Paradise Datacom Vision Installation And Operating Handbook

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Issue 8.0.13, 1 July 2009

2009

EN 55022 - Class B

EN 55024 EN 60950

Paradise Dataco m Ltd. Paradise Dataco m 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

Vision Series Installat ion and Operating Handbook

Table of Contents

Chapter 1 Welcome.....................................................................................................1-1

Chapter 2 About This Handbook...............................................................................2-1

2.1 Conventions ............................................................................................................2-1

2.2 Trademarks .............................................................................................................2-1

2.3 Disclaimer................................................................................................................2-1

2.4 GNU General Public Licence..................................................................................2-1

Chapter 3 Safety Information ....................................................................................3-1

3.1 Safety ......................................................................................................................3-1

3.2 Environmental .........................................................................................................3-1

3.3 Installation ...............................................................................................................3-1

Chapter 4 Electromagnetic Compatibility................................................................4-1

Chapter 5 Installation.................................................................................................5-1

5.1 Unpacking ...............................................................................................................5-1

5.2 Visual Inspection .....................................................................................................5-1

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 Opt ion 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 Opt ion 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 Pan el ..............................................................................................................6-9

Chapter 7 User Interfaces ..........................................................................................7-1

7.1 User Na mes, Passw ords and Modem Contro l .......................................................7-1

7.1.1

Local Mode......................................................................................................7-1

7.1.2

Giveaw ay Mode ..............................................................................................7-1

7.1.3

Takeaw ay Mode..............................................................................................7-2

7.2 Front Panel Interface ..............................................................................................7-3

7.2.1

Keypad Operation ...........................................................................................7-3

7.2.2

LCD Screen Layout.........................................................................................7-5

7.3 Front Panel Menu Structure....................................................................................7-6

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7.3.1

Ma in Menu.......................................................................................................7-6

7.3.2

Status Menu....................................................................................................7-7

7.3.3

Edit Menu ......................................................................................................7-12

7.3.4

View Menu.....................................................................................................7-74

7.3.5

Test Menu .....................................................................................................7-75

7.4 Web User Interface ...............................................................................................7-80

7.4.1

Logging In and Out .......................................................................................7-80

7.4.2

Graphing Features ........................................................................................7-83

7.4.3

Configuration Me mories ................................................................................7-87

7.4.4

Interface Configurations ................................................................................7-89

7.4.5

System Log ...................................................................................................7-90

7.4.6

System Alarms ..............................................................................................7-91

7.4.7

On-line Installat ion and Operation Handbook ..............................................7-92

7.4.8

SAF Screen...................................................................................................7-92

7.4.9

SNMP Configuration .....................................................................................7-93

7.4.10 Remot e Softw are Upgrade ...........................................................................7-94

7.4.11 BER Tester....................................................................................................7-96

7.4.12 Mod em Email Function .................................................................................7-98

7.4.13 IP Static 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

Man ual 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 On Carrier/No ise and Eb/No Measurements ............................................8-6

8.6 Et hernet Bridge .....................................................................................................8-11

8.7 Paired Carrier ........................................................................................................8-12

Chapter 9 Remote Control Protocol.........................................................................9-1

Chapter 10 Data Interfaces ........................................................................................10-1

Chapter 11 Connector Pinouts ..................................................................................11-1

Chapter 12 Fault Messages.......................................................................................12-1

12.1 Transmit Faults .....................................................................................................12-2

12.2 Transmit Warnings................................................................................................12-2

12.3 Receive Faults ......................................................................................................12-4

12.4 Receive Warnings.................................................................................................12-4

12.5 Unit Fa ults .............................................................................................................12-5

12.6 Unit Warnings........................................................................................................12-6

Vision Series Installat ion and Operating Handbook

12.7 Start up problems ..................................................................................................12-6

Chapter 13 Specification Summary..........................................................................13-1

13.1 Common Main Specifications ...............................................................................13-1

13.2 Tx Modulator Specifications..................................................................................13-2

13.3 Rx De modulator Specifications.............................................................................13-3

13.4 Clocking and Buffering Specifications ..................................................................13-3

13.5 BERT Option Specifications .................................................................................13-4

13.6 Data Rat e Specifications.......................................................................................13-4

