Radyne DM240XR User manual

DM240XR
High-Speed
Digital Modulator
Installation and Operation Manual
TM120
Revision 1.1
Radyne Inc. •3138 E. Elwood St. •Phoenix, AZ 85034 •[phone] •Fax: [phone] •www.radn.com

DM240XR High-Speed Digital Modulator Warranty Policy
TM120 – Rev. 1.1 iii
Warranty Policy WP
Radyne Inc. (Seller) warrants the items manufactured and sold by Radyne Inc. to be free of defects in
material and workmanship for a period of two (2) years from date of shipment Radyne Inc.’s obligation under
its warranty is limited in accordance with the periods of time and all other conditions stated in all provisions
of this warranty.
This warranty applies only to defects in material and workmanship in products manufactured by Radyne Inc.
Radyne Inc. makes no warranty whatsoever concerning products or accessories not of its manufacture.
Repair, or at the option of Radyne Inc., replacement of the Radyne Inc. products or defective parts therein
shall be the sole and exclusive remedy for all valid warranty claims.
Warranty Period
The applicable warranty period shall commence on the date of shipment from a Radyne Inc. facility to the
original purchaser and extend for the stated period following the date of shipment. Upon beginning of the
applicable Radyne Inc. warranty period, all customers’ remedies shall be governed by the terms stated or
referenced in this warranty. In-warranty repaired or replacement products or parts are warranted only for the
remaining unexpired portion of the original warranty period applicable to the repaired or replaced products or
parts. Repair or replacement of products or parts under warranty does not extend the original warranty
period.
Warranty Coverage Limitations
The following are expressly not covered under warranty:
1. Any loss, damage and/or malfunction relating in any way to shipping, storage, accident, abuse,
alteration, misuse, neglect, failure to use products under normal operating conditions, failure to use
products according to any operating instructions provided by Radyne Inc., lack of routine care and
maintenance as indicated in any operating maintenance instructions, or failure to use or take any
proper precautions under the circumstances.
2. Products, items, parts, accessories, subassemblies, or components which are expendable in
normal use or are of limited life, such as but not limited to, bulbs, fuses, lamps, glassware, etc.
Radyne Inc. reserves the right to revise the foregoing list of what is covered under this warranty.
Warranty Replacement and Adjustment
Radyne Inc. will not make warranty adjustments for failures of products or parts, which occur after the
specified maximum adjustment period. Unless otherwise agreed, failure shall be deemed to have occurred
no more than seven (7) working days before the first date on which Radyne Inc. receives a notice of failure.
Under no circumstances shall any warranty exceed the period stated above unless expressly agreed to in
writing by Radyne Inc.
Liability Limitations
This warranty is expressly in lieu of and excludes all other express and implied warranties, Including but not
limited to warranties of merchantability and of fitness for particular purpose, use, or applications, and all
other obligations or liabilities on the part of Radyne Inc., unless such other warranties, obligations, or
liabilities are expressly agreed to in writing by Radyne Inc.
All obligations of Radyne Inc. under this warranty shall cease in the event its products or parts thereof have
been subjected to accident, abuse, alteration, misuse or neglect, or which have not been operated and
maintained in accordance with proper operating instructions.

