Paradise Datacom Vision Series Installation And Operating Handbook Download

Page: 1 / 164

Issue 8.0.13, 1 July 2009

2009

EN 55022 - Class B

EN 55024
EN 60950

Paradise Datacom Ltd.

Paradise Datacom LLC

1 Wheaton Road

328 Innovation Blvd.

Witham, Essex, CM8 3UJ, England.

State College, PA 16803, U.S.A.

Tel: +44(0)1376 515636

Tel: +1 814 238 3450

Fax: +44(0)1376 533764

Fax: +1 814 238 3829

http://www.paradisedata.com

Installation and Operating Handbook for

Vision Series Satellite Modems

Summary of Contents for Vision Series

Page 1: ...oad 328 Innovation Blvd Witham Essex CM8 3UJ England State College PA 16803 U S A Tel 44 0 1376 515636 Tel 1 814 238 3450 Fax 44 0 1376 533764 Fax 1 814 238 3829 http www paradisedata com Copyright 2008 2009 Paradise Datacom Ltd All rights reserved Installation and Operating Handbook for Vision Series Satellite Modems ...

Page 2: ...5 3 Getting Started 5 1 5 4 Pow er Up 5 1 Chapter 6 Introduction 6 1 6 1 Overview 6 1 6 2 Hardw are Options 6 2 6 2 1 Quad ASI Option Card 6 2 6 2 2 IP Traffic Option Card 6 2 6 2 3 Optional L band BUC Pow er Supplies 6 3 6 2 4 L band FSK DC Option Card 6 5 6 3 Softw are Options 6 5 6 4 Front Panel 6 7 6 4 1 LEDs 6 7 6 4 2 LCD Display 6 7 6 5 Rear Panel 6 9 Chapter 7 User Interfaces 7 1 7 1 User N...

Page 3: ...ic Routes 7 101 7 4 14 Header Compression 7 102 Chapter 8 Modem Concepts 8 1 8 1 Clocking 8 1 8 1 1 Transmit Clocking 8 1 8 1 2 Receive Clocking 8 1 8 2 1 for 1 Operation 8 3 8 2 1 Basic Theory 8 3 8 2 2 Sw itching Philosophy 8 4 8 2 3 Detected Failures 8 4 8 2 4 Manual Sw itchover 8 4 8 2 5 1 for 1 Setup Procedure 8 4 8 3 Softw are Activated Features 8 5 8 4 Softw are Upgrading 8 5 8 5 Tutorial O...

Page 4: ... Specifications 13 2 13 3 Rx Demodulator Specifications 13 3 13 4 Clocking and Buffering Specifications 13 3 13 5 BERT Option Specifications 13 4 13 6 Data Rate Specifications 13 4 13 7 Traffic Log Specifications 13 6 13 8 Common Specifications 13 6 13 9 Internet Traffic 13 8 13 10 BUC LNB facilities 13 9 Chapter 14 Glossary 14 1 Chapter 15 Customer Technical Support 15 1 ...

Page 5: ...date details of other languages that are supported The Vision modem provides a DVB S2 capability and a bandw idth halving technique called Paired Carrier DVB S2 is a highly efficient and robust coding and modulation standard for satellite transmission that can significantly reduce satellite bandw idth requirements compared w ith legacy standards Paired Carrier allows space segment reuse It incorpo...

Page 6: ...nformation in this handbook this cannot be guaranteed and the information contained herein does not constitute a product w arranty A product warranty statement is provided separately to this handbook Paradise Datacom maintains a programme of continuous product improvement and reserves the right to change specificationsw ithout prior notice 2 4 GNU General Public Licence This product contains softw...

Page 7: ...ion of the equipment in an environment other than that stated in the specifications will also invalidate the safety compliancy The equipment must not be operated in an environment in w hich the unit is exposed to Unpressurised altitudes greater than 2000 metres Extremes of temperature outside the stated operating range Excessive dust Moisture or humid atmospheres above 95 relative humidity Excessi...

Page 8: ...quipment must be such that the mains supply socket outlet for the equipment should be near the equipment and easily accessible or there should be another suitable means of disconnection from the mains supply The equipment is designed to operate from a TN type pow er supply system as specified in EN 60950 1 i e a system that has separate earth line and neutral conductors The equipment is not design...

Page 9: ...tains compliance with electromagnetic compatibility standards please observe the following points The equipment must be operated w ith its cover on at all times If it is necessary to remove the cover for any reason then you must ensure that the cover is correctly refitted before normal operation For the baseband data interfaces all D type connectors must have grounding fingers on the plug shell to...

Page 10: ... 3 Getting Started If the unit is to be rack mounted then adequate ventilation and cooling should be provided This must include leaving adequate clearance around the ventilation holes on the sides and the fan on the back panel Connect the appropriate cables to the Transmit IF and Receive IF connectors at the rear of the unit Output pow er levelcan be controlled using the front panel menus 5 4 Powe...

Page 11: ... modulation schemes Forw ard Error Correction FEC options of Viterbi Trellis Coded Modulation TCM and Low Density Parity Check LDPC as part of DVB S DSNG S2 Outer FEC options of concatenated Reed Solomon RS and Bose Chaudhuri Hocquenghem BCH Terrestrial interface options of ASI and Gigabit Ethernet Front panel display and keypad for local control Remote control through both serial and IP interface...

Page 12: ...current TCP connections Typical satellite bandw idth utilization w ith acceleration sw itched on is around 90 4 HTTP acceleration w hich downloads typical w eb pages up to 30 faster on average 5 Header compression Ethernet IP UDP compliant to RFC3095 ROHC Robust Header Compression is supported at throughput rates up to 29000 packets per second one way 22000 packets per second two way Ethernet head...

Page 13: ...ct Customer Technical Support for up to date details 6 2 3 Optional L band BUC Power Supplies The follow ing PSU options are available for pow ering BUCs Part Number BUC PSU Type P3531 100W 48V output A C in D C out P3535 180W 48V output A C in D C out P3532 100W 24V output A C in D C out P3536 180W 24V output A C in D C out P3537 48V input 180W 48V output D C in D C out P3538 48V input 180W 24V o...

Page 14: ... 10W C band 5662 5663 48V 130W P3535 NJR 1W Ku band 5015 24V 25W P3532 NJR 1W Ku band 5075 24V 18W P3532 NJR 1 5W Ku band 5035 24V 24W P3532 NJR 2W Ku band 5076 5016 24V 37 5W P3532 NJR 3W Ku band 5037 24V 30W P3532 NJR 4W Ku band 5077 5017 24V 48W P3532 24V 170W P3536 NJR 8W Ku band 5018 48V 170W P3535 24V 60W P3532 Codan 5W C band 6705 48V 60W P3531 Codan 10W C band 6710 48V 105W P3535 Codan 20W...

Page 15: ...ures is explained in Section 8 5 In the table the SAF Code column lists the acronyms by w hich each feature is referred to in relation to the modem user interfaces technical datasheets etc Note also that the feature set is being expanded all the time please contact Customer Technical Support for up to date information Note that the follow ing are provided in the standard Vision base modem Tx Rx DR...

Page 16: ...d demultiplexed In DVB S DSNG this feature allow s only the Quad ASI ports to be multiplexed demultiplexed PRBS PRBS Enables the internal Pseudo Random Bit Sequence PRBS Bit Error Rate BER tester FSK control FSK Enables remote control of a BUC via an FSK modulated signal multiplexed onto the IF cable TCP acceleration at throughput rates up to 80Mbps TCP TCP16 TCP25 TCP55 Enables a Performance Enha...