13.7 Traf f ic 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 Gloss ary...................................................................................................14-1

Chapter 15 Customer Technical Support.................................................................15-1

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Chapter 1 Welcome

Parad ise Dataco m is proud to present its next-generation, state-of-the-art Vision Series of satellite DVB modems. Its innovative design incorporates a novel architecture that uses upgradeable programmable logic for all major modem functions, creating a flexible mod em platform easily adapted t o future demands. It provides a rich feature set and flexibility of configuration, allow ing you to purchase only what you need initia lly and then enable further features in the f ield at a later date. It sets new levels of usability by adopting mu ltiple language support on all user interfaces as standard (including English, French, Ger man and Spanish - contact Customer Technical Support for up to date details of other languages that are supported).

The Vision mod em 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 incorporates ViaSat’s patented PCMA technology to overlay transmit and receive carriers in the same space segment reducing satellite bandw idth requirements by up to 50%. It is used in addition to, not instead of, other bandw idth saving techniques.

This handbook w ill guide you through the process of installing and using your Vision Series Satellite Modem. It covers all models including IF and L-band variants. The Vision Redundancy Sw itch is documented separately – see Installation and Operating Handbook for Quantum, Evolution and Vision Series Redundancy Switches.

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Chapter 2 About This Handbook

2.1 Conventions

This symbol i s intended to alert the user to the presence of voltage levels that constitute a dangerous risk of electric shock a nd serious injury.

This symbol is i ntended to alert the user to the presence of importa nt operating i nstructions critical to correct system function.

2.2 Trademarks

All trademarks used in this handbook are acknow ledged to be the property of their respective ow ners.

2.3 Disclaimer

Although every effort is made to ensure the accuracy and completeness of the information 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 specif ications w ithout prior notice.

2.4 GNU General Public Licence

This product contains softw are source code distributed under the GNU General Public Licence (GPL). Paradise Datacom fully acknow ledges the terms of this licence. If you would like a copy of the GPL source code in this product on a CD, then please send (USD) $15.00 (along w ith a request for the ‘Vision Series Satellite Mod em GPL Source Code CD’) to Paradise Datacom to cover the cost of preparing and mailing the CD to you.

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Chapter 3 Safety Information

PLEASE READ THE FOLLOWING INFORMATION BEFORE INSTALLATION AND USE.

3.1 Safety

To ensure operator safety this Satellite Modem has been designed to comply w ith the follow ing safety standard:

EN 60950-1 - ‘Safety of Information Technology Equipment’.

Prior to installation and operation, please ensure that the follow ing points are observed.

3.2 Environmental

The equipment is designed to operate in a static 19-inch rack system conforming to IEC 297-2. Operation of the equipment in transportable installations and vehicles equipped with the means of providing a stable environment is permissible. Operation of the equipment on vehicles, ships or aircraft w ithout means of environmen tal conditioning may invalidate the safety compliancy. Please contact Customer Technical Support for further advice. Operation 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

• Excessive vibration

• Flammable gases

• Corrosive or explosive atmospheres

3.3 Installation

The equipment is classified in EN 60950-1 as a pluggable equipment Class A for connection to the mains supply (note that a 48V DC version is also available). As such it is provided w ith a mains inlet cord suitable for use in the country of operation. In normal circumstances this will be of an adequate length f or installation in a rack. If the mains cable proves to be too short then any replacement must have a similar type fuse (if fitted) and be manufactured to a similar specification. ( For example, look for HAR, BASEC or HOXXX-X ratings on the cable and the connector ends marked w ith BS1636A (UK free

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plug 13 amp); BSI, V DE, NF-US E, UL, CSA, OVE, CEBEC, NEMKO, DEMKO, SETI, IMQ, SEV and KEMA-KEUR f or the IEC 6 amp free socket. Schuko and North American free plugs must have similar markings.)

The installation of the equipment and the connection to the ma ins supply must be made in compliance w ith local and national w iring regulations f or a Category II ‘impulse overvoltage’ installation. The positioning of the equipment must be such that the mains supply socket outlet for the equipment should be near the e quipment and easily accessible or there should be another suitable means of disconnection from the mains supply.

