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CDM-800 Gateway Router

Revision 1

Ethernet-based Remote Product Management

MN-CDM800

5–26

5.4.4.3.5.1

Configuration | WAN | QoS

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Summary of Contents for CDM-800

Page 1: ...outer Installation and Operation Manual For Firmware Version 1 3 2 or Higher IMPORTANT NOTE The information contained in this document supersedes all previously published information regarding this pr...

Page 2: ......

Page 3: ...nted in the USA Comtech EF Data 2114 West 7th Street Tempe Arizona 85281 USA 480 333 2200 FAX 480 333 2161 CDM 800 Advanced VSAT Series Gateway Router Installation and Operation Manual For Firmware Ve...

Page 4: ...This page is intentionally blank...

Page 5: ...allation xi Operating Environment xi European Union Radio Equipment and Telecommunications Terminal Equipment R TTE Directive 1999 5 EC and EN 301 489 1 xi European Union Electromagnetic Compatibility...

Page 6: ...o a Rack Enclosure 2 2 2 2 1 Installing the Optional Rear Mounting Support Brackets Kit 2 4 CHAPTER 3 REAR PANEL CONNECTIONS 3 1 3 1 Cabling Connection Types 3 1 3 1 1 Coaxial Cable Connections 3 1 3...

Page 7: ...ing for the Firmware Download 4 2 4 3 Downloading and Extracting the Firmware Update 4 6 4 4 Performing the Ethernet FTP Upload Procedure 4 8 CHAPTER 5 ETHERNET BASED REMOTE PRODUCT MANAGEMENT 5 1 5 1...

Page 8: ...4 Status Pages 5 34 5 4 4 4 1 1 Status Statistics Traffic 5 34 5 4 4 4 1 2 Status Statistics Router 5 36 5 4 4 4 1 3 Status Statistics Compression 5 37 5 4 4 4 1 4 Status Statistics QoS 5 38 5 4 4 4...

Page 9: ...w 1 5 Figure 1 5 CDM 800 Rear Panel View 1 6 Figure 2 1 Unpacking and Inspecting the Shipment 2 1 Figure 2 2 Installation into a Rack Enclosure 2 3 Figure 2 3 Installation of Optional Rear Mounting Su...

Page 10: ...tion WAN QoS page continued 5 27 Figure 5 17 Status Statistics Traffic page 5 34 Figure 5 18 Status Statistics Router page 5 36 Figure 5 19 Status Statistics Compression page 5 37 Figure 5 20 Status S...

Page 11: ...tact the Comtech EF Data Technical Publications Department TechnicalPublications comtechefdata com Related Documents Comtech EF Data CDM 840 Remote Router Installation and Operation Manual Comtech EF...

Page 12: ...ulti Hazard Notices Recommended Standard Designations Recommended Standard RS Designations have been superseded by the new designation of the Electronic Industries Association EIA References to the ol...

Page 13: ...TO GROUND Sect 3 3 CDM 800 Ground and Power Connections Operating Environment DO NOT OPERATE THE UNIT IN ANY OF THESE EXTREME OPERATING CONDITIONS AMBIENT TEMPERATURES LESS THAN 0 C 32 F OR MORE THAN...

Page 14: ...n Federal Code of Regulation FCC Part 15 Subpart B TO ENSURE THAT THE UNIT COMPLIES WITH THESE STANDARDS OBEY THESE INSTRUCTIONS Use coaxial cable that is of good quality for connections to the L Band...

Page 15: ...n Directive on the Restriction of Hazardous Substances in Electrical and Electronic Equipment EU RoHS Directive 2002 95 EC European Union Telecommunications Terminal Equipment Directive 91 263 EEC In...

Page 16: ...ongly 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 s...

Page 17: ...ted 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 u...

Page 18: ...iness hours Monday through Friday 8 A M to 5 P M Mountain Standard Time MST For Contact CDM 800 Technical Support and Service Telephone 1 480 333 4357 Email cdmipsupport comtechefdata com Fax 1 480 33...

Page 19: ...Authorization hyperlink On the Comtech EF Data Support page http www comtechefdata com support asp Click Send RMA Request http www comtechefdata com rmaform asp Fill out the RMA form completely Click...

Page 20: ...CDM 800 Gateway Router Revision 1 Preface MN CDM800 xviii Notes...

Page 21: ...oducts Comtech s Advanced VSAT Series group of products Figure 1 2 are designed to support latency sensitive applications such as cellular backhaul over satellite Universal Service Obligation USO netw...

