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LCS
-
4
L-Band Combiner Switch
Installation and Operation Manual
Part Number MN/LCS4.IOM Revision 1
LCS-4
L-Band Combiner Switch
Installation and Operation Manual
Comtech EF Data is an ISO
9001 Registered Company.
Part Number MN/LCS4.IOM
Revision 1
February 2, 2006
Copyright © Comtech EF Data, 2006. 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.
Customer Support
Contact the Comtech EF Data Customer Support Department for:
• Product support or training
• Information on upgrading or returning a product
• Reporting comments or suggestions concerning manuals
A Customer Support representative may be reached at:
Comtech EF Data
Attention: Customer Support Department
2114 West 7th Street
Tempe, Arizona 85281 USA
480.333.2200 (Main Comtech EF Data Number)
480.333.4357 (Customer Support Desk)
480.333.2161 FAX
Or, E-Mail can be sent to the Customer Support Department at:
Contact us via the web at www.comtechefdata.com
.
To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or
replacement:
1. Request a Return Material Authorization (RMA) number from the Comtech EF
Data Customer Support Department.
2. Be prepared to supply the Customer Support representative with the model
number, serial number, and a description of the problem.
3. To ensure that the product is not damaged during shipping, pack the product in
its original shipping carton/packaging.
4. Ship the product back to Comtech EF Data. (Shipping charges should be
prepaid.)
For more information regarding the warranty policies, see Warranty Policy, p. xi.
ii
Table of Contents
CHAPTER 1. INTRODUCTION .............................................................................................1–1
1.1 Introduction.......................................................................................................................................1–1
1.2 Functional Description ..................................................................................................................... 1–2
1.3 Features.............................................................................................................................................. 1–4
1.4 Optional Items...................................................................................................................................1–4
1.5 External BUC/LNB Fault Input ................................................................................................ 1–5
CHAPTER 2. INSTALLATION ..............................................................................................2–1
2.1 Unpacking.......................................................................................................................................... 2–1
Unpack the LCS-4 as follows: .................................................................................................................. 2–1
2.2 Mounting............................................................................................................................................ 2–2
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CHAPTER 3. SYSTEM OPERATION....................................................................................3–1
3.1 Coaxial Connectors........................................................................................................................... 3–1
3.2 Multi-Pin Connector Pinout............................................................................................................. 3–2
3.3 Remote Port Connector.................................................................................................................... 3–2
3.4 Fault and Online Status Connector................................................................................................. 3–3
3.5 (Future Option) Modulator Faults and TX On/Off Connector .................................................... 3–4
CHAPTER 4. LOW NOISE BLOCK ASSEMBLY .................................................................4–1
4.1 General...............................................................................................................................................4–1
4.2 Options............................................................................................................................................... 4–2
4.3 Redundant C-Band LNB Installation .............................................................................................4–2
4.3.1 Tools Required............................................................................................................................. 4–2
4.3.2 C-Band LNB Mounting Kits........................................................................................................ 4–2
4.3.3 Assemble Redundant C-Band LNB ............................................................................................. 4–3
4.3.4 C-Band LNB Installation .............................................................................................................4–6
4.4 Ku-Band LNB Installation ............................................................................................................... 4–7
4.4.1 Tools Required............................................................................................................................. 4–7
4.4.2 Ku-Band LNB Mounting Kits...................................................................................................... 4–7
4.4.3 Assemble Redundant Ku-Band LNB........................................................................................... 4–8
4.4.4 Ku-Band LNB Installation ......................................................................................................... 4–10
4.5 Settings (LNB) Lo, Mix and Spectrum.......................................................................................... 4–11
4.5.1 C-Band ....................................................................................................................................... 4–11
4.5.2 Ku-Band..................................................................................................................................... 4–11
CHAPTER 5. BLOCK UP CONVERTER .............................................................................5–1