Page 17: ...Unit OK Rx Traffic Rx fault or Rx disabled Not used Not used Rx OK Tx Traffic Tx fault or Tx disabled Not used Not used Tx OK Test Mode Normal mode Not used Test mode Not used Tx Carrier Carrier muted Not used 1 for 1 standby Carrier active Front Panel LED Status 6 4 2 LCD Display The backlit LCD is a graphical display formatted to give 3 lines of 40 text characters and is highly legible even in s...

Page 18: ... Help screen Numeric entry mode 123 Alphabetic entry mode abc Modem is on a Tx Edit screen Tx Modem is on an Rx Edit screen Rx Front Panel LCD Icons 6 4 2 1 Keypad The keypad see the diagram below is based on a sealed tactile membrane and allows full alphanumeric entry and navigation using arrow keys Front Panel Keypad ...

Page 19: ...ud This is an M4 stud for connecting a safety earth conductor directly to the chassis of the unit Tx IF Output Option This connector is a BNC female and can be used in either 50Ω or 75Ω impedance mode The output pow er levelcan be varied from 0dBm to 20dBm Tx L Band Output Option This connector is a N type female and is of 50 Ω impedance The output pow er level can be varied from 5dBm to 30dBm Ala...

Page 20: ...f the modem should be in the range 20dBm to 70dBm A level of 45dBm is recommended The maximum composite pow er level that should be applied to this port is 35dBc up to maximum of 10dBm Fan There is a fan that runs at all times w hile the unit is pow ered This draws air in from the sides and expels to the rear The side vents must not be blocked 1 1 Redundancy Connector The modem has a built in 1 fo...

Page 21: ...75Ω BNC female that accepts a 1 10MHz signal either a square wave of 1V p p e g a G 703 para 10 synchronising clock or a sinusoid at a pow er level of 0dBm or greater An alternative Station Clock signal at RS422 interface levels can be applied to the Async ESC connector Either signal can be used by the modem as a reference for the receive output clock the Station Clock does not have to be the same...

Page 22: ...ions 7 1 1 Local Mode On shipping from the factory the modem defaults to Local mode w hich allows control of the modem from the front panel interface only Web users can how ever log in and view the modem settings w hile the modem is in Local mode Note that SNMP is disabled by default and therefore cannot be used as an alternative method of remote control until it is enabled When SNMP is enabled th...

Page 23: ...erface controlw ill time out in a similar w ay to remote admin users and thereby control may be taken aw ay again by a remote admin user During the period betw een an admin user logging out and either another admin login or a command being issued via the local front panel interface to gain control no user is in control of the modem Although there is no explicit login associated w ith the local fro...

Page 24: ...en menu options When entering an alphanumeric value it moves the cursor to the preceding digit The Left arrow key has a special function w hen view ing the system log where it is used to move backw ards in the log by 100 entries The Right arrow key moves the cursor to the right On a menu this is used to navigate betw een menu options When entering an alphanumeric value it moves the cursor to the n...

Page 25: ... the M C control is displayed This brings up scrollable text that explains the M C control s function Pressing the 0 key and Left arrow key together for a second time removes the Help text and reverts the display back to its previous contents Keyboard Lock The keypad can be locked against inadvertent use by holding dow n the 0 key and pressing the MAIN key together at the same time Pressing the tw...

Page 26: ... option or alternatively the arrow keys can be used to highlight a particular option w hich can then be selected using the Enter key The numbers are highlit only in order to differentiate them from the menu option text Screen Type 2 Entry of Numeric Value Screen Type 3 Menu Selection from Scrollable List Note that on a scrollable menu the Up and Down arrow keys are used to scroll through the avail...

Page 27: ...are selected It contains the follow ing sub menus Status Displays modem operational status summary information Edit Allow s modification of all modem configurable properties View Displays detailed operational status and read only configurable property values Test Controls the selection of test modes A user settable Modem Identifier is shown on the top line of the screen and is typically used to sp...

Page 28: ...ser interface is documented separately in the document Installation and Operating Handbook for Evolution and Vision Series Redundancy Switch Status Setup Screen This screen is constantly updated w ith the follow ing information Transmit frequency Receive frequency Transmit terrestrial data rate Receive terrestrial data rate Transmit symbol rate Receive symbol rate Status Traffic Screen This screen...

Page 29: ...isplayed instead that indicates the nature of the fault The transmit carrier status w hich displays one of the follow ing o Normal the carrier is on o Mute Ext the carrier is muted due to an alarm detected by the modem hardw are o Mute Ter the carrier is muted due to either the terrestrial Tx RTS pin being active this is an input signal that can be used to mute the carrier under external control a...

Page 30: ...ns due to phase noise etc Due to the sharp w aterfall effect present in DVB S2 BER curves a modem can go from error free to losing demodulator lock in a small fraction of a dB MER can help determine how close the modem is operating to this edge The receive path final bit error rate BER The receive path pow er level The receive signal frequency offset from the carrier centre frequency This is the m...

Page 31: ...the screen Status BER Screen This screen shows the receive path final bit error rate BER in large font for easy view ing It shows the user settable Modem Identifier on the bottom line of the screen Status Power Screen This screen shows the receive signal pow er level in large font for easy view ing It shows the user settable Modem Identifier on the bottom line of the screen Eb No 15dB ID London Ne...

Page 32: ...sed loop mode this presents the Terminal RF output pow er level i e the modem output pow er to the BUC and the BUC attenuation level In open loop mode Terminal RF and BUC attenuation data is not show n and instead the mode is show n as Independent Status this show s the temperature in degrees Centigrade reported by the BUC Type this field shows the BUC pow er class in Watts and the BUC current lev...

Page 33: ...to be changed Memories This option selects the configuration memory submenu w hich allow s the modem configuration to be saved or a previous configuration to be recalled 7 3 3 1 Edit Tx Menu This menu contains the follow ing options Interface This option allows Tx specific terrestrial interface options to be set Mode This option controls the selection of DVB mode and submodes Baseband This submenu...

Page 34: ...he Quad ASI card can be individually configured using the Edit Unit Interface ASI menu option The IP traffic card settings can be configured using the Edit Unit Interface IP menu option 7 3 3 1 2 Edit Tx Mode Screen Options DVB S Selects DVB S DVB DSNG mode DVB S and DVB DSNG FEC and modulation options w ill only be available if the respective SAF features have been enabled DVB S2 Selects DVB S2 m...

Page 35: ...ch DVB S2 frame VCM Selects DVB S2 VCM Variable Coding and Modulation mode This mode allow s different FEC rates and modulation to be applied to each data stream Factory default CCM Description Controls DVB S2 mode selection After selecting this pressing ENTER for a second w ill allow the DVB S2 transport mode Transport Generic Continuous Generic Packetised to be set Edit Tx Mode Transport Mode Sc...

Page 36: ...ata is MPEG2 TS i e w hen the Quad ASI interface is selected Factory default Generic Continuous Description This selects the stream type w ithin DVB S2 7 3 3 1 3 Edit Tx Baseband Menu This menu contains support for DVB S2 multiple streams The current version of the software supports single stream CCM mode only Consequently this menu is reserved for future use 7 3 3 1 4 Edit Tx FEC Mod Menu Note th...

Page 37: ...d only in DVB S mode w hen the DVB DSNG SAF is enabled 16APSK Valid only in DVB S2 mode Factory default QPSK Description Selects the modulation type for the Tx path After selection if the ENTER key is pressed again then the FEC code rate is displayed and can be changed Edit Tx FEC Mod Pilots Screen Options Off On Edit Tx FEC Mod Modulation 16APSK New 8PSK Edit Tx FEC Mod Pilot tones Off New On ...

Page 38: ... using higher order modulation schemes in noisy environments They add an overhead of around 2 5 to the transmitted data Edit Tx FEC Mod Frame Type Screen Options Short Selects a DVB S2 frame size of 16200 bits Normal Selects a DVB S2 frame size of 64800 bits Factory default Short Description Sets the DVB S2 FEC frame size Edit Tx FEC Mod Code Rate Screen Options 1 4 1 3 2 5 Edit Tx FEC Mod FEC fra...

