Comtech EF Data RC-1170 User manual

RC-1170/1270
Redundancy Switch Controllers
Installation and Operation Manual
Part Number MN-RC-1170/1270
Revision 0
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.

RC-1170/1270 Redundancy Switch Controllers
Revision 0
MN-RC-1170/1270
Copyright © 2021 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 Sept 2021 Initial Release.

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Table of Contents TOC-1 MN-RC-1170/1270
TABLE OF CONTENTS
PREFACE ......................................................................................................................................................I
About this Manual........................................................................................................................................i
Conventions and References......................................................................................................................i
Patents and Trademarks............................................................................................................................ i
Warnings, Cautions, Notes, and References.............................................................................................ii
Examples of Multi-Hazard Notices.............................................................................................................ii
Recommended Standard Designations ....................................................................................................iii
Safety and Compliance..............................................................................................................................iii
Electrical Safety and Compliance .............................................................................................................iii
Class I Pluggable Equipment Type A-Protective Earthing........................................................................iii
Galvanic Isolator Use................................................................................................................................iii
Restricted Access Location.......................................................................................................................iv
Electrical Installation .................................................................................................................................iv
Operating Environment .............................................................................................................................iv
European Union Radio Equipment and Telecommunications Terminal Equipment (R&TTE) Directive
(1999/5/EC) and EN 301 489-1................................................................................................................. v
European Union Electromagnetic Compatibility (EMC) Directive (2004/108/EC) ................................ v
European Union Low Voltage Directive (LVD) (2014/35/EC)................................................................vi
European Union RoHS Directive (2011/65/EU)....................................................................................vi
European Union Radio Equipment Directive (2014/53/EC)..................................................................vi
CE Mark vi
Product Support........................................................................................................................................vii
Comtech EF Data Headquarters..............................................................................................................vii
Warranty Policy.........................................................................................................................................vii
Limitations of Warranty.............................................................................................................................vii
Exclusive Remedies................................................................................................................................viii
CHAPTER 1. INTRODUCTION........................................................................................................... 1–1
1.1 Overview ......................................................................................................................................1–2
1.2 Specifications..............................................................................................................................1–5
1.2.1 Front Panel Controls.................................................................................................................1–5
1.2.2 Rear Panel Controls..................................................................................................................1–5
1.2.3 Indicators ..................................................................................................................................1–6
CHAPTER 2. INSTALLATION AND CONNECTORS.........................................................................2–1
2.1 Unpack and Inspect the Shipment ............................................................................................2–1
2.2 Rack-Mount Installation..............................................................................................................2–2
2.3 Connectors ..................................................................................................................................2–3
Power Connection.....................................................................................................................2–3
2.3.1.1 DC Filter Input Module (RC-1170 Only) ........................................................................2–4
J1, Control and Bias..................................................................................................................2–5
J3, EIA 232/485.........................................................................................................................2–7
J4, ‘10/100 ETHERNET’ Management Utility Port....................................................................2–8
Bias Select Switch ....................................................................................................................2–9
Current Cal Switch....................................................................................................................2–9

