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Comtech EF Data DT-4572 Installation And Operation Manual

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DT-4572
X-Band Down Converter
Installation and Operation Manual
Firmware Ver. 1.3.4 and Higher
IMPORTANT NOTE: The information contained in this document supersedes all previously published
information regarding this product. Product specifications are subject to change without prior notice.
Part Number MN/DT4572.IOM / CD-MNDT4572 Revision 1

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  • Page 1 DT-4572 X-Band Down Converter Installation and Operation Manual Firmware Ver. 1.3.4 and Higher IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product. Product specifications are subject to change without prior notice. Part Number MN/DT4572.IOM / CD-MNDT4572 Revision 1...
  • Page 3 Installation and Operation Manual Firmware Ver. 1.3.4 and Higher Part Number MN/DT4572.IOM / CD-MNDT4572 Revision 1 Copyright © 2016 Comtech EF Data. 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...
  • Page 4 BLANK PAGE...

  • Page 5: Table Of Contents

    European Union Low Voltage Directive (LVD) (2006/95/EC) ......xxi European Union RoHS Directive (2002/95/EC) ..........xxi European Union Telecommunications Terminal Equipment Directive (91/263/EEC) ....................xxi CE Mark ......................xxii Product Support ................... xxii Comtech EF Data Headquarters ..............xxii Warranty Policy .................... xxii...
  • Page 6 DT-4572 X-Band Down Converter MN/DT4572.IOM / CD-MNDT4572 Table of Contents Revision 1 Limitations of Warranty ................... xxiii Exclusive Remedies..................xxiv CHAPTER 1. INTRODUCTION ............1–1 Overview ..................1–1 Functional Description ..............1–1 1.2.1 Applications ..................1–2 1.2.2 RF Signal Conversion ................1–4 1.2.3 Monitor &...
  • Page 7 DT-4572 X-Band Down Converter MN/DT4572.IOM / CD-MNDT4572 Table of Contents Revision 1 2.1.8.4 Serial Connectors ................2–4 2.1.8.5 Removable “Personality” Modules ..........2–4 2.1.8.5.1 IOM (Input/Output Module) Assemblies ......... 2–4 2.1.8.5.2 PSM (Polarity Switch Module) Assemblies ......2–5 2.1.8.5.3 TSM (Transmit Switch Module) Assemblies ......2–5 2.1.8.5.4 EQM (Equalizer Module) Assemblies ........
  • Page 8 4.2.1.2 Power Interface Module – Optional -48VDC Unit ......4–10 4.2.1.2.1 DC Operation – Replace the Fuses ......... 4–10 4.2.1.2.2 DC Operation – Apply Power ..........4–11 4.2.2 Unit Ground Connection ..............4–11 4.2.3 Operational Connections ..............4–12 4.2.3.1 DT-4572 Series Cable Connections ..........4–15...
  • Page 9 5.2.3 Get the DT-4572 Management IP Address and Firmware Information ......................5–3 5.2.3.1 Use the DT-4572 Front Panel to Get the Management IP Address and Firmware information ................5–4 5.2.3.2 Use the HTTP Interface to Find the Firmware Information ... 5–4 5.2.3.3 Use the Serial Interface to Find the Firmware Information ...
  • Page 10 DT-4572 X-Band Down Converter MN/DT4572.IOM / CD-MNDT4572 Table of Contents Revision 1 5.4.4.2 Reboot the Unit ................5–15 5.4.4.2.1 Hard-reboot the Unit from the Rear Panel ......5–15 5.4.4.2.2 Soft-reboot the Unit from the HTTP Interface ....... 5–15 CHAPTER 6. FRONT PANEL OPERATION ........6–1 Front Panel Overview ................
  • Page 11 DT-4572 X-Band Down Converter MN/DT4572.IOM / CD-MNDT4572 Table of Contents Revision 1 6.2.6.2 (PRE-SELECTS:) PROGRAM ............6–21 6.2.6.3 (PRE-SELECTS:) CLEAR ..............6–22 6.2.7 (SELECT:) UTILITY Menu Branch ............6–22 6.2.7.1 (UTILITY:) TIME (Real-Time Clock) Submenu........ 6–23 6.2.7.2 (UTILITY:) DISP (VFD Display) Submenu ........6–23 6.2.7.3 (UTILITY:) FIRMWARE Submenu ...........
  • Page 12 DT-4572 X-Band Down Converter MN/DT4572.IOM / CD-MNDT4572 Table of Contents Revision 1 7.4.2.6 Text or Data Entry ................. 7–10 HTTP Interface Page Examples and Descriptions ......7–11 7.5.1 Home Pages..................7–11 7.5.1.1 Home | Home ................7–11 7.5.1.2 Home | Contact................7–12 7.5.1.3 Home | Support ................
  • Page 13 DT-4572 X-Band Down Converter MN/DT4572.IOM / CD-MNDT4572 Table of Contents Revision 1 8.5.2 Baud Rate ..................... 8–6 8.5.3 Asynchronous Character Format ............8–6 8.5.4 Character Set ..................8–6 8.5.5 Response Timeout ................8–6 8.5.6 Bus Inactivity Requirement ..............8–6 Message Structure ................8–7 8.6.1 Start Character ..................
  • Page 14 DT-4572 X-Band Down Converter MN/DT4572.IOM / CD-MNDT4572 Table of Contents Revision 1 8.7.2.16 SRO (Set Reference Oscillator Tuning) ......... 8–16 8.7.2.17 SSA (Converter Slope Adjustment) ..........8–16 8.7.2.18 RET (Equipment Type) ..............8–17 8.7.2.19 PNM (Part Number) ..............8–17 8.7.2.20 FRW (Legacy Firmware Information) ........... 8–17 8.7.2.21 FRM (Firmware Information) ............
  • Page 15 A.4.1.1 Initial Configuration ............... A–9 A.4.1.2 Automatic Configuration Verification .......... A–10 A.4.1.3 Manual Configuration and Verification ........A–12 A.4.2 Redundant System Configuration Using the DT-4572 HTTP Interface ... A–14 A.4.3 Offset Adjustment ................A–16 Redundancy Systems – Converter Management ....... A–16 APPENDIX B.
  • Page 16 Table 4-5. ‘P1 | RELAY’ Pinout ................4–14 Table 4-6. ‘J3 | HSB’ Data Interface Pinout ............4–17 FIGURES Figure 1-1. DT-4572 X-Band Down Converter ............. 1–1 Figure 1-2. DT-4572 Physical Configuration ............1–2 Figure 1-3. Functional Block Diagram ..............1–4 Figure 1-4.
  • Page 17 Figure 4-15. DT-4572 Cabling Example (with RSM) .......... 4–15 Figure 4-16. “Personality” Module Examples ........... 4–16 Figure 4-17. DT-4572 Standalone Cabling Example to IOM ......4–18 Figure 4-18. DT-4572 Standalone Cabling Example to RSM ......4–18 Figure 4-19. RSM Switching Schematic ............. 4–19 Figure 6-1.
  • Page 18 Figure A-13. Front Panel Example – Down Converter #01 Forced Backup ..A–13 Figure A-14. ‘Config | Redundancy’ Page ............A–14 Figure B-1. DT-4572 Signal and Interconnecting Diagram – 1:N Redundancy “Inline” Unit Example (with RSM)..............B–1 Figure B-2. DT-4572 Front Panel ................. B–2...

  • Page 19: Preface

    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.

  • Page 20: Conventions And References

    Patents and Trademarks See all of Comtech EF Data's Patents and Patents Pending at http://patents.comtechefdata.com. Comtech EF Data acknowledges that all trademarks are the property of the trademark owners. Warnings, Cautions, Notes, and References A WARNING indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.

  • Page 21: Recommended Standard Designations

    DT-4572 X-Band Down Converter MN/DT4572.IOM Preface Revision 1 Recommended Standard Designations Electronic Industries Association (EIA) designations supersede Recommended Standard (RS) designations. Reference to the old RS designations may appear where it might concern actual text (e.g., RS-232) displayed on the product panels and on screens or pages in the Serial Remote or HTTP (Web Server) Interfaces.

  • Page 22: European Union Radio Equipment And Telecommunications Terminal

    DT-4572 X-Band Down Converter MN/DT4572.IOM Preface Revision 1 MORE THAN 95% RELATIVE HUMIDITY. • UNPRESSURIZED ALTITUDES OF MORE THAN 3048 METRES (10,000 FEET). • EXCESSIVE DUST. • FLAMMABLE GASES. • CORROSIVE OR EXPLOSIVE ATMOSPHERES. European Union Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive (1999/5/EC) and EN...