The equipment is designed to operate f rom a TN-type pow er supply system as specif ied in EN 60950-1 (i.e. a system that has separate earth, line and neutral conductors). The equipment is not designed to operate w ith an IT pow er system that has no direct connection to earth.

This unit has double pole/neutral fusing. To ensure operator sa fety, fuses should always be replaced wi th identical type a nd rating – contact Customer Technical Support for details.

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Chapter 4 Electromagnetic Compatibility

This Satellite Modem has been show n to comply w ith the follow ing standards:

1. Emissions: EN 55022 Class B - ‘Limits and methods of measurement of radio interf erence characteristics of Information Technology Equipment’.

2. Immunity: EN 50024 – ‘Information technology equipment immunity characteristics’.

Extensive testing has been perf ormed to ensure that the unit meets these specifications when configured w ith any or all of its available hardw are options.

To ensure that the modem maintains compliance with electr omagnetic 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 guarantee continuous shielding. The back-shells must comply w ith the requirements of VDE 0871 and FCC 20708, providing at least 40dB of attenuation f rom 30 MHz to 1 GHz. A good quality cable w ith a continuous outer shield, correctly grounded, must be used.

Connections to transmit and receive IF interfaces must be made w ith double-screened coaxial cable (for example, RG223/U).

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Chapter 5 Installation

5.1 Unpacking

Prior to unpacking, inspect the exterior of the shipping container f or any sign of damage during transit. If damage is evident, contact the carrier immed iately and submit a da mage report.

Carefully unpack all items, taking care not to discard packing materials, particularly the mo lded f oam inserts. Should the unit need to be returned to Paradise Dataco m then you should use the original packing carton as it is designed to provide the necessary level of protection during shipme nt.

5.2 Visual Inspection

Once unpacked, visually inspect the contents to ensure all parts are present and that there are no signs of damage.

5.3 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 level can be controlled using the front-panel menus.

5.4 Power Up

Pow er the unit and wait f or it to complete its initialisat ion w hen it w ill display summary status information.

For local use, from the f ront-panel menu, select Main, Edit, All to define a ll para meters prior to operation.

It is also possible to set up the unit from a w eb brow ser (this is described in Section 7.4). When setting up a number of units, it may be preferable to save the configuration settings of one unit and then transfer them to each of the others – this procedure is explained in Section 7.4.3.

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Chapter 6 Introduction

6.1 Overview

The Vision Series satellite modems are designed for operation in a variety of environments (such as ground stations and mobile and fly aw ay terminals) providing a data link betw een geographically distant sites via satellite.

Features include:

• DVB-S (EN 300 421), DVB-DSNG (EN 301 210) and DVB-S2 (EN 302 307) operation ( DVB-S/DSNG to 80Mbps/40Msps; DVB-S2 to 80Mbps/37.5Msps).

• Built- in support for DVB-S2 Constant Coding and Modulation (CCM).

• Multistreaming support for ASI (up to 4 ASI ports) and IP. Ability to f ilter o n PID

number and MAC address. PID mon itor that displays statistics for the different PIDs being transmitted or received.

• Variable Coding and Modulation (VCM) ready! Requires just a software upgrade! Contact Custo mer Technical Support for more details.

• IF f requency range of 50 to 90MHz and 100 to 180MHz.

• L-band frequency range of 950MHz to 1950MHz (option to 2050MHz).

• Support for QPSK, 8PSK, 16QAM and 16APSK modulation schemes.

• Forw ard Error Correction (FEC) options of Viterbi, Trellis Coded Modulation (TCM)

and Low Density Parity Check (L DPC) as part of DVB-S/DSNG/S2.

• Outer FEC options of concatenated Reed-Solomon ( RS) and Bose- ChaudhuriHocquenghem (BCH).

• Terrestrial interface options of ASI and Gigabit Ethernet.

• Front panel display and keypad for local control.

• Remote control through both serial and IP interfaces. IP remote control can be

through a variety of methods includin g: built-in w eb pages served from the mod em’s embedded w eb server to any supported web browser; the Simple Netw ork Management Protocol (SNMP); a standard Telnet protocol session w here the user communicates using a Telnet client ter mina l-emulation program.

