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.
Part Number
MN-CDM710GRevision 1
Subject:
Errata A
Comtech EF Data Documentation Update
Update ‘FLT’ serial remote control query in Appendix A. REMOTE
CONTROL
Original Manual Part
Number/Rev:
Errata Number/
PLM Document ID:
PLM CO Number:
Comments:
MN-CDM710G Rev 1
ER-CDM710G-EA1
C-0025029
The updated information will be incorporated into the next formal
revision of the manual.
Update the ‘FLT’ Serial Remote Control Query as highlighted on
pages 3 and 4 of this document – see Appendix A. REMOTE
CONTROL, pp. A-9 / A10, and A-35 / A36.
ER-CDM710G-EA1 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! PLM CO C-0025029 Page 1 of 4
0=No faults
1= +1.5V Power Supply Unit (Modulator Card)
2= FPGA Failed to Load (Modulator Card)
3= Symbol Rate PLL Clock
4= Tx Synthesizer Unlocked
5= Tx Digital Clock Manager Unlocked
6= I & Q Baseband Channels are Inactive
7= FPGA Temperature (Modulator Card)
8= Reserved
9= TX Clock Failure (Interface 1)
Description of Arguments
Response to
Command
FLT?
FLT*
Query
(Instruction
Code and
Qualifier)
FLT?
Response to Query
FLT=abcde
d= New faults since last checkNote: Each section has faults
listed in order of priority. For
each section, only the highest
priority fault is returned. There
maybe multiple faults for each
section, but only the highest fault
is returned.
ER-CDM710G-EA1 THIS DOCUMENT IS NOT SUBJECT TO REVISION/UPDATE! PLM CO C-0025029 Page 3 of 4
International Symbols ............................................................................................................................. xv
CE Mark .................................................................................................................................................... xv
Customer Support .................................................................................................................................... xix
Online Customer Support ...................................................................................................................... xix
3.3.3Hub-to-Hub with Standard Traffic using Switches ............................................................... 3–4
3.3.4Hub-to-Hub with Standard Traffic using Routers ................................................................. 3–6
3.3.5 H u b - t o - R e m o t e s w i t h S t a n d a r d T r a f f i c u s i n g R o u t e r s o r S w i t c h e s ................................................... 3–8
iv
CDM-710G High-Speed Satellite Modem Revision 1
Table of Contents MN-CDM710G
3.3.6Hub-to-Remotes, Split-path Traffic using Routers (Point-to-Multipoint) .......................... 3–10
3.3.7Hub-to-Remotes, Split-path Traffic using Switches (Point-to-Multipoint) .............................................. 3–12
6.3.1.8CONFIG: Aux ................................................................................................................................ 6–36
A.6.4Priority System ................................................................................................................... A–33
A.6.5Modem Global Configuration (MGC) Command .............................................................. A–44
A.6.5.1 MGC Format ................................................................................................................................. A–44
Figure 1 - 3 . D i m e n s i o n a l E n v e l o pe ............................................................................................................ 1–6
Figure 1-4. Front Panel View .................................................................................................................... 1–7
Figure 1-5. Rear Panel View (show n with opti onal G.703 and GigE Inte rfac es) ........................................ 1–8
Figure 2-1. Installation of Optional Rear-Mounting Support Brackets (KT/6228-2) .............................. 2–3
Figure 2-2. Installation of Optional Side-Railings (FP/SL0006) ............................................................. 2–4
Figure 3-1. Networking Loop with Switches ............................................................................................ 3–2
Figure 3-2. Networking Loop Example .................................................................................................... 3–4
Figure 3-3. Networking Loop Example (Simplified) ................................................................................ 3–4
Figure 3 - 4 . Hu b-to-Hub w i t h S t a ndard Traf f i c u s i n g R o u t e r s .................................................................... 3–6
Figure 3-5. Wired-thru for Hub-to-Hub with Standard Traffic using Routers .......................................... 3–7
Figure 3-6. Wired-around for Hub-to-Hub with Standard Traffic using Routers ..................................... 3–7
Figure 3-7. Hub-to-Remotes with Standard Traffic using Routers or Switches ....................................... 3–8
Fig u r e 3 -8. Wi r e d - t h r u f o r Hub-t o - R e m o t e s with S t a n d a r d T r a f f ic usi n g R o u t e r s o r Switc h e s ........................ 3–9
Figure 3-9. Wired-around for Hub-to-Remotes with Standard Traffic using Routers or Switches .................... 3–9
Figure 3-10. Point-to-Multipoint using Routers ..................................................................................... 3–10
Figure 3-11. Wired-thru for Point-to-Multipoint with Routers ............................................................... 3–11
Figure 3-12. Wired-around for Point-to-Multipoint with Routers .......................................................... 3–11
Figure 3-13. Point-to-Multipoint using Switches ................................................................................... 3–12
Figure 14-3. Flash Update via Internet ................................................................................................... 14–6
Figu r e 14-4. G i g E Inte rface Example: Bridging R emot e H o s t on Common LA N O v e r S a t e llite ................ 14–9
Figure 14-5. M&C Port Assignment Example: IP Address NOT on Common LAN ........................... 14–10
xii
PREFACE
About this Manual
This manual provides installation and operation information for the Comtech EF Data CDM-710G
High-Speed Satellite Modem. This is a technical document intended for earth station engineers,
technicians, and operators responsible for the operation and maintenance of the 70-140 MHz
CDM-710G and its L-Band counterpart, the CDM-710GL.
