OM20
Universal Outdoor Modem
Installation and Operation Manual
IMPORTANT NOTE: The information contained in this document supersedes all previously
published information regarding this product. This manual is subject to change without prior notice.
Part Number MN-OM20 Revision 5
OM20
Universal Outdoor Modem
Installation and Operation Manual
Part Number MN-OM20
Revision 5
October 27, 2009
Copyright © 2009 Comtech EF Data. Al l rights reserv ed. Printed in the USA.
Comtech EF Data, 21 14 Wes t 7th St re et , Tem pe, Ariz on a 85 28 1 USA, 480.333.220 0, FAX: 480.333.2161
This page is intentionally blank.
Table of Contents
TABLE OF CONTENTS ............................................................................................................................................. III
CHAPTER 1. INTRODUCTION ........................................................................................................................ 1–1
1.0 OVERVIEW ................................................................................................................................................... 1–1
1.1 OM20 CONFIGURATIONS ............................................................................................................................... 1–2
1.1.1 Features/Options Installed at Time of Order ....................................................................................... 1–3
1.1.2 Software Feature Upgrades ................................................................................................................. 1–3
1.1.3 Future Hardware Options .................................................................................................................... 1–3
CHAPTER 2. INSTALLATION .......................................................................................................................... 2–1
2.1 INSTALLATION REQUIREMENTS ......................................................................................................................... 2–1
2.2 UNPACKING ................................................................................................................................................. 2–2
2.2.1 Outdoor Modem (OM20) ..................................................................................................................... 2–2
2.3 REMOVAL AND ASSEMBLY ............................................................................................................................... 2–3
2.4 MOUNTING AND WIRING CONSIDERATIONS ....................................................................................................... 2–4
2.4.1 OM20 Mounting Bracket Instructions.................................................................................................. 2–5
2.4.2 OM20 General Antenna Post Mount Diagram..................................................................................... 2–6
2.4.3 OM20 General Antenna Post Mount Diagram..................................................................................... 2–7
2.4.4 OM20 Antenna Feed Arm Mount Diagram .......................................................................................... 2–8
2.4.5 OM20 with External TWTA Amplifier ................................................................................................... 2–9
2.4.6 OM20 Additional Interface Diagrams ................................................................................................ 2–10
CHAPTER 3. OM20 INITIAL CONFIGURATION ............................................................................................... 3–1
3.1 OM20 INITIAL CONFIGURATION CHECK ............................................................................................................ 3–1
3.2 INITIAL CONFIGURATION AND SETUP PROCESS .................................................................................................... 3–3
3.2.1 Initial Power-Up and Configuration Verification .................................................................................. 3–3
3.2.2 M&C Setup (IP Configuration & RS232 Interface) ................................................................................ 3–3
3.3 OM20 VERIFICATION TESTING ........................................................................................................................ 3–4
3.3.1 TX Output Verification Test .................................................................................................................. 3–4
3.3.2 RX Input Verification Test..................................................................................................................... 3–5
3.4 STORAGE AND RESHIPMENT ............................................................................................................................ 3–5
CHAPTER 4. OM20 THEORY OF OPERATION ................................................................................................. 4–1
4.1 OM20 HARDWARE ....................................................................................................................................... 4–1
4.1.1 OM20 L-Band Printed Circuit Card ....................................................................................................... 4–2
4.1.2 OM20 Baseband Processing Printed Circuit Card ................................................................................ 4–3
4.2 OM20 FUNCTIONAL BLOCK DIAGRAM .............................................................................................................. 4–4
4.2.1 Baseband Processing ........................................................................................................................... 4–4
4.2.2 Tx Baseband Processing ....................................................................................................................... 4–5
4.2.3 Rx Baseband Processing ....................................................................................................................... 4–5
4.3 MONITOR & CONTROL (M&C) SUBSYSTEM ....................................................................................................... 4–6
4.3.1 Terminal Port ....................................................................................................................................... 4–7
4.3.2 Modem Remote Communications (RLLP) ............................................................................................. 4–7
4.3.3 Ethernet M&C Port ............................................................................................................................... 4–7
4.3.4 Modem Monitor Status ........................................................................................................................ 4–8
4.4 ASYNC PORT / ES-ES COMMUNICATIONS .......................................................................................................... 4–8
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4.5 INTERNAL CLOCK ........................................................................................................................................... 4–8
4.6 LOOPBACK FEATURES (TERRESTRIAL & IF) .......................................................................................................... 4–8
4.7 CLOCKING OPTIONS ..................................................................................................................................... 4–12
4.7.1 TX Clock Options ................................................................................................................................ 4–12
