Comtech EF Data LBC-4000 User manual

LBC-4000
L-Band Up/Down Converter System
Installation and Operation Manual
Firmware Version 1.2.5 and Higher
Includes Model LBC-4000-ST
Part Number MN-LBC-4000
Revision6
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.

LBC-4000
Revision 6
MN-LBC-4000
Copyright © 2020 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: [phone]
Revision History
Rev Date Description
0 - 4 Varies Various updates.
5 Mar 2016 Rewrite manual and FW Update Guide to document Ethernet -ready current production, CDROM part.
6 Dec 2020 Added LBC-4000-ST.
Updated formatting to reflect current company styles.

LBC-4000 L-Band Up/Down Converter System
Revision 6
Table of Contents TOC-1 MN-LBC-4000
Table of Contents
PREFACE ...................................................................................................................................................... I
About this Manual........................................................................................................................................i
Disclaimer.....................................................................................................................................................i
Conventions and References......................................................................................................................i
Patents and Trademarks............................................................................................................................ i
Warnings, Cautions, Notes, and References.............................................................................................ii
Examples of Multi-Hazard Notices.............................................................................................................ii
Recommended Standard Designations .....................................................................................................ii
Safety and Compliance..............................................................................................................................iii
Electrical Safety and Compliance .............................................................................................................iii
Electrical Installation .................................................................................................................................iii
Operating Environment.............................................................................................................................iii
European Union Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive
(1999/5/EC) and EN 301 489-1 ................................................................................................................iii
European Union Electromagnetic Compatibility (EMC) Directive (2004/108/EC) ................................iv
European Union Low Voltage Directive (LVD) (2006/95/EC)................................................................iv
European Union RoHS Directive (2002/95/EC).................................................................................... v
European Union Telecommunications Terminal Equipment Directive (91/263/EEC) ........................... v
CE Mark v
Product Support..........................................................................................................................................v
Comtech EF Data Headquarters................................................................................................................v
Warranty Policy...........................................................................................................................................v
Limitations of Warranty..............................................................................................................................vi
Exclusive Remedies..................................................................................................................................vi
CHAPTER 1. INTRODUCTION...........................................................................................................1–1
1.1 Overview ......................................................................................................................................1–1
1.2 Functional Description ...............................................................................................................1–1
1.2.1 LBC-4000 System Application..................................................................................................1–2
1.2.2 LBC-4000-ST System Application ............................................................................................1–3
1.3 Converter Features .....................................................................................................................1–4
1.3.1 Physical Description..................................................................................................................1–4
1.3.2 Dimensional Envelope..............................................................................................................1–5
1.3.2.1 LBC-4000 Dimensional Envelope.................................................................................1–5
1.3.2.2 LBC-4000-ST Dimensional Envelope ...........................................................................1–6
1.3.3 Front Panel ...............................................................................................................................1–6
1.3.4 Rear Panel................................................................................................................................1–6
CHAPTER 2. SPECIFICATIONS ........................................................................................................2–1
2.1 Physical and Environmental Specifications.............................................................................2–1
2.1.1 Regulatory Compliance ............................................................................................................2–1
2.1.2 Physical Specifications .............................................................................................................2–1
2.1.3 Temperature Range..................................................................................................................2–1
2.1.4 Humidity (Non-condensing) ......................................................................................................2–1
2.1.5 Operational Altitude...................................................................................................................2–1
2.1.6 Shock........................................................................................................................................2–2
2.1.7 Front Panel Features................................................................................................................2–2
2.1.7.1 LED Monitoring..............................................................................................................2–2
2.1.7.2 Vacuum Fluorescent Display (VFD)..............................................................................2–2
2.1.7.3 Keypad ..........................................................................................................................2–2
2.1.7.4 Power Switch.................................................................................................................2–2
2.1.7.5 Modular Design.............................................................................................................2–3