Page 39: ...k 7 18 1 2 3 5 2 3 3 4 4 5 5 6 7 8 8 9 9 10 Factory default 1 2 Description Selects the FEC code rate The rates that are available depend on the particular DVB mode and modulation scheme that have been selected Edit Tx FEC Mod Maintained Rate Screen ...

Page 40: ...ther the Maintained rate is set to Data rate or Symbol rate Factory default 50000 Description Sets the terrestrial data rate for the Tx path It needs to be ensured that data coming in to the modem from the selected terrestrial interface does not exceed this rate otherw ise data w ill be lost Note that it is possible to choose whether to maintain data rate and vary symbol rate or vice versa see Edi...

Page 41: ...ate if the ENTER key is pressed again then the data rate is displayed but cannot be altered Edit Tx FEC Mod Scrambler Screen Factory default 0 Description This sets the DVB S2 Physical Layer scrambler signature This is used in scrambling the contents of the physical layer frames other than the header for improved energy dispersal reducing interference betw een different signals Scrambling sequence...

Page 42: ...efore can be used to control occupied bandw idth and channel spacing Advanced This gives access to a BUC control menu on L band modems Edit Tx Carrier Enable Screen Options Off The carrier is off On The carrier is on and w ill remain on even after the equipment is sw itched off and on again On mute if outage mute if power break Mute on pow er break requires confirmation of transmission i e selecti...

Page 43: ...e 25 0 Maximum value 0 Step size 0 1 Factory default 25 0 Description Tx IF output pow er level Edit Tx Carrier Power Screen L band Modem Units dBm Minimum value 30 0 Maximum value 5 Step size 0 1 Factory default 30 0 Description Tx L Band output pow er level Edit Tx Carrier IF output power 15 0 New 10 0 25 0dBm Edit Tx Carrier RF output power 15 0 New 10 0 30 5 dBm ...

Page 44: ... betw een 90 and 100MHz cannot be selected Edit Tx Carrier Frequency Screen L Band Modem Units MHz Minimum value 950 0000 Maximum value 1950 0000 Step size 0 0001 Factory default 950 0000 Description Tx L Band frequency used to transmit to satellite Edit Tx Carrier Inversion Screen Edit Tx Carrier IF carrier freq 070 0000 New 070 0000 50 90 100 180MHz Edit Tx Carrier RF carrier freq 950 0000 New 9...

Page 45: ...ns 35 25 20 Factory default 35 Description Controls the gradient on the sloping shoulders of the transmit spectral mask and therefore can be used to control occupied bandw idth and channel spacing Edit Tx Carrier Advanced BUC Menu The follow ing BUC screens are available only on L band modems This menu contains the follow ing options Edit Tx Carrier Filter roll off 35 New 25 Edit Tx Carrier Advanc...

Page 46: ...ly to the BUC Reference This controls whether the modem provides a 10MHz reference signal to the BUC Output Turns the BUC RF output on or off Attenuation This allow s the user to vary the BUC attenuator level 1 for 1 This controlswhether BUC services i e DC supply and 10MHz reference stay with the on line modem or sw itch to the standby modem w hen a 1 for 1 sw itchover occurs in a 1 for 1 redunda...

Page 47: ...o BUC attached or it is controlled independently Other If you are not using a Paradise BUC select Other and manually configure the BUC parameters RFT5000 Ku Uses RS485 comms to RFT5000 LO frequency 15450 MHz User FSK enabled but user must set LO frequency of BUC C5 85 6 725 GHz CODU Uses RS485 comms to CO unit LO frequency 4900MHz Ku 14 14 5 GHz CODU Uses RS485 comms to CO unit LO frequency 13050M...

Page 48: ...quency 13050MHz Offset Ku 13 75 14 25 GHz VSAT Only available if FSK option fitted LO frequency 12800MHz Factory default None Description Allows the user to select from a number of Paradise BUCs or Other if another manufacturer s BUC is being used If an option other than None is selected then the user is taken to the following Terminal Mode screen Edit Tx Carrier Advanced BUC Terminal Mode Screen ...

Page 49: ...cies instead of the IF frequencies When the BUC type has been set to a know n Paradise BUC and the modem has the FSK communications option then this setting is done automatically and the menu option to manually set the frequency shift is not presented Edit Tx Carrier Advanced BUC Power Screen Units W Minimum value 0 Maximum value 999 Step size 1W Factory default 0 000 Description This screen tells...

Page 50: ... 10MHz Reference Screen By selecting On the modem s internal 10MHz reference signal can be sourced from the modem up the coaxial site cable to the BUC Edit Tx Carrier Advanced BUC Output Screen This sw itches the BUC Tx carrier on and off independently of the modem s Tx carrier on off control This may be useful w here one BUC carries several carriers passively combined but w ith one modem providin...

Page 51: ...aturate the BUC input unless the attenuator early in the BUC gain profile is set suitably high If in doubt alw ays start with the minimum modem Tx Carrier level and the maximum BUC attenuation Edit Tx Carrier Advanced BUC 1 for 1 Screen This controls w hether BUC services i e DC supply 10MHz reference and FSK communications stay with the on line modem or sw itch to the standby modem w hen a 1 for ...

Page 52: ...path to be automatically configured to be the same as the transmit path thereby simplifying set up There are a number of exceptions including carrier frequency and spectral inversion 7 3 3 2 1 Edit Rx Interface Screen See the description of the transmit path equivalent 7 3 3 2 2 Edit Rx Mode Screen See the description of the transmit path equivalent 7 3 3 2 3 Edit Rx Baseband Menu See the descript...

Page 53: ... Screen See the description of the transmit path equivalent Edit Rx FEC Demod Data Rate Screen See the description of the transmit path equivalent Edit Rx FEC Demod Symbol Rate Screen See the description of the transmit path equivalent Edit Rx FEC Demod Scrambler Screen See the description of the transmit path equivalent Edit Rx Demodulation Sweep Screen Options Normal In this mode the sw eep w id...

Page 54: ...th w hen the Sweep mode is set to Other This is a setting i e the total w idth is tw ice the value that is entered 7 3 3 2 5 Edit Rx Carrier Menu See the description of the transmit path equivalent This menu contains the follow ing options Frequency This sets the frequency used to receive from the satellite Inversion This controls whether the I and Q channel outputs are swapped to give spectrum in...

Page 55: ... ing options LNB type This allows selection of the LNB type that is fitted It also allow s the modem to display and the user to edit the final SHF frequencies instead of the normal L band frequencies PSU This allows the DC supply to the LNB from the modem to be turned on or off Reference This controls whether a 10MHz reference signal is supplied to the LNB from the modem 1 for 1 This controls whet...

Page 56: ...r of Paradise LNBs or Other if another manufacturer s LNB is being used If Other is selected then the follow ing LNB Frequency Offset screen is displayed Note the Std C LNB uses a high side Local Oscillator LO and the received SHF frequency is LO IF frequency not LO IF as w ith most other bands This is academic as it is handled automatically by the modem w hich displays the correct SHF frequency N...

Page 57: ...ike the situation where a predefined Std C band LNB is selected and the modem know s that a high side LO is being used Edit Rx Carrier Advanced LNB PSU Menu The Vision L Band modem can supply either 15V or 24V at 500mA to the LNB up the coaxial site cable or line pow ered The options available are Off 15V or 24V Severe damage may occur if a DC supply or the wrong voltage DC supply is fed to a LNB ...