4.7.1.1 SCTE: Serial Clock Transmit External ......................................................................................................... 4–13
4.7.1.2 SCT: Serial Clock Transmit ......................................................................................................................... 4–13
4.7.2 RX Buffer Clock Options ..................................................................................................................... 4–13
4.7.2.1 RX SAT Clock .............................................................................................................................................. 4–14
4.7.2.2 SCTE: Serial Clock Transmit External ......................................................................................................... 4–14
4.7.2.3 SCT: Serial Clock Transmit ......................................................................................................................... 4–14
4.7.2.4 EXT CLK/EXT BNC: ..................................................................................................................................... 4–14
4.7.2.5 EXT IDI: Insert Data In ............................................................................................................................... 4–14
4.7.3 EXT REF: External Reference, Optional............................................................................................... 4–15
4.8 RS422/V.35 INTERFACE J3 (STANDARD OPTION) ............................................................................................. 4–15
4.8.1 G.703 Interface (Optional) ................................................................................................................. 4–15
4.8.2 Ethernet Data Interface J4 (Optional) ................................................................................................ 4–15
4.9 REED-SOLOMON CODEC ............................................................................................................................... 4–16
4.9.1 Reed-Solomon Operation in the OM20 .............................................................................................. 4–16
4.9.2 Reed-Solomon Code Rate ................................................................................................................... 4–16
4.9.3 Interleaving ........................................................................................................................................ 4–16
4.10 DROP AND INSERT (D&I) .............................................................................................................................. 4–17
4.11 OM20 AUTOMATIC UPLINK POWER CONTROL (AUPC OPERATION) .................................................................... 4–18
4.12 ASYNCHRONOUS OVERHEAD OPERATION J3 (FRAMING/MULTIPLEXER CAPABILITY) ................................................. 4–18
4.13 STANDARD IBS MODE ................................................................................................................................. 4–19
4.14 ASYNCHRONOUS MULTIPLEXER MODE ........................................................................................................... 4–20
4.15 ESC BACKWARD ALARMS ............................................................................................................................. 4–21
4.15.1 To Disable the ESC Backward Alarms ............................................................................................ 4–22
4.16 SATELLITE CONTROL CHANNEL (SCC) .............................................................................................................. 4–22
4.16.1 SCC Framing Structure ................................................................................................................... 4–22
4.16.2 Aggregate Data Rate ..................................................................................................................... 4–23
4.16.3 Overhead Rate Comparison ........................................................................................................... 4–24
4.16.4 Actual Overhead Rate Calculation ................................................................................................. 4–24
4.16.5 SCC Overhead Channel Setup ........................................................................................................ 4–25
4.17 EDMAC SATELLITE FRAMING/DEFRAMING MODE ............................................................................................ 4–27
4.18 LOCATING THE ID CODE OPERATIONAL PROCEDURE........................................................................................... 4–27
4.19 STRAP CODES ............................................................................................................................................. 4–27
CHAPTER 5. REAR PANEL INTERFACES .......................................................................................................... 5–1
5.1 OM20 EXTERNAL INTERFACE CONNECTIONS ...................................................................................................... 5–1
5.1.1 Power Input .......................................................................................................................................... 5–3
5.1.1.1 AC Power Input (J1) ..................................................................................................................................... 5–3
5.1.1.2 DC Power Input/Switch (Optional) .............................................................................................................. 5–3
5.1.2 Remote/Terminal/Fault Port (J2) ......................................................................................................... 5–3
5.1.3 EIA-530 Synchronous Data, ES-ES Asynchronous Overhead Data, and G.703 Balanced Data I/O Port
(J3) 5–5
5.1.4 ETHERNET DATA/M&C (J4) .................................................................................................................. 5–6
5.1.5 Ground Lug (J6) .................................................................................................................................... 5–7
5.1.6 RX L-Band IF (J7) ................................................................................................................................... 5–7
5.1.7 TX L-Band IF (J8) ................................................................................................................................... 5–7
5.1.8 Compact Flash Card (J9) ....................................................................................................................... 5–7
5.1.9 SD (J10) (Optional) ............................................................................................................................... 5–8
5.1.10 RD (J11) (Optional) .......................................................................................................................... 5–8
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5.1.11 LED Indicators .................................................................................................................................. 5–8
5.1.12 G.703 Balanced – Connections are available via the J3 connector. Refer to Table 5.4a. ............... 5–8
5.1.13 EXT Reference J12 ............................................................................................................................ 5–8
CHAPTER 6. WEB BROWSER/REMOTE PROTOCOL ........................................................................................ 6–1
6.1 WEB BROWSER USER INTERFACE ..................................................................................................................... 6–1