  • Page 23: European Union Low Voltage Directive (Lvd) (2006/95/Ec)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Preface Revision 1 • Use Type 'D' connectors that have back-shells with continuous metallic shielding. • Type ‘D’ cabling must have a continuous outer shield (either foil or braid, or both). The shield must be bonded to the back-shell.

  • Page 24: Ce Mark

    Comtech EF Data for the warranty period specific to the product purchased. For equipment under warranty, the owner is responsible for freight to Comtech EF Data and all related customs, taxes, tariffs, insurance, etc. Comtech EF Data is responsible for the freight charges only for return of the equipment from the factory to the owner.

  • Page 25: Limitations Of Warranty

    The warranty does not apply to any part of a product that has been installed, altered, repaired, or misused in any way that, in the opinion of Comtech EF Data Corporation, would affect the reliability or detracts from the performance of any...

  • Page 26: 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.

  • Page 27: Chapter 1. Introduction

    Converters Installation and Operation Manual (CEFD P/N MN/DT4500.IOM) documents the C- and Ku-Band versions of this product. 1.2 Functional Description Figure 1-2 shows the DT-4572 chassis with its top cover removed. The major chassis components and module assemblies are: • Signal Path Module 1–1...

  • Page 28: Applications

    Figure 1-2. DT-4572 Physical Configuration 1.2.1 Applications The DT-4572 operates over the RF frequency range with a typical gain of 45 dB. The RF output level is +20 dBm @ 1 dB compression. This permits longer cable runs and compensates for splitting networks without requiring options such as external line amplifiers.
  • Page 29 DT-4572 X-Band Down Converter MN/DT4572.IOM Introduction Revision 1 The phase noise performance exceeds the Intelsat phase noise mask for IBS and IDR services by more than 9 dB. This allows high capacity earth stations to add more demodulators and still meet transmission standards. The close-in phase noise is also very low.

  • Page 30: Rf Signal Conversion

    As a typical example of the RF signal processing, the RF input to the DT-4572 is 7250 to 7750 MHz at a typical level of -45 dBm. The RF is mixed in the first mixer with a 6030 to 6530 MHz synthesizer signal from a multiplier, in 125 kHz fine tuning steps.The synthesizer is locked to a 5/10 MHz reference oscillator.

  • Page 31: Monitor & Control

    1.2.3 Monitor & Control The Monitor & Control Assembly is designed to monitor the functions of the DT-4572, and provide the local and remote control command inputs to the converter. For Local Monitor & Control: Local operator input commands and the status of the DT-4500 display on the front panelVACuum Fluorescent Display (VFD).

  • Page 32: Dt-4572 Features

    1.3 DT-4572 Features 1.3.1 Physical Description The DT-4572 features a 1RU-high (1.75”) 19-inch wide chassis that is designed for rack mounting into a standard 19-inch (48.26 cm) equipment rack. The converter may also be mounted into the rack using the provided slide mechanisms to allow service without removal from the rack.

  • Page 33: Dimensional Envelope

    DT-4572 X-Band Down Converter MN/DT4572.IOM Introduction Revision 1 1.3.2 Dimensional Envelope Dimensions are shown in inches and [millimeters]. Figure 1-4. DT-4572 Dimensional Envelope 1–7...

  • Page 34: Front Panel

    DT-4572 X-Band Down Converter MN/DT4572.IOM Introduction Revision 1 1.3.3 Front Panel (TOP) Initially Released Chassis (BOTTOM) Current Production Unit Figure 1-5. Front Panel View The unit front panel (Figure 1-5) provides, from left to right): Item 1 – Rack Handles These handles ease removal and replacement of the chassis into the user- provided rack enclosure.
  • Page 35 DT-4572 X-Band Down Converter MN/DT4572.IOM Introduction Revision 1 RECEIVE (INITIALLY RELEASED CHASSIS) OUTPUT ENABLE (CURRENT PRODUCTION UNIT) Lights AMBER when the transmit function is operational. REMOTE Lights AMBER when the unit is in Remote Communication Mode. Local monitoring is possible, but unit configuration is possible using either Serial or Ethernet remote control.

  • Page 36: Rear Panel

    (Figure 1-6 or Figure 1-7). Figure 1-6. Rear Panel (with IOM) – Current Production Unit The DT-4572 chassis, as initially released (Figure 1-7), does not provide an ‘Ethernet’ 100BaseTX RJ-45 port. Ethernet interface operation is not available on these legacy products.
  • Page 37 DT-4572 X-Band Down Converter MN/DT4572.IOM Introduction Revision 1 From left to right: Item 1 – Power Connection (part of Power Supply module) • The standard AC unit features a 90-250VAC Primary Input Power Supply (IEC-60320 Type C14 three-prong male connector) •...
  • Page 38 Switch Module (TSM), Equalizer Module (EQM), or Receive Switch Module (RSM). The converter RF, IF, and High-Speed Bus (HSB) connectors are integral to the installed module. Contact Comtech EF Data Product Support for further information about the available modules. Also see: • Chapter 2. SPECFICIATIONS •...

  • Page 39: Chapter 2. Specifications

    Chapter 2. SPECIFICATIONS Comtech EF Data publication DT-4500 Series C- and Ku-Band Down Converter Installation and Operation Manual (CEFD P/N MN/DT4500.IOM) documents the C- and Ku-Band versions of this product. 2.1 Physical and Environmental Specifications 2.1.1 Regulatory Compliance • “CE” as follows:...

  • Page 40: Mean Time Between Failures (Mtbf)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Specifications Revision 1 2.1.3 Mean Time Between Failures (MTBF) • 49,740 hrs as calculated • >100,000 hrs based on field experience 2.1.4 Temperature Range • Operating: 32° to 122° F (0° to 50° C) • Storage: -4°...

  • Page 41: Vacuum Fluorescent Display (Vfd)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Specifications Revision 1 • FAULT (RED) • STORED FAULT (RED) 2.1.7.3 Vacuum Fluorescent Display (VFD) 2 lines, 24 characters per line. 2.1.7.4 Keypad Six Keys:  (LEFT),  (RIGHT),  (UP),  (DOWN), ENTER, CLEAR 2.1.8...

  • Page 42: Grounding

    Connector to access the Form C Alarms (relay closures). • Serial Remote Control Interface: (1X) DB-9F (D-Subminiature) ‘J1 | COM1’ EIA-232/EIA-485 (2-Wire/4-Wire) connector. 2.1.8.5 Removable “Personality” Modules Contact Comtech EF Data Product Support for information about using the available “personality” modules. 2.1.8.5.1 IOM (Input/Output Module) Assemblies Impedance...

  • Page 43: Psm (Polarity Switch Module) Assemblies

    DT-451X w/Isolator, Type ‘SMA’ AS/0101-43 DT-451X, UT-4514/F w/Isolator 2.1.8.5.4 EQM (Equalizer Module) Assemblies Impedance CEFD P/N Comments (Ohms) DT-4503, DT-451X, DT-4572, UT-4505, UT-4579 EQM for 1:1, AS/0101-13 Type ‘SMA’ DT-4503, DT-451X, DT-4572, UT-4505, UT-4579 1:N IF & RF AS/0101-25 Switch, Type ‘SMA’ 2–5...

  • Page 44: Rsm (Receive Switch Module) Assemblies

    2.1.8.5.5 RSM (Receive Switch Module) Assemblies Impedance CEFD P/N Comments (Ohms) AS/0101-4 DT-4503 Switching, Down, Type ‘SMA’ AS/0101-6 DT-4503, DT-4572, UT-4579 Switching, Type ‘N’ AS/0101-7 DT-4503, DT-4572, UT-4579 Switching, Type ‘N’ AS/0101-16 DT-4503 I/O, Type ‘SMA’ AS/0101-20 Receive Switch, RSM2 AS/0101-26 RSM2, Type ‘N’...

  • Page 45: Preset Channels

    DT-4572 X-Band Down Converter MN/DT4572.IOM Specifications Revision 1 2.2.4 Preset Channels 32 frequencies and gains 2.2.5 Stability Over Time ± 1 x 10 /Day 2.2.6 Stability Over Temperature ± 1 x 10 32° to 122°F (0° to 50°C) 2.2.7 RF Input 2.2.7.1 Input Level...