Warranty Policy DM240XR High-Speed Digital Modulator
iv TM120 – Rev. 1.1
In no event shall Radyne Inc. be liable for Incidental, consequential, special or resulting loss or damage of
any kind howsoever caused. Radyne Inc.’s liability for damages shall not exceed the payment, if any,
received by Radyne Inc. for the unit or product or service furnished or to be furnished, as the case may be,
which is the subject of claim or dispute.
Statements made by any person, including representatives of Radyne Inc., which are inconsistent or in
conflict with the terms of this warranty, shall not be binding upon Radyne Inc. unless reduced to writing and
approved by an officer of Radyne Inc.
Warranty Repair Return Procedure
Before a warranty repair can be accomplished, a Repair Authorization must be received. It is at this time
that Radyne Inc. will authorize the product or part to be returned to the Radyne Inc. facility or if field repair
will be accomplished. The Repair Authorization may be requested in writing or by calling:
Radyne Inc.
3138 E. Elwood St.
Phoenix, Arizona 85034 (USA)
ATTN: Customer Support
Phone: [phone]
Fax: [phone]
Any product returned to Radyne Inc. for examination must be sent prepaid via the means of transportation
indicated as acceptable to Radyne Inc. Return Authorization Number must be clearly marked on the
shipping label. Returned products or parts should be carefully packaged in the original container, if possible,
and unless otherwise indicated, shipped to the above address.
Non-Warranty Repair
When a product is returned for any reason, Customer and its shipping agency shall be responsible for all
damage resulting from improper packing and handling, and for loss in transit, not withstanding any defect or
nonconformity in the product. By returning a product, the owner grants Radyne Inc. permission to open and
disassemble the product as required for evaluation. In all cases, Radyne Inc. has sole responsibility for
determining the cause and nature of failure, and Radyne Inc.’s determination with regard thereto shall be
final.

DM240XR High-Speed Digital Modulator Preface
TM120 – Rev. 1.1 v
Preface P
This manual provides installation and operation information for the Radyne DM240XR High-
Speed Digital Modulator. This is a technical document intended for use by engineers,
technicians, and operators responsible for the operation and maintenance of the DM240XR.
Conventions
Whenever the information within this manual instructs the operator to press a pushbutton switch
or keypad key on the Front Panel, the pushbutton or key label will be shown enclosed in “less
than” (<) and “greater than” (>) brackets. For example, the Reset Alarms Pushbutton will be
shown as <RESET ALARMS>, while a command that calls for the entry of a ‘7’ followed by
‘ENTER’ Key will be represented as <7,ENTER>.
Cautions and Warnings
A caution icon 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 warning icon indicates a potentially hazardous situation that if not avoided, could result in death
or serious injury.
A note icon identifies information for the proper operation of your equipment, including helpful
hints, shortcuts, or important reminders.

Preface DM240XR High-Speed Digital Modulator
vi TM120 – Rev. 1.1
Trademarks
Product names mentioned in this manual may be trademarks or registered trademarks of their
respective companies and are hereby acknowledged.
Copyright
©2006, Radyne Inc. This manual is proprietary to Radyne Inc. and is intended for the exclusive
use of Radyne Inc.’s customers. No part of this document may in whole or in part, be copied,
reproduced, distributed, translated or reduced to any electronic or magnetic storage medium
without the express written consent of a duly authorized officer of Radyne Inc.
Disclaimer
This manual has been thoroughly reviewed for accuracy. All statements, technical information,
and recommendations contained herein 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. Radyne Inc. assumes no responsibility for use of any
circuitry other than the circuitry employed in Radyne Inc. systems and equipment. Furthermore,
since Radyne Inc. is constantly improving its products, reserves the right to make changes in the
specifications of products, or in this manual at any time without notice and without obligation to
notify any person of such changes.
Record of Revisions
Revision
Level Date Reason for Change
1.0 6-30-06 New Release
1.1 8-23-06 Add New Features to DVB-S2
Comments or Suggestions Concerning this Manual
Comments or suggestions regarding the content and design of this manual are appreciated. To
submit comments, please contact the Radyne Inc. Customer Service Department.

