Comtech EF Data LCS-4 Operating instructions

Brand: Comtech EF Data

Model: LCS-4

Category: Network switches

Type: Operating instructions

LCS

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

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:

[email protected]

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.

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

LCS-4 L-Band Combiner Switch Revision 1

Preface MN/LCS4.IOM

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]

vii

LCS-4 L-Band Combiner Switch Revision 1

Preface MN/LCS4.IOM

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.

viii

LCS-4 L-Band Combiner Switch Revision 1

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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.

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.

LCS-4 L-Band Combiner Switch Revision 1

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

LCS-4 L-Band Combiner Switch Revision 1

Introduction MN/LCS4.IOM

L-Band

DC Blk

L-Band

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 B

LNB PS A

LNB PS B

Unit PS A

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 B

LNB A

LNB B

L-Band

Modulators

4 x Type N

L-Band

Demodulators

4 x Type F

Prime

Power A

Prime

Power B

Diode

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

Modems

10 MHz

Ext

Front

Panel

Outdoor

Equipment

Remote

Port

BUC / LNB

Fault Input

BUC / LNB

Fault Input

SPDT

Attenuator

Internal FSK

UPC Interface

Figure 1-2. L-Band Multi-Modem Module Block Diagram (Redundancy)

1–3

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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

BUCA_FLT

BUCB_FLT_BUF

BUC_FLT_EN

External BUC A Fault. (Grounded is OK)

External BUC B Fault. (Grounded is OK)

External BUC Fault Input Enable – with

GND

LNBB_FLT

LNBB_FLT_BUF

LNB_FLT_EN

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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Comtech EF Data LCS-4 Operating instructions

Brand: Comtech EF Data

Model: LCS-4

Category: Network switches

Type: Operating instructions

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Comtech EF Data LCS-4 Operating instructions

Comtech EF Data LCS-4 Operating instructions

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