6.2 CONFIGURING YOUR PC ................................................................................................................................. 6–1
6.2.1 Appearance .......................................................................................................................................... 6–2
6.2.2 Navigation ........................................................................................................................................... 6–3
6.2.3 LED Indicators ...................................................................................................................................... 6–4
6.3 GUI SCREEN MENUS ..................................................................................................................................... 6–5
6.3.1 Introduction Menu ............................................................................................................................... 6–6
6.3.1.1 Login Screen ................................................................................................................................................ 6–7
6.3.2 Password Setup .................................................................................................................................... 6–8
6.3.3 IP and Application Administration ..................................................................................................... 6–10
6.3.3.1 Modem Addressing ................................................................................................................................... 6–10
6.3.3.2 Configuring Applications ........................................................................................................................... 6–12
Table 6-5. SNMP Parameters........................................................................................................................................ 6–13
6.3.4 Monitor and Control Menu ................................................................................................................ 6–16
6.3.4.1 Transmit Menu .......................................................................................................................................... 6–16
6.3.4.2 Receive Menu ........................................................................................................................................... 6–29
6.3.4.3 Interface Menu ......................................................................................................................................... 6–37
6.3.4.4 Monitor Menu ........................................................................................................................................... 6–44
6.3.4.5 Alarms Menu ............................................................................................................................................. 6–49
6.3.4.6 System Menu ............................................................................................................................................ 6–56
6.3.4.7 Test Menu ................................................................................................................................................. 6–59
6.4 CONFIGURING THE OM20 TO USE THE ETHERNET DATA INTERFACE (OPTIONAL) ..................................................... 6–60
6.4.1 Ethernet Flow Control ........................................................................................................................ 6–60
6.4.1.1 Half-Duplex Flow Control .......................................................................................................................... 6–60
6.4.1.2 Full-Duplex Flow Control ........................................................................................................................... 6–61
6.4.2 Packet Statistics ................................................................................................................................. 6–61
6.5 TERMINAL MODE CONTROL .......................................................................................................................... 6–62
6.5.1 Modem Terminal Mode Control ......................................................................................................... 6–63
6.6 MODEM REMOTE COMMUNICATIONS ............................................................................................................. 6–63
6.6.1 Host Computer Remote Communications .......................................................................................... 6–63
CHAPTER 7. MAINTENANCE AND TROUBLESHOOTING ................................................................................. 7–1
7.1 PERIODIC MAINTENANCE ................................................................................................................................ 7–1
7.1.1 Clock Adjustment ................................................................................................................................. 7–1
7.2 TROUBLESHOOTING ....................................................................................................................................... 7–1
7.2.1 Alarm Faults ......................................................................................................................................... 7–2
7.2.1.1 Major Tx Alarms .......................................................................................................................................... 7–2
7.2.1.2 Major Rx Alarms .......................................................................................................................................... 7–3
7.2.1.3 Minor Tx Alarms .......................................................................................................................................... 7–3
7.2.1.4 Minor Rx Alarms.......................................................................................................................................... 7–4
7.2.1.5 Drop and Insert Alarms ............................................................................................................................... 7–5
7.2.1.6 Common Major Alarms ............................................................................................................................... 7–5
7.2.2 Alarm Masks ........................................................................................................................................ 7–5
7.2.2.1 Active Alarms .............................................................................................................................................. 7–6
7.2.2.1.1 Major Alarms .......................................................................................................................................... 7–6
7.2.2.1.2 Minor Alarms.......................................................................................................................................... 7–6
7.2.2.1.3 Common Equipment Faults .................................................................................................................... 7–6
7.2.2.2 Latched Alarms ........................................................................................................................................... 7–6
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CHAPTER 8. TECHNICAL SPECIFICATIONS ..................................................................................................... 8–1