Reporting Comments or Suggestions Concerning this Manual
Comments and suggestions regarding the content and design of this manual will be appreciated.
To submit comments, please contact the Comtech EF Data Technical Publications Department:
TechnicalPublications@comtechefdata.com
Metric Conversion
Metric conversion information is located on the inside back cover of this manual. This information
is provided to assist the operator in cross-referencing non-metric to metric conversions.
Cautions and Warnings
WARNING indicates a potentially hazardous situation that, if not avoided, could
result in death or serious injury.
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.
IMPORTANT or NOTE Indicates information critical for proper equipment function.
Recommended Standard Designations
Recommended Standard (RS) Designations have been superseded by the new designation of the
Electronic Industries Association (EIA). References to the old designations are shown only when
depicting actual text displayed on the screen of the unit (RS-232, RS-485, etc.). All other references
in the manual will be shown with the EIA designations.
The user should make special note of the following information and instructions:
IMPORTANT
Electrical Safety
The CDM-710G High-Speed Satellite Modem has been shown to comply with safety standard EN
60950: Safety of Information Technology Equipment, including Electrical Business Machines.
The equipment is rated for operation over the range 100 to 240 VAC. It has a maximum power
consumption of 88 watts, and draws a maximum of 770 mA.
Fuses
FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
CAUTION
The CDM-710G is fitted with two fuses - one each for line and neutral connections. These are
contained within the body of the IEC power inlet connector, behind a small plastic flap.
THE CORRECT TYPE AND RATING.
• For 115 and 230 volt AC operation, use T2.00A, 20mm fuses.
• For 48 VDC operation, use T6.25A, 6.3x32mm fuses.
Environmental
The CDM-710G shall not be operated in an environment where the unit is exposed to extremes of
temperature outside the ambient range 0 to 50°C (32° to 122°F), precipitation, condensation, or
humid atmospheres above 95% RH, altitudes (unpressurized) greater than 2000 meters, excessive
dust or vibration, flammable gases, corrosive or explosive atmospheres.
Operation in vehicles or other transportable installations that are equipped to provide a stable
environment is permitted. If such vehicles do not provide a stable environment, safety of the
equipment to EN60950 may not be guaranteed.
Installation
The installation and connection to the line supply must be made in compliance to local or national
wiring codes and regulations.
The CDM-710G is designed for connection to a power system that has separate ground, line and
neutral conductors. The equipment is not designed for connection to power system that has no
direct connection to ground.
The CDM-710G is shipped with a line inlet cable suitable for use in the country of operation. If it
is necessary to replace this cable, ensure the replacement has an equivalent specification.
Examples of acceptable ratings for the cable include HAR, BASEC and HOXXX-X. Examples of
acceptable connector ratings include VDE, NF-USE, UL, CSA, OVE, CEBEC, NEMKO,
DEMKO, BS1636A, BSI, SETI, IMQ, KEMA-KEUR and SEV.
International Symbols
International Symbols
Symbol Definition Symbol Definition
~
Alternating Current
Fuse
Protective Earth
Chassis Ground
Telecommunications Terminal Equipment Directive
In accordance with the Telecommunications Terminal Equipment Directive 91/263/EEC, this
equipment should not be directly connected to the Public Telecommunications Network.