5.1 General...............................................................................................................................................5–1
5.2 C-Band Redundant BUC Assembly Procedure.............................................................................. 5–1
5.2.1 Assemble Waveguide Switch Kit, AS/9528-1............................................................................. 5–2
5.2.2 Assemble BUC Mounting Kit (KT/9826-1) ................................................................................5–3
5.3 Ku-Band Redundant BUC Assembly Procedures.......................................................................... 5–4
5.3.1 Assemble Waveguide Switch Kit, PL/9527-1 ............................................................................. 5–4
5.3.2 Assemble Ku-Band Redundant BUCs ......................................................................................... 5–5
5.4 LO, MIX and Spectrum Settings ..................................................................................................... 5–7
5.4.1 C-Band ......................................................................................................................................... 5–7
5.4.2 Ku-Band....................................................................................................................................... 5–8
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5.5 Single-Thread BUC Installation....................................................................................................... 5–9
5.5.1 Tools Required............................................................................................................................. 5–9
5.5.2 Mounting Kits .............................................................................................................................. 5–9
5.6 Installation....................................................................................................................................... 5–11
CHAPTER 6. CABLE INSTALLATION .................................................................................6–1
6.1 Introduction.......................................................................................................................................6–1
6.2 Single Configuration Cable Installation ......................................................................................... 6–2
6.3 Redundant Configuration Cable Installation................................................................................. 6–3
CHAPTER 7. FRONT PANEL CONTROL ............................................................................7–1
7.1 Introduction.......................................................................................................................................7–1
7.2 Description......................................................................................................................................... 7–1
7.2.1 BUC Control ................................................................................................................................ 7–2
7.2.2 LNB Control ................................................................................................................................7–3
7.2.3 Current Calibration ......................................................................................................................7–4
7.2.4 Redundancy Mode ....................................................................................................................... 7–4
7.2.5 LED Conditions ...........................................................................................................................7–5
7.3 Operation........................................................................................................................................... 7–6
7.3.1 AUTO / MAN Operation ............................................................................................................. 7–6
7.3.2 CAL Switch and LED Operation ................................................................................................. 7–6
7.3.3 LNB Voltage/Current Turn ON ................................................................................................... 7–7
7.3.4 ODU/BUC or LNB Online Switch ..............................................................................................7–7
7.4 Fault Definitions for Switchover for LNB or ODU/BUC .............................................................. 7–7
APPENDIX A. REMOTE CONTROL OPERATION...................................................................1
A.1 description............................................................................................................................................. 1
A.1.1 EIA-485........................................................................................................................................... 1
A.1.2 EIA-232........................................................................................................................................... 2
A.2 Basic Protocol ....................................................................................................................................... 2
A.2.1 Packet Structure ..............................................................................................................................3
A.3 Commands or Responses..................................................................................................................... 6
APPENDIX B. SPECIFICATIONS .............................................................................................1
B.1 General Specification ........................................................................................................................... 1
B.2 Environmental and Physical Specifications ....................................................................................... 3
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Figures
Figure 1-1. LCS-4 L-Band Combiner Switch.....................................................................................1–2
Figure 1-2. L-Band Multi-Modem Module Block Diagram (Redundancy) .........................................1–3
Figure 2-1. Typical Installation of the Optional Mounting Bracket, KT/6228-1 .................................2–3