8.1 DATA RATES ................................................................................................................................................. 8–1
8.2 MODULATOR ............................................................................................................................................... 8–1
8.3 DEMODULATOR ............................................................................................................................................ 8–2
8.4 PLESIOCHRONOUS BUFFER .............................................................................................................................. 8–2
8.5 MONITOR AND CONTROL................................................................................................................................ 8–2
8.6 OM20 DROP AND INSERT (OPTIONAL) ............................................................................................................. 8–2
8.7 TERRESTRIAL INTERFACES ................................................................................................................................ 8–3
8.8 IDR/ESC INTERFACE (OPTIONAL) .................................................................................................................... 8–3
8.9 ETHERNET DATA INTERFACE ............................................................................................................................ 8–3
8.10 ENVIRONMENTAL .......................................................................................................................................... 8–3
8.11 PHYSICAL ..................................................................................................................................................... 8–3
8.12 OM20 DATA RATE LIMITS.............................................................................................................................. 8–3
8.12.1 Non-DVB .......................................................................................................................................... 8–3
8.12.2 DVB .................................................................................................................................................. 8–5
8.13 OM20 / BER SPECIFICATIONS ........................................................................................................................ 8–7
8.13.1 BER Performance (Viterbi) ............................................................................................................... 8–7
8.13.2 BER Performance (Sequential) ......................................................................................................... 8–8
8.13.3 BER Performance (Viterbi with Reed-Solomon) ............................................................................... 8–9
8.13.4 BER Performance (8PSK Trellis) ..................................................................................................... 8–10
8.13.5 BER Performance (16QAM Viterbi) ................................................................................................ 8–11
8.13.6 BER Performance (16QAM Viterbi with Reed-Solomon) ................................................................ 8–12
8.13.7 BER Performance ((O)QPSK Turbo) ................................................................................................ 8–13
8.13.8 BER Performance (8PSK Turbo) ..................................................................................................... 8–14
8.13.9 BER Performance (16QAM Turbo) ................................................................................................. 8–15
8.13.10 Input Level ..................................................................................................................................... 8–19
APPENDIX A. PRODUCT OPTIONS ................................................................................................................... A–1
A.1 HARDWARE OPTIONS .................................................................................................................................... A–1
A.1.1 G.703/IDR ESC Interface ..................................................................................................................... A–1
A.1.2 Turbo Card .......................................................................................................................................... A–1
A.1.3 Internal High Stability ......................................................................................................................... A–1
A.1.4 DC Input Prime Power ......................................................................................................................... A–1
A.1.5 Ethernet Data Interface ...................................................................................................................... A–1
A.1.6 Sequential Interface ............................................................................................................................ A–1
A.2 CUSTOMIZED OPTIONS .................................................................................................................................. A–2
APPENDIX B. SOFTWARE UPGRADE PROCEDURE ........................................................................................... B–1
B.1 TERMINAL SOFTWARE UPGRADE ..................................................................................................................... B–1
B.2 REQUIRED EQUIPMENT ................................................................................................................................. B–1
B.3 UPGRADE PROCEDURE .................................................................................................................................. B–1
B.4 DEMONSTRATION PROCEDURE ....................................................................................................................... B–3
B.5 CANCELING DEMONSTRATION MODE ............................................................................................................... B–4
B.6 WEB BROWSER SOFTWARE UPGRADE .............................................................................................................. B–5
B.7 MONITOR AND CONTROL............................................................................................................................... B–5
APPENDIX C. CARRIER CONTROL .................................................................................................................... C–1
C.1 STATES ........................................................................................................................................................C–1
C.2 CARRIER OFF ................................................................................................................................................C–1
C.3 CARRIER ON .................................................................................................................................................C–1
C.4 CARRIER AUTO .............................................................................................................................................C–2
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C.5 CARRIER VSAT ..............................................................................................................................................C–2
C.6 CARRIER RTS ...............................................................................................................................................C–2