CE Mark
Comtech EF Data declares that the CDM-710G High-Speed Satellite Modem meets the necessary
requirements for the CE Mark.
RoHS Compliancy
This unit satisfies (with exemptions) the requirements specified in the European Union Directive on
the Restriction of Hazardous Substances, Directive 2002/95/EC, (EU RoHS).
EMC (Electromagnetic Compatibility)
In accordance with European Directive 89/336/EEC, the CDM-710G High-Speed Satellite Modem
has been shown, by independent testing, to comply with the following standards:
Emissions:EN 55022 Class B - Limits and methods of measurement of radio
interference characteristics of Information Technology Equipment.
(Also tested to FCC Part 15 Class B)
Immunity:EN 50082 Part 1 - Generic immunity standard, Part 1: Domestic,
commercial and light industrial environment.
Additionally, the CDM-710G has been shown to comply with the following standards:
EN 61000-3-2 Harmonic Currents Emission
EN 61000-3-3 Voltage Fluctuations and Flicker
EN 61000-4-2 ESD Immunity
EN 61000-4-4 EFT Burst Immunity
EN 61000-4-5 Surge Immunity
EN 61000-4-6 RF Conducted Immunity
EN 61000-4-8 Power frequency Magnetic Field Immunity
EN 61000-4-9 Pulse Magnetic Field Immunity
EN 61000-4-11 Voltage Dips, Interruptions, and Variations Immunity
EN 61000-4-13 Immunity to Harmonics
To ensure that the Modem continues to comply with these
IMPORTANT
standards, observe the following instructions:
• Connections to the transmit and receive IF ports (‘N’ type female connectors)
should be made using a good quality coaxial cable - for example, RG213/U.
• All 'D' type connectors attached to the rear panel must have back-shells that
provide continuous metallic shielding. Cable with a continuous outer shield
(either foil or braid, or both) must be used, and the shield must be bonded to the
back-shell.
• The equipment must be operated with its cover on at all times. If it becomes
necessary to remove the cover, the user should ensure that the cover is correctly
re-fitted before normal operation commences.
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.
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.
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.
The CDM-710G High-Speed Satellite Modem (Figure 1-1) provides transmission of data using
the same powerful DVB-S2 techniques developed for video delivery in Digital Video Broadcast
(DVB) applications. It operates over satellite links with programmable symbol / data rates up to
45 Msps. The CDM-710G is intended for transmission of non-MPEG2 data. Its companion
product, the CDM-710, supports MPEG2 formats with various data interfaces.
Figure 1-1. CDM-710G High-Speed Satellite Modem (L-Band version shown)
Various modulations and coding combinations compliant with DVB-S2 are provided. The
modulation types supported include DVB-S2 QPSK, 8PSK, 16APSK and 32APSK.
Chapter 1. INTRODUCTION
Note: DVB-S and DVB-DSNG are not supported.
Constant Coding and Modulation (CCM) operation with a single input stream is provided for
operation. The unit is available in modulator only, demodulator only, and modem configurations.
The operating frequency of the CDM-710G is available in the following versions:
CDM-710G (70/140 MHz)
CDM-710GL (L-Band)
The terrestrial data interfaces, as depicted in the block diagram shown in Figure 1-2, are field
removable to allow different interface types:
• CDI-10-1 Single G.703 E3/T3/STS1 Interface
• CDI-60 HSSI Interface
• CDI-70 1000 Base-T Ethernet (GigE) Interface
The CDM-710G is compact, being 1RU high x 18.65 inches deep, with low power consumption.
It has a front panel Vacuum Fluorescent Display (VFD) and keypad for local configuration and
1–1
52 to 88 MHz and 104 to 176 MHz in 100 Hz resolution
control, although it can be fully remote-controlled via its RS-485 bus or 10/100 Base-T Ethernet
Interface.
1.1.1 Standard and Optional Features
The CDM-710G operates in DVB-S2 (QPSK, 8PSK, 16APSK, and 32APSK) mode only. The
CDM-710G is operated from the front panel using the keypad and display or remote controlled
via an RS-232 / RS-485 2/4 Wire bus or 10/100 Base-T Ethernet port located on the base unit.
The CDM-710G is available for either 70/140 MHz or L-Band applications. The standard 70/140
MHz Tx-IF port has a BNC female con nector that is programmable for either with 50Ω or 75Ω
impedance operations. Spectral rolloffs of 20, 25, and 35% are available.