  • Page 46: Range

    DT-4572 X-Band Down Converter MN/DT4572.IOM Specifications Revision 1 2.2.8.2 Range Contact Comtech EF Data Product Support for your specific requirements. • STANDARD: 50 to 88 MHz or 104 to 176 MHz • OPTIONAL: 50 to 80 MHz or 100 to 180 MHz 2.2.8.3 Non-carrier Spurious...

  • Page 47: Attenuation Adjustment

    0 to 20 dB in 0.1 dB Steps 2.2.9.3 Gain Stability ± 0.25 dB/day 2.2.9.4 Ripple Contact Comtech EF Data Product Support for your specific requirements. • ±0.25 dB (±18 MHz) – OPTIONAL ±20 MHz • 0.75 dB (±36 MHz) – OPTIONAL ±40 MHz 2.2.9.5 Slope 0.05 dB/MHz...

  • Page 48: Group Delay

    DT-4572 X-Band Down Converter MN/DT4572.IOM Specifications Revision 1 2.2.10 Group Delay 2.2.10.1 Linear 0.03ns/MHz 2.2.10.2 Parabolic 0.01ns/MHz 2.2.10.3 Ripple 1.0ns Peak-to-Peak 2.2.11 Phase Noise Parameter Limit (dBc/Hz) Typical (dBc/Hz) 100 Hz 1 KHz 10 KHz 100 KHz -100 -102 1 MHz...

  • Page 49: Chapter 3. Installation And Startup

    Chapter 3. INSTALLATION STARTUP 3.1 Unpack and Inspect the Shipment Figure 3-1. Unpack and Inspect the Shipment The DT-4572X-Band Down Converter, its optional Installation and Operation Manual (available online at http://www.comtechefdata.com), its bearingless 3–1...
  • Page 50 1. Keep all shipping materials. 2. Check the packing list to make sure the shipment is complete. 3. Inspect the equipment for damage. If damage exists, immediately contact the carrier and Comtech EF Data to submit a damage report. 4. Read the manual.

  • Page 51: Install The Unit Into A Rack Enclosure

    Make sure there is proper air ventilation. Do not block the top of the rack or the presence of a rack blower. The air temperature inside the rack must never exceed 50°C (122°F). If there is any doubt, contact Comtech EF Data Product Support during normal business hours. 3–3...

  • Page 52: Figure 3-2. Install The Unit Into A Rack Enclosure

    DT-4572 X-Band Down Converter MN/DT4572.IOM Installation and Startup Revision 1 Feature Description Custom Rack Enclosure DT-4572 chassis Standard Rack Shelving Rack Enclosure Threaded Front Rail (typical) Unit Front Panel User-supplied Screws Figure 3-2. Install the Unit into a Rack Enclosure...

  • Page 53: Install The Optional Rear Support Brackets Kit

    DT-4572 X-Band Down Converter MN/DT4572.IOM Installation and Startup Revision 1 3.2.1 Install the Optional Rear Support Brackets Kit Feature Description Back of unit Rack Enclosure Threaded Rear Mounting Rail (typical) Kit / Quantity Item CEFD P/N Description KT/6228-2 KT/6228-3 HW/10-32SHLDR...
  • Page 54 DT-4572 X-Band Down Converter MN/DT4572.IOM Installation and Startup Revision 1 Tools needed to install the optional KT/6228-2 (4”) or KT/6228-3 (10”) Brackets Kit: • A medium Phillips screwdriver • A 5/32-inch SAE Allen Wrench • An adjustable Crescent wrench. Do these steps to install the brackets kit (Figure 3-3): 1.

  • Page 55: Install The Optional Rack Slide Set

    DT-4572 X-Band Down Converter MN/DT4572.IOM Installation and Startup Revision 1 3.2.2 Install the Optional Rack Slide Set If the unit is to be mounted on slides, install the provided bearingless rack slide set into the rack cabinet, and onto the sides of the DT-45XX. Use the hardware provided with the slide set that is determined to be appropriate for installation.

  • Page 56: Connect Prime Power Connection

    AC Prime power receptacle on the rear of the converter chassis. 3.4 Connect External Cables Proceed to connect all external cables to the connectors outlined in the next chapter (Chapter 4. FRONT AND REAR PANEL CONNECTIONS). Should difficulties occur, call Comtech EF Data Product Support for assistance. 3–8...

  • Page 57: Overview - Cabling Connection Types

    PANEL CONNECTORS 4.1 Overview – Cabling Connection Types Comtech EF Data’s DT-4572 X-Band Down Converter uses a number of different cables. Each cable type is typically dedicated to a specific mode of operation. 1) Not all of these operational interface types may be available.

  • Page 58: Coaxial Cable Connections

    (BOTTOM) Threaded Coupling Plug and Jack (Type ‘N’ Shown) Figure 4-1. Coaxial Connector Examples The types of coaxial cables used by Comtech EF Data are ‘BNC’, ‘TNC’, ‘N’, ‘F’, and ‘SMA’. Coaxial cables (plugs) and their mating connectors (jacks/sockets) are available in two coupling styles –...

  • Page 59: Type 'Bnc

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.1.1.1 Type ‘BNC’ BNC plugs and jacks feature a Bayonet Coupling design. 4.1.1.2 Type ‘TNC’ TNC plugs and jacks feature a Threaded Coupling design similar to Type ‘N’, Type ‘F,’...

  • Page 60: Type 'Sma

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.1.1.5 Type ‘SMA’ Type ‘SMA’ connectors feature a Threaded Coupling design similar to Type ‘TNC’, Type ‘N’, and Type ‘F’ connectors. 4.1.2 D-Subminiature Cable Connections Type ‘D’ Cable with Jack Screws Type ‘D’...

  • Page 61: Cable Connections

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.1.3 RJ-45, RJ-48 Cable Connections Figure 4-3. RJ-45/RJ-48 Connector Example The plug for an RJ-45 or RJ-48 cable features a flexible tab. The RJ-45 or RJ-48 receptacle features a mating slot. This design configuration ensures a secure installation.

  • Page 62: Usb Cable Connections

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.1.4 USB Cable Connections (TOP) Type ‘A’ USB Plug and Receptacle (BOTTOM) Type ‘B’ USB Plug and Receptacle Figure 4-4. USB Connector Examples Universal Serial Bus connectors are also called USB connectors. A USB connection is used as a bus-type communications or power interface between peripheral devices.

  • Page 63: Unit Connectors

    External cables are attached to connectors provided on the rear and front panels of the unit (Figure 4-5). The DT-4572 chassis, as initially released (Figure 4-6), does not provide an ‘Ethernet’ RJ-45 port. Ethernet interface operation is not available on these legacy products.

  • Page 64: Power Connections

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.2.1 Power Connections 4.2.1.1 Power Interface Module – Standard AC Unit Figure 4-7. Standard AC Power Module As shown in Figure 4-5 and Figure 4-7, the AC power interface module consists of the following components: Item 1 –...

  • Page 65: Ac Operation - Apply Ac Power

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 As shown in Figure 4-7 and Figure 4-8: The unit rear panel features a fuse holder that is press-fit into the body of the IEC power module. WARNING!

  • Page 66: Power Interface Module - Optional -48Vdc Unit

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.2.1.2 Power Interface Module – Optional -48VDC Unit Figure 4-10. Optional DC Power Module As shown in Figure 4-5 and Figure 4-10, the DC power interface module consists of the following components: Item 1 –...

  • Page 67: Dc Operation - Apply Power

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.2.1.2.2 DC Operation – Apply Power Figure 4-11. Apply DC Power to the Unit Do these steps to apply DC power to the unit (Figure 4-11): 1. Connect the user-supplied ‘-48’ (+) and ‘GND’ (–) DC power leads to their respective terminals.

  • Page 68: Operational Connections

    Ethernet Interface operation. Use this ‘Ethernet’ 100 BaseTX RJ-45 port for operation of the Ethernet remote control interfaces. It is also used for updating DT-4572 firmware. This receptacle uses a CAT5 Ethernet cable for connection to an Ethernet hub, router, switch, PC, etc.

  • Page 69: Table 4-1. 'Ethernet' M&C Interface Connector Pinout

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 Table 4-1. ‘Ethernet’ M&C Interface Connector Pinout Pin # Description Direction Item 7 – ‘J1 | COM1’ Serial Management Utility Connector Use this D-Sub 9-pin female (DB-9F) EIA-232/EIA-485 connector for Serial Interface operation.

  • Page 70: Table 4-5. 'P1 | Relay' Pinout

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 Item 8 – ‘P1 | RELAY’ Utility Connector Use this D-Sub 9-pin female (DB-9F) connector to access the Form C Alarms (relay closures). The mating connector is a DB-9M connector.