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CHAPTER 3. FRONT PANEL OPERATION.......................................................................................3–1
3.1 Overview ......................................................................................................................................3–1
LEDs .........................................................................................................................................3–2
Keypad......................................................................................................................................3–3
Vacuum Fluorescent Display (VFD)..........................................................................................3–3
3.1.3.1 Screen Saver.................................................................................................................3–3
3.2 Front Panel Menus......................................................................................................................3–4
Select: Menu.............................................................................................................................3–4
3.2.1.1 Select: Config Menu......................................................................................................3–5
3.2.1.1.1 Select: Config: Remote Control Menu.......................................................................3–5
3.2.1.1.2 Select: Config: Unit Menu..........................................................................................3–5
3.2.1.1.3 Select: Config: Redundancy Menu............................................................................3–7
3.2.1.1.4 Select: Config Mask Menu.........................................................................................3–7
3.2.1.2 Select: Monitor Menu ....................................................................................................3–8
3.2.1.2.1 Select: Monitor: Unit 1/2/3 .........................................................................................3–8
3.2.1.3 Select: Status Menu......................................................................................................3–8
3.2.1.3.1 Select: Status: Faults Menu.......................................................................................3–8
3.2.1.3.2 Select: Status: Event Log Menu ................................................................................3–9
3.2.1.3.3 Select: Status: Temperature ......................................................................................3–9
3.2.1.3.4 Select: Status: Voltage...............................................................................................3–9
3.2.1.4 Select: Utility Menu......................................................................................................3–10
3.2.1.4.1 Select: Utility: Date/Time..........................................................................................3–10
3.2.1.4.2 Select: Utility: Display ..............................................................................................3–10
3.2.1.4.3 Select: Utility: Firmware (Images)............................................................................3–10
3.3 Modes of Operation ..................................................................................................................3–12
RC-1170 (Future Feature).......................................................................................................3–12
RC-1270..................................................................................................................................3–12
3.3.2.1 Single and Dual Mode (Future)...................................................................................3–12
3.3.2.2 1:1 Configuration Mode...............................................................................................3–12
3.3.2.3 Triple Single Mode (Future).........................................................................................3–12
3.3.2.4 1:2 Redundant Mode...................................................................................................3–13
3.4 Calibration..................................................................................................................................3–14
Calibration Requirement.........................................................................................................3–14
Calibration Failure...................................................................................................................3–14
3.5 Internal Adjustments and Switches ........................................................................................3–14
Power Supply Voltage.............................................................................................................3–14
CHAPTER 4. FIRMWARE UPDATES................................................................................................. 4–1
4.1 Overview ......................................................................................................................................4–1
4.1.1 Important Considerations..........................................................................................................4–1
4.1.2 Firmware Update Procedure Summary....................................................................................4–1
4.1.3 About Firmware Numbers, File Versions, and Formats............................................................4–3
4.2 Download and Extract the Firmware Update Files ..................................................................4–3
CHAPTER 5. ETHERNET INTERFACE OPERATION.......................................................................5–1
5.1 Overview ......................................................................................................................................5–1
5.1.1 Prerequisites.............................................................................................................................5–1
5.2 SNMP Interface............................................................................................................................5–2

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5.2.1 Management Information Base (MIB) Files..............................................................................5–2
5.2.1.1 CEFD Root MIB File......................................................................................................5–2
5.2.1.2 RC-1170/1270 Redundancy Switch Controller MIB File ...............................................5–2
5.2.1.3 RC-1170/1270 Redundancy Switch Controller Traps MIB File.....................................5–2
5.2.2 SNMP Community Strings........................................................................................................5–3
5.2.3 SNMP Traps..............................................................................................................................5–3
5.3 Telnet Interface............................................................................................................................5–8
5.3.1 Telnet Remote Control Operation via Tera Term.......................................................................5–8
5.3.1.1 Configure Tera Term for Telnet Remote Control Operation...........................................5–9
5.4 HTTP (Web Server) Interface....................................................................................................5–10
5.4.1 Enable the HTTP Interface .....................................................................................................5–10
5.4.2 HTTP Interface User Login..................................................................................................... 5–11
5.4.3 HTTP Interface Features ........................................................................................................5–13
5.4.3.1 Menu Tree...................................................................................................................5–13
5.4.4 HTTPS Web Navigation..........................................................................................................5–13
5.4.4.1 Page Navigation..........................................................................................................5–13
5.4.4.2 Page Sections.............................................................................................................5–13
5.4.4.3 Action Buttons.............................................................................................................5–14
5.4.4.4 Drop-down Lists ..........................................................................................................5–14
5.4.4.5 Text or Data Entry........................................................................................................5–14
5.5 HTTP Interface Pages ...............................................................................................................5–15
5.5.1 Home Pages ...........................................................................................................................5–15
5.5.1.1 Home | Home ..............................................................................................................5–15
5.5.1.2 Home | Contact ...........................................................................................................5–16
5.5.2 Admin (Administration) Pages................................................................................................5–17
5.5.2.1 Admin | Access............................................................................................................5–17
5.5.2.2 Admin | Time ...............................................................................................................5–19
5.5.2.3 Admin | SNMP.............................................................................................................5–20
5.5.2.4 Admin | Upgrade .........................................................................................................5–21
5.5.3 Config Pages ..........................................................................................................................5–22
5.5.3.1 Config | Unit.................................................................................................................5–22
5.5.3.2 Configuration | Redundancy........................................................................................5–23
5.5.3.3 Configuration | Mask ...................................................................................................5–24
5.5.3.4 Config | Utility ..............................................................................................................5–25
5.5.4 Status Pages...........................................................................................................................5–26
5.5.4.1 Status | Summary........................................................................................................5–26
5.5.4.2 Status | Status.............................................................................................................5–27
5.5.4.4 Status | Events ............................................................................................................5–28
APPENDIX A. REDUNDANCY DRAWINGS........................................................................................ A-1