• Compact 1U chassis, 405mm deep.

• Rich set of IP features including TCP acceleration, HTTP acceleration, header

compression, Ethernet bridge, DHCP, IEEE 802.1p QOS support, IEEE 802.1q VLAN support, FTP, telnet, SMTP, SNMP, diagnostic graphs, PID filtering, etc. IP encapsulation over DVB supports the use of both the Multi-Protocol Encapsulation (MPE) and Ultra Leightw eight Encapsulation (UL E) standards. It also includes the ability to transcode betw een (MPEG2 TS over) ASI and (MPEG2 TS over) IP.

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6.2 Hardware Options

A single interf ace position is available that supports the follow ing options.

6.2.1 Quad ASI Option Card

The Quad ASI option card (part number P3710) provides four ports (BNC connectors) that are independently configurable as inputs or outputs. Note that in DVB-S2 CCM mod e, only a single input and output can be used unless the optional multistreaming SAF feature has been purschased – the mulstistreaming feature can be used in all DVB mod es i.e. DVB-S, DVB-DS NG and DVB-S2.

6.2.2 IP Traffic Option Car d

The base modem supports Ethernet M&C interface only. In order to pass traffic over Et hernet, it is necessary to fit the IP Traffic option card (part number P3714).

This provides tw o 10/100/1000 (GigE) BaseT Ethernet connectors and supports a number of f eatures including:

1. Packet handling capability of up to 50000 packets per second.

2. Support for Mu lti-Protocol Encapsulation ( MPE) and Ultra Leightw eight Encapsulation (ULE) of Ethernet frames over DVB.

3. TCP acceleration up to 80Mbps w ith support for up to 10000 concurrent TCP connections. Typical satellite bandw idth utilization w ith acceleration sw itched on is around 90%.

4. HTTP acceleration, w hich dow nloads 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 throug hput rates up to 29000 packets per second one-way, 22000 packets per second tw o-way. Ethernet headers are typically reduced from 14 bytes to one byte and IP/ UDP headers are typically reduced from 28 bytes to betw een one and three.

6. Support for Ethernet point-to-point and point-to-multipoint bridging. All netw ork topologies (including star, mesh and partial mesh) are supported. Transmission can be unicast, mu lticast or bidirectional.

7. Quality of Service support (IEEE 802.1p) allow ing packet prioritisation.

8. VLAN tagging (IEEE 802.1q) supporting the filtering of traffic streams according to their VLAN identifier. This can be used in point-to-multipoint operation to filter just the required packets at any particular re mote modem.

9. Web page real-time d iagnostic graphs that display Tx/Rx throughput (pps and bps), dropped packets, errored packets, etc. f or both terrestrial and satellite interf aces.

10. PID filtering to allow particular MPEG2 TS streams to be pulled off at the demodulator.

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11. Transcoding betw een ASI and IP interfaces (allow ing MPEG2 TS packets to be transmitted on one interf ace and received on the other, interchangeably).

New IP f eatures available as softw are upgrades are constantly in development – please contact 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 output

D.C. in/D.C. out

P3539 +48V input, 180W 48V output

D.C. in/D.C. out

Optional BUC Power Supplies

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The follow ing table show s w hat BUC PSUs are suitable f or a range of available BUC types.