  • Page 71: Dt-4572 Series Cable Connections

    4.2.3.1 DT-4572 Series Cable Connections Figure 4-15. DT-4572 Cabling Example (with RSM) Figure 4-15 provides a cabling connection example for the DT-4572 X-Band Down Converter. This example depicts use of a Receive Switch Module (RSM) in a standalone configuration – the module cabling requirements will vary.

  • Page 72: Removable "Personality" Modules

    Contact Comtech EF Data Product Support for complete details and specifications for the module(s) specific to your system. See Chapter 2. SPECIFICATIONS for the listings of available modules for use with the DT-4572 Down Converters and UT-4579 Up Converters. (TOP) Input/Output Switch Module (IOM) (CENTER) Receive Switch Module (RSM) (BOTTOM) Transmit Switch Module (TSM) Figure 4-16.

  • Page 73: Removable Module Connectors

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.2.4.1 Removable Module Connectors The module connector types vary depending on the operating band and impedance of the purchased unit: • The IF Input/Output and LP (Loop) In/Out connectors are typically BNC female connectors.

  • Page 74: Module Operation In Non-Redundant (Standalone) Applications

    Front and Rear Panel Connectors Revision 1 The ‘J3 | HSB’ connector does not employ a “straight-through” cable assembly. Contact Comtech EF Data Product Support for detailed cabling instructions when cabling between converters in redundant applications. 4.2.4.2 Module Operation in Non-Redundant (Standalone)

  • Page 75: Module Operation In Redundant Applications

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 4.2.4.3 Module Operation in Redundant Applications See Appendix A. REDUNDANT SYSTEM OPERATION for descriptions of the specific use of these various switch modules in redundant applications. In subsystems where a redundant converter configuration is used, the backup converter has an Input/Output Module (IOM), while the online converters have Receive Switch Modules (RSM).
  • Page 76 DT-4572 X-Band Down Converter MN/DT4572.IOM Front and Rear Panel Connectors Revision 1 Notes: 4–20...

  • Page 77: Chapter 5. Firmware Update

    The DT-4572 X-Band Down Converter is factory-shipped with its latest version of operating firmware. If you need to update the firmware, you can apply the update to the DT-4572 without having to remove it from operation. You may directly acquire the download from Comtech EF Data’s web site (www.comtechefdata.com), or receive the archive file by e-mail from Comtech EF...

  • Page 78: About Firmware Numbers, File Versions, And Formats

    5.1.2 About Firmware Numbers, File Versions, and Formats The Comtech EF Data Web site catalogues its firmware update archive files by product type (e.g., router, modem, etc.), the specific model, and optional hardware configurations. The DT-4572 files are provided under “Home | Support | Software Downloads | Flash &...

  • Page 79: Prepare For The Firmware Download

    Get the DT-4572 Management IP Address and Firmware Information 1. On the DT-4572 – Apply power to the unit. Typical for either the standard AC unit or the optional DC unit, switch the power ON. 2. Use the DT-4572 front panel to identify your default Management IP Address.

  • Page 80: Use The Dt-4572 Front Panel To Get The Management Ip Address And Firmware Information

    DT-4572 X-Band Down Converter MN/DT4572.IOM Firmware Update Revision 1 5.2.3.1 Use the DT-4572 Front Panel to Get the Management IP Address and Firmware information Chapter 6. FRONT PANEL OPERATION Using the unit front panel: • You may view find the factory-assigned Management IP Address within the CONFIG ...

  • Page 81: Make A Temporary Folder (Subdirectory) On The User Pc

    5.2.3.3 Use the Serial Interface to Find the Firmware Information Chapter 8. SERIAL INTERFACE OPERATION Use your terminal emulator program to execute remote queries with the DT-4572. Use the “FRM” remote query to find the firmware information: • <DEV/FRM_{cr} (returns the complete information of the firmwares running under Boot, Bulk1, and Bulk2 in the form FW-AAAAAAA B.B.BB DD/MM/YY,...

  • Page 82: Use Windows Desktop To Make A Folder

    DT-4572 X-Band Down Converter MN/DT4572.IOM Firmware Update Revision 1 • To use the Windows Desktop, see Section 5.2.4.1. • To use Windows Explorer, see Section 5.2.4.2. • To use the Run and Browse windows, see Section 5.2.4.3. • To use Windows Command-line or the Command Prompt, see Section 5.2.4.4.

  • Page 83: Use Windows Explorer To Make A Folder

    DT-4572 X-Band Down Converter MN/DT4572.IOM Firmware Update Revision 1 5.2.4.2 Use Windows Explorer to Make a Folder Do these steps: 1. Left-double-click the Windows Explorer icon on the Windows Desktop. 2. Depending in your Windows OS version: select File > New > Folder, or click your Folder Destination (e.g., Windows (C:) and then New Folder to...

  • Page 84: Use Windows Command-Line Or Command Prompt To Make A Folder

    DT-4572 X-Band Down Converter MN/DT4572.IOM Firmware Update Revision 1 5.2.4.4 Use Windows Command-line or Command Prompt to Make a Folder Select Start on the Windows taskbar and then do these steps: 1. Click Run... to open the Run window (or, depending on Windows OS version prior to Windows 95, click the MS-DOS Prompt icon from the Main Menu).

  • Page 85: Download And Extract The Firmware Update Files

    4. On the Flash Updates Index page – Select the (Select a Product Line) Converters hyperlink. 5. On the Converters product page – Select the DT-4572 product hyperlink. 6. Select the appropriate firmware archive EXE or ZIP file download hyperlink.
  • Page 86 • To use the Windows Desktop, see Section 5.3.1.1. • To use Windows Command-line or Command Prompt, see Section 5.3.1.2. After you confirm the firmware files are in the folder, proceed to Section 5.4 to upload the firmware update to the DT-4572. 5–10...

  • Page 87: Use Windows Desktop To View Folder Contents

    Important Considerations Before you proceed with the firmware update, make sure that: • You connect the DT-4572 ‘Ethernet’ port to a Windows-based PC Ethernet port with a CAT5e Ethernet cable. • Your PC is running a terminal emulation program for operation of the DT-4572 Telnet or serial interfaces.

  • Page 88: Steps To "Creflash" Upload The Firmware Files

    DT-4572 X-Band Down Converter MN/DT4572.IOM Firmware Update Revision 1 5.4.2 Steps to “CReflash” Upload the Firmware Files 1) The “CReflash” utility is provided with the firmware download. Ver5x and earlier chassis units (i.e., non-Ethernet units) must use this procedure. Do these steps: 1.

  • Page 89: Steps To Ftp Upload The Firmware Files

    2) Type all commands without quotes, and press Enter to execute. 1. To proceed, you should already have noted the Management IP Address for the DT-4572 as instructed in Section 5.2.3.1. 2. Use Windows Command-line to send a ping command. To ping the unit, type “ping xxx.xxx.xxx.xxx”...

  • Page 90: Steps To Complete The Firmware Update Procedure

    • Chapter 6. FRONT PANEL OPERATION • Chapter 7. ETHERNET INTERFACE OPERATION Use the DT-4572 front panel or the HTTP Interface to select the new firmware image. You must then reboot the unit for the update to take effect. 5.4.4.1 Select the Boot Image 5.4.4.1.1 Use the Front Panel to Select the Boot Image...

  • Page 91: Reboot The Unit

    Do these steps from the HTTP Interface ‘Config | Utility’ page: 1. In the ‘Perform Soft Reboot’ section, click [Reboot Now]: 2. Wait while the DT-4572 reboots with the Current Active Firmware Image. 3. To load a second image, repeat the tasks described throughout Section 5.4.4.
  • Page 92 DT-4572 X-Band Down Converter MN/DT4572.IOM Firmware Update Revision 1 Notes: 5–16...

  • Page 93: Chapter 6. Front Panel Operation

    Chapter 6. FRONT PANEL OPERATION 6.1 Front Panel Overview You may fully control and monitor the DT-4572 X-Band Down Converter from the front panel (Figure 6-1). (TOP) Initially Released Chassis (BOTTOM) Current Production Unit Figure 6-1. DT-4572 Front Panel View...

  • Page 94: Power Up The Unit

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.1.1 Power Up the Unit Before applying power, you should check to ensure that installation is complete. Verify that the converter is connected to the proper prime power source, RF Input, and IF Output.

  • Page 95: Led Indicators

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.1.2 LED Indicators The Light-Emitting Diode (LED) Indicators for the initially-released chassis and the current production unit differ as follows: (LEFT) LEDs – Initially Released Chassis (RIGHT) LEDFs – Current Production Unit See Figure 6-1, Item 1.These six LED Indicators convey operational states as...