Page 22: ...y with the satellite o The data interface is a bidirectional path that connects the customer s equipment assumed to be the Data Terminal Equipment or DTE to the unit assumed to be the Data Communicati...

Page 23: ...Chapter 6 SERIAL BASED REMOTE PRODUCT MANAGEMENT Field update of the operating system firmware is possible through file upload via satellite or the Ethernet port Chapter 4 UPDATING FIRMWARE Field acti...

Page 24: ...way Router is constructed as a 1RU high rack mounting chassis Handles at the front facilitate removal from and placement into a rack The unit can be free standing if desired Sect 1 4 CDM 800 Product S...

Page 25: ...a the SNMP interface Off There are no Stored Events ONLINE Green The Unit is On Line and carrying traffic Off The Unit is Off Line standby forced by externally connected 1 1 or 1 N Redundancy System T...

Page 26: ...rear panel of the unit Figure 1 5 Figure 1 5 CDM 800 Rear Panel View 1 3 3 2 1 Rear Panel Standard Features The unit provides the following standard interfaces Data Interfaces 2X 10 100 1000 BaseT Gig...

Page 27: ...ation or the CRS 180 1 1 Redundancy Switch for 70 140 MHz operation M N device redundancy support is available with the separately purchased Vipersat Management System VMS The following Power Interfac...

Page 28: ...Tx Connectors Impedance Type N Female 50 BNC Female 62 Power Supply AC 100 240 VAC 47 Hz 63 Hz DC HW option 48V 36V to 60V DC Transmit Power 5 to 40 dBm 950 2150 MHz 5 to 25 dBm 50 180 MHz Supported P...

Page 29: ...bly CDM 800 chassis 1 4 3 Optional Assemblies CEFD Item No Description Where Installed PL 0000900 CDM 800 Base Chassis Assembly 48V DC KT 6228 2 Rear Mounting Support Bracket 4 Sides of CDM 800 chassi...

Page 30: ...CDM 800 Gateway Router Revision 1 Introduction MN CDM800 1 10 Notes...

Page 31: ...teway Router its Installation and Operation Manual and its power cord were packaged and shipped in a reusable cardboard carton containing protective foam spacing This equipment contains parts and asse...

Page 32: ...ded using the ground stud provided on the unit rear panel during installation configuration and operation PROPER AIR VENTILATION IS REQUIRED In a rack system where there is high heat discharge provide...

Page 33: ...ure Mount the CDM 800 in its assigned position in the rack enclosure Use as required A standard rack mounted shelf User supplied screws to secure the front panel to the rack enclosure threaded front m...

Page 34: ...h To install the CEFD Chassis Style kit Step Task 1 Use the 10 flat washers 10 split washers and 10 hex nuts to secure the 10 shoulder screws to the unit chassis through the rear right and left side m...

Page 35: ...0 32FLT Flat Washer 10 3 2 2 HW 10 32SPLIT Lock Washer 10 4 2 2 HW 10 32HEXNUT Hex Nut 10 5 4 4 HW 10 32x1 2RK Bolt 10 Rear Support Bracket 6 2 FP 6138 2 Bracket Rear Support 4 2 FP 6138 3 Bracket Rea...

Page 36: ...CDM 800 Gateway Router Revision 1 Installation MN CDM800 2 6 Notes...

Page 37: ...operational interface types may be available with this product 3 1 1 Coaxial Cable Connections Coupling Type Connector Type Plug Jack Bayonet Type BNC shown Threaded Type N shown Figure 3 1 Coaxial C...

Page 38: ...ection Instructions Bayonet Coupling Connections Use the plug slots to guide then slide the plug onto the jack posts Then turn the plug clockwise until the jack posts are fully seated within the plug...

Page 39: ...bminiature Connector Examples D Subminiature connectors are also called Type D or D Sub connectors The connector pair features multiple rows of pins male side coupled to mating sockets female side The...

Page 40: ...onnection cable and female socket e g the ODM R 840 Outdoor Remote Router CONSOLE REDUNDANCY port or the POWER port To install the male connector into the female connector 1 Engage the primary and sec...

Page 41: ...aseT Gigabit Ethernet Traffic Interface GE2 CLOCK EXTENSION IN BNC female G 703 Clock Extension Input 3 2 3 Utility TERM RJ 12 Female Terminal EIA 232 Interface FE Fast Ethernet RJ 45 female 10 100 Ba...