DM240XR High-Speed Digital Modulator Table of Contents
TM120 – Rev. 1.1 vii
Table of Contents ToC
Section 1 - Introduction.............................................................................................1-1
1.0 Description.........................................................................................................1-1
Section 2 - Installation...............................................................................................2-1
2.0 Installation Requirements...................................................................................2-1
2.1 Unpacking..........................................................................................................2-2
2.2 Removal and Assembly......................................................................................2-2
2.3 Mounting Considerations....................................................................................2-2
2.4 Modulator Checkout...........................................................................................2-2
2.4.1 Initial Power-Up...............................................................................................2-3
Section 3 - Theory of Operation................................................................................3-1
3.0 Theory of Operation...........................................................................................3-1
3.1 DVB-S Operation ...............................................................................................3-1
3.2 DVB-S2-BS-NBC Operation...............................................................................3-2
Section 4 - User Interfaces ........................................................................................4-1
4.0 User Interfaces...................................................................................................4-1
4.1 Front Panel User Interface.................................................................................4-1
4.1.1 Front Panel LCD Display.................................................................................4-2
4.1.2 Front Panel LED Indicators .............................................................................4-2
4.1.3 Front Panel Keypad.........................................................................................4-2
4.1.4 Parameter Setup.............................................................................................4-2
4.2 Front Panel Control Screen Menus ....................................................................4-5
4.2.1 Main Menus ....................................................................................................4-5
4.2.2 Modulator Menu Options and Parameters.......................................................4-6
4.2.3 Interface Menu Options and Parameters.........................................................4-7
4.2.3.1 Plug-In Interface Card (PIIC)........................................................................4-7
4.2.3.2 Ethernet Interface (J1)...................................................................................4-9
4.2.4 RF Switch Menu Options and Parameters.....................................................4-15

Table of Contents DM240XR High-Speed Digital Modulator
viii TM120 – Rev. 1.1
4.2.5 Monitor Menu Options and Parameters.........................................................4-16
4.2.6 Alarms Menu Options and Parameters..........................................................4-16
4.2.7 System Menu Options and Parameters.........................................................4-17
4.2.8 Test Menu Options and Parameters..............................................................4-21
4.3 Remote Port User Interface..............................................................................4-22
4.3.1 Protocol Structure .........................................................................................4-22
4.3.2 Protocol Wrapper..........................................................................................4-22
4.3.3 Frame Description and Bus Handshaking .....................................................4-24
4.3.4 Global Response Operational Codes............................................................4-25
4.3.5 Collision Avoidance.......................................................................................4-26
4.3.6 Software Compatibility...................................................................................4-27
4.3.7 RLLP Summary.............................................................................................4-28
4.4 Ethernet Port User Interface.............................................................................4-28
4.5 Simple Network Management Protocol (SNMP)...............................................4-28
4.6 The Management Information Base (MIB)........................................................4-29
4.7 Terminal Port User Interface............................................................................4-31
Section 5 - Rear Panel Interfaces..............................................................................5-1
5.0 DM240XR Connections......................................................................................5-1
5.1 AC Power...........................................................................................................5-3
5.2 Compact Flash Interface (J5).............................................................................5-3
5.2.1 Feature Upgrade.............................................................................................5-3
5.2.2 Firmware Update.............................................................................................5-4
5.2.3 Custom Configuration......................................................................................5-4
5.3 Ethernet Interface (J6)........................................................................................5-4
5.4 External Reference (Input).................................................................................5-4
5.5 Remote Port (I/O)...............................................................................................5-5
5.6 Terminal Port (I/O) .............................................................................................5-5
5.7 Alarm Port..........................................................................................................5-5
5.8 IF Output Port (J9 & J10) ...................................................................................5-6
5.8.1 Output Monitor Port (J9)..................................................................................5-6
5.9 RF Switch Control (J2).......................................................................................5-6
5.10 Built in ASI/Advanced ASI Interface (J7)...........................................................5-7
5.11 Plug-In Interface Cards (PIICs) .........................................................................5-7
5.11.1 ASI PIIC.........................................................................................................5-8