  • Page 96: Vacuum Fluorescent Display (Vfd)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.1.3 Vacuum Fluorescent Display (VFD) The displays for the initially-released chassis and the current production unit differ as follows: (LEFT) Liquid Crystal Display (LCD) – Initially Released Chassis (RIGHT) Vacuum Fluorescent Display (VFD) – Current Production Unit DT-4572 SW VER X.X.X SN#########...

  • Page 97: Keypad

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.1.4 Keypad The keypads for the initially-released chassis and the current production unit differ as follows: (LEFT) “Square” Button Keypad – Initially Released Chassis (RIGHT) “Round” Button Keypad – Current Production Unit See Figure 6-1, Item 3.The keys for the current production unit keypad have a...

  • Page 98: Front Panel Operation - Menu Matrix

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2 Front Panel Operation – Menu Matrix Chapter Sect. Menu Screen Description Submenu Selections 6.2.1 Opening Screen – 6.2.2 Select (Main) Menu CONFIG; MONITOR; FAULTS; PRE-SELECTS; UTILITY 6.2.3 CONFIG (Configuration) OUTPUT;...

  • Page 99: Opening Screen

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.1 Opening Screen DT_4572 SW VER. X.X.X SN######### The opening screen displays once you apply power to the unit. The top line identifies the unit model. The bottom line displays the running Firmware Version (this number may vary) and the unit serial number.

  • Page 100: Select:) Config (Configuration) Menu Branch

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.3 (SELECT:) CONFIG (Configuration) Menu Branch OUTPUT REMOTE REDUNDANCY FAULTRECOVERY COLDSTART Use the   keys to move the cursor to the desired choice. Press ENTER. The function of each CONFIG submenu is as follows: •...

  • Page 101: Config:) Output Submenu (Optional Dual If Rack Mount Converters)

    6.2.3.1.1 (CONFIG:) OUTPUT Submenu (OPTIONAL DUAL IF RACK MOUNT CONVERTERS) Comtech EF Data provides the ability to switch the output IF frequency between 70 MHz and 140 MHz. For converters equipped with this optional hardware configuration, the (CONFIG:) OUTPUT submenu appears as follows: Frq=07250.125 MHz...

  • Page 102: Config:) Remote (Remote Control) Submenu

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.3.2 (CONFIG:) REMOTE (Remote Control) Submenu Remote Control: Local SERIAL ETHERNET Use the   keys to select Local, SERIAL, or ETHERNET. Press ENTER. 6.2.3.2.1 (REMOTE:) Local 1) When you select Local mode, remote monitoring is possible, but remote control is disabled.

  • Page 103: Remote:) Ethernet

    8-N-1, 7-E-2, or 7-O-2. Press ENTER. 6.2.3.2.3 (REMOTE:) ETHERNET The DT-4572 X-Band Down Converter, as initially released, does not feature a rear panel ‘Ethernet’ port. Only current production units offer Ethernet Interface operation. See Chapter 4. FRONT AND REAR PANEL CONNECTORS for more information.
  • Page 104 DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.3.2.3.3 (REMOTE:) ETHERNETSNMP COMMUNITIES TRAPS Use the   keys to select COMMUNITIES or TRAPS. Press ENTER. (REMOTE:) ETHERNETSNMPCOMMUNITIES SNMP Communities: READ WRITE TRAP Use the   keys to select READ, WRITE, or TRAP. Press ENTER.
  • Page 105 DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 View or edit the SNMP Trap Community string. To edit, use the   keys to select a character, and then use the  keys to change that character. Press ENTER.

  • Page 106: Config:) Redundancy Submenu

    This menu branch is functional in LOCAL MODE ONLY. 1:1 Redundancy is an optional feature for the DT-4572. If you attempt to select any feature from this menu branch, and either Redundancy Configuration is off or the converter is the primary operating unit, the Redundancy menu branch...

  • Page 107: Redundancy:) Auto/Manual

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 Note the following: • With CONVERTER = #BU, the unit is set as the standby, or backup unit. This mode of operation is indicated on the right-hand side of the bottom line as 1:0#.

  • Page 108: Redundancy:) Hsb

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 On the bottom line, use the   keys to navigate to the ACTIVATE BACKUP setting, and then use the  keys to set toggle switchover as NO (i.e., no backup occurs at the defined operational threshold), or FORCE (i.e., switchover...

  • Page 109: Config:) Faultrecovery Submenu

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.3.4 (CONFIG:) FAULTRECOVERY Submenu Fault Recovery: Auto Use the   keys to select Fault Recovery as Manual or Auto (automatic). Press ENTER. The default operation is Auto. 6.2.3.5 (CONFIG:) COLDSTART Submenu Cold Start Mode, if enabled, mutes the converter output signal for a pre- determined time –...

  • Page 110: Select:) Faults Menu Branch

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 Converter Temp = +30.0C ▲ IFLO Tuning = 0.38V ▼ Synth Tuning: Sum=0.32V ▲ Coarse=06.0V Fine=03.5V ▼ Press ENTER or CLEAR to continue. 6.2.5 (SELECT:) FAULTS Menu Branch The MASK selection is disabled in redundancy systems.

  • Page 111: Faults:) Stored

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 Conv Temperature = OK ▲ High Speed Bus = OK ▼ Use the  keys to page between screens. Press ENTER or CLEAR to return to the previous menu. 6.2.5.2 (FAULTS:) STORED...

  • Page 112: Faults:) StoredClear-All

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 Once the number of faults reaches 100, the 100 fault displays as “ER.” The stored faults remain in memory until you execute the CLEAR-ALL command. Press ENTER or CLEAR to return to the previous menu.

  • Page 113: Pre-Selects:) Load

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 Otherwise, when pre-selects are programmed and available, entries display as per this example: #03 LOAD PROGRAM CLEAR ▲ 03625.125 MHz 01.25 dB ▼ Use the  keys to browse through the stored pre-selects (#01 through #32, as available).

  • Page 114: Pre-Selects:) Clear

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.6.3 (PRE-SELECTS:) CLEAR CLEAR deletes a previously programmed pre-select from the active memory slot. If a pre-select is present in the active memory slot, once you select CLEAR this message displays:...

  • Page 115: Utility:) Time (Real-Time Clock) Submenu

    NOT CHANGE AN IMAGE UNLESS OTHERWISE INSTRUCTED BY COMTECH EF DATA PRODUCT SUPPORT. This series of submenus permits you to view information about the DT-4572 internal firmware. The converter can store two complete firmware images, and you can select which image will be loaded the next time the unit reboots.

  • Page 116: Firmware:) Info

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.7.3.1 (FIRMWARE:) INFO Firmware Info: BOOTROM IMAGE#1 IMAGE#2 Use the   keys to select BOOTROM, IMAGE#1 or IMAGE#2. Press ENTER. to view the information. Typical for all nested screens, the top line identifies the firmware number.

  • Page 117: Firmware:) Select

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 (FIRMWARE:) INFOIMAGE#1/#2APP App#X: FW-0000203x X.X.X MM/DD/YY (FIRMWARE:) INFOIMAGE#1/#2FPGA FPGA#X: FW-0000204 X.X.X MM/DD/YY 6.2.7.3.2 (FIRMWARE:) SELECT Current Active Image: #1 Next Reboot Image: #1 #2 Use this submenu to select the Current Active Firmware Image.

  • Page 118: Utility:) Refosc (Reference Oscillator Adjustment) Submenu

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 destination or other aspects of the application that may be significant to operations. The default AID is "AID MESSAGE". At the “Edit AID Message?” prompt, use the   keys to select No or Yes. Press ENTER.

  • Page 119: Utility:) Slope Submenu

    DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 6.2.7.6 (UTILITY:) SLOPE Submenu Converter slope adjustment = 0.0 Set your converter slope adjustment value. Use the   keys to select a digit, and then use the  keys to change that digit. The default converter slope adjustment is 0.0, with allowable values from 0.0 to 1.0.
  • Page 120 DT-4572 X-Band Down Converter MN/DT4572.IOM Front Panel Operation Revision 1 Notes: 6–28...

  • Page 121: Chapter 7. Ethernet Interface Operation

    INTERFACE OPERATION 7.1 Overview Operation of the Ethernet Interface is available when you connect a user- supplied, Windows-based PC to the DT-4572 rear panel ‘Ethernet’ 100BaseTX RJ-45 port. The DT-4572 X-Band Down Converter, as initially released, does not feature a rear panel ‘Ethernet’ port. Only current production units offer Ethernet Interface operation.