Page 58: ...sm Round trip delay This allow s the option of setting the satellite round trip delay either by entering positional coordinates for the modem earth station and the satellite or alternatively setting an absolute delay The delay is required in order for the Paired Carrier signal processing algorithm to find a best match for its stored copy of the outgoing transmitted signal w ith the composite retur...

Page 59: ...eturn signal in order to subtract the unw anted near signal leaving just the far carrier Prior to enabling Paired Carrier it is necessary to set up the delay to satellite as in the follow ing menu options Note that there are no other control settings that are specific to Paired Carrier operation other settings used by the Paired Carrier algorithm such as centre frequency and sweep width form part ...

Page 60: ...ed signal at the second modem is data transparent 3 Sw itch the first carrier off 4 Bring up the second carrier using the selected common transmission frequency and Check the receive signal level is as expected Check the received signal at the second modem is data transparent 5 Bring up both overlapping carriers at the same time 6 Check that the pow er level and frequency overlap are as expected 7...

Page 61: ...ip delay This can be entered as a time delay or can be automatically calculated from location information The delay is required in order for the Paired Carrier signal processing algorithm to find a best match for its stored copy of the outgoing transmitted signal w ith the composite return signal in order to subtract the unw anted near signal leaving just the far carrier Edit Rx Carrier Advanced P...

Page 62: ...al position of the modem earth station Units Degs Minimum value 180 00 Maximum value 180 00 Step size 0 01 Factory default 000 00 Description The longitudinal position of the satellite Edit Rx Carrier Advanced PCMA Delay Screens When the Round trip delay method for Paired Carrier is set to Delay then the follow ing screens are displayed in sequence Earth station lat 90 to 90Degs 00 00 Step 0 01Deg...

Page 63: ...t Off Description Controls w hether specific Rx configuration parameters mirror the equivalent Tx parameters Exceptions include carrier frequency spectral inversion and parameters that have no Tx equivalent such as sw eep control This feature can be used to simplify the configuration for duplex links When sw itched off the Rx configuration retains its values and does not return to the values prior...

Page 64: ...d in place of the internal 10MHz reference Time This allows the time and date to be set Advanced This submenu controls alarm thresholds special modes 1 for 1 standby modem sw itching and it also allows the entry of SAF codes to activate additional software features in the modem 7 3 3 3 1 Edit Unit Modem Identifier Screen Factory default Paradise Vision modem Description User assigned field typical...

Page 65: ...it to receive input data to be transmitted to the satellite If the modem is set to allow multistreaming then the data w ill be interleaved w ith any other port on the Quad ASI card that is enabled as Tx as w ell as any other terrestrial interface card that is enabled Out Note this may be show n as Rx in earlier versions of the software Sets the respective port of the Quad ASI card to enable it to ...

Page 66: ...be displayed in turn depending on what features have been supplied with the modem Edit Unit Interface IP IP Encapsulation Type Screen Options MPEG over IP This should be used only w hen MPEG2 packets are being encapsulated directly inside IP packets ULE This selects Ultra Lightw eight Encapsulation RFC 4326 MPE This selects Multi Protocol Encapsulation RFC 4259 PXE This selects Paradise eXtreme En...

Page 67: ...overhead than either MPE or ULE Although the Vision modem supports MPEG2 TS packets wrappered inside IP packets it has a general IP capability and can transmit and receive any IP protocol TCP UDP multicast HTTP SMTP FTP etc When using Vision modems at both ends of a link PXE should normally be used in order to reduce the overhead to a minimum When interoperating w ith other equipment the Vision mo...

Page 68: ...RTP packets in addition to the MPEG2 packets Edit Unit Interface IP Destination Address Screen Factory default 000 000 000 000 Description This option is relevant only when MPEG over IP is selected as the encapsulation type It is used on the Rx side only and is used to build a new IP packet for transmission onto the local terrestrial netw ork The MPEG2 packets that are received over satellite are ...

Page 69: ...e only and is used to listen for multicast IP packets being sent to the modem for transmission over satellite Edit Unit Interface IP Local Multicast Port Screen Factory default 0 Description This option is relevant only when MPEG over IP is selected as the encapsulation type It is used on the Tx side only and is used to listen for multicast IP packets on a particular UDP port being sent to the mod...

Page 70: ...an be populated by manually entering routes and or by turning on one or more of the supported dynamic routing protocols The dynamic routing protocols enable the modem to automatically populate the routing table based on information forw arded by other routers in the netw ork The modem operates as a tw o port router in this mode See the TCP IP w hite paper at http www paradisedata com w hitepapers ...

Page 71: ...rk segments devices are located on Hub Sets up a modem to w ork as a point to multipoint bridge hub All modems at the hub site should be configured to this mode Bridging rather than brouting should be used in point to multipoint systems that have a direct return path via satellite Remote Sets up a modem to w ork as a point to multipoint remote site All modems connected to a point to multipoint bri...

Page 72: ...satellite Both the Tx and Rx modems should have brouting enabled In this mode the Ethernet bridge in the Tx modem does not expect to receive replies and simply transmits all Ethernet frames over satellite other than those destined for itself TCP acceleration mode This mode provides bridging of non TCP packets combined w ith acceleration of TCP packets using a Performance Enhancing Proxy PEP that o...

Page 73: ...ined w ith acceleration of TCP packets using a Performance Enhancing Proxy PEP that overcomes performance problems associated w ith using standard TCP over satellite No TCP acceleration TCP acceleration is turned off Factory default No TCP acceleration mode Description This option is available in routing mode Interface IP TCP accelaration No TCP acceleleration New No TCP accelaration ...

Page 74: ...ed traffic circulating on the netw ork On In this mode the bridge w ill discard all traffic other than that destined for the local subnet This can be useful in preventing netw ork loops from occurring A netw ork loop can be created for example in a point to multipoint scenario w here there are multiple Rx only modems w ith a common indirect return path and a default gatew ay is specified that caus...

Page 75: ...into non promiscuous mode w hich can significantly reduce the loading on the modem processor as it helps to reduce the number of Ethernet frames that need to be processed When out of the bridge the base modem Ethernet port marked IP Traffic is currently not used Note that care should be taken in selecting this mode for a remote modem if the tw o cables have been mixed up then M C communications w ...

Page 76: ...ned if required as specified in the TCP IP w hite paper at http www paradisedata com w hitepapers php Disable OSPF The OSPF dynamic routing protocol is turned off Note this w ill overw rite any existing configuration including any modified as specified above see the TCP IP w hite paper at http www paradisedata com w hitepapers php for more details Factory default Disable OSPF Description This opti...

Page 77: ... more details Factory default Disable RIP Description This option is available in routing mode Edit Unit Interface IP Traffic Port IP Address Screen Factory default 0 0 0 0 Description Sets the IP address for the IP Traffic card Both of the Ethernet ports on the IP Traffic card use this same address and can be used interchangeably Unlike the base modem Remote M C port DHCP is not supported and the...

Page 78: ...the local netw ork This is used w ith TCP acceleration brouting and header compression An address of 0 0 0 0 means that the gatew ay is not set In straight bridging mode it is not normally necessary to set this gatew ay as the bridge automatically learns the location of each device Note that there are two gateways that can be defined in the modem The Traffic Port IP Gateway is used exclusively in ...

Page 79: ...eing sent first follow ed by the medium priority levels 6 and 5 and finally packets from the low priority levels 4 to 0 queue How ever if there is a large amount of high priority traffic this can have the effect of starving bandw idth for low er priority traffic Selecting Weighted QoS enables fair weighted queuing This applies a w eighting to the three traffic queues w here the highest priority da...

Page 80: ...h remote It also learns the location of every device connected to each remote As data is received at the hub the Tx modem adds a VLAN tag with the id of the remote for which it is destined At the remote unw anted data is filtered out and discarded The VLAN tag is also removed from w anted packets that have been received at the remote before they are forwarded onto the local terrestrial IP netw ork...