Page 42: ...ctor THERE MAY BE DC VOLTAGES PRESENT ON THE TYPE N TX IF CONNECTOR UP TO A MAXIMUM OF 48 VOLTS 3 2 1 2 70 140 Tx IF Connector Connector Type Name Description Direction Type N 50 Female L BAND Tx Tx I...

Page 43: ...s These interfaces operate at 10 100 1000 Mbps full duplex 10 100 Mbps half duplex auto negotiating The typical maximum Ethernet packet size is 1522 bytes including Ethernet headers and CRC 3 2 3 CLOC...

Page 44: ...e REDUNDANCY In Out This interface is used for connection to an optional CEFD CRS 170A 1 1 Redundancy Switch for L Band operation or the CRS 180 1 1 Redundancy Switch for 70 140 MHz operation M N devi...

Page 45: ...NOT CONNECT TO THIS PIN 2 EIA 232 TRANSMIT DATA OUT 7 RESERVED DO NOT CONNECT TO THIS PIN 3 EIA 232 RECEIVE DATA IN 8 RESERVED DO NOT CONNECT TO THIS PIN 4 RESERVED DO NOT CONNECT TO THIS PIN 9 RESER...

Page 46: ...nnection at all times It is therefore imperative that the unit is properly grounded using the ground stud provided on the unit rear panel during installation configuration and operation Figure 3 4 CDM...

Page 47: ...into the unit Then plug the AC power cord male end into the user supplied power source Finally switch the unit ON Feature Description 1 On Off Switch 2 Press fit Fuse Holder 3 IEC Three prong Connect...

Page 48: ...PROCEEDING The fuses are contained within a fuse holder that is press fit into the body of the IEC power module Figure 3 7 Replacing CDM 800 AC Fuses To replace the fuses First unseat the fuse holder...

Page 49: ...upplied and DC power leads to their respective terminals Number 18 AWG minimum wires are recommended Then connect the user supplied DC power leads to the power source Finally switch the unit ON Featur...

Page 50: ...n individual screw in receptacles located below the terminal blocks Figure 3 10 Figure 3 10 Replacing CDM 800 DC Fuses To replace the fuses First unscrew either fuse holder from its receptacle Then re...

Page 51: ...d from the Comtech EF Data Web site www comtechefdata com or from Comtech EF Data Customer Support during normal business hours via e mail or on CD by standard mail delivery The CDM 800 Firmware Updat...

Page 52: ...ct the PC to the CDM 800 A Use the 9 pin serial cable to connect the CDM 800 CONSOLE port to a serial port on the user PC B On the PC Open the terminal emulator program Refer to your terminal emulator...

Page 53: ...t to the PC On the PC Use a Web browser e g Internet Explorer to log in to the CDM 800 Web Server Interface and access the Admin Firmware page Then make note of the Slot 1 and Slot 2 firmware loads Se...

Page 54: ...unused name B Use Windows Explorer to create and rename the temporary folder Select File New Folder to create the temporary folder The new folder will be created in the active folder Right click the...

Page 55: ...pt icon from the Main Menu Next open a Command line window o For Windows 95 or Windows 98 Type command o For any Windows OS versions later than Windows 98 Type cmd or command o Alternately from Start...

Page 56: ...ecific model and optional hardware configurations The CDM 800 firmware download hyperlink appears as F0000430X_V where X denotes the revision letter and represents the firmware version e g V132 Versio...

Page 57: ...name and then follow the prompts provided by the user supplied utility program Extract at a minimum two files FW0000430x_CDM800 bin the Firmware Bulk image file where x denotes the revision letter and...

Page 58: ...e CDM 800 Web Server Interface The CDM 800 Management IP Address has been noted using the CDM 800 Serial Command Line Interface CLI and the firmware has been identified using either the CLI or the CDM...

Page 59: ...es for the transfer to occur Once the upgrade file is received the image is written to Flash memory and the unit transmits the message UPLOAD COMPLETE In the event you receive the Connection closed by...

Page 60: ...Go to either the Web Server Interface Admin Firmware page or the Utility Reboot page Click Reboot in the System Reboot section and OK when prompted and then wait while the CDM 800 reboots The CDM 800...

Page 61: ...ar panel CONSOLE port with a user supplied serial cable o The PC Ethernet port is connected to the CDM 800 rear panel FE 10 100 BaseT Ethernet port with a user supplied hub switch or direct Ethernet c...

Page 62: ...er to specify the unit Management IP Address Via use of a terminal emulator connected to the rear panel 9 pin serial CONSOLE port this address may be obtained from the CDM 800 Serial Interface upon po...