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Table of Contents TOC-2 MN-LBC-4000
2.1.7.5.1 L-Band Up Converter IDU Module.............................................................................2–3
2.1.7.5.2 L-Band Down Converter IDU Module........................................................................2–4
2.1.8 Rear Panel Features.................................................................................................................2–5
2.1.8.1 External Reference Connector......................................................................................2–5
2.1.8.2 RF Connectors Access..................................................................................................2–5
2.1.8.3 IF Connectors Access ...................................................................................................2–5
2.1.8.4 Ethernet Connector.......................................................................................................2–5
2.1.8.5 Serial Connectors..........................................................................................................2–6
2.1.8.6 Chassis Power and Grounding .....................................................................................2–6
2.1.8.6.1 Power Supply Input....................................................................................................2–6
2.1.8.6.2 Grounding..................................................................................................................2–6
CHAPTER 3. INSTALLATION AND STARTUP..................................................................................3–1
3.1 Unpack and Inspect the Shipment ............................................................................................3–1
3.2 Rack Enclosure Installation .......................................................................................................3–3
3.2.1 Rear Support Brackets Kit (Optional) .......................................................................................3–5
3.2.2 Install the Optional Rack Slide Set ...........................................................................................3–6
3.3 Connect External Cables............................................................................................................3–7
3.4 Connect Prime Power.................................................................................................................3–7
3.5 Converter IDU Modules Management .......................................................................................3–7
CHAPTER 4. REAR PANEL CONNECTORS.....................................................................................4–1
4.1 Overview – Cabling Connection Types.....................................................................................4–1
4.1.1 Coaxial Cable Connections ......................................................................................................4–1
4.1.1.1 ‘BNC’ .............................................................................................................................4–2
4.1.1.2 ‘TNC’ .............................................................................................................................4–2
4.1.1.3 Type ‘N’ .........................................................................................................................4–2
4.1.1.4 Type ‘F’..........................................................................................................................4–3
4.1.1.5 Type ‘SMA’ ....................................................................................................................4–3
4.1.2 D-Subminiature Cable Connections .........................................................................................4–3
4.1.3 RJ-45, RJ-48 Cable Connections.............................................................................................4–4
4.2 Unit Connectors ..........................................................................................................................4–5
4.2.1 LBC-4000 Rear Unit Connectors..............................................................................................4–5
4.2.2 LBC-4000-ST Rear Unit Connectors........................................................................................4–8
4.2.3 Power and Ground Connections.............................................................................................4–10
4.2.3.1 Power Interface Module – Standard AC Unit ..............................................................4–10
4.2.3.2 AC Operation Prime Power Connection .....................................................................4–10
4.2.3.3 LBC-4000 Optional -48 VDC Filter Input Module........................................................ 4–11
4.2.3.5 Chassis Ground Interface ...........................................................................................4–12
4.2.3.6 LBC-4000 ON/OFF Power Switch...............................................................................4–12
CHAPTER 5. FIRMWARE UPDATE...................................................................................................5–1
5.1 Firmware Overview .....................................................................................................................5–1
5.1.1 Firmware Update Procedure Summary....................................................................................5–1
5.1.2 About Firmware Numbers, File Versions, and Formats............................................................5–1
5.2 Prepare for the Firmware Download .........................................................................................5–3
5.2.1 Required User-supplied Items ..................................................................................................5–3
5.2.2 Terminal Emulator Program Configuration ...............................................................................5–3
5.2.3 Front Panel Used for Management IP Address and Firmware Information..............................5–3
5.2.3.1 Front Panel Used for Management IPAddress and Firmware Status ..........................5–4
5.2.3.2 HTTP Interface Used for Firmware Information............................................................5–5
5.2.3.3 Serial Interface Used for Firmware Information............................................................5–5
5.2.4 Temporary Folder (Subdirectory) on the User PC....................................................................5–6
5.2.4.1 Windows Desktop Folder Creation................................................................................5–6