APPENDIX D. QUICK START GUIDE ................................................................................................................. D–1
D.1 INTRODUCTION ............................................................................................................................................ D–1
D.2 REQUIRED ITEMS .......................................................................................................................................... D–1
D.3 WEB INTERFACE SETUP GUIDELINES ................................................................................................................ D–1
D.3.1 Preparing the OM-20 for Web Setup .................................................................................................. D–1
D.4 IP NETWORK CHANGE FROM THE INITIAL WEB SETUP ......................................................................................... D–4
D.4.1 Configuring the modem ...................................................................................................................... D–4
D.4.2 Configuring the Computer .................................................................................................................. D–5
D.5 WEB USERS SETUP AND CONFIGURATIONS CONTROLS OPTIONS ........................................................................... D–6
D.5.1 Change Authentication Password ....................................................................................................... D–8
D.5.2 Boot Mode Options (Reference only) .................................................................................................. D–8
APPENDIX E. DROP & INSERT (D&I) ............................................................................................................... E–1
E.1 DROP AND INSERT (D&I) ................................................................................................................................ E–1
E.2 DROP ONLY ................................................................................................................................................. E–2
E.3 INSERT ONLY ................................................................................................................................................ E–2
E.4 MODE SELECTION ......................................................................................................................................... E–3
E.4.1 PCM-30 ................................................................................................................................................ E–3
E.4.2 PCM-30C .............................................................................................................................................. E–3
E.4.3 PCM-31 ................................................................................................................................................ E–4
E.4.4 PCM-31C .............................................................................................................................................. E–4
E.4.5 T1-D4/T1-D4-S ..................................................................................................................................... E–4
E.4.6 T1-ESF/T1-ESF-S ................................................................................................................................... E–4
E.5 MULTIDESTINATIONAL SYSTEMS ....................................................................................................................... E–4
E.6 DROP AND INSERT MAPPING ........................................................................................................................... E–5
E.7 CONFIGURING THE OM20 FOR DROP AND INSERT ............................................................................................... E–7
E.7.1 Data Rate ............................................................................................................................................. E–7
E.7.2 Operational Network Specification ...................................................................................................... E–8
E.7.3 Terrestrial Framing - Drop Mode/Insert Mode .................................................................................... E–8
E.7.3.1 Insert Terrestrial Frame Source .................................................................................................................. E–9
E.7.4 D&I Sample Configurations and D&I Clock Setup Options ................................................................... E–9
E.8 D&I MAPS AND MAP EDITING ...................................................................................................................... E–12
APPENDIX F. EFFICIENT DROP & INSERT (D&I) .............................................................................................. F–1
F.1 INTRODUCTION ............................................................................................................................................. F–1
F.2 PREREQUISITE ............................................................................................................................................... F–1
F.3 EFFICIENT DROP & INSERT MODE .................................................................................................................... F–2
F.3.1 Calculating the Required Satellite Bandwidth...................................................................................... F–3
F.3.2 Calculating the Basic Efficient D&I Rate .............................................................................................. F–3
F.3.3 Calculating the Efficient D&I Rate with E1 Signaling ........................................................................... F–3
F.3.4 Calculating the Efficient D&I Rate with Enhanced Asynchronous Overhead ....................................... F–4
APPENDIX G. STRAP CODES ............................................................................................................................ G–1
G.1 STRAP CODES .............................................................................................................................................. G–1
G.2 SAMPLE APPLICATIONS .................................................................................................................................. G–5
G.2.1 Operational Case Examples ................................................................................................................ G–5
APPENDIX H. AUPC OPERATIONS ................................................................................................................... H–1
H.1 AUTOMATIC UPLINK POWER CONTROL (AUPC OPERATION) ................................................................................ H–1
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H.1.1 Radyne AUPC ...................................................................................................................................... H–1
H.1.2 EF AUPC............................................................................................................................................... H–2
H.1.3 Near Side AUPC ................................................................................................................................... H–2
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PREFACE
About this Manual
This manual describes th e installation and operation for the Radyne OM20. This is a technica l
document intended for earth station engineers, technicians, and operators responsible for the
operation and maintenance of the OM20.