Page 81: ...ting the remaining content On average this w ill speed up the display of w eb pages by around 30 When sw itched On the follow ing screen is displayed This represents the IP address of a domain name server that can translate URLs host names used in requesting w eb pages e g http www microsoft com into IP addresses The DNS server IP address is normally provided by the Internet Service Provider ISP o...

Page 82: ...s allow s the IP address for the remote control interface to be set along w ith a subnet mask and a default IP gatew ay The gatew ay acts as the next hop w hen forwarding IP data not destined for the modem or local subnet Edit Unit M C Control Screen Options Local Giveaway Takeaway Factory default Giveaway Description Controls modem ow nership In Local mode only the front panel can be used to cont...

Page 83: ...vity after w hich a user is logged out This is true even for the local user interface this has an implicit login when the operator first presses a key In Giveaway mode logging out causes ownership of the modem to be lost Edit Unit M C Password Screen Factory default paradise Description Modem passw ord for remote admin user login login name is admin The admin user can both view and control the mod...

Page 84: ...ng the admin user password screen Modem passw ord for remote view only user login login name is user Multiple view only users can be logged in at the same time Edit Unit M C Interface Screen Options RS232 RS485 Factory default RS232 Description Specifies the remote control serial interface mode Password Remote view only user password New M C Interface Remote M C interface RS232 New RS485 ...

Page 85: ... 1200 baud 2400 baud 4800 baud 9600 baud 19200 baud 38400 baud 57600 baud 76800 baud 115200 baud Factory default 9600 baud Description Specifies the remote control serial interface baud rate Edit Unit M C RS485 Address Screen Edit Unit M C Interface Baud rate 9600 baud New 9600 baud Unit M C Interface RS485 address 1 New 1 0 255 ...

Page 86: ... modem to dynamically request an IP address from a DHCP Dynamic Host Control Protocol server on the netw ork removing the need to allocate static IP addresses to each modem The allocated IP address can be seen on the View Unit Config Unit screen Note that the IP address may take a short period before it appears as the request to the DHCP server is made every minute until a reply is received Edit U...

Page 87: ... packets destined for somew here other than the local netw ork An address of 0 0 0 0 means that the gatew ay is not set 7 3 3 3 4 Edit Unit Clocks Screen Options None BNC RS422 Factory default None Description Controls the station clock source to be used in place of either the internal 10MHz reference or to replace only the Rx reference clock This can be used for example to run all modems from a c...

Page 88: ...ence clock Edit Unit Clocks Station Clock Frequency Screen Units kHz Minimum value 1 Maximum value 10000 Step size 1 Factory default 10000 Description Indicates to the modem the frequency of the station clock input reference signal that w ill replace the Rx only reference clock If the station clock is being used to replace the internal 10MHz reference then this screen is not show n Edit Unit Clock...

Page 89: ...edundancy settings SAF Software Activated Feature settings and adjustment to the internal 10MHz reference clock Edit Unit Advanced Alarms Menu This menu allows configuration of alarm threshold and action settings Edit Unit Advanced Alarms Thresholds Menu This menu allows configuration of alarm threshold settings Edit Unit Date time 14 41 45 06 04 2008 New 14 41 45 06 04 2008 Edit Unit Advanced 1Al...

Page 90: ...the BER threshold alarm option of the Edit Unit Advanced Alarms Actions menu Edit Unit Advanced Alarms Thresholds Eb No Threshold Screen Units dB Minimum value 0 0 Maximum value 99 0 Step size 0 1 Factory default 3 0 Description Sets the Eb No threshold below w hich a deferred alarm w ill be generated Edit Unit Advanced Alarms Thresholds BUC PSU Screen Alarms Thresholds BER threshold 1 0E 4 New 1 ...

Page 91: ...he combined over under current over temperature alarm for the Tx DC sw itch is considered a fault or not Clr 1 1 alm Allow s the user to temporarily clear a modem alarm that is preventing a 1 1 changeover Edit Unit Advanced Operation Menu This menu allows configuration of redundancy settings power supply break acknowledgement and allows a SAF demonstration test shot to be ended returning the SAF s...

Page 92: ...s only available if the modem is an integral part of a 1 for N redundancy sw itch Please see separate redundancy sw itch operating manual Edit Unit Advanced Operation Ack Pwr Bre Screen This allow s the transmit carrier to be restored follow ing a mains pow er failure if the transmit carrier control has been set to On mute if outage Please see Edit Tx Carrier menus Edit Unit Advanced Operation End...

Page 93: ...nable a free 10 day test shot of all features Three test shots are available and may be activated singly or together one after another to give up to a 30 day test period Edit Unit Advanced Adjust Reference Screen This is only applicable on L Band modems and allows compensation for ageing affects It allow s the frequency of the internal 10MHz reference to be adjusted by using the up and dow n arrow...

Page 94: ...signed any desired name using the alphanumeric keypad Recall This allow s a previously stored configuration to be selected and used in place of the current configuration Erase This option allow s configuration memories to be deleted Note that one configuration memory namely LOAD_DEFAULTS alw ays exists When this is recalled then it has the effect of setting the modem back to the factory defaults A...

Page 95: ...ot period before the temporary SAFfeatures time out Monitor This provides access to transmit receive and unit information that is continually updated including the data rates at different points in the transmit and receive processing chain pow er supply levels modem internal temperature and modem loopback status Alarms This provides access to transmit receive and unit current alarm information Not...

Page 96: ...ning remote signals traveling in the direction of the terrestrial interface back towards the satellite interface BER test This feature provides the ability to inject a test pattern into the modem and to monitor the results using the modem s internal Pseudo Random Bit Sequence PRBS Bit Error Rate BER Tester MPEG2 Transport Stream 188 byte packets excluding the sync byte in the header are generated ...

Page 97: ... 7 76 Options Off Interface local Interface local and remote Framer deframer local RS local FEC local IF local Factory default Off Description Allow s a number of Loopbacks to be selected to aid fault diagnosis and resolution of system level problems ...

Page 98: ... results and allows single errors to be injected or the test to be restarted The internal BER tester is available as a SAF option It provides the ability to monitor the BER of the Rx satellite path It allows a test pattern to be sent and received Note that the follow ing BER test screens apply to Tx and Rx but only the Tx screens are show n Test BER Tx Mode Screen Options Off Sw itches the BER tes...

Page 99: ...he Errors field indicates the total number of bits received in error since the test started The BER field indicates Bit Error Rate computed from the number of bit errors divided by the number of bits received Pressing the Down arrow key at any point displays the follow ing screen The Inject error option can be used to inject a single error into the bit pattern w hich has the effect of incrementing...

Page 100: ...k w ithout the operator s permission Test Modulator RF Alternate 1 0 Screen Factory default Off Description Selecting Tx alt 1 0 causes an alternating 1 0 1 0 pattern to be fed to the modulator at the symbol rate This causes two discrete frequencies to be generated spaced at the symbol rate about the suppressed carrier This is useful for evaluating the carrier suppression of the modulator but shou...

Page 101: ...explains only those features of the web interface that are different 7 4 1 Logging In and Out The philosophy behind user levels login and control of the modem is explained in Section 7 1 To connect to the w eb server from a w eb browser ensure a suitable Ethernet cable is connected into the Remote M C RJ45 socket on the rear of the modem and from the modem front panel enter under Edit Unit M C IP ...

Page 102: ...een On successfully logging in the user w ill be presented w ith the follow ing screen Web Server Welcome Screen The view only access message may be displayed depending upon login conditions On entering the w eb site the user w ill then be presented w ith the follow ing status screen ...