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Table of Contents TOC-3 MN-LBC-4000
5.2.4.2 Windows Explorer Folder Creation ...............................................................................5–7
5.2.4.3 Run and Browse Windows Folder Creation..................................................................5–7
5.2.4.4 Windows Command-line or Command Prompt Folder Creation...................................5–8
5.3 Download and Extract Firmware Update Files.........................................................................5–9
5.3.1.1 Windows Desktop Used to View Folder Contents....................................................... 5–11
5.3.1.2 Windows Command-line Used to View Folder Contents............................................ 5–11
5.4 Firmware Files Upload and Unit Update.................................................................................5–11
5.4.1 Important Considerations........................................................................................................ 5–11
5.4.2 “CReflash” Used to Upload the Firmware Files......................................................................5–12
5.4.3 FTP Upload for Firmware Files...............................................................................................5–13
5.4.4 Steps to Complete the Firmware Update Procedure..............................................................5–13
5.4.4.1 Select the Boot Image.................................................................................................5–14
5.4.4.1.1 Front Panel Used to Select the Boot Image............................................................5–14
5.4.4.1.2 Use the HTTP Interface to Select the Boot Image ..................................................5–14
5.4.4.2 Reboot the Unit ...........................................................................................................5–14
5.4.4.2.1 Hard-reboot the Unit from the Rear Panel...............................................................5–14
5.4.4.2.2 Soft-reboot the Unit from the HTTP Interface..........................................................5–15
CHAPTER 6. FRONT PANEL OPERATION.......................................................................................6–1
6.1 Front Panel Overview .................................................................................................................6–1
6.2 LBC-4000 Front Panel.................................................................................................................6–1
6.2.1 LBC-4000-ST Front Panel ........................................................................................................6–3
6.2.2 Vacuum Fluorescent Display (VFD)..........................................................................................6–4
6.2.3 Keypad......................................................................................................................................6–5
6.3 Front Panel Operation – Menu Matrix .......................................................................................6–6
6.3.1 Opening Screen........................................................................................................................6–7
6.3.2 Main Menu ................................................................................................................................6–7
6.3.3 (SELECT:) CONFIG (Configuration) Menu Branch ..................................................................6–7
6.3.3.1 (CONFIG:) CONV-A or CONV-B (Converter Unit A or Unit B) ......................................6–8
6.3.3.1.1 (CONFIG:) CnvA or CnvB FREQ/MUTE...............................................................6–8
6.3.3.1.2 CONFIG CnvA or CnvB ATTEN/SLOPE...............................................................6–9
6.3.3.2 (CONFIG:) REMOTE (Remote Control) Submenu.......................................................6–9
6.3.3.2.1 (REMOTE:) Local ....................................................................................................6–10
6.3.3.2.2 (REMOTE:) SERIAL ................................................................................................6–10
6.3.3.2.3 (REMOTE:) ETHERNET..........................................................................................6–10
6.3.3.3 (CONFIG:) REDUND (Redundancy) Submenu ..........................................................6–13
6.3.3.4 (CONFIG): REFADJ (Reference Oscillator Adjustment).............................................6–13
6.3.3.5 (CONFIG): SPECT-INV (Spectrum Inversion) ............................................................6–14
6.3.4 (SELECT:) MONITOR Menu Branch ......................................................................................6–14
6.3.5 (SELECT:) FAULTS Menu Branch..........................................................................................6–15
6.3.5.1 (FAULTS:) CURRENT.................................................................................................6–15
6.3.5.2 (FAULTS:) STORED....................................................................................................6–16
6.3.5.2.1 (FAULTS:) STORED VIEW ..................................................................................6–16
6.3.5.2.2 (FAULTS:) STOREDCLEAR-ALL.........................................................................6–17
6.3.6 (SELECT:) UTILITY Menu Branch..........................................................................................6–17
6.3.6.1 (UTILITY:) TIME (Real-Time Clock) Submenu............................................................6–17
6.3.6.2 (UTILITY:) DISP (VFD Display) Submenu ..................................................................6–18
6.3.6.3 (UTILITY:) FIRMWARE Submenu...............................................................................6–18
6.3.6.3.1 (FIRMWARE:) INFO ................................................................................................6–18
6.3.6.3.2 (FIRMWARE:) SELECT...........................................................................................6–19
6.3.6.4 (UTILITY:) AID (Application Identification String) Submenu........................................6–20
6.3.6.5 (UTILITY:) LAMPTEST Submenu...............................................................................6–20
6.3.6.6 (UTILITY:) RELAY Submenu.......................................................................................6–20
6.3.6.7 (UTILITY:) SCRSAVER Submenu...............................................................................6–21
6.3.6.7.1 (UTILITY:) SCRSAVER Theme...........................................................................6–21