Figure 3-1. Rear Panel......................................................................................................................3–1
Figure 4-1. C-Band Redundant LNB (KT/9526-1). ...........................................................................4–3
Figure 4-2. Switch Port Locations. ....................................................................................................4–4
Figure 4-3. C-Band LNB Switch........................................................................................................4–5
Figure 4-4. Ku-Band Redundant LNB (KT/10176-1).........................................................................4–8
Figure 4-5 Switch Port Locations .....................................................................................................4–9
Figure 4-6. Ku-Band LNB Switch ......................................................................................................4–9
Figure 5-1. Mounting Kit, KT/9928-1...............................................................................................5–10
Figure 6-1. Single Configuration Cable Installation ..........................................................................6–3
Figure 6-2. Redundant Configuration Cable Installation...................................................................6–5
Figure 7-1. LCS-4 Front Panel..........................................................................................................7–1
Tables
Table 3-1. Coaxial Connectors..........................................................................................................3–1
Table 3-2. Multi-Pin Connector Pinout ..............................................................................................3–2
Table 3-3. Multi-Pin Connector Pinout ..............................................................................................3–2
Table 4-1. For C-Band: LO and MIX Information for Demodulator and LNB..................................4–11
Table 4-2. For Ku-Band: LO and MIX Information for Demodulator and LNB ................................4–11
Table 5-1. LO, MIX, and MOD Spectrum Settings for Modulator and BUC......................................5–7
Table 5-2. LO, MIX, and MOD Spectrum Settings for Modulator and BUC......................................5–8
Table 5-3. Optional: C-Band Mounting Kit, KT/5738-1 (BUC to OMT) .............................................5–9
Table 5-4. Optional: Ku-Band Mounting Kit, KT/8924-1 (BUC to OMT) ...........................................5–9
Table 7-1. Fault Definitions for Switchover for LNB or ODU / BUC ..................................................7–7
Table B-1. General Specifications ................................................................................................... B–1
Table B-2. Environmental and Physical Specification ..................................................................... B–3
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About this Manual
This manual provides installation and operation information for the Comtech EF Data
LCS-4 L-Band Combiner Switch. This is a technical document intended for earth station
engineers, technicians, and operators responsible for the operation and maintenance of
the LCS-4.
Conventions and References
Cautions and Warnings
CAUTION
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.
WARNING
WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
IMPORTANT
IMPORTANT indicates a statement that is associated with the task
being performed.
Metric Conversion
Metric conversion information is located on the inside back cover of this manual. This
information is provided to assist the operator in cross-referencing English to Metric
conversions.
Trademarks
Other product names mentioned in this manual may be trademarks or registered
trademarks of their respective companies and are hereby acknowledged.
Reporting Comments or Suggestions Concerning this Manual
Comments and suggestions regarding the content and design of this manual will be
appreciated. To submit comments, please contact:
Comtech EF Data Technical Publications Department: [email protected]
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ELECTRICAL SAFETY
The LCS-4 has been shown to comply with the following safety standard:
• EN 60950: Safety of Information Technology Equipment, including electrical business
machines.
The equipment is rated for operation over the range 100 - 240 volts AC. It has a maximum
power consumption of 2.9 amps.
FUSES
The LCS-4 is fitted with two fuses, one each for line and neutral connections. These are contained
within the body of the IEC power connector, behind a small plastic flap. For 115 and 130 volt AC
operation, use T3, 15A, TO.75A, 20mm fuses.
IMPORTANT
For continued operator safety, always replace the fuses with the
correct type and rating.
Environmental
The LCS-4 shall not be operated in an environment where the unit is exposed to extremes
of temperature outside the ambient range 0 to 50°C (32 to 122°F), precipitation,
condensation, or humid atmospheres above 95% RH, altitudes (un-pressurized) greater
than 2000 meters, excessive dust or vibration, flammable gases, corrosive or explosive
atmospheres.
Operation in vehicles or other transportable installations that are equipped to provide a
stable environment is permitted. If such vehicles do not provide a stable environment,
safety of the equipment to EN60950 may not be guaranteed.
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Installation
The installation and connection to the line supply must be made in compliance to local or
national wiring codes and regulations.
The LCS-4 is designed for connection to a power system that has separate ground, line
and neutral conductors. The equipment is not designed for connection to power system
that has no direct connection to ground.
The LC-4 is shipped with a line inlet cable suitable for use in the country of operation. If
it is necessary to replace this cable, ensure the replacement has an equivalent
specification. Examples of acceptable ratings for the cable include HAR, BASEC and
HOXXX-X. Examples of acceptable connector ratings include VDE, NF-USE, UL, CSA,
OVE, CEBEC, NEMKO, DEMKO, BS1636A, BSI, SETI, IMQ, KEMA-KEUR and
SEV.