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LIST OF FIGURES
Figure 1-1. RC-1170 (1:1) .........................................................................................................................1–1
Figure 1-2. RC-1270 (1:2).........................................................................................................................1–1
Figure 1-3. Indoor Controller/Outdoor 1:2 LNA Switch System................................................................1–3
Figure 1-4. Indoor Controller/Outdoor 1:1 LNA Switch System................................................................1–3
Figure 1-5. Indoor Controller/Outdoor 1:2 LNB Switch System................................................................1–4
Figure 1-6. Indoor Controller/Outdoor 1:1 LNB Switch System................................................................1–4
Figure 2-1. Redundancy Switch Controller Package Content ..................................................................2–2
Figure 2-3. RC-1170/1270 Rear Panel Connectors..................................................................................2–3
Figure 2-4. DC Input Filter Module with User Supplied Power Harness...................................................2–4
Figure 2-5. Waveguide Switch Wiring 1:1 Configuration ..........................................................................2–6
Figure 2-6. Waveguide Switch Wiring 1:2 Configuration, RC-1270 Only .................................................2–6
Figure 2-7. RJ-45 Connector Example ..................................................................................................2–8
Figure 3-1. RC-1170 Front Panel..............................................................................................................3–1
Figure 3-2. RC-1270 Front Panel..............................................................................................................3–1
Figure 4-1. Upgrade Webpage Example ..................................................................................................4–2
Figure 5-1. Telnet Interface Example – Windows Command-line.............................................................5–8
Figure 5-2. Telnet Interface Example – Tera Term....................................................................................5–9
Figure 5-3. Configure Tera Term ...............................................................................................................5–9
Figure 5-4. Open Windows Command-line.............................................................................................5–10
Figure 5-5. Telnet Login and Remote Command Execution................................................................... 5–11
Figure 5-6. RC-1170/1270 Redundancy Switch Controller HTTP Interface ‘Splash’ Page Example .....5–12
Figure 5-7. RC-1170/1270 Redundancy Switch Controller HTTP Interface Menu Tree.........................5–13
Figure 5-8. RC-1170/1270 Redundancy Switch Controller ‘Home | Home’ Page (50 W Unit Example
Shown)............................................................................................................................................5–15
Figure 5-9. ‘Home | Contact’ Page..........................................................................................................5–16
Figure 5-10. ‘Admin | Access’ Page........................................................................................................5–17
Figure 5-11. ‘Admin | Time’ Page............................................................................................................5–19
Figure 5-12. ‘Admin | SNMP’ Page .........................................................................................................5–20
Figure 5-13. ‘Admin | Upgrade’ Page......................................................................................................5–21
Figure 5-15. ‘Config | Unit’ Page.............................................................................................................5–22
Figure 5-16. ‘Config | Redundancy’ Page...............................................................................................5–23
Figure 5-17. ‘Configuration | Mask’ Page................................................................................................5–24
Figure 5-18. ‘Configuration | Utility’ Page................................................................................................5–25
Figure 5-19. ‘Status | Summary’ Page....................................................................................................5–26
Figure 5-20. ‘Status | Status’ Page .........................................................................................................5–27
Figure 5-22. ‘Status | Events’ Page.........................................................................................................5–28
Figure A-1. C-Band LNA 1:1 Redundant System Assembly ..................................................................... A-1
Figure A-2. C-Band LNA 1:1 Redundant System (Exploded View) .......................................................... A-2
Figure A-3. C-Band LNB 1:1 Redundant System Assembly..................................................................... A-3
Figure A-4. C-Band LNB 1:1 Redundant System (Exploded View).......................................................... A-4
Figure A-5. Ku-Band LNA 1:1 Redundant System Assembly ................................................................... A-5
Figure A-6. Ku-Band LNA 1:1 Redundant System (Exploded View)......................................................... A-6
Figure A-7. Ku-Band LNB 1:1 Redundant System Assembly ................................................................... A-7
Figure A-8. Ku-Band LNB 1:1 Redundant System (Exploded View) ........................................................ A-8
Figure A-9. C-Band LNA 1:2 Redundant System Assembly ..................................................................... A-9
Figure A-10. C-Band LNA 1:2 Redundant System (Exploded View) ...................................................... A-10