LBC-4000 L-Band Up/Down Converter System
Revision 6
Table of Contents TOC-4 MN-LBC-4000
6.3.6.7.2 (UTILITY:) SCRSAVER Time ..............................................................................6–22
CHAPTER 7. ETHERNET INTERFACE OPERATION.......................................................................7–1
7.1 Overview ......................................................................................................................................7–1
7.1.1 Prerequisites.............................................................................................................................7–1
7.2 SNMP Interface............................................................................................................................7–2
7.2.1 Management Information Base (MIB) Files..............................................................................7–2
7.2.1.1 Common MIB File..........................................................................................................7–2
7.2.1.2 Traps MIB File...............................................................................................................7–2
7.2.2 SNMP Community Strings ........................................................................................................7–3
7.2.3 SNMP Traps..............................................................................................................................7–3
7.3 Telnet Interface............................................................................................................................7–4
7.3.1 Using HyperTerminal for Telnet Remote Control Operation .....................................................7–4
7.3.1.1 Configure HyperTerminal for Telnet Remote Control Operation ...................................7–5
7.4 HTTP (Web Server) Interface......................................................................................................7–6
7.4.1 HTTP Interface User Login.......................................................................................................7–6
7.4.2 HTTP Interface Features ..........................................................................................................7–8
7.4.2.1 Menu Tree.....................................................................................................................7–8
7.4.2.2 Page Navigation............................................................................................................7–8
7.4.2.3 Page Sections...............................................................................................................7–8
7.4.2.4 Action Buttons...............................................................................................................7–8
7.4.2.4.1 Page Refresh.............................................................................................................7–9
7.4.2.5 Drop-down Lists ............................................................................................................7–9
7.4.2.6 Text or Data Entry..........................................................................................................7–9
7.5 HTTP Interface Page Examples and Descriptions.................................................................7–10
7.5.1 Home Pages...........................................................................................................................7–10
7.5.1.1 Home | Home ..............................................................................................................7–10
7.5.1.2 Home | Contact ........................................................................................................... 7–11
7.5.1.3 Home | Support ...........................................................................................................7–12
7.5.2 Admin (Administration) Pages................................................................................................7–13
7.5.2.1 Admin | Access............................................................................................................7–13
7.5.2.2 Admin | SNMP.............................................................................................................7–15
7.5.3 Config (Configuration) Pages .................................................................................................7–16
7.5.3.1 Config | Conv A / B Pages...........................................................................................7–16
7.5.3.2 Config | Ref .................................................................................................................7–18
7.5.3.3 Config | Utility..............................................................................................................7–19
7.5.3.4 Config | Redundancy...................................................................................................7–20
7.5.3.5 Config | Serial..............................................................................................................7–21
7.5.4 Status Pages...........................................................................................................................7–22
7.5.4.1 Status | Summary........................................................................................................7–22
7.5.4.2 Status | Faults..............................................................................................................7–24
CHAPTER 8. SERIAL INTERFACE OPERATION .............................................................................8–1
8.1 Overview ......................................................................................................................................8–1
8.1.1 Prerequisites.............................................................................................................................8–1
8.1.2 EIA-485.....................................................................................................................................8–2
8.1.3 EIA-232.....................................................................................................................................8–2
8.2 Remote Commands and Queries Overview .............................................................................8–3
8.2.1 Packet Structure........................................................................................................................8–3
8.2.1.1 Start of Packet Character..............................................................................................8–3
8.2.1.2 Target (Device) Address................................................................................................8–3
8.2.1.3 Address Delimiter..........................................................................................................8–5
8.2.1.4 Instruction Code............................................................................................................8–5
8.2.1.5 Instruction Code Qualifier..............................................................................................8–5
8.2.1.5.1 Error Response..........................................................................................................8–5

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Table of Contents TOC-5 MN-LBC-4000
8.2.1.6 Optional Message Arguments.......................................................................................8–6
8.2.1.7 End of Packet................................................................................................................8–6
8.3 Remote Commands and Queries...............................................................................................8–7
8.3.1 Customer Commands...............................................................................................................8–8
APPENDIX A. LBC-4000 UP/DOWN CONVERTER IDU MODULE REMOVAL/RE-INSTALLATIONA–1
A.1 Overview ..................................................................................................................................... A–1
A.2 IDU Module Removal Procedure............................................................................................... A–2
A.3 IDU Module Re-Installation Procedure..................................................................................... A–4
APPENDIX B. REDUNDANCY OPERATION.......................................................................................B–1
B.1 Overview ..................................................................................................................................... B–1
B.2 LBC-4000 Front Panel Operations............................................................................................ B–3
B.2.1 (CONFIG:) REDUND (Redundancy) Submenu........................................................................B–3
B.2.2 Gain Offset for Redundant Operations.....................................................................................B–4
B.3 Redundancy Operations Using the LBC-4000 HTTP Interface.............................................. B–5
B.4 Redundancy Operations Using Serial Remote Control.......................................................... B–6