DM240XR High-Speed Digital Modulator Table of Contents
TM120 – Rev. 1.1 ix
5.11.1.1 ASI (Asynchronous Serial Interface)............................................................5-8
5.11.1.2 AASI (Advanced Asynchronous Serial Interface).........................................5-8
5.11.2 ASI Monitor....................................................................................................5-8
5.11.3 Parallel RS-422 Interface...............................................................................5-8
5.11.3.1 M2P (Parallel, RS-422)................................................................................5-8
5.11.3.2 DVB (Parallel, RS-422)................................................................................5-9
5.11.4 Parallel LVDS Interface................................................................................5-10
5.11.5 HSSI Interface..............................................................................................5-10
5.11.6 Ethernet 100/1000 Base-T Interface.............................................................5-11
5.11.5 G.703 Interface (Contact factory for availability)...........................................5-11
Section 6 - Maintenance and Troubleshooting ........................................................6-1
6.0 Periodic Maintenance.........................................................................................6-1
Section 7 - Technical Specifications.........................................................................7-1
7.0 Introduction........................................................................................................7-1
7.1 IF Specification...................................................................................................7-1
7.2 Baseband Specification......................................................................................7-1
7.3 Interface Types Available (PIIC).........................................................................7-3
7.4 Monitor and Control............................................................................................7-4
7.5 Environmental....................................................................................................7-4
7.6 Physical .............................................................................................................7-4
7.7 Options ...............................................................................................................7-4
7.8 DVB-S Series Configuration...............................................................................7-4
7.8.1 DVB-S2 Series Configuration..........................................................................7-5
7.9 Data Rates (DVB-S)............................................................................................7-5
7.9.1 Data Rates (DVB-S2)......................................................................................7-7
Appendix A - Remote Operations ............................................................................A-1
A.0 DM240XR Opcode Command Set...................................................................A-1
A.1 Modulator Command Set..................................................................................A-1
A.2 Detailed Command Descriptions.......................................................................A-3
Appendix B - SNMP MIB ...........................................................................................B-1
Glossary.....................................................................................................................G-1

Table of Contents DM240XR High-Speed Digital Modulator
x TM120 – Rev. 1.1

DM240XR High-Speed Digital Modulator Introduction
TM120 – Rev. 1.1 1-1
Introduction 1
This chapter provides an overview of the DM240XR High-Speed Digital Modulator. The
DM240XR will be referred to in this manual as “the DM240XR”, “the modulator”, or “the unit”.
1.0 Description
The New Standard in Digital Modulator Performance
Radyne’s DM240XR family of High-Speed Modulators is the ideal choice to meet the exacting
standards of High Data-Rate Video, Internet and Fiber Restoral Satellite Applications. The
DM240XR offers various options that comply to the international standards, supporting both DVB-
S and DVB-S2 specifications. With a variety of frequency options and Plug-In Data Interfaces
(PIIC), it provides greater flexibility for changing and upgrading the unit the required application.
The DVB-S Network specification complies with both EN300-421 and EN301-210 ETSI
specifications. The DM240XR supports FEC rates of BPSK, QPSK, 8PSK and 16QAM
applications with symbol rates up to 68 Msps
The DVB-S2 Network specification complies with the next generation DVB open standard
supported by ETSI EN302-307. At the core of this standard is a powerful Bose-Chaudhuri-
Hocquenghem BCH encoder and concatenated Low-Density Parity Check (LDPC).
The powerful new onboard Monitor and Control (M&C) processor has the unique capability to
download firmware and enhance features from a field-changeable Flash Card. Offering
unprecedented flexibility, this feature represents a new level of Radyne outstanding Customer
Support. Additionally, features are added to the installed equipment base with extreme ease,
allowing the equipment to expand with changes in service while lowering initial installation
budgets.
The Modulator offers a frequency-agile IF Output from 50 to 90, 100 to 180 MHz (70/140), or 950
to 2050 MHz (L-Band) in 100 Hz steps. Variable data rates from 1 Mbps to 238 Mbps can be set
in 1 bps steps.
Additional features include the choice of remotely interfacing through one of three onboard
connections: 10 Base-T/100 Base-T Ethernet, RS-485, or RS-232. The familiar Radyne Front
Panel (Figure 1-1) offers push-button control of all features and a backlit LCD display. Menus are
specifically designed for ease of use and quick online operation as well as changes in all
modulator configurations.
An optional 1:1 Redundancy Control Switch (RCS11) is available to provide the DM240XR with
superior system reliability.
Figure 1-1. DM240XR