Page 63: ...MIB files are associated with the CDM 800 MIB File Name where x is revision letter Description ComtechEFData mib ComtechEFData Root MIB file ComtechEFData MIB file gives the root tree for ALL Comtech...

Page 64: ...nterface A user supplied Web browser allows the full monitoring and control M C of the CDM 800 from its Web Server Interface This embedded Web application is designed for and works best with Microsoft...

Page 65: ...s to indicate the depth of navigation needed to view the subject page Top Level Tab Primary Page Tab Nested Tab For example Status Statistics Traffic is interpreted to mean first click the top level S...

Page 66: ...5 4 2 5 Feature Selection Drop down menus provide access to multiple setting selections where available for a specific function Move the cursor to the drop down tab and then left click the tab The dro...

Page 67: ...and activated Blocks that are marked with denote pages that are functional only when a VIPERSAT MANAGEMENT SYSTEM VMS is installed and is recognized as operational The CDM 800 Web Server Interface fe...

Page 68: ...anagement System Redundancy Switches etc installed and configured for use with the CDM 800 Such operational restrictions will be noted in the subsections that follow through the end of this chapter 5...

Page 69: ...ed Remote Product Management MN CDM800 5 9 5 4 4 1 2 Home Contact Use this page to reference basic contact information needed to reach Comtech EF Data Sales and Customer Support via phone fax or Web e...

Page 70: ...to Logout or VMS tab to continue 5 4 4 2 1 Admin Access Use this page to assign the user names and passwords required to access the CDM 800 Web Server Interface Figure 5 3 Admin Access page User Acces...

Page 71: ...ESTINATION IP ADDRESS FEATURE IS A FUTURE OFFERING IT IS NON FUNCTIONAL AT THIS TIME Enter an SNMP Read Community string The SNMP Read Community string can be any combination of characters and a lengt...

Page 72: ...authorization codes that may be purchased from Comtech EF Data during normal business hours and then loaded into the unit using this page Figure 5 5 Admin FAST page FAST Configuration This read only...

Page 73: ...ST upgrade order is placed and confirmed the Comtech EF Data sales representative will provide a 20 digit FAST Access Code To perform the CDM 800 FAST option upgrade Step Task 1 Use the FAST Configura...

Page 74: ...ot 1 and Slot 2 Firmware Configuration Use the Boot From drop down menu to select Latest Slot 1 or Slot 2 The default selection is Latest in which the unit will automatically select the image that con...

Page 75: ...safeguard access to an already logged in unit Enter a value from 1 to 15 minutes into the Logout Time box to configure this feature Enter a value of 0 to disable this feature Click Submit to save the...

Page 76: ...Network ID designation defines to which network the Gateway Router belongs All devices in a common network will have the same network ID The network ID is used by the VMS to identify Vipersat units wi...

Page 77: ...t IP address assigned to all Gateway Routers in the Vipersat network that are managed by the VMS This address must match the VMS Transmit Multicast Address Typical for each item click Submit to save t...

Page 78: ...l FE 10 100 BaseT Fast Ethernet M C port Figure 5 9 Configuration Interface FE Mgt Page FE Management Interface The acceptable valid operating ranges for items in this section are provided in parenthe...

Page 79: ...eT Half Duplex Set the desired configurations on this page Click Submit to save 5 4 4 3 1 2 Configuration Interface GE 1 or GE 2 The Configuration Interface GE 1 and GE 2 pages permit the user to conf...

Page 80: ...ble valid operating range for each item in this section is provided in parentheses MODCOD Data Rate read only This section displays the effective data rate of the default MODCOD based on the symbol ra...

Page 81: ...default setting is all 0s Roll Off The Tx Alpha Rolloff dictates how fast the spectral edges of the carrier are attenuated beyond the 3 dB bandwidth With 20 rolloff the edge falls off more quickly th...

Page 82: ...ndex column automatically increments to the next available number when the specified static ARP entry is added to the ARP Table Delete Static ARP Enter the Entry Index to Delete Click Delete Entry whe...

Page 83: ...identifiable as Static or Dynamic and cannot be edited Make the desired IP and MAC Address edits Click Submit Changes to save 5 4 4 3 4 Configuration Routing Routes Use this page to enter static rout...

Page 84: ...addresses A unique WAN Label for each remote CDM 840 is required for correct network operation If the remote units have the same WAN Label then multiple CDM 840s will receive the same packet This can...