LBC-4000 L-Band Up/Down Converter System
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Table of Contents TOC-6 MN-LBC-4000
List of Tables
Table 4-1. ‘J1 | COM1’ 2-Wire EIA-485 Pinout..........................................................................................4–7
Table 4-2. ‘J1 | COM1’ 4-Wire EIA-485 Pinout..........................................................................................4–7
Table 4-3. ‘J1 | COM1’ EIA-232C Pinout...................................................................................................4–7
Table 4-4. DC Input Filter Module Pinouts ..............................................................................................4–11
List of Figures
Figure 1-1. LBC-4000 L-Band Up/Down Converter..................................................................................1–1
Figure 1-2. LBC-4000-ST L-Band Up/Down Converter ............................................................................1–1
Figure 1-3. LBC-4000 Typical Application Block Diagram........................................................................1–2
Figure 1-4. LBC-4000 Dimensional Envelope...........................................................................................1–5
Figure 1-5. LBC-4000-ST Dimensional Envelope.....................................................................................1–6
Figure 3-1. LBC-4000/-ST Package Content............................................................................................3–2
Figure 3-2. Rack Enclosure Installation ....................................................................................................3–4
Figure 3-3. Install the Optional Rear-Mounting Support Brackets Kit.......................................................3–5
Figure 3-4. Optional Rack Slide Set Installation .......................................................................................3–6
Figure 4-1. Coaxial Connector Examples .................................................................................................4–1
Figure 4-2. D-Subminiature Connector Examples....................................................................................4–3
Figure 4-3. RJ-45/RJ-48 Connector Example...........................................................................................4–4
Figure 4-5. LBC-4000 Rear Panel View (Optional Redundant Chassis)..................................................4–5
Figure 4-6. LBC-4000 Rear Panel – OBSOLETE.....................................................................................4–5
Figure 4-7. LBC-4000-ST Rear Panel.......................................................................................................4–8
Figure 4-8. AC Power..............................................................................................................................4–10
Figure 4-9. LBC-4000 Optional -48 VDC Filter Input Module with User-Supplied Power Harness.......4–11
Figure 4-10. Chassis Ground Interface...................................................................................................4–12
Figure 4-11. LBC-4000 ON/OFF Power Switch......................................................................................4–12
Figure 6-1. LBC-4000 Front Panel............................................................................................................6–1
Figure 6-2. LBC-4000-ST Front Panel......................................................................................................6–3
Figure 7-1. Telnet Interface Example – Windows Command-line.............................................................7–4
Figure 7-2. Telnet Interface Example – HyperTerminal.............................................................................7–4
Figure 7-3. Configure HyperTerminal........................................................................................................7–5
Figure 7-4. HTTP Interface “Splash” Page Example ................................................................................7–7
Figure 7-5. HTTP Interface Menu Tree (FW Ver. 1.2.5)............................................................................7–8
Figure 7-6. ‘Home | Home’ Page.............................................................................................................7–10
Figure 7-7. ‘Home | Contact’ Page..........................................................................................................7–11
Figure 7-8. ‘Home | Support’ Page..........................................................................................................7–12
Figure 7-9. ‘Admin | Access’ Page ..........................................................................................................7–13
Figure 7-10. ‘Admin | SNMP’ Page .........................................................................................................7–15
Figure 7-11. ‘Config | Converter A/ B’ Pages ..........................................................................................7–16
Figure 7-12. ‘Config | Ref’ Page..............................................................................................................7–18
Figure 7-13. ‘Config | Utility’ Page...........................................................................................................7–19
Figure 7-14. ‘Config | Redundancy’ Page...............................................................................................7–20
Figure 7-15. Config | Serial page............................................................................................................7–21
Figure 7-16. ‘Status | Summary’ Page ....................................................................................................7–22
Figure 7-17. ‘Status | Faults’ Page..........................................................................................................7–24
Figure A-1. LBC-4000 Chassis – IDU Module Bays .................................................................................A–1
Figure B-1. LBC-4000 Redundancy – Functional Schematic...................................................................B–1
Figure B-2. LBC-4000 Rear Panel – Redundancy Cabling Schematic ....................................................B–2
Figure B-4. ‘Config | Redundancy’ Page...............................................................................................B–5