  • Page 122: Prerequisites

    MIB file names, the letter ‘x’ represents the revision of the file. 7.2.1.1 ComtechEFData Root MIB File • FW-0000235x.mib • ComtechEFData MIB file gives the root tree for all Comtech EF Data products and consists of only the following OID: o Name: comtechEFData...

  • Page 123: Dt-45Xx Common Mib File

    M&C. See the DT-45xx FW Release Notes for information on the required FW/SW compatibility. The DT-4572 uses Community Strings as a password scheme that provides authentication before gaining access to the router agent’s MIBs. They are used to authenticate users and determine access privileges to the SNMP agent.

  • Page 124: Snmp Traps

    SNMPv1 traps are to be used. The DT-4572 has the ability to send out SNMP traps when certain events occur in the unit. For example, the unit sends out traps when an alarm or a fault occurs or clears.

  • Page 125: Using Hyperterminal For Telnet Remote Control Operation

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 The Telnet interface requires user login at the Administrator level and Read/Write level. Once logged into the Telnet interface as the Administrator, you have access to the optional serial-based Remote Control Interface. Figure 7-1 shows an example of the login process for remote control operation.

  • Page 126: Configure Hyperterminal For Telnet Remote Control Operation

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.3.1.1 Configure HyperTerminal for Telnet Remote Control Operation Figure 7-3. Configure HyperTerminal See Figure 7-3. Do these steps: • Make sure to define the Connect To Telnet connection properties correctly (File  Properties) (Figure 7-3, left): a.

  • Page 127: Http (Web Server) Interface

    7.4 HTTP (Web Server) Interface A user-supplied web browser allows the full monitoring and control (M&C) of the DT-4572 from its HTTP Interface. This non-secure embedded web application is designed for, and works best with, Microsoft Internet Explorer Version 5.5 or higher.

  • Page 128: Figure 7-4. Http Interface "Splash" Page Example

    Password, the message “You do not have security privilege to access this area.” displays. Otherwise, upon entry of the valid IP address and login information DT-4572 HTTP Interface “splash” page displays, similar to the example shown in Figure 7-4. The firmware version in this example may differ from your setup.

  • Page 129: Http Interface Features

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.4.2 HTTP Interface Features 7.4.2.1 Menu Tree Figure 7-5 Illustrates the menu hierarchy for the HTTP Interface. It features four navigation tabs (shown in blue). Primary page hyperlinks (grey) grant access to individual web pages.

  • Page 130: Action Buttons

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.4.2.4 Action Buttons Action buttons are important in the HTTP Interface. Click an action button to do one of these tasks: • Click [Refresh] to see the latest page data.

  • Page 131: Http Interface Page Examples And Descriptions

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5 HTTP Interface Page Examples and Descriptions See Chapter 6. FRONT PANEL OPERATION for detailed descriptions of the configuration and monitoring features available throughout this interface. The page figures provided in this section are intended for reference only.

  • Page 132: Home | Contact

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.1.2 Home | Contact For all product support, please call: +1.240.243.1880 +1.866.472.3963 (toll free USA) Figure 7-7. ‘Home | Contact’ Page 7–12...

  • Page 133: Home | Support

    Figure 7-8. ‘Home | Support’ Page The ‘Home | Support’ page (Figure 7-8) uses Simple Mail Transport Protocol (SMTP) to send e-mail to Comtech EF Data Product Support: cdmipsupport@comtechefdata.com Enter the Contact Information and compose a message in the Problem Report text window.

  • Page 134: Admin (Administration)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.2 Admin (Administration) Pages The ‘Admin’ pages are available only to users who have logged in using the Administrator Name and Password. Click the Admin tab, and then select the Access or SNMP hyperlink to continue.
  • Page 135 DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 Click [Change IP Address]. Click [Reset] to revert to the previously assigned IP Gateway and IP Address/Range, System Account Access Information Admin, Read/Write, and Read Only Names and Passwords: The User name and Password can be any alphanumeric combination with a maximum length of 10 characters.

  • Page 136: Admin | Snmp

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.2.2 Admin | SNMP Sect. 7.2 SNMP Interface The Administrator must use this page to manage the SNMP (Simple Network Management Protocol) settings. Figure 7-10. ‘Admin | SNMP’ Page Simple Network Management – Use the drop-down list to set the Simple Network Management operational setting as Enabled or Disabled.

  • Page 137: Config (Configuration)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.3 Config (Configuration) Pages Click the Config tab, and then select the Converter, Ref, Pre-selects, Utility, or Redundancy hyperlink to continue. 7.5.3.1 Config | Converter Use this page to configure the communications, operations, and alarms/faults handling for the unit.
  • Page 138 DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 Mute Use the drop-down list to set the Configuration Mute Mode as On or Off. Click [Change]. Carrier Mute Mode Use the drop-down list to set the Carrier Mute Mode as On or Off. Click [Change].

  • Page 139: Config | Ref

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.3.2 Config | Ref Use this page for monitor and control of the optional external reference oscillator. Figure 7-12. ‘Config | Ref’ Page Reference Oscillator External Reference Freq – This read-only item displays the operational value of the external reference oscillator (i.e., 5 MHz or 10 MHz) is displayed here.

  • Page 140: Config | Pre-Selects

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.3.3 Config | Pre-selects Use this page to manage the converter operational pre-selects. Figure 7-13. ‘Config | Pre-selects’ Page Pre-Selects You may create (program) up to 32 operating configurations, and load (recall) them as needed.

  • Page 141: Config | Utility

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.3.4 Config | Utility Use this page to configure a variety of down converter operating parameters. Figure 7-14. ‘Config | Utility’ Page Date Enter a date in the form MM/DD/YY (where MM = month [01 to 12], DD = day [01 to 31], and YY = year [00 to 99]).
  • Page 142 DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 Current Active Firmware Image This read-only section identifies the selected Current Active Firmware Image. In this example, Image 2 is the Current Active Firmware Image. Next Reboot Image – Use the drop-down list to select Image 1 or 2. Click [Submit].

  • Page 143: Config | Redundancy

    7.5.3.5 Config | Redundancy See Appendix A. REDUNDANT SYSTEM OPERATION for the functional description of this page. Use this page to configure the DT-4572’s Redundancy Switch Mode. (TOP) Page with Redundancy Mode OFF (BOTTOM) Page with Redundancy Mode ON Figure 7-15. ‘Config | Redundancy’ Page...

  • Page 144: Status

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.4 Status Pages Use these pages to review operational statistics, status windows, and the stored faults table. Click the Status tab, and then select the Summary or Faults hyperlink to continue.

  • Page 145: Status | Faults

    DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 7.5.4.2 Status | Faults Use this read-only page to review the current stored faults. Figure 7-17. ‘Status | Faults’ Page This page features a scrollable window that displays the unread stored faults log in sequential, date-stamped format.
  • Page 146 DT-4572 X-Band Down Converter MN/DT4572.IOM Ethernet Interface Operation Revision 1 Notes: 7–26...

  • Page 147: Overview

    2) The pinout table for the rear panel ‘J1 | COM1’ connector is provided in Sect. 4.2.3 Operational Connections. Serial-based remote monitor and control (M&C) of the DT-4572 X-Band Down Converter is possible by connecting the rear panel EIA-232C/EIA-485 ‘J1 | COM1’...

  • Page 148: Tia/Eia-232C (Rs-232C)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 communication, there are two separate, isolated, independent, differential- mode twisted pairs, each handling serial data in different directions. It is assumed that a 'Controller' device (a PC or dumb terminal) transmits data in a broadcast mode via one of the pairs.

  • Page 149: Access Methods

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 username (default: comtech) and the password (default: comtech), the Telnet server accepts the same operands used by the serial remote interface. 8.3 Access Methods You may access a converter directly by using a physical address, or indirectly through a backup converter by using a virtual address.

  • Page 150: Addresses

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 converters may be mixed on the cable as long as each has a unique device address. In order to indirectly address an online converter in the subsystem, you must provide a virtual address. The virtual address corresponds to the converter's position in the chain, beginning with the number 1.

  • Page 151: Ip Address

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.4.3 IP Address The IP address is a unique address on a network that supports Internet Protocol (i.e., IPv4). An example of a network address using IPv4 is 192.168.1.4 (factory default IP address).