Introduction DM240XR High-Speed Digital Modulator
1-2 TM120 – Rev. 1.1

DM240XR High-Speed Digital Modulator Installation
TM120 – Rev. 1.1 2-1
Installation 2
This section provides unpacking and installation instructions, and a description of external
connections and backward alarm information.
2.0 Installation Requirements
The DM240 can be installed within any standard 19-inch equipment cabinet or rack, and requires
1 RU mounting space (1.75 inches) vertically and 17 inches of depth. Including cabling, a
minimum of 20-inches of rack depth is required. The rear panel of the DM240XR is designed to
have power enter from the left and IF cabling enter from the right when viewed from the rear of
the unit. Data and control cabling can enter from either side although they are closer to the
center. The unit can be placed on a table or suitable surface if required.
There are no user-serviceable parts or configuration settings located
inside the DM240 Chassis. There is a potential shock hazard internally at
the power supply module. DO NOT open the DM240 Chassis under any
circumstances.
Before initially applying power to the unit, it is a good idea to disconnect
the transmit output from the operating ground station equipment. This is
especially true if the current DM240XR configuration settings are
unknown, where incorrect settings could disrupt existing
communications traffic.

Installation DM240XR High-Speed Digital Modulator
2-2 TM120 – Rev. 1.1
2.1 Unpacking
The DM240XR Modulator was carefully packaged to avoid damage and should arrive complete
with the following items for proper installation:
DM240XR Unit.
Compact Flash Card. Must be installed.
Power Cord, 6-foot with applicable AC connector.
Installation and Operation Manual.
2.2 Removal and Assembly
Carefully unpack the unit and ensure that all of the above items are in the carton. If the Prime AC
power available at the installation site requires a different power cord/AC connector, then
arrangements to receive the proper device will be necessary before proceeding with the
installation.
The DM240XR modulator is shipped fully assembled. It does not require removal of the covers
for any purpose in installation. The only replaceable assembly in the unit is the data interface and
is not intended to be accomplished in the field. Should the power cable AC connector be of the
wrong type for the installation, either the cable or the power connector end should be replaced.
The power supply itself is designed for universal application using from 100 to 240 VAC, 50 to
60 Hz, < 40 W.
2.3 Mounting Considerations
When mounted in an equipment rack, adequate ventilation must be provided. The ambient
temperature in the rack should be between 10°and 35°C, and held constant for best equipment
operation. The air available to the rack should be clean and relatively dry. The DM240XR units
may be stacked one on top of the other up to a maximum of 10 consecutive units before providing
a
1 RU space for airflow.
Do not mount the DM240XR in an unprotected outdoor location where there is direct contact with
rain, snow, wind or sun. The DM240XR is designed for indoor applications only.
The only tools required for rack mounting the DM240XR is a set of four rack mounting screws and
an appropriate screwdriver. Rack mount brackets are an integral part of the cast front bezel of
the unit and are not removable.
Shielded cables with the shield terminated to the conductive backshells are required in order to
meet EMC directives. Cables with insulation flammability ratings of 94 VO or better are required
in order to meet low voltage directives.
2.4 Modulator Checkout
The following descriptions assume that the DM240XR is installed in a suitable location with prime
AC power and supporting equipment available.