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Table of Contents TOC-7 MN-LBC-4000
Acronym List
Acronym Description
First Use
Page Numbe
AID Application Identification 6-20
BDC Block Down Converter 7-23
BUC Block Up Converter 7-23
CEFD Comtech EF Data 1-1
DC Direct Current 1-1
ESD Electrostatic Discharge 3-1
FTP File Transfer Protocol 5-13
IDU Interface Data Unit 1-2
LED Light Emitting Diode 1-5
M&C Monitor and Control 1-2
MIB Management Information Base 7-1
NMS Network Management System 7-1
OID Object Identifier 7-2
OS Open System Interconnection 5-6
PC Personal Computer 5-1
SMTP Simple Mail Transfer Protocol 7-12
SNMP Simple Network Management Protocol 7-1
USB Universal Serial Bus 4-4
VFD Vacuum Fluorescent Display 1-5

LBC-4000 L-Band Up/Down Converter System
Revision 6
Table of Contents TOC-8 MN-LBC-4000
Units of Measurement
Unit / Symbol
Definition
Ω
Ohm
A
Ampere
bps
bits per second
˚C
Celsius (degrees)
Hz
Hertz
kHz
kiloHertz
dB
decibel
dBc
Decibels relative to the carrier
dBm
Decibel-milliwatts
˚F
Fahrenheit (degrees)
Kbps
Kilobit per second
kg
kilogram
ksps
Kilosymbols per second
lbs.
pounds
mA
Milli-amp
Mbps
Megabit per second
MHz
Megahertz
mm
millimeter
ms
millisecond
Msps
Megasymbols per second
mW
milliwatt
in.
inch
Ppm
Packets per minute
Pps
Packets per second
SR
Symbols per second
ųF
100 micro-farads
W
Watt
V
Volt

LBC-4000 L-Band Up/Down Converter System
Revision 6
Preface i MN-LBC-4000
PREFACE
About this Manual
This manual provides installation and operation information for the Comtech EF Data
LBC-4000/-ST L-Band Up/Down Converter System. This document is intended for the persons
responsible for the operation and maintenance of the LBC-4000/-ST.
Disclaimer
Comtech EF Data has reviewed this manual thoroughly in order to provide an easy-to-use guide
to this 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 there are any questions regarding this equipment or the information in this manual, please
contact Comtech EF Data Product Support.
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.

LBC-4000 L-Band Up/Down Converter System
Revision 6
Preface ii MN-LBC-4000
Warnings, Cautions, Notes, and References
A WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
A 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.
A NOTE gives you important information about a task or the equipment.
A REFERENCE directs you to important operational information or details
furnished elsewhere, either in the manual or in adjunct Comtech EF Data
publications.
Examples of Multi-Hazard Notices
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.All other references in the manual refer to EIA designations.
It is important that you review and understand the Safety
and Compliance information that follows.

LBC-4000 L-Band Up/Down Converter System
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Preface iii MN-LBC-4000
Safety and Compliance
Electrical Safety and Compliance
The unit complies with the EN 60950 Safety of Information Technology Equipment (Including
Electrical Business Machines) safety standard.
Electrical Installation
CONNECT THE UNIT TO A POWER SYSTEM THAT HAS SEPARATE GROUND, LINE
AND NEUTRAL CONDUCTORS. DO NOT CONNECT THE UNIT WITHOUT A DIRECT
CONNECTION TO GROUND.
Sect 4.2.2 Unit Ground Connection
Operating Environment
DO NOT OPERATE THE UNIT IN ANY OF THESE EXTREME OPERATING
CONDITIONS:
•AMBIENT TEMPERATURES LESS THAN 0°C (32°F) OR MORE THAN 50°C
(122°F).
•PRECIPITATION, CONDENSATION, OR HUMID ATMOSPHERES OF 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 301
489-1
Independent testing verifies that the unit complies with the European Union R&TTE Directive, its
reference to EN 301 489-1 (Electromagnetic compatibility and Radio spectrum Matters [ERM];
Electromagnetic Compatibility [EMC] standard for radio equipment and services, Part 1: Common
technical requirements), and the Declarations of Conformity for the applicable directives,
standards, and practices that follow:

LBC-4000 L-Band Up/Down Converter System
Revision 6
Preface iv MN-LBC-4000
European Union Electromagnetic Compatibility (EMC) Directive
(2004/108/EC)
•EN 55022 Class A (Emissions) – Limits and Methods of Measurement of Radio
Interference Characteristics of Information Technology Equipment.
•EN 55024 (Immunity)– Information Technology Equipment: Immunity Characteristics,
Limits, and Methods of Measurement.
•EN 61000-3-2 – Harmonic Currents Emission
•EN 61000-3-3 – Voltage Fluctuations and Flicker.
•Federal Communications Commission Federal Code of Regulation FCC Part 15,
Subpart B.
TO ENSURE THAT THE UNIT COMPLIES WITH THESE STANDARDS, OBEY
THESE INSTRUCTIONS:
•Operate the unit with its cover on at all times.
•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.
•Use coaxial cable that is of good quality for connections to the Switch Module Type ‘N’
female connectors.
European Union Low Voltage Directive (LVD) (2006/95/EC)
Symbol Description
<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 Protective Earth
Fuse Chassis Ground
For additional symbols, refer to Warnings, Cautions and Notes listed earlier
in this Preface.
!

LBC-4000 L-Band Up/Down Converter System
Revision 6
Preface v MN-LBC-4000
European Union RoHS Directive (2002/95/EC)
This unit satisfies (with exemptions) the requirements specified in the European Union Directive
on the Restriction of Hazardous Substances in Electrical and Electronic Equipment (EU RoHS,
Directive 2002/95/EC).
European Union Telecommunications Terminal Equipment Directive
(91/263/EEC)
In accordance with the European Union Telecommunications Terminal Equipment Directive
91/263/EEC, the unit should not be directly connected to the Public Telecommunications Network.
CE Mark
Comtech EF Data declares that the unit meets the necessary requirements for the CE Mark.
Product Support
For all product support, please call:
+1.240.243.1880
+1.866.472.3963 (toll free USA)
Comtech EF Data Headquarters
http://www.comtechefdata.com
Comtech EF Data Corp.
2114 West 7th Street
Tempe, Arizona USA 85281
+1.480.333.2200
Warranty Policy
Comtech EF Data products are warranted against defects in material and workmanship for a
specific period from the date of shipment, and this period varies by product. In most cases, the
warranty period is two years. During the warranty period, Comtech EF Data will, at its option,
repair or replace products that prove to be defective. Repairs are warranted for the remainder of
the original warranty or a 90 day extended warranty, whichever is longer. Contact 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. 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.

LBC-4000 L-Band Up/Down Converter System
Revision 6
Preface vi MN-LBC-4000
All equipment returned for warranty repair must have a valid RMAnumber issued prior to return
and be marked clearly on the return packaging. Comtech EF Data strongly recommends all
equipment be returned in its original packaging.
Comtech EF Data Corporation’s obligations under this warranty are limited to repair or
replacement of failed parts, and the return shipment to the buyer of the repaired or replaced
parts.
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 part of the product, or is damaged as the result
of use in a way or with equipment that had not been previously approved by Comtech EF Data
Corporation.
The warranty does not apply to any product or parts thereof where the serial number or the serial
number of any of its parts has been altered, defaced, or removed.
The warranty does not cover damage or loss incurred in transportation of the product. The
warranty does not cover replacement or repair necessitated by loss or damage from any cause
beyond the control of Comtech EF Data Corporation, such as lightning or other natural and
weather related events or wartime environments.
The warranty does not cover any labor involved in the removal and or reinstallation of warranted
equipment or parts on site, or any labor required to diagnose the necessity for repair or
replacement.
The warranty excludes any responsibility by Comtech EF Data Corporation for incidental or
consequential damages arising from the use of the equipment or products, or for any inability to
use them either separate from or in combination with any other equipment or products.
A fixed charge established for each product will be imposed for all equipment returned for
warranty repair where Comtech EF Data Corporation cannot identify the cause of the reported
failure.
Exclusive Remedies
Comtech EF Data Corporation’s warranty, as stated is in lieu of all other warranties, expressed,
implied, or statutory, including those of merchantability and fitness for a particular purpose. The
buyer shall pass on to any purchaser, lessee, or other user of Comtech EF Data Corporation’s
products, the aforementioned warranty, and shall indemnify and hold harmless Comtech EF Data
Corporation from any claims or liability of such purchaser, lessee, or user based upon allegations
that the buyer, its agents, or employees have made additional warranties or representations as to
product preference or use.
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.