  • Page 152: Baud Rate

    8.5.6 Bus Inactivity Requirement Comtech EF Data recommends that you provide a minimum of 50 milliseconds bus inactivity between the receipt of a response from an addressed converter and issuing the next command on the serial bus.

  • Page 153: Message Structure

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.6 Message Structure The structure of a Command, Response, or Error Message is as follows: • Start Character • Device Address • Command or Response • End of Message String 8.6.1...

  • Page 154: Confirmation Response

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.6.4 Confirmation Response A confirmation will change the start character, and echo the Device Address and Command. Any requested data is appended to the Command. • EXAMPLE: >DEV/COM_xxx{cr}{lf}] 8.6.5 Error Response If a converter cannot execute a Command or detects a protocol violation, an error response is generated.

  • Page 155: Remote Operation - Commands/Queries

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7 Remote Operation – Commands/Queries 8.7.1 Command/Query Quick References 8.7.1.1 Utility Commands/Queries Quick Reference Sect. Item Description Syntax 8.7.2.1 Set Time <DEV/TIM_hh:mm:ss{cr} 8.7.2.2 Set Date <DEV/DAT_mm/dd/yy{cr} 8.7.2.3 Set Time Protocol <DEV/TPE_x{cr}...

  • Page 156: Configuration Commands/Queries Quick Reference

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.1.2 Configuration Commands/Queries Quick Reference Sect. Item Description Syntax 8.7.3.1 Set Frequency <DEV/FRE_xxxxx.xxx{cr} 8.7.3.2 Set IF Frequency <DEV/IFF_xxx{cr} 8.7.3.3 Set Attenuation <DEV/ATT_xx.xx{cr} 8.7.3.4 Select Cold Start Mode <DEV/CLD_xxx{cr} 8.7.3.5 Mute/Unmute Converter <DEV/MUT_xxx{cr}...

  • Page 157: Stored Alarm Queries Quick Reference

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.1.5 Stored Alarm Queries Quick Reference Sect. Item Description Syntax 8.7.6.1 Return Total Stored Alarms <DEV/TSA_{cr} 8.7.6.2 Clear All Stored Alarms <DEV/CAA_YES{cr} 8.7.6.3 List All Stored Alarms <DEV/LAA_{cr} 8.7.2 Utility Commands/Queries 8.7.2.1...

  • Page 158: Tpe (Time Protocol Enable)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.3 TPE (Time Protocol Enable) Use TPE to set or return the Time Protocol. Description Details Set Time Protocol: <DEV/TPE_x{cr} where: x=0 Time protocol disabled 1 Time protocol enabled Confirmation: >DEV/TPE_x{cr}{lf}]...

  • Page 159: Mac (Media Access Control Address)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.6 MAC (Media Access Control Address) Use MAC to return the unique MAC address of the rear panel ‘Ethernet’ M&C port. Description Details Return MAC: <DEV/MAC_{cr} Confirmation: >DEV/MAC_xx-xx-xx-xx-xx-xx{cr}{lf}] where: xx=MAC address byte in hexadecimal 8.7.2.7...

  • Page 160: Spa (Set Physical Address)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.9 SPA (Set Physical Address) Use SPA to set the physical address of the unit. The default address is 001. Description Details Set Physical Address: <DEV/SPA_xxx{cr} where: xxx = 1 to 255 Confirmation: >DEV/SPA_xxx{cr}{lf}]...

  • Page 161: Lcd (Set Lcd Brightness)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.12 LCD (Set LCD Brightness) The LCD legacy command does not control any current production unit hardware. Its syntax is still supported to allow backwards compatibility with initially released chassis existing monitor and control applications. The default LCD brightness is 15.

  • Page 162: Vfd (Vfd Brightness)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.15 VFD (VFD Brightness) Use VFD to set or return the front panel brightness from 0% to 100% in 25% steps. The default VFD brightness is 100. Description Details Set VFD: <DEV/VFD_xxx{cr} where:...

  • Page 163: Ret (Equipment Type)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.18 RET (Equipment Type) Use RET to query the read-only model number and software revision of the unit. Description Details Return Equipment Type: <DEV/RET_{cr} Confirmation: >DEV/RET_xxxxxxxxxx yyyyyyy{cr}{lf}] where: xxxxxxxxxx = Model Number yyyyyyy = Software Version 8.7.2.19...

  • Page 164: Frm (Firmware Information)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.21 FRM (Firmware Information) Use FRM to query the firmware loaded in the current production unit. This includes firmware numbers, versions, and release dates. This query replaces the legacy FRW query.

  • Page 165: Aid (Application Identification)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.2.23 AID (Application Identification) Use AID to create a “free form” message. The intent is to identify the satellite, transponder, beam, destination or other aspects of the application that may be significant to operations.

  • Page 166: Configuration Commands / Queries

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.3 Configuration Commands / Queries 8.7.3.1 FRE (Frequency) Use FRE to set or return the operating frequency. The default RF frequency of the unit is equal to its minimum operating frequency (RF...

  • Page 167: Att (Attenuation)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.3.3 ATT (Attenuation) Use ATT to set or return the attenuation value. The default value is 10.00 dB. Description Details Set Attenuation: <DEV/ATT_ yy.yy{cr} where: yy.yy = 00.00 to 25.00 dB in 0.25 dB steps.

  • Page 168: Cmm (Configure Mute Mode)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.3.6 CMM (Configure Mute Mode) Use CMM to set or return the mute state of the unit during frequency changes. The default state is OFF (output is muted during frequency changes). When mute mode is ON, the unit will retain its mute state upon changing RF frequency.

  • Page 169: Pgm (Program Pre-Select)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 Description Details Set Fault Recovery: <DEV/AFR_xxx{cr} where: xxx = ON or 0FF Confirmation: >DEV/AFR_xxx{cr}{lf}] Return Status: <DEV/AFR_{cr} Confirmation: >DEV/AFR_xxx{cr}{lf}] 8.7.3.9 PGM (Program Pre-select) Use PGM to store up to 32 preset frequency and attenuation settings.

  • Page 170: Clr (Clear Pre-Select Configuration)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.3.11 CLR (Clear Pre-select Configuration) Use CLR to clear a single pre-select value. Description Details Clear a Preset: <DEV/CLR_nn{cr} where: nn = Pre-select Number (01 to 32) Confirmation: >DEV/CLR_nn_Cleared{cr}{lf}] 8.7.3.12 SEL (Select Pre-select Configuration) Use SEL to load a pre-select number configuration.

  • Page 171: Ict (Initialize Chain Command)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.4.2 ICT (Initialize Chain Command) Use ICT to initialize each converter's chain position, including the backup converter. This command is allowed only when you are active in Redundancy Mode. Description...

  • Page 172: Fbu (Force Backup)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 Description Details Switching Mode: <DEV/SAM_xx_y{cr} Confirmation: >DEV/SAM_xx_y{cr}{lf}] Automatic Status: <DEV/SAM_xx_{cr} Confirmation: >DEV/SAM_xx_y{cr}{lf}] where: xx = converter number 01 to 12 y = A for Auto; M for Manual 8.7.4.4 FBU (Force Backup) Use FBU to force a backup condition for maintenance and test purposes.

  • Page 173: Status Queries

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.5 Status Queries Status queries retrieve configuration, maintenance and alarm status in summary form. 8.7.5.1 RCS (Configuration Status) Description Details Configuration Status: <DEV/RCS_{cr} Confirmation: >DEV/RCS_{cr} FRE_xxxxx.xxx{cr} Frequency from 7250 to 7750 MHz (RF...

  • Page 174: Rus (Utility Status)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.5.3 RUS (Utility Status) Description Details Utility Status: <DEV/RUS_{cr} Confirmation: >DEV/RUS_{cr} COMM_aaaaaa{cr} RS-232C or RS-485 ADD_xxx{cr} Address (001 to 255) BR_nnnn{cr} Baud Rate (1200, 2400, 4800, 9600, 19K2, or 38K4)

  • Page 175: Tsc (Terminal Status Change)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.5.6 TSC (Terminal Status Change) Use the TSC query to determine if the status of the terminal has changed since it was last polled. If any of the parameters listed in the RCS or RUS queries have changed as a result of user front panel operations or remote operations, or if any new fault conditions occur, the TSC command returns YES.

  • Page 176: Pacrms (Packed Maintenance Status)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 PACRCS NOTES: 1) If frequency selection is optional 1 kHz step size, the number of 1 kHz steps above the base frequency is 7 bytes in length (aaaaaaa). For 125 kHz frequency step size, the number of 125 kHz steps above the base frequency is 5 bytes in length (aaaaa).