International Symbols:
Symbol Definition Symbol Definition
~
Alternating Current
Protective Earth
Fuse
Chassis Ground
Telecommunications Terminal Equipment Directive
In accordance with the Telecommunications Terminal Equipment Directive 91/263/EEC,
this equipment should not be directly connected to the Public Telecommunications
Network.
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LCS-4 L-Band Combiner Switch Revision 1
Preface MN/LCS4.IOM
EMC (Electromagnetic Compatibility)
In accordance with European Directive 89/336/EEC, the LCS-4 has been shown, by
independent testing, to comply with the following standards:
Emissions: EN 55022 Class B - Limits and methods of measurement of radio interference
characteristics of Information Technology Equipment.
(Also tested to FCC Part 15 Class B)
Immunity: EN 50082 Part 1 - Generic immunity standard, Part 1: Domestic, commercial
and light industrial environment.
Additionally, the LCS-4 has been shown to comply with the following standards:
EN 61000-3-2 Harmonic Currents Emission
EN 61000-3-3 Voltage Fluctuations and Flicker
EN 61000-4-2 ESD Immunity
EN 61000-4-4 EFT Burst Immunity
EN 61000-4-5 Surge Immunity
EN 61000-4-6 RF Conducted Immunity
EN 61000-4-8 Power frequency Magnetic Field Immunity
EN 61000-4-9 Pulse Magnetic Field Immunity
EN 61000-4-11 Voltage Dips, Interruptions, and Variations Immunity
EN 61000-4-13 Immunity to Harmonics
IMPORTANT
In order that the Modem continues to comply with these standards,
observe the following instructions:
• Connections to the transmit and receive IF ports (Type N and Type F, female,
connectors) should be made using a good quality coaxial cable - for example
RG58/U (50Ω or RG59/U (75Ω).
• All 'D' type connectors attached to the rear panel must have back-shells that
provide continuous metallic shielding. Cable with a continuous outer shield
(either foil or braid, or both) must be used, and the shield must be bonded to the
back shell.
• The equipment must be operated with its cover on at all times. If it becomes
necessary to remove the cover, the user should ensure that the cover is correctly
re-fitted before normal operation commences.
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Preface MN/LCS4.IOM
Warranty Policy
This Comtech EF Data product is warranted against defects in material and workmanship
for a period of 24 months from the date of shipment. During the warranty period,
Comtech EF Data will, at its option, repair or replace products that prove to be defective.
For equipment under warranty, the customer is responsible for freight to Comtech EF
Data and all related custom, taxes, tariffs, insurance, etc. Comtech EF Data is
responsible for the freight charges only for return of the equipment from the factory to
the customer. Comtech EF Data will return the equipment by the same method (i.e., Air,
Express, Surface) as the equipment was sent to Comtech EF Data.
Limitations of Warranty
The foregoing warranty shall not apply to defects resulting from improper installation or
maintenance, abuse, unauthorized modification, or operation outside of environmental
specifications for the product, or, for damages that occur due to improper repackaging of
equipment for return to Comtech EF Data.
No other warranty is expressed or implied. Comtech EF Data specifically disclaims the
implied warranties of merchantability and fitness for particular purpose.
Exclusive Remedies
The remedies provided herein are the buyer's sole and exclusive remedies. Comtech EF
Data shall not be liable for any direct, indirect, special, incidental, or consequential
damages, whether based on contract, tort, or any other legal theory.
Disclaimer
Comtech EF Data has reviewed this manual thoroughly in order to provide an easy-to-use
guide to your equipment. All statements, technical information, and recommendations in
this manual and in any guides or related documents are believed reliable, but the accuracy
and completeness thereof are not guaranteed or warranted, and they are not intended to
be, nor should they be understood to be, representations or warranties concerning the
products described. Further, Comtech EF Data reserves the right to make changes in the
specifications of the products described in this manual at any time without notice and
without obligation to notify any person of such changes.
If you have any questions regarding your equipment or the information in this manual,
please contact the Comtech EF Data Customer Support Department.