Page 85: ...e Refresh Rates Header Compression for UDP Enter the User Datagram Protocol refresh rate from 1 to 600 packets or 1 second whichever comes first Header Compression for RTP Enter the Real Time Protocol...

Page 86: ...MN CDM800 5 26 5 4 4 3 5 1 Configuration WAN QoS The appearance of this page changes depending on the selected QoS Control Mode Top Page with QoS Control Mode OFF Bottom Page with QoS Control Mode Dif...

Page 87: ...ion 1 Ethernet based Remote Product Management MN CDM800 5 27 Top Page with QoS Control Mode Max Pri ority Bottom Page with QoS Control Mode Min Max Banner VFP Menu Bar not shown Figure 5 16 Configura...

Page 88: ...nformation Rate for the QoS Group The QoS Manager will not allow traffic that matches this Group to send more than this data rate Max MODCOD This is the modulation code assigned to the group There can...

Page 89: ...click Add To change modify an existing group Select the index group row to edit Once all changes have been made click Change To delete an existing group Enter the index group to delete and then click...

Page 90: ...subnet in xxx xxx xxx xxx yy format Differentiated Services Table The Differentiated Services table appears only when QoS Control Mode DiffServ From left to right Index The automatically assigned spe...

Page 91: ...ection WRED congestion avoidance algorithm is imposed on these queues to drop the packets randomly rather than tail drop Low Drop Precedence full 0 to 100 In case of congestion the WRED is applied aft...

Page 92: ...ddress Mask is displayed here in the form XXX XXX XXX XXX YY Min Src Port Max Src Port Min Dst Port Max Dst Port The Source Destination Ports are displayed in these columns Min BW Kbps Min Max page on...

Page 93: ...e DSCP DiffServ Code Points Class Selector Precedence use the drop down menu to designate a priority for this rule from 1 Highest to 8 Lowest o WRED Use the drop down menu to set Weighted Random Early...

Page 94: ...ffic Router Compression or QoS tab to continue 5 4 4 4 1 1 Status Statistics Traffic Use this page to view read only abridged status windows pertaining to the basic operational statistics for the Ethe...

Page 95: ...rate in kilobits per second Maximum Rcvd Kbps Peak received data rate in kilobits per second Mod Statistics From left to right Column Description Pkts Xmitted Packets transmitted UC Pkts Xmitted Unica...

Page 96: ...er Use this page to view cumulative traffic information Figure 5 18 Status Statistics Router page Clear Statistics Click Clear to clear all operational statistics from the buffer Interface Counters Ro...

Page 97: ...d Header are installed and enabled Use this page to view read only cumulative WAN Payload Compression and Header Compression statistics Figure 5 19 Status Statistics Compression page Clear Compression...

Page 98: ...38 5 4 4 4 1 4 Status Statistics QoS The appearance of this page changes depending on the selected QoS Control Mode Top Page with QoS Control Mode OFF Max Pri ority or Min Max Bottom Page with QoS Con...

Page 99: ...ion of the terms used in this table Click Refresh to update this section with the latest available statistics Group Table This section is active only when QoS Control Mode is set to DiffServ See the C...

Page 100: ...istics section differs depending on the active page configuration See the Configuration WAN QoS page for the definition of the terms used in this table Click Refresh to update the QoS Statistics secti...

Page 101: ...ications sharing a common outbound The MODCODs are statically assigned based on link budget Use this page to view read only cumulative VCM statistics Figure 5 21 Status Statistics VCM page Clear Count...

Page 102: ...f Total Percentage of the total number of DVB S2 base band frames transmitted Average Throughput kbps Amount of data in Kbps being transmitted through this MODCOD Max Throughput kbps Maximum amount of...

Page 103: ...the unit C Click Refresh to update this display Alarms This section provides an overall tally of the Unit Tx and Traffic Ethernet alarms compiled since the logging buffer was last cleared Click Refres...

Page 104: ...agement MN CDM800 5 44 5 4 4 5 Utility Pages Click the Utility or Reboot tab to continue 5 4 4 5 1 Utility Utility Use this page to access a variety of top level system operation controls stored unit...

Page 105: ...On and then click Submit to save 10 MHz Internal Adjustment Enter a value from 999 to 999 to set the adjustment for the Internal 10 MHz High Stability Reference and then click Submit to save Test Mode...

Page 106: ...Insert ion as either Off or 10E 3 Click Submit to save the BERT settings and execute the test Once the Tx BERT is executed the entire outbound carrier transmits a BERT pattern All IP communications a...