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Figure A-11. C-Band LNB 1:2 Redundant System Assembly ..................................................................A-11
Figure A-12. C-Band LNB 1:2 Redundant System (Exploded View) ...................................................... A-12
Figure A-13. Ku-Band LNA 1:2 Redundant System Assembly ............................................................... A-13
Figure A-14. Ku-Band LNA 1:2 Redundant System (Exploded View)..................................................... A-14
Figure A-15. Ku-Band LNB 1:2 Redundant System Assembly............................................................... A-15
Figure A-16. Ku-Band LNB 1:2 Redundant System (Exploded View) .................................................... A-16
LIST OF TABLES
Table 2-1. DC Input Filter Module Pinouts ................................................................................................2–4
Table 2-2. ‘J1’ Controller LNA/LNB Output Connector..............................................................................2–5
Table 2-3. ‘J3’ 2-Wire EIA-485 Interface Connector Pinout.................................................................2–7
Table 2-4. ‘J3’ 4-Wire EIA-485 Interface Connector Pinout.................................................................2–7
Table 2-5. ‘J3’ EIA-232 Interface Connector Pinout .............................................................................2–7
Table 2-6. ‘J4 Unit Comm’ 10/100 Ethernet M&C Interface Connector Pinout.........................................2–8
Table 2-7. Controller to Unit Ethernet Connection (optional).............................................................2–9
Table 3-1. Front Panel Features ...............................................................................................................3–2
Table 3-2. Select Menu Description ..........................................................................................................3–4
Table 3-3. Select: Config Menu Description..............................................................................................3–5
Table 3-4. Select: Config: Remote Menu Description...............................................................................3–5
Table 3-5. Select: Config: Unit Menu Description .....................................................................................3–5
Table 3-7. Select: Config: Unit: Common: Current Window Menu Description.........................................3–6
Table 3-8. Select: Config: Unit: Unit 1/2/3 Window Screen.......................................................................3–6
Table 3-9. Select: Config: Redundancy Menu...........................................................................................3–7
Table 3-10. Select: Config: Mask: Unit Menu............................................................................................3–7

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Acronym List
Acronym
Description / Definition
First Use Page
CEFD
Comtech EF Data
1-1
CID
Circuit Identification
5-23
EIA
Electronic IndustriesAssociation
Preface-ii
EMC
Electromagnetic Compatibility
Preface-v
ESD
Electrostatic Discharge
1-2
FCC
Federal Communications Commission
Preface-v
IP
Internet Protocol
4-1
IPA
IPAddress
5-9
LCD
Liquid Crystal Diode
3-3
LED
Light Emitting Diode
1-5
LNA
Low Noise Amplifier
1-2
LNB
Low-noise Block Down Converter
1-2
LRS
Local Remote Status
5-8
LVD
Low Voltage Directive
Preface-vi
M&C
Monitor and Control
5-1
MIB
Management Information Base
5-2
NIC
Network Interface Card
4-1
NMS
Network Management System
5-2
OID
Object Identifier
5-2
PC
Personal Computer
2-8
PCB
Printed Circuit Board
1-2
R&TTE
Radio Equipment and Telecommunications Terminal Equipment
Preface-v
RS
Recommended Standards
Preface-ii
SNMP
Simple Network Management Protocol
5-1
SNTP
Simple Network Timing Protocol
5-17
VFD
Vacuum Fluorescent Display
3-2

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Units of Measurement
Unit / Symbol
Definition
Ω
Ohm
A
Ampere
AC
Alternating Current
bps
bits per second
˚C
Celsius (degrees)
DC
Direct Current
Hz
Hertz
kHz
kiloHertz
dB
decibel
dBc
Decibels relative t 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
Pps
Packets per second
ųF
100 micro-farads
W
Watt
V
Volt

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BLANK PAGE

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Preface i MN-RC-1170/1270
PREFACE
About this Manual
This manual provides installation and operation information for Comtech EF Data (CEFD) RC-
1170/1270 Redundancy Switch Controllers.
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.