Page 103: ...resent and provides basic modem information The Help area is used to provide help on context sensitive features it is triggered by moving the cursor over an item such as a display label w hich is then described w ithin the Help box The LED mimic on the left of the screen depicts the modem front panel LED indicators A typical Edit screen that demonstrates the most common types of user entry is show...

Page 104: ...m and as an oscilloscope to view the I and Q channel Rx signal constellation Other graphs provide time based logging for up to one month of key modem parameters such as Rx Pow er Level Eb No etc In fact all of the information presented on the graphs can be retrieved from the modem in order to for example generate monthly Quality of Service reports regarding modem availability and operational perfo...

Page 105: ... be used for checking for adjacent interfering carriers In wide mode the demodulator is reprogrammed with different values to normal operation and consequently the wide mode of operation is only available as a special test mode since it would otherwise interfere with any traffic In super wide view which can be used without interfering w ith traffic the spectrum w idth is set to 50MHz to allow all ...

Page 106: ...kips otherw ise seen as unw anted rotations w ithin the constellation Signal Constellation Graph 7 4 2 3 Time based Graphs A number of time based graphs can be displayed These update approximately once per second but actual refresh rate will depend upon the Ethernet connection speed and channel loading Graphical values are stored for 31 calendar days or until the modem is pow ered dow n The record...

Page 107: ... The modem final user BER after error correction estimated from the FEC The modem actual BER from the internal BER Tester available as a Test function The transmit pow er levelw hile under AUPC control Modem internal temperature Receive frequency offset from centre frequency Similarly IP traffic information IP packets dropped packets and errors can also be displayed for both Tx and Rx These graphs...

Page 108: ... these later How ever the web interface also allows these memories to be uploaded and dow nloaded to and from a PC This in turn allow s configurations to be shared by different modems This offers a convenient time saving method of configuring a batch of modems by generating a configuration on one dow nloading it to a PC and then uploading it to other modems in turn The screens for dow nloading and...

Page 109: ...Vision Series Installation and Operating Handbook 7 88 Configuration Memory Download Screen Configuration Memory Upload Screen ...

Page 110: ...ets sent from the high priority queue 2 are sent from the medium priority queue and 1 from the low priority queue The modem supports IEEE 802 1q VLAN tagging If Ethernet frames w ith VLAN tags are presented to the modem w hen in bridge mode then these packets w ill be transmitted transparently along w ith the VLAN tags VLAN filtering can also be used w ith point to multipoint topology to separate ...

Page 111: ...tion and therefore a full webpage can take many times the satellite delay to be displayed The Paradise w eb proxy examines w ebpage frames as they pass through the modem and pre fetches all of the content before it is requested It is therefore typically available in cache memory at the modem local to the web browser prior to the browser actually requesting the remaining content The Bridge Filterin...

Page 112: ...on Series Installation and Operating Handbook 7 91 System Log Screen 7 4 6 System Alarms System alarms can be view ed using the View Alarms menu tab An example screen is show n overleaf System Alarms Screen ...

Page 113: ...n the background as show n overleaf On line Installation and Operation Handbook 7 4 8 SAF Screen The features available can be seen from the View SAF menu screen This screen also allow s a test shot to be started or stopped If a 10 day test shot is active the w ord Demo is added to the SAF label of each additional feature started by the test shot and the text colour is changed to amber Permanent f...

Page 114: ...the modem are documented in the Remote M C Specification for Vision Series Modems The SNMP configuration screen found under the Edit Unit M C Advanced menu tab is show n overleaf The community names represent passwords that must be present in each SNMP read or write requests in order for the commands to be executed The source identifier fields can be used to define which source IP addresses read w...

Page 115: ...om The softw are should be dow nloaded from the w eb site to a temporary location that can be accessed by the modem Feedback on the progress of the update w hich typically takes around 10 minutes depending on the speed of the link is provided on the screen The modem w ill be automatically restarted w hen the upgrade is complete Note that a remote modem can be upgraded over the satellite link by se...

Page 116: ... be upgraded w ith The upgrade w ill then proceed as normal and the modem w ill restart w hen the operation is complete If the basic web page does not display properly then it may be necessary to flush the browser cache in Internet Explorer this is achieved by going to the menu option tab Tools Internet Options General and selecting Delete Files from the Temporary Internet Files options A software...

Page 117: ...otected Mode OFF on the PC Remote Software Upgrade Screen 7 4 11 BER Tester The internal PRBS BER Tester allows pseudo random bit patterns to be injected into the traffic and the BER results to be monitored This feature is described in Section 7 3 5 The w eb set up of this facility is performed using similar controls to those specified for the local user interface in Section 7 3 5 The BER test res...

Page 118: ...he test started The Bit rate field indicates the number of bits received in the last second The Bit errors field indicates the total number of error bits detected since the test started The Bit error rate field indicates the number of bit errors in relation to the number of bits received The Start Restart button can be used to start or restart the BER test including clearing all of the error count...

Page 119: ...Unit Tx and Rx faults and w arnings All configuration memories Instantaneous spectrum data Instantaneous constellation data Instantaneous PRBS BER test results The information is sent in CSV format w hich allows the data to be instantly copied into any spreadsheet fromw here it can be view ed in a number of formats e g as a graph or a table and from w hich a report can be generated in a few second...

Page 120: ...account and open it To import the constellation data into a spreadsheet program Microsoft Excel is used in this example do the follow ing Double click on the email attachment constellation csv and open it this should automatically start Excel if not save the attachment and then open it directly from w ithin Excel Within Excel highlight the A and B columns Select the Chart Wizard from the toolbar o...

Page 121: ...ture to request technical support On the w eb user interface select the View tab follow ed by Support The support configuration screen is show n over the page Complete the contact details and type your request and send the email The email is automatically sent to Paradise Datacom s technical support team Note that the SMTP email server address has to be entered on the email configuration screen fo...

Page 122: ...mer Technical Support Enquiry Screen 7 4 13 IP Static Routes If you w ish to w ork w ith more than one subnet the w eb user interface allows up to 64 static routes to be added The static route configuration screen found under the Edit Unit Network menu tab is show n over the page ...

Page 123: ... 3 bytes Ethernet header compression is also supported in addition and this reduces 14 bytes of Ethernet frame dow n to typically 1 byte Overall savings from compression from both types of compression e g for a G 729 voice stream can be as high as 60 It is w idely acknow ledged that ROHC is the most suitable available header compression technology for use over satellite and outperforms older techn...

Page 124: ...follow ing w ill be compressed w hen the feature is enabled The Ethernet header w ill be compressed on every frame IP and UDP headers w ill be compressed w hen the IP payload contains a UDP packet The IP header can only be compressed w hen the packet contains a UDP transport layer payload IP UDP and RTP headers w hen the IP payload contains both a UDP and RTP packet Header Compression Configuratio...

Page 125: ...a DCE Data Communications Equipment The internal clock is provided by the modem to the DTE Data Terminal Equipment via the ETC External Transmit Clock signal line for using in clocking the data through to the modem It is important that the terrestrial data coming into the modem uses the ETC clock looped back through the DTE equipment Modem Tx Data Interface FIFO DDS PLL VCXO TCXO TxData TxClock TT...

Page 126: ...ock and data appear on RT Receive Timing and RD Receive Data respectively The station clock input can be configured to provide a clock just for Rx path processing or it can be used to replace the modem s internal 10MHz clock used for all internal processing The station clock frequency need not equal the modem s internal 10MHz clock frequency when it is being used to provide just Rx path clocking i...

Page 127: ...replacement for a single unit with all connectors and pin assignments remaining the same A particular advantage of this arrangement is that one unit of the pair may be replaced w ithout interrupting traffic To enable the parallel operation of all the interfaces the off line unit provides no terminating load enabling the correct impedance to be maintained even w hen the tw o modems are connected in...