Reporting Comments or Suggestions Concerning this Manual
Comments and suggesti ons regar ding the cont ent an d design of th is m anual are appreci ated. T o
submit comments, please contact the Comtech EF Data Technical Publications department:
TechnicalPublications@comtechefdata.com
Conventions and References
Related Documents
The following documents are referenced in this manual:
• EN300-421 and EN301-210 ETSI
• ETSI EN302-307
Metric Conversion
Metric conversi on inf orm atio n is loc ated o n the i nside b ac k cover of this m anu al. T his inf orm ation is
provided to assist the operator in cross-referencing non-Metric to Metric conversions.
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OM20 Universal Outdoor Modem Revision 5
IM P O RTA N T
CAUTION
CAUTION indicates a hazardous situation that, if not avoided, may result in
may also be used to indicate other
WARNING
n that, if not avoided,
Examples of
Preface MN-OM20
Cautions and Warnings
IMPORTANT or NOTE indicates a st atement associated with the task
being performed or information critical for proper equipment function.
minor or moderate injury. CAUTION
unsafe practices or risks of property damage.
WARNING indicates a potentially hazardous situatio
could result in death or serious injury.
Multi-Hazard Formats
Trademarks
Product names m entioned in this manual may be tradem arks or registered trademarks of their
respective companies and are hereb y acknowledged.
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!
NOTE
Preface MN-OM20
Safety Compliance
EN 60950
Applicable testing is rout inely performed as a condition of manuf acturing on all units to ensure
compliance with safet y requirem ents of EN609 50.T his equipm ent m eets the Safety of Inf orm ation
Technology Equipment spe c ific ation as def in ed in EN6 0950 .
Low Voltage Directive (LVD)
The following information is applicable for the European Low Voltage Directive (EN60950):
<HAR> Type of power cord required for use in the European Community.
CAUTION: Double-pole/Neutral Fusing
ACHTUNG: Zweipolige bzw. Neutralleiter-Sicherung
International Symbols:
Symbol Definition Symbol Definition
~
Alternating Current
For additional symbols, refer to Cautions and Warnings, listed
earlier in this Preface.
Fuse
Protective Earth /
Safety Ground
Chassis Ground
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Preface MN-OM20
Warranty Policy
Comtech EF Data products are warranted against defects in material and
workmanship for a period of two years 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. Repairs are warranted for the remainder of the original
two year warranty, or a 90 day extended warranty, whichever is longer.
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 eq ui pment 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 par ts.
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 ther eof where t he serial number
or the serial number of any of its parts has been altered, defaced, or removed.
The warranty does not cover damage or loss incurred in transportation of the
product.
The warranty does not cover replacement or repair necessitated by loss or
damage from any cause beyond the control of Comtech EF Data Corporation,
such as lightning or other natural and weather related events or wartime
environments.
The warranty does not cover any labor involved in the removal and or
reinstallation of warranted equipment or parts on site, or any labor required to
diagnose the necessity for repair or replacement.
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Preface MN-OM20
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.
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Preface MN-OM20
Customer Support
Contact the Comtech EF Data Customer Support Department for:
• Product support or training
• Reporting comments or suggestions concerning manuals
• Information on upgrading or returning a product
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
To return a Comtech EF Data product (in-warranty and out-of-warranty) for repair or replacement:
• Contact the Com tech EF Data Custom er Support De partment . Be prepared to supp ly
the Customer Support representative with the model number, serial number, and a
description of the problem.
• Request a Return Materi al Authorization (RMA) number f rom the Comtech EF Data
Customer Support representative.
• Pack th e prod uc t in its or i gi nal sh ipp in g c arton/ pac kaging to ensure that t he pr o du c t is
not damaged during shipping.
• Ship the product back to Comtech EF Data. (Shipping charges should be prepaid.)
Online Customer Support
An RMA number request can be requested electr onically by contacting the C ustomer Support
Department through the online support page at www.comtechefdata.com/support.asp:
• Click o n the “Ser vice” h yperlink, then re ad the “Ret urn Materia l Authori zation” se ction
for detailed instructions on our return proc ed ur es.
• Click on th e “RMA Request For m” hyperlink, then fil l out the form c ompletely before
sending.
• Send e-mail to the Customer Suppo rt Depart ment at service@comtechefdata.com.
For information regarding this product’s warranty policy, refer to the Warranty Policy, p. xxii.
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