1.1.2 Applications
The CDM-710G’s bandwidth and power-efficient operation is ideal for:
• Transmission of non-transport stream data (referred to as Generic Data in DVB-S2)
• Business enterprise data distribution
• Broadband Interactive and Internet services
• Any networking application relying on
o Point-to-point transmission
o Point-to-multipoint transmission
o Arbitrary topology
With a Gigabit Ethernet (GigE) data interface and either a 70/140 MHz (CDM-710G) or L-Band
(CDM-710GL) IF, the CDM-710G is equipped with the
by users. This is ideal for data transmission formats that take advantage of the Ethernet packets
for digital one-way, two-way and any network applications. The HSSI interface enables IP or
other data formats via a serial interface, and telecom applications are supported with the G.703
interface.
DVB-S2 offers new opportunities for data transmission applications. With
a broad range of modulation and coding formats, it permits the user to
tailor a link for the available bandwidth and power to optimize link
performance. Whether a link is point-to-point or point-to-multipoint, there is a format available to
suit each application.
1
configuration most frequently requested
1
The DVB-S2 logo is a trademark of the DVB Digital Video Broadcasting Project (1991 to 1996).
A block diagram of the CDM-710G is shown in Figure 1-2.
CDM-710G
Figure 1-2. CDM-710G Block Diagram
The CDM-710G is constructed as a 1RU-high rack-mounting chassis, which can be freestanding if
desired. Rack handles at the front facilitate removal from and placement into a rack.
The CDM-710G performs several key functions:
• It accepts incoming data from the terrestrial interface and converts it into appropriate
clock and data signals.
• The modulator operates on the data to frame and encode it for transmission.
• Encoded information is mapped for modulation.
• A modulated carrier is transmitted from the IF interface for use by uplink equipment for
delivery to the satellite.
• A carrier received from the satellite link is acquired and demodulated to recover symbols
and timing.
• Error correction and deframing are performed.
• User data is delivered to the to the data interface.
Transmit (Tx) data is delivered to the data interface where it is converted to clock and data
signals for further processing. Depending upon the type of interface, clock and data are provided
or in other cases the clock is embedded in the data and clock recovery is performed to generate
clock and data signals.
A First-In–First-Out (FIFO) follows the terrestrial interface to facilitate delivery of the data to the
framing card. Data is passed to the Forward Error Correction (FEC) Encoder where the data is
framed and encoded in accordance with only DVB-S2 formats.
After encoding, the data is passed to the modulator where the I and Q signals are mapped to
generate the appropriate constellation (QPSK, 8PSK, 16APSK, and 32APSK) and filtered to
provide the desired spectral rolloff.
Finally, a carrier is generated by a frequency synthesizer in conjunction with the I and Q signals
to produce a frequency range, as follows:
CDM-710G (70/140 MHz)
CDM-710GL (L-Band)
52 to 88 MHz and 104 to 176 MHz IF output signal at the
connector on the CDM-710G.
950 to 1950 MHz output signal at the Frequency connector on
the CDM-710GL.
An Rx carrier from the satellite is received by the demodulator and reverses the process
performed by the modulator. The demodulator has an FEC decoder that corrects errors incurred
during transmission to improve the integrity of the data delivered to the data interface. A
synthesizer in the demodulator is programmed to select the desired carrier from the transponder.
Physically, the CDM-710G is comprised of several main card assemblies:
• The Data Interface card is a plug-in module that is readily installed or removed at the rear
of the unit.
Note: Power must be turned off to remove or install the data interfaces. Any attempt to
remove or install a data face without first turning off the power to the unit will result in
damage to the data interface.
• The Framer Card receives signals from the data interface card and routes signals to the
FEC Encoder and Modulator. The microcontroller for the unit also resides on the Framer
Card and is the embedded controller for the entire unit. The microcontrollers handles all
of the monitor and control for unit including the front panel keypad and display, the RS232 and RS-485 2Wire / 4Wire remote port and the 10/100 Ethernet port. Interface with
the other the modules in the CDM-710G is provided by the framer assembly.
• The FEC Encoder and Decoder cards are plug-in modules that reside on the Framer card.
They generate the encoded streams used by the modulator card.
• Depending on the ordered configuration, a modulator and/or demodulator card may be
installed.
1–4
Loading...
+ 216 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.