  • Page 177: Pacrus (Packed Utility Status)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.5.10 PACRUS (Packed Utility Status) Description Details Utility Status: <DEV/PACRUS_{cr} Confirmation: >DEV/PACRUS_ abbcdeeffghhii{cr}{lf}] where: = 0=EIA-232, 1=EIA-485 = Address in hex (01 to FF) = 0 if Baud Rate 38400...

  • Page 178: Stored Alarms

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.7.6 Stored Alarms Up to 100 alarms are date- and time-stamped and stored in memory as they occur. The alarm entry is also updated with its date/time of clearance. The entry remains in memory until it is cleared by the CAS command.

  • Page 179: Error Processing

    DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 8.8 Error Processing 8.8.1.1 General Errors Any command or query may generate the following Error Responses instead of a confirmation: >DEV?COM CU CMD UNRECOGNIZED{cr}{lf}] >DEV?COM IP INVALID PARAM{cr}{lf}] >DEV?COM PE PARITY ERROR{cr}{lf}] 8.8.1.2...
  • Page 180 DT-4572 X-Band Down Converter MN/DT4572.IOM Serial Interface Operation Revision 1 Notes: 8–34...

  • Page 181: Appendix A. Redundant System Operation

    Comtech EF Data DT-4572 X-Band Down Converter or the UT-4579 X-Band Up Converter. The Comtech EF Data DT-4572 X-Band Down Converter functions in a redundant system using distributed protection switching in an active "Daisy Chain" configuration. This proprietary configuration distributes the converter protection switching functions in the converters.

  • Page 182: Backup Converter (Bu

    A.2.2 Removable “Personality” Modules See Chapter 2. SPECIFICATIONS or contact Comtech EF Data Product Support for the “personality” modules available for the DT-4572 X-Band Down Converter and the UT-4579 X-Band Up Converter.

  • Page 183: Redundant Configurations

    RSM in the faulted converter to switch to the BU. A.3 Redundant Configurations You may configure the DT-4572 in a variety of subsystem "Daisy Chain" configurations to suit the reliability requirements of your communication system. These configurations include 1:1 or 1:N Redundant Systems.

  • Page 184: Figure A-1. 1:1 Redundant Configuration –Single Source If Output (With Iom And Rsm)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 Figure A-1. 1:1 Redundant Configuration –Single Source IF Output (with IOM and RSM) Figure A-2. 1:1 Redundant Configuration Diagram – Single Source IF Output (with IOM and RSM) A–4...

  • Page 185: Figure A-3. 1:1 Redundant Configuration Diagram – Single Source Rf Input (With Iom And Eqm)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 Figure A-3. 1:1 Redundant Configuration Diagram – Single Source RF Input (with IOM and EQM) Figure A-4. EQM Panel – Connector Locations Figure A-5. 1:1 Redundant Configuration – Dual Source IF Output...

  • Page 186: Figure A-6. 1:1 Redundant Configuration Diagram – Dual Source If Output (With Iom And Rsm)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 Figure A-6. 1:1 Redundant Configuration Diagram – Dual Source IF Output (with IOM and RSM) A–6...

  • Page 187: 1:N Redundant Systems

    DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 A.3.2 1:N Redundant Systems The RSM contains an IF switch that switches the IF output of a faulted online converter to the BU. Figure A-7 shows the cable connections between the converters.

  • Page 188: Figure A-8. Dual Source 1:N Redundant Configuration Diagram (With Psm And Rsm)

    DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 Figure A-8. Dual Source 1:N Redundant Configuration Diagram (with PSM and RSM) A–8...

  • Page 189: Redundant System Configuration

    Chapter 6. FRONT PANEL OPERATION A.4.1.1 Initial Configuration Use the DT-4572 front panel CONFIGREDUNDANCY menu branch to configure your redundant system. Assign a redundancy configuration address (01 to 12) to each online unit. Make sure that you assign the online converter address relative to its proximity to the backup unit (BU);...

  • Page 190: Automatic Configuration Verification

    Figure A-7. A.4.1.2 Automatic Configuration Verification Use the DT-4572 front panel CONFIG FAULTRECOVERY menu branch to select fault recovery operation as Auto. In AUTO mode, failure of an online converter automatically causes switchover to the BU. The easiest way for you to test AUTO mode in the field is to turn off an online unit.

  • Page 191: Figure A-11. Front Panel Example – Down Converter #01 Backup

    DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 Figure A-11 shows the front panel displays after power has been turned off on Converter #01. Note the ON LINE LED is lit on the BU. This indicates that the BU is now providing the frequency translation in place of the faulted unit.

  • Page 192: Manual Configuration And Verification

    Revision 1 A.4.1.3 Manual Configuration and Verification Use the DT-4572 front panel CONFIG FAULTRECOVERY menu branch to select fault recovery operation as Manual. In MANUAL mode, the BU can force switchover of an online unit. This mode also overrides fault status detection of the online units as performed by the BU.
  • Page 193 DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 Figure A-13 shows the front panel displays after the BU forces Converter #01 offline. Note the ON LINE LED allows you to tell whether the BU is currently active and which converter is being bypassed.

  • Page 194: Redundant System Configuration Using The Dt-4572 Http Interface

    Redundant System Configuration Using the DT-4572 HTTP Interface Chapter 7. ETHERNET INTERFACE OPERATION You may use the DT-4572 HTTP Interface to configure and monitor redundancy operations. Log onto the HTTP Interface. Click the Config navigation tab, and then select the Redundancy hyperlink.
  • Page 195 DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 Chain Position Use the drop-down list to assign the unit’s Chain Position as the Backup Unit, or Unit 01 through Unit 12. Chain Length (Backup Unit) – Use the drop-down list to select N/A, or 1:1 through 1:12.

  • Page 196: Offset Adjustment

    DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix A Revision 1 A.4.3 Offset Adjustment Use the offset to compensate for cable and switch losses. When you initially set up and test the system, you must force each converter to backup, and adjust the offset to minimize gain mismatch between the normal and bypassed mode.

  • Page 197: Appendix B. Maintenance And Troubleshooting

    Converter. Procedures are provided for fault isolation to the switch module level. Figure B-1. DT-4572 Signal and Interconnecting Diagram – 1:N Redundancy “Inline” Unit Example (with RSM) Figure B-1 shows an example of the DT-4572 rear panel input and output signal routing, cabling interconnections, and switch module location. B–1...

  • Page 198: Maintenance Testing

    Appendix B Revision 1 B.2 Maintenance Testing The DT-4572 converts the input RF frequency to an output IF frequency. The RF input level is -45 dBm (typical), and the RF output level is 0 dBm (typical). (TOP) Initially Released Chassis (BOTTOM) Current Production Unit Figure B-2.

  • Page 199: Down Converter Faults

    If the voltage exceeds ± 10%, or the power supply module current is not approximately 3.0 amps, or the fault still exists, remove the power supply and return it to Comtech EF Data for repair. 14VDC: A fault ("FT") indicates a voltage level exceeding ± 10% of the power supply voltage.

  • Page 200: Rf Converter Module

    Coarse Loop Detect: A fault (“FT”) indicates that the coarse loop is not locked. Check all connections to the converter module to make sure they are secure. If the fault still exists, remove the Fine Step Module and return it to Comtech EF Data for repair.

  • Page 201: Removable "Personality" Modules

    Revision 1 B.2.4 Removable “Personality” Modules See Chapter 2. SPECIFICATIONS or contact Comtech EF Data Product Support for information about the module(s) specific to your system. Depending on the application, the rear panel module slot accepts an Input/Output Module (IOM), Polarity Switch Module (PSM), Transmit Switch Module (TSM), Equalizer Module (EQM), or Receive Switch Module (RSM).

  • Page 202: Spares

    RF converter level to replace any converter(s) removed from the system for any reason. If sparing at a lower level is desired, contact Comtech EF Data Product Support for the correct spares for your particular converter. B.4 Redundancy Systems – Converter Management B.4.1...
  • Page 203 DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix B Revision 1 b. Set the Address (Chain Position) to match the faulted unit; c. Set the correct frequency and attenuation. 3. Turn OFF the replacement unit power and disconnect the power cord. 4. Remove the existing module (IOM, RSM, TSM, etc.) from the new unit.
  • Page 204 DT-4572 X-Band Down Converter MN/DT4572.IOM Appendix B Revision 1 Notes: B–8...
  • Page 206 2114 85281 WEST TH STREET TEMPE ARIZONA 480 • 333 • 2200 PHONE 480 • 333 • 2161...

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