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Chapter 1. INTRODUCTION
1.1 INTRODUCTION
The LCS-4 L-Band Combiner Switch (Figure 1-1) is available in the following configurations:
• Single Configuration (C-Band, Ku-Band, or L-Band)
• Redundant Configuration (C-Band, Ku-Band, or L-Band)
IMPORTANT
Procedures provided in this manual are based on utilizing Comtech EF Data
equipment. If other user equipment is utilized, the customer shall obtain the
documentation required to operate with the LCS-4 L-Band Combiner Switch.
The LCS-4 L-Band Combiner Switch has a 4-way transmit (TX) and Receive (RX) path
combiner/splitter.
• Combines four TX L-Band signals from L-Band modulators for delivery to an Outdoor
Unit (ODU) or Block Up Converter (BUC).
• The unit receives an L-Band signal from an LNB and splits it into four outputs for
delivery to four L-Band demodulators.
• The unit provides current monitoring and switch drive capability for a 1:1 BUC/LNB
system
• The unit provides a 10 MHz reference for two ODU/BUCs and two LNBs. This
eliminates the need for a high stability reference in the L-Band modem.
• The 10 MHz reference can be provided to four modems.
• FSK signals from one of the four modulators are passed through to the ODU/BUC.
• The unit supports hot swap redundant power supplies for itself and the ODU/BUC.
• Redundant, but not swappable, LNB power is developed internally.
• Redundant, but not swappable, power is internally generated for the ODU/BUC and LNB
switch drivers.
1–1
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Introduction MN/LCS4.IOM
Figure 1-1. LCS-4 L-Band Combiner Switch
1.2 FUNCTIONAL DESCRIPTION
On the TX-side, the TX signals of up to four modems are combined. The combined output is
transmitted to one of the two outputs that feed an antenna system. Each TX output provides a
10 MHz BUC reference signal, a BUC power supply, and FSK communications. Each 10 MHz
BUC reference and power supply has an independent On/Off control. Figure 1-2 shows a block
diagram of the unit.
On the RX-side, one of the two antenna systems feed a splitter. The splitter outputs provide the
RX signal for up to four modem receivers. Each RX input provides a 10 MHz LNB reference
signal, a LNB power supply, and DESQ communications. Each 10 MHz LNB reference and
power supply has an independent On/Off control. The L-Band Multi-Modem has redundant
internal power supplies, BUC power supplies, and LNB power supplies. L-Band Multi-Modem
Module also provides a driver for an RF (baseball) switch.
1–2
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Introduction MN/LCS4.IOM
L-Band
Σ
&
DC Blk
L-Band
Σ
&
DC Blk
FSK
Select
FSK
Select
DC, FSK, 10 MHz
Insertion
DC, FSK, 10 MHz
Insertion
FSK
BUC PS B
FSK
10 MHz B
DC, FSK, 10 MHz
Insertion
DC, FSK, 10 MHz
Insertion
BUC PS A
FSK
10 MHz A
DC, 10 MHz
Insertion
DC, 10 MHz
Insertion
LNB PS B
DC, 10 MHz
Insertion
DC, 10 MHz
Insertion
LNB PS A
10 MHz A
10 MHz B
L-Band
÷
&
DC Blk
L-Band
÷
&
DC Blk
BUC PS A
BUC PS A
BUC PS B
BUC PS B
LNB PS A
LNB PS A
LNB PS B
LNB PS B
Unit PS A
Unit PS A
Unit PS B
Unit PS B
RF Switch
PS & Driver
RF Switch
PS & Driver
Host
485 / 232
Host
485 / 232
BUC Control
& Sense
LNB Control
& Sense
Logic &
Control
Logic &
Control
BUC A
BUC A
BUC B
BUC B
LNB A
LNB A
LNB B
LNB B
L-Band
Modulators
4 x Type N
L-Band
Demodulators
4 x Type F
Prime
