Connector Pin-Out
Pin # Description
1 Summary Fault NC
2 Summary Fault NO
3
4
5 Ground
6 Summary Fault Com
7 External Fault Input
8
9
Notes: 1
Pin 1 to Pin 6: Fault.
Pin 2 to Pin 6: No Fault.
2
Pin 7 to Pin 5: Forced Fault. Typically used with external group delay equalizers
3
12
UT4579 X-Band Up Converter MN/UT4579.IOM
Installation Rev. 0
Prime Po wer Cord In put
5/10 MHz Ref. Osc. Input J2
Summary Fault Relay Output
Serial Comm. Interface
(EIA-485 / EIA-232C )- COM 1
High Speed Bu s (HSB)
P1
J1
J3
Power
Supply
Monitor & Control Assembly
Referenc e
Oscillat or
Fine
Step
Module
IF Outpu t (IF)
IF Loop Input (LP I N)
IF Loop Outpu t (LP OUT)
RF Input (RF)
(Not Used)
(Not Used)
J4
J6
J8
J5
J7
J9
Receive
I/O S witch
Module
RF Conve rter
Loop
Module
Figure 6. Cable Interconnect Diagram
2.4.5 CABLE CONNECTIONS FOR NON-REDUNDANT SYSTEM OPERATION
In non-redundant converter configuration the converter has an Input/Output Module
(IOM-XX) for the RF input and the IF Output. A converter with a Transmit Switch
Module may be operated in a non-redundant configuration if an IOM is unavailable.
Figure 7 is an illustration of the converter cable connections with an IOM installed.
Figure 8 is an illustration of the converter cable connections with a TSM installed.
2.4.6 CABLE CONNECTIONS FOR REDUNDANT SYSTEM OPERATION
In subsystems where a redundant converter configuration is used, the backup converter
has an Input/Output Module (IOM-XX) and the online converters have Transmit Switch
Modules (TSM-XX) which switch to the backup converter when a fault is detected.
Redundant system operation is discussed in Appendix A, Redundant System Operation.
Sum
13
UT4579 X-Band Up Converter MN/UT4579.IOM
Installation Rev. 0
IOM-XX
NO
CONNECTION
TSM-XX
IF
OUTPUT
Figure 7. Non-Redundant Converter Configuration
J3 HSB IF
J4
J4 J6 J8
LP OUTLP IN RF
J5
RFIFJ3 HSB
RF
INPUT
J5
J7 J9
LP OUTLP IN
IF OUTPUT RF INPUT
NO
CONNECTION
UP CONVERTER - TSM
IF INPUT
Figure 8. Non-Redundant Converter Configuration With Transmit Switch Module (TSM-XX) Installed
RF OUTPUT
14
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