LBC-4000 L-Band Up/Down Converter System
Revision 6
Introduction 1–1 MN-LBC-4000
Chapter 1. INTRODUCTION
1.1 Overview
Comtech EF Data (CEFD)’s LBC-4000 (Figure 1-1) and the LBC-4000-ST (Figure 1-2) L-Band
Up/Down Converter System are designed to interface legacy 70 MHz or 140 MHz equipment to
tri-band or quad-band block converters.
Figure 1-1. LBC-4000 L-Band Up/Down Converter
Figure 1-2. LBC-4000-ST L-Band Up/Down Converter
1.2 Functional Description
Chapter 2. SPECIFICATIONS
Use standard, off-the-shelf coaxial cabling to connect external equipment (e.g., a modem), to
each internal converter module. Use coaxial cabling to connect the output for each module to RF
equipment either at the same location or at the antenna location. When configured with the
redundancy option, the system may contain two diode “OR-ed” internal power supplies for
increased reliability.
See Chapter 2. SPECIFICATIONS for component specifications.

LBC-4000 L-Band Up/Down Converter System
Revision 6
Introduction 1–2 MN-LBC-4000
1.2.1 LBC-4000 System Application
Figure 1-3. LBC-4000 Typical Application Block Diagram
The LBC-4000 features:
•Flexible configuration: Two Interface Data Unit (IDU) module bays allow for (1) Up
Converter Module and (1) Down Converter Module; Dual Up Converters Modules; or
Dual Down Converters Modules.
•70 MHz ±18 MHz IF (optional 140 MHz ±36 MHz)
•Auto band-sensing capabilities
•No spectral inversion
•Low phase noise
•1 kHz step size
•5 dB gain adjustment
•1:1 Redundancy availability
•Remote Monitor and Control (M&C) via the EIA-485/232 Serial Interface or the Ethernet
Interface
•Meets or exceeds MIL-STD-188-164A

LBC-4000 L-Band Up/Down Converter System
Revision 6
Introduction 1–3 MN-LBC-4000
1.2.2 LBC-4000-ST System Application
The LBC-4000-ST is the “single converter only” version of the LBC-4000, but with a few
modifications:
•Front panel mounted 70/140 MHz IF and L-band RF sample ports (nominal 20 dBc
coupling for either)
•No integrated switching option
•Rear panel power switch
•Single power input and supply
•Single hard mounted converter module (installed as CONV A) and is not field replaceable
Operation is the same as a standard LBC-4000 unit with a single module installed in the CONV A
location.
References to redundant switching, CONV B, and dual power supplies are not applicable.

LBC-4000 L-Band Up/Down Converter System
Revision 6
Introduction 1–4 MN-LBC-4000
1.3 Converter Features
1.3.1 Physical Description
For:
See:
Rack installation and mounting
instructions
Chapter 3. INSTALLATION
AND
STARTUP
Cabling Connections
Chapter 4. REAR PANEL
CONNECTORS
Firmware Updating Instructions
Chapter 5. FIRMWARE UPDATE
Local control operating
instructions and procedures
Chapter 6. FRONT PANEL
OPERATION
Remote control operating
instructions and procedures
Chapter 7. ETHERNET INTERFACE
OPERATION and
Chapter 8. SERIAL INTERFACE
OPERATION
Maintenance procedures
Appendix A. UP/DOWN
CONVERTER IDU MODULE
REMOVAL / RE-INSTALLATION
Redundant system operating
instructions and procedures
Appendix B. REDUNDANCY
OPERATION
The LBC-4000/-ST 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 unit may also be mounted into
the rack using the provided slide mechanisms to allow service without removal from the rack. The
unit may be freestanding if desired.
The LBC‐4000 drop‐down front panel provides access to the ON/OFF switch and installation bays
for two Up Converter modules, two Down Converter modules, or one of each.
All operator controls, indicators and displays are located on the LBC‐4000-ST front panel.
External interface connectors, including those intended for Ethernet or Serial Remote M&C, are
located on the LBC‐4000-ST rear panel.