Page 128: ... operational unit 8 2 5 1 for 1 Setup Procedure To set 1 for 1 operation betw een tw o modems the follow ing steps need to be performed 1 Check that both modems have the same software issue 2 Connect a 4 w ay screened cable betw een the 9 pin 1 for1 connectors on the tw o modems this forces one modem to adopt the 1 1 standby mode 3 Connect the data interfaces in parallel and configure the tw o uni...

Page 129: ...allow ing feature evaluation Demonstration Mode can be used to test compatibility w ith other equipment and allows rapid substitution of equipment in a crisis To enable one or more features permanently referred to as Permanent Mode a modem specific feature code needs to be obtained from Paradise Datacom The code is tied to the modem serial number available via the user interfaces and on the back p...

Page 130: ...n as Es No Because Carrier Noise is a ratio of tw o pow ers measured in the same bandw idth the resolution bandw idth of the analyser this is the same as Es No Within the demodulator each symbol is converted back into transmitted bits For BPSK each symbol represents 1 transmitted bit for QPSK or OQPSK each symbol represents 2 transmitted bits for 8PSK each symbol represents 3 transmitted bits and ...

Page 131: ...g has no effect on bandw idth and is totally ignored Practical Implications of Displayed Eb No Practically this means the follow ing For a constant Tx Pow er you will get the same displayed Eb No w hatever the settings of Modulation Inner FEC and Outer FEC as the Eb No display compensates for these parameters The bandw idth w ill vary and so w ill the Carrier Noise at the input of the demod but th...

Page 132: ...Vision Series Installation and Operating Handbook 8 8 Eb NoExplanatory Diagram ...

Page 133: ... 25dB 7 8 Rate 0 58dB 2 3 Rate 1 76dB Adjust for RS Codec n k t 126 112 7 0 51dB 219 201 9 0 37dB 225 205 10 0 40dB 5 0 5 2 5 4 5 6 5 8 3 35 3 64 3 92 4 20 4 47 6 0 6 2 6 4 6 6 6 8 4 74 5 01 5 27 5 53 5 78 7 0 7 2 7 4 7 6 7 8 6 03 6 28 6 53 6 77 7 01 8 0 8 2 8 4 8 6 8 8 7 25 7 49 7 72 7 95 8 19 9 0 9 2 9 4 9 6 9 8 8 42 8 64 8 87 9 10 9 32 10 0 10 5 11 0 11 5 12 0 12 5 13 0 13 5 14 0 14 5 9 54 10 0...

Page 134: ...5 16 0 16 5 17 0 17 5 18 0 18 5 19 0 19 5 15 38 15 89 16 40 16 91 17 42 17 93 18 44 18 94 19 45 20 C N N error 0 04dB Example 8SPK with 2 3 Rate TCM FEC RS 219 201 9 C N N 8 4dB C N 7 72dB 8PSK so subtract 4 77dB 2 3 Rate FEC so add 1 76dB RS Code 219 201 9 so add 0 37dB Measure Look up Calculate Eb No C N 2 64dB ...

Page 135: ...k segment in order to avoid creating bridging loops w here Ethernet frames circulate endlessly using up valuable bandw idth The bridge therefore maintains information on how to forward frames based on replies that are received from each device The modem software supports several types of Ethernet netw ork topology Firstly there is a point to point mode for when one modem is transmitting to and rec...

Page 136: ... composiste received signal leaving just the desired signal This is depicted in the diagrams below Frequency Re use by Overlaying Carriers The Paired Carrier processing in the modem cancels the unw anted signal in the composite received signal leaving only the desired signal as show n in the diagram overleaf The signal cancellation algorithm estimates and compensates for gain frequency phase and d...

Page 137: ...ntenna sizes and use similar pow er levels at each end of the link whereas asymmetric links w il typically use a larger antenna at one end of the link and a smaller antenna at the other end w ith dissimilar pow er levels In the asymmetric case the system can be designed to require signal cancellation at only one end of the link w ith the unw anted signal at the other end being reduced to a level c...

Page 138: ...el multiple carriers appearing w ithin the cancellation bandw idth Q Can Paired Carrier handle asymmetric carriers that is carriers with different data rates and or different symbol rates on transmit and receive A Yes the Paired Carrier can handle asymmetric carriers The transmit and receive parameters are totally independent Q My transmit and receive carrier levels off satellite are different can...

Page 139: ...erequisites exist for using Paired Carrier A It requires a full duplex link w here you must be able to receive your own uplink signal off satellite It w orks only with bent pipe transponders w here there is no demodulation remodulation or cross strapping betw een transponders The transponder must do no more than filter frequency convert and amplify the signal Q Is it difficult and time consuming t...

Page 140: ...ommands and responses w hich are incorporated into the message payload An Ethernet interface that can be used to send and receive PUP messages or Simple Netw ork Management Protocol SNMP messages This interface can be used in severalw ays Firstly a generic user entry application such as Telnet can be used to automatically send or manually enter PUP commands Secondly PUP messages can be encapsulate...

Page 141: ...d w ith the terrestrial interfaces The IP interface requires separate but parallel connections to the netw ork using cross over IP cables If using an IP traffic interface card then either cable type will suffice as the card is autosensing If using an IP traffic interface card connect the IP cables to either port on the interface card Please note that the 1 1 controller cable must be of type M3471 ...

Page 142: ...on The P3714 IP Traffic card provides 2 RJ45 10 100 1000 BaseT Ethernet ports The IP Traffic port on the base modem is redundant and should not be used The IP Traffic card does not replace the base modem M C Ethernet interface w hich should continue to be used for remotely configuring the modem over Ethernet ASI interface The DVB Asynchronous Serial Interface ASI interface provided by the P3710 Qu...

Page 143: ...ite Modems Connector type 9 pin D female Pin Signal name Direction Name RS485 Name RS232 SA Bus Paradise 1 Shield Gnd Shield Shield Gnd Shield Gnd 2 SRR 3 Master B to modem SSD RX B 4 Slave B from modem SRD TX B 5 Shield Gnd SG Shield Gnd Shield Gnd 6 Slave A from modem RC TX A Tx data 7 SRS 8 SCS 9 Master A to modem SC RX A Rx data Pins 1 and 5 are both grounded on the modem ie Shield and Ground ...

Page 144: ... 1 Unit 2 Pin 1 Screen Pin 1 circuit ground Pin 2 Pin 3 On Line signal 2 1 Pin 3 Pin 2 On Line signal 1 2 Pin 6 Pin 7 Fail signal 2 1 Pin 7 Pin 6 Fail signal 1 2 Keep this lead as short as practical and ensure it is screened to prevent spurious changeovers by noise induced in these high impedance signal leads Refer to the earlier section on 1 FOR 1 sw itching for details of 1 FOR 1 operation A sta...

Page 145: ...nhibit 8 Buffered direct AGC voltage This may be used as an antenna pointing signal w hen the demod is unlocked It responds to composite pow er in approximately a 2MHz bandw idth around the nominal Rx carrier frequency 14 Not connected 15 Ground To externally inhibit the Transmit carrier either apply a TTL CMOS low signal to pin 7 or short pin 7 to ground for example w ith an external relay closur...

Page 146: ...te 1 1 Ground RS232 Serial port reserved for future use 12 Serial Input RS232 port 5 Serial Output RS232 port 13 Ground Analog Rx constellation monitor Rx signal quality 14 Rx I channel 7 Rx Q channel 15 Rx symbol clock 13 Ground RS422 Differential Station Clock Input 4 Station Clock a 11 Station Clock b 13 Ground RX Constellation Monitor Port To display the receive constellation on an oscilloscop...