Page 107: ...Click Reboot to reboot the unit A dialogue box appears to prompt continuation or cancellation of the reboot process Click OK to continue the reboot process or Cancel to abort the process and return to...

Page 108: ...CDM 800 Gateway Router Revision 1 Ethernet based Remote Product Management MN CDM800 5 48 Notes...

Page 109: ...indows based PC as follows o The PC serial port is connected to the CDM 800 rear panel CONSOLE port using a user supplied serial cable o The PC Ethernet port is connected to the CDM 800 rear panel MAN...

Page 110: ...ice the CDM 800 Gateway Router via its DB 9M CONSOLE port This connection makes possible serial remote monitor and control M C of the CDM 800 through its Serial Command Line Interface CLI Through this...

Page 111: ...or Controller to Target The Controller device e g the user PC CLI is used to transmit instructions commands to or to request information from queries the Target device i e the CDM 800 Target to Contro...

Page 112: ...troller Response to Command or Query Start of Packet Target Address Address Delimiter Instruction Code Code Qualifier Optional Arguments End of Packet ASCII code 62 1 character 0000 default 4 characte...

Page 113: ...using this same address to indicate the source of the packet 6 2 2 3 Address Delimiter This is the forward slash character ASCII code 47 6 2 2 4 Instruction Code This is a three character alphabetic s...

Page 114: ...truction Code that precedes it is to be used as a query that returns the Target s current configured parameter setting or operational value Example From Controller to Target IG1 means what s the curre...

Page 115: ...edges the message and responds with for example CMD with message arguments ASCII code 35 If the Controller sends a correctly formatted command BUT the unit is not in Remote Mode it does not allow reco...

Page 116: ...Set default passwords X 5 9 IG1 Set or query the IP Address and network prefix for the GE 1 10 100 1000 Gigabit Ethernet Port X X 5 9 IG2 Set or query the IP Address and network prefix for the GE 2 1...

Page 117: ...Number of Arguments Description of Arguments Response to Command Query Instruction Qualifier Response to Query Default Passwords DPW N A Command Only Resets the admin username password to Username co...

Page 118: ...ement IP Address IPA 18 bytes numerical Command or Query Sets the IP Address and network prefix for the 10 100 Base T Ethernet management port in the form aaa bbb ccc ddd yy where Permitted ranges can...

Page 119: ...onfiguration MLC 1 byte value 0 thru 5 Command or Query Management Interface mode where 0 Auto Negotiate 1 reserved 2 100Mbps Full Duplex 3 100Mbps Half Duplex 4 10Mbps Full Duplex 5 10Mbps Half Duple...

Page 120: ...CDM 800 Gateway Router Revision 1 Serial based Remote Product Management MN CDM800 6 12 Notes...

Page 121: ...nctions as they are required FAST allows an operator to order a unit precisely tailored for the initial application When service requirements change the operator can upgrade the topology of the unit t...

Page 122: ...Web Server Interface to activate FAST Features Figure A 1 CDM 800 Web Server HTTP Interface ADMIN FAST page The CDM 800 Web Server Interface Admin FAST page Figure A 1 is used for complete management...

Page 123: ...are for any practical range of error rates LDPC also functions differently than Viterbi decoding by using iterative decoding In this process the data initially corrected by the LDPC decoder is re enco...

Page 124: ...rent modulation types and code rates The relation between the two quantities is given by Eb No Es No 10log Spectral Efficiency Occupied Bandwidth Occupied bandwidth is defined as the bandwidth between...

Page 125: ...CDM 800 Gateway Router Revision 1 Appendix B MN CDM800 B 3 Figure B 1 DVB S2 QPSK Packet Error Rate versus Es No...

Page 126: ...CDM 800 Gateway Router Revision 1 Appendix B MN CDM800 B 4 Figure B 2 DVB S2 8PSK Packet Error Rate versus Es No...

Page 127: ...CDM 800 Gateway Router Revision 1 Appendix B MN CDM800 B 5 Figure B 3 DVB S2 16APSK Packet Error Rate versus Es No...

Page 128: ...CDM 800 Gateway Router Revision 1 Appendix B MN CDM800 B 6 Figure B 4 DVB S2 32APSK Packet Error Rate versus Es No...

Page 129: ...214 x 10 4 1 kilometer 1 x 106 1 x 105 3 938 x 104 3 281 1093 1000 1 0 6214 1 mile 1 609 x 106 1 609 x 105 6 336 x 104 5280 1760 1609 1 609 1 Temperature Conversions Units of Weight Unit Gram Ounce Av...

Page 130: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...

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