Power A
Prime
Power B
Diode
Or
Diode
Or
H
o
t
S
w
a
p
H
o
t
S
w
a
p
Mod I/O
Mod I/O
Fan
Monitors
Fan
Monitors
LCS-4
Fault Relay
Status
Fault Relay
Status
Int / Ext
10 MHz
VCXO
PLL
Int / Ext
10 MHz
VCXO
PLL
10 MHz A
10 MHz B
10 MHz
To
Modems
10 MHz
Ext
Front
Panel
Outdoor
Equipment
Remote
Port
BUC / LNB
Fault Input
BUC / LNB
Fault Input
SPDT
SPDT
Tx
Attenuator
Internal FSK
UPC Interface
Figure 1-2. L-Band Multi-Modem Module Block Diagram (Redundancy)
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Introduction MN/LCS4.IOM
1.3 FEATURES
Standard FAST, or Hardware Phase Description
Combiner, Splitter
Hardware 1 Single or dual AC PS for unit or BUC (options)
Standard 1 L-Band Splitting/Combining
Standard 1 Flash of all programmable items via Remote RS-232 port
Standard 1 10 MHz External Reference input
Standard 1 Multiple fans and monitoring
Standard 1 BUC FSK control via modem (pass-though)
Standard 1 FSK driver/receiver hardware on RF card.
Standard 1 High temperature Alarm/Internal temperature report.
Standard 1 Front panel LED/Switch Control and Monitoring.
1:1 Switching Capability 1 Hardware support developed in Phase 1.
Standard 1 BUC/LNB switching
Standard 1 10 MHz sourcing to modems
Note: Separate definition of the ODU/BUC and LNB switches and interconnecting cables are
required for this unit to operate.
1.4 OPTIONAL ITEMS
Option Unit Power Supply ODU/BUC Power Supply Description
0 1 each, Non-redundant AC N/A Standard
1 2 each, Redundant AC N/A Optional
2 2 each, Redundant AC 2 each, 24 VDC 100W Redundant AC Optional
3 2 each, Redundant AC 2 each, 48 VDC 150W Redundant AC Optional
The following optional items are needed for this unit to function as a system.
Connector/Cable Assemblies L-Band IF Cable (Optional)
Outdoor LNB and BUC switch control (Optional)
Modem/Modulator Interconnect
Host (Optional)
ODU/BUC RF Switch Assembly and
Mounting Kits
Ku-Band (Optional)
C-Band (Optional)
Ka-Band (Future) (Optional)
LNB RF Switch Assembly and
Mounting Kits
Ku-Band (Optional)
C-Band (Optional)
Ka-Band (Optional)
PC to FSK BUC Cable For charging address of BUC.
1–4
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Introduction MN/LCS4.IOM
1.5 EXTERNAL BUC/LNB FAULT INPUT
Use of this connector is optional. This connector permits fault inputs from ODU/BUC or
LNB that have fault contacts for fault indication. Normally, this connector is used in
applications where the ODU/BUC power supply or LNB power supply is external to the
LCS-4 to permit a means of indicating a fault to the LCS-4 so that ODU/BUC or LNB
switchover still occurs.
The external fault inputs are enabled in one of two ways:
1. By grounding the BUC Input Enable and /or the LNB Input Enable.
2. Activating the DIP-switches that control the BUC Input Enabled and/or LNB
Input Enable.
J21, 9-pin D Female
Pin #
Signal Name
Signal
Direction
Description
1
2
8
BUCA_FLT
BUCB_FLT_BUF
BUC_FLT_EN
I
I
I
External BUC A Fault. (Grounded is OK)
External BUC B Fault. (Grounded is OK)
External BUC Fault Input Enable – with
GND
6
7
3
LNBB_FLT
LNBB_FLT_BUF
LNB_FLT_EN
I
I
I
External LNB A Fault (Grounded is OK)
External LNB B Fault (Grounded is OK)
External LNB Fault Input Enable – with
GND
4,5,9 GND GND Ground
1–5
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Introduction MN/LCS4.IOM
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