Page 147: ...alanced 75Ω station clock BNC connector Standard Lead A constellation monitor serial lead part number M1479 is available from Paradise Datacom This lead provides the required connections to a 25 pin D type for a PC connection note that this is currently unused by the modem and three BNCs for connecting to an oscilloscope for the constellation monitor ...

Page 148: ... the table w ill be displayed in full on the w eb user interface and in the system log but may appear in an abbreviated format on the front panel LCD display due to space considerations The acronyms used to define the actions taken on each fault occurring are as follows Actions Relays U Prompt unit fault relay T Prompt traffic fault relay D Deferred alarm relay Actions Other CM Carrier mute TF Tx ...

Page 149: ...ar ning AIS detected on ASI ports TxASIAISAlar m Tx warning Sync loss on ASI ports TxASIMPEGSyncAl arm Tx warning DC bi as on ASI ports TxASIDispAlar m Tx warning Clock error on ASI ports TxASIClockAlar m Tx warning FIFO overflow on ASI ports TxASIOverFlowAl arm Tx warning FIFO underflow on ASI ports TxASIUnderFlowAlarm Tx war ning K28 5 error on ASI ports TxASIK285Alarm Tx warning Sync loss on AS...

Page 150: ... the per missible upper lower limits CM Tx war ning Tx Channel DPLL Unlocked TxChannelDPLLAlar m Consult technical support if this alarm cannot be cleared CM Tx warning Tx data rate outside interface range TxDataRateAlar m Configuration error data rate for terrestrial interface exceeded Tx war ning Tx carrier frequency out of r ange for current symbol rate TxIFFreqAlarm The carrier frequency selec...

Page 151: ...ta rate outside interface range RxDataRateAlarm Configuration error data rate for terrestrial interface exceeded Rx warni ng The receive Eb No is worse than the user threshold set for the deferred al arm RxEbNoBelowThresholdAl ar m D Rx warni ng Rx symbol rate outside range RxSymRateAlar m The modems current configuration exceeds the permissible symbol rate check the configuration Rx warni ng Sele...

Page 152: ...alise the hardware Power the modem down and backup to see whether this cl ears the probl em U TF RF CM Unit fault R x backup clock has failed BackupRxClockFailureAlar m The clock used when the selected R xclock fails has also failed Contact technical support for advice U RF Unit fault Communications with the BUC have failed Check connections BUCCommunicationsFailureAlar m Unable to communicate wit...

Page 153: ...rning Both ASI ports set to Txor Rx ASIConfigAlarm In single stream modes of operation the ASI interface pr ovides a single i nput and output but has been configured to provide either two inputs or two outputs 12 7 Start up problems Fault Text Notes Relays Other Unit fails to boot due to an invalid configuration but passes the initial built in test proceeding to the initialising screen Remove the ...

Page 154: ...0Msps User Traffic Data Rate Resolution 1bps Note The combination of FEC Rate Modulation scheme and Satellite Overhead limits the Traffic Data Rate Range in all modes DVB S QPSK Rates 1 2 2 3 3 4 5 6 7 8 DVB DSNG 8PSK 16QAM Rates 2 3 5 6 8 9 3 4 7 8 DVB S2 QPSK Rates 1 4 1 3 2 5 1 2 3 5 2 3 3 4 4 5 5 6 8 9 9 10 8PSK Rates 3 5 2 3 3 4 5 6 8 9 9 10 16APSK Rates 2 3 3 4 4 5 5 6 8 9 9 10 IF Connector ...

Page 155: ...1 1 times Symbol Rate α 0 20 Recommended Channel Spacing 1 4 times Symbol Rate α 0 35 1 27 times Symbol Rate α 0 25 1 2 times Symbol Rate α 0 20 Phase Accuracy 2º maximum Amplitude Accuracy 0 2dB maximum Carrier Suppression 30dBc minimum Output Phase Noise As IESS 308 nominally 3dB better IF Output Frequency Stability 1ppm yr L band Output Frequency Stability 4E 8 yr IF Harmonics Better than 55dBc...

Page 156: ...ring DVB S2 and Intelsat IESS compliant α 0 35 α 0 25 α 0 20 Performance Monitoring Measured Eb No range 0 15dB 0 2dB Measured Frequency Offset 100Hz resolution Wanted signal level strength indicator centred on the middle of the Rx Input range AGC Output Buffered direct AGC output for antenna tracking etc 13 4 Clocking and Buffering Specifications Parameter Vision Series Modem Clock Integrity Freq...

Page 157: ...l reference if the station reference fails 13 5 BERT Option Specifications Parameter Vision Series Modem BER Channel The BERT may operate through main traffic channel Test Patterns MPEG2 Transport Stream packets w ith payload replaced by pseudo random test pattern Results Display of error count and average BER Autolog Automatic logging of average BER and other parameters at regular intervals 13 6 ...

Page 158: ...Vision Series Installation and Operating Handbook 13 5 Modulation FEC FEC rate de facto Min data rate kbps Max data rate Mbps ...

Page 159: ...into FLASH memory via Ethernet port w ith modem remaining in equipment rack Configuration Memories 20 configurations can be stored and recalled from the front panel or remote M C Memories can be labeled w ith text string to aid identification User Interface Clear and intuitive operator interface w ith plain English dialogue other languages supported Graphic display backlit high contrast w ide angl...

Page 160: ... 0 4A at 240V 47 63Hz Fused IEC connector live and neutral fused 48 Volts DC option Safety EN60950 1 EMC EN55022 Class B Emissions EN55082 Part 1 Immunity Environmental Operating Temperature Range 0 50ºC Mains data AC Mains inrush surge current at pow er up 25A 250V Modem uses 3 15A slow blow fuses in all cases Maximum pow er consumption fully loaded is approx 105W Earth leakage current is approx ...

Page 161: ... Mesh netw ork support Can be operated in standalone 1 1 or 1 N redundancy configuration DHCP Dynamic Host Control Protocol allows modem IP address to be allocated dynamically from an external DHCP netw ork server IEEE 802 1p q IEEE 802 1p Quality of Service supporting the choice of strict priority queuing or fair w eighting queuing TCP Acceleration Supports TCP acceleration w ith maximum throughp...

Page 162: ...t 24V DC 6A output 180W to BUC viaTx IFL 48V DC input 48V DC 3 5A output 180W to BUC v ia Tx IFL 48V DC input 24V DC 6A output 180W to BUC viaTx IFL LNB Pow er 15 24V 0 5A DC to LNB via Rx IFL standard FSK Control Option Requires a BUC Pow er Supply to be fitted Allow s monitor control of a compatible BUC from the Modem via the IFL 10MHz Reference via IFL Option Requires the High Stability 4E 8 yr...

Page 163: ...al Satellite News Gathering DVB Digital Video Broadcast DVB Digital Video Broadcast ESC Engineering Services Channel FEC Forw ard Error Correction LCD Liquid Crystal Display M C Monitor and Control MIB SNMP Management Information Base Mux Multiplexer PCB Printed Circuit Board PUP Paradise Universal Protocol PLL Phase Locked Loop PRBS Pseudo Random Bit Sequence QPSK Quaternary Phase Shift Keying RB...

Page 164: ...ipment for repair or upgrade In summary 1 Ensure the equipment really does have a fault 2 Write an explicit fault report including w hat appears to be wrong the circumstances under w hich it occurs and w hat other equipment is involved 3 Provide an official Purchase Order to cover the cost of any repairs or sign disclaimer on the Fault Report page 4 Outside of the UK contact either the UK or US Pa...

Search results

Summary of Contents for Vision Series

Reviews:

Related manuals for Vision Series

Brands by name

Popular brands

Paradise Datacom Vision Series, Installation And Operating Handbook

Search results

Summary of Contents for Vision Series

Reviews:

Related manuals for Vision Series

Brands by name

Popular brands