DM240XR High-Speed Digital Modulator Installation
TM120 – Rev. 1.1 2-3
2.4.1 Initial Power-Up
Before initial power up of the DM240XR, it is a good idea to disconnect
the transmit output from the operating ground station equipment. This is
especially true if the current modulator configuration settings are
unknown, where incorrect setting could disrupt existing communications
traffic. New units from the factory are normally shipped in a default
configuration which includes setting the transmit carrier off.
Turn the unit ‘ON’ by placing the rear panel switch (above the power entry connector) to the ‘ON’
position. Upon initial and subsequent power-ups, the DM240XR microprocessor will test itself
and several of its components before beginning its main Monitor/Control program. These power-
up diagnostics show no results if successful. If a failure is detected, the Fault LED is illuminated.
The initial field checkout of the DM240XR can be accomplished from the front panel, Terminal
Port, Remote Port, or Ethernet Port.

Installation DM240XR High-Speed Digital Modulator
2-4 TM120 – Rev. 1.1

DM240XR High-Speed Digital Modulator Theory of Operation
TM120 – Rev. 1.1 3-1
Theory of Operation 3
3.0 Theory of Operation
The advanced hardware/software architecture of the DM240XR allows a single piece of hardware
to be configured for a variety of different applications. Several of these hardware/software
platforms are listed in the next sections. Custom applications are available.
The basic operation of each platform is similar. A digital terrestrial interface supplies the
modulator with a data stream. The data stream is synchronized if the incoming stream is framed.
The data is scrambled, and FEC is added. The data is then convolutionally encoded, punctured,
then constellation mapped. The resulting I&Q Symbols are digitally filtered. The data is then
converted into an analog waveform and is vector modulated onto an RF Carrier produced from
the Transmit IF Synthesizer Circuitry.
Since the baseband processing is completely digital, many different variations of signal
processing can be performed. Therefore, the DM240XR is one of the most flexible digital
modulators available today.
3.1 DVB-S Operation
The DVB-S version of the DM240XR complies with both EN300-421 and EN301-210 ETSI
Specifications.
A block diagram of the signal flow is shown in Figure 3-1 below.
Figure 3-1. Functional Block Diagram

Theory of Operation DM240XR High-Speed Digital Modulator
3-2 TM120 – Rev. 1.1
3.2 DVB-S2-BS-NBC Operation
The DVB-S2-BS-NBC version of the DM240XR complies with the ETSI EN 302 307 V1.1.1
(2004-01) specification for non-backward compatible broadcast services.
A block diagram of the signal flow is shown in Figure 3-2 below.
Terrestrial
Interface
PRBS
Generator
Terrestrial
Buffer CRC-8 Encoder Slicer
BCH
Encoder LDPC Encoder Bit Interleaver
BB
Filter
PL
Framing
DVB
Sync
PLL
IQ
Modulator
Tx Clock
Symbol Clock
Stream
Adaptation
Mapping IF Out
Tx Data
SCT
SCTE
DDS
Figure 3-2. Functional Block Diagram

DM240XR High-Speed Digital Modulator Theory of Operation
TM120 – Rev. 1.1 3-3

DM240XR High-Speed Digital Modulator User Interfaces
TM120 – Rev. 1.1 4-1
User Interfaces 4
4.0 User Interfaces
There are four user interfaces available for the DM240XR family of products. These are:
a. Front Panel
b. Remote Port
c. Ethernet Port
d. Terminal
4.1 Front Panel User Interface
The front panel of the DM240XR allows for complete control and monitor of all DM240XR
parameters and functions via a keypad, LCD display and status LEDs.
The front panel layout is shown in Figure 4−1, showing the location and labeling of the front
panel. The front panel is divided into three functional areas: the LCD display, the Keypad and the
LED Indicators, each described below in Table 4-1.
Figure 4-1. DM240XR Front Panel
Table 4-1.
Item Number Description Function
1 LCD Front Panel Display Displays DM240XR Operating
parameters and Configuration data.
2 Cursor Control Arrows Controls the up, down, right and left
motion of the cursor in the LCD Display
window (see Figure x-x).
3 Numeric Keypad Allows entry of numeric data and Clear
and Enter function keys.
4 Operational Function LEDs See Table 4-2 for a description of these
LED Indicators.