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Preface ii MN-RC-1170/1270
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

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Preface iii MN-RC-1170/1270
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 rear 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.
CAUTION
It is important that you review and understand the Safety and Compliance
information that follows.
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.
Class I Pluggable Equipment Type A-Protective Earthing
The cable distribution system/telecommunication network of this product relies on protective
earthing and the integrity of the protective earthing must be insured.
In Finland:
"Laite on liitettävä suojakoskettimilla varustettuun pistorasiaan."
In Norway:
“Apparatet må tilkoples jordet stikkontakt.”
In Sweden:
“Apparaten skall anslutas till jordat uttag.”
In Denmark:
"Apparatets stikprop skal tilsluttes en stikkontakt med jord, som giver forbindelse til stikproppens
jord."
Galvanic Isolator Use
In Norway:
“Utrustning som är kopplad till skyddsjord via jordat vägguttag och/eller via annan utrustning och
samtidigt är kopplad till kabel-TV nät kan i visa fall medfőra risk főr brand. Főr att undvika detta
skall vid anslutning av utrustningen till kabel-TV nät galvanisk isolator finnas mellan utrustningen
och kabel-TV nätet.”

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Preface iv MN-RC-1170/1270
Restricted Access Location
In Nordic Countries, equipotential bonding should be applied, using the permanently connected
ground stud, by a qualified service person.
Electrical Installation
CAUTION
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.
Operating Environment
CAUTION
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 2000 meters (6561.7 feet).
•Excessive dust
•Flammable gases
•Corrosive or explosive atmospheres

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Preface v MN-RC-1170/1270
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:
European Union Electromagnetic Compatibility (EMC) Directive
(2004/108/EC)
•Emissions: EN 55032 – Limits and Methods of Measurement of Radio Interference
Characteristics of Information Technology Equipment.
•Immunity: EN 55024 – 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 (FCC) Federal Code of Regulation FCC Part
15, Subpart B.

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CAUTION
Obey these instructions to make sure that the unit complies with the standards:
•Use coaxial cable that is of good quality for connections to the L-Band Type ‘N’ Tx
(transmit) and Type “F” Rx (receive) female connector.
•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.
•Operate the products with their covers on at all times.
European Union Low Voltage Directive (LVD) (2014/35/EC)
<HAR>
Type of power cord required for use in the European Community.
CAUTION: Double-pole/Neutral Fusing
ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung
International Symbols:
Alternating Current
Protective Earth
Fuse
Ground
European Union RoHS Directive (2011/65/EU)
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 2011/65/EU).
European Union Radio Equipment Directive (2014/53/EC)
In accordance with the European Union Radio Equipment Directive 2014/53/EC, 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.
!

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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.
All equipment returned for warranty repair must have a valid RMA number 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.

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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.

RC-1170/1270 Redundancy Switch Controllers
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Introduction 1–1 MN-RC-1170/1270
Chapter 1. INTRODUCTION
This chapter provides an overview and specifications for the Comtech EF Data (CEFD)
redundancy switch controllers:
•RC-1170 (1:1)
•RC-1270 (1:2)
Future Product
Figure 1-1. RC-1170 (1:1)
Figure 1-2. RC-1270 (1:2)

RC-1170/1270 Redundancy Switch Controllers
Revision 0
Introduction 1–2 MN-RC-1170/1270
1.1 Overview
This equipment contains parts and assemblies sensitive to damage by
Electrostatic Discharge (ESD). Use ESD precautionary procedures when
touching, removing, or inserting Printed Circuit Boards (PCBs).
A complete redundant system consists of:
•RC-1170 (future product) or RC-1270 Redundancy Switch Controllers
•Redundant amplifier plate with two or three Low Noise Amplifier (LNA)/Low Noise Block-
down Converter (LNB)s
•Interconnect cable up to 400 feet in length
The redundancy switch controller performs the following functions:
•Supplies selectable 13/18 V power to the LNA/LNBs.
•Measures LNA/LNB current.
•Performs calibration on LNA/LNB current.
•Signals a fault with abnormal current deviation.
•Switches LNA/LNB on a priority basis in auto mode.
•Controls waveguide and coaxial switch position.
•Provides a 9-pin EIA-485/-232 serial interface.
•Normal/maintenance switch online during servicing.