PSU Required Paradise ODU PSU

Manufacturer & BUC Type

Voltage Wattage Current 24V 48V

24V 72 3A

P3532 -

Terrasat 5W C-band IBUC

48V 72 1.5A

- P3531

24V 108 4.5A

P3536 -

Terrasat 10W C-band IBUC

48V 96 2A

- P3535

24V 72 3A

P3532 -

Terrasat 4W Ku-band IBUC

48V 72 1.5A

- P3531

24V 120 5A

P3536 -

Terrasat 8W Ku-band IBUC

48V 120 2.5A

- P3535

NJR 1W C-band 5665 & 5666

24V 30W -

P3532 -

NJR 2W C-band 5667 & 5668 24V 37.5W -

P3532 -

NJR 5W C-band 5669 & 5670 24V 55W -

P3532 -

24V 130W -

P3536 -

NJR 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 C-band 6720 48V 130W -

- P3535

24V 80W -

P3532 -

Codan 4W Ku-band 6904

48V 80W -

- P3531

Codan 8W Ku-band 6908 48V 115W -

- P3535

24V 120 5A

P3536 -

Paradise 10W C-band VSAT BUC

48V 120 2.5A

- P3535

24V 144 6A

P3536 -

Paradise 20W C-band VSAT BUC

48V 144 3A

- P3535

24V 111 4.6A

P3536 -

Paradise 8W Ku-band VSAT BUC

48V 111 2.3A

- P3535

24V 120 5A

P3536 -

Paradise 10W Ku-band VSAT BUC

48V 120 2.5A

- P3535

Paradise BUC Pow er Supplies

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6.2.4 L-band FSK/ DC Option Card

An FSK/DC option card (part number P3503) is available f or perf orming FSK communications w ith a BUC. This allows remote monitoring and control of any compatible BUC via a modulated FSK signal on the IFL cable to the BUC. The card also provides a DC supply sw itching capability to the BUC. If FSK communications are not required, then a cheaper option card, namely, the DC Sw itch card (part number P3509) is available.

6.3 Software Options

There are a number of softw are options available as show n in the table below . These can be ordered at the t ime of the original purchase or can be activated in the field. The mechanism that provides access to these f eatures is called Softw are Activated Features (SAF) – the SAF concept (including time-limited free access to all features) 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, DR0, DR1, IRS, VIT, WIF, AUPC, HCP and ESC.

Feature SAF Code

Description

Terrestrial data rate 0 to 80Mbps (98Mbps for ASI)

DR0, D1L,

D1H, DR2, DR3, DR4,

DR5

Enables data rates in the given range.

DVB-S Tx DVBST Enables DVB-S Txoperation. DVB-DSNG Tx DSNGT Enables DVB-DSNG Txoperation. DVB-S2 Tx DVB2T Enables DVB-S2 Tx operation. DVB-S Rx DVBSR Enables DVB-S Rx operation. DVB-DSNG Rx DSNGR En ables DVB-DSNG Rx operation. DVB-S2 Rx DVB2R Enables DVB-S2 Rx operation. DVB IP DVBIP Enables MPE and ULE DVB over IP

encapsulation (requires P3714 IP Traffic card). Without this only MPEG2 TS over IP packets can be processed by the IP Traffic card.

Software Activate d Features

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Feature SAF Code

Description

Viterbi VIT Enables the Viterbi FEC scheme. This is provided

as part of DVB-S.

Intelsat RS IRS Enables the selection of the Intelsat Reed-

Solomon outer FEC. This is provided as part of DVB-S.

Wideband IF WIF Enables selection of IF frequencies betw een 100

and 180MHz. Th is is provided as standard.

8PSK 8PSK Enables selection of 8PSK modulation. This is

provided as part of DVB-DSNG a nd DVB-S2.

16QAM 16QAM Enables selection of the 16QAM FEC scheme.

This is provided as part of DVB-DSNG. Constant Coding and Mod ulation

CCM En ables DVB-S2 CCM mode. This is provided as

part of DVB-S2. CCM Mu ltistreaming CCMM Extension to DVB-S2 CCM mode that allows two

or more ports of the Quad ASI card to be

mu ltiplexed together on transmit and

demultiplexed on receive. It also allow s ASI and

IP streams to be multiplexed/demultiplexed. In

DVB-S/DSNG, this f eature allow s only the Quad

ASI ports to be multiplexed/demultiplexed. PRBS PRBS Enables the internal Pseudo Random Bit

Sequence ( PRBS) Bit Error Rat e (BER) tester. FSK control FSK Enables remote control of a BUC via an FSK

mod ulated signal multiplexed onto the IF cable. TCP acceleration at throughput rates up to 80Mbps

TCP,

TCP16, TCP25,

TCP55

Enables a Perf ormance Enhancing Proxy that

provides acceleration of TCP data over satellite.

Requires P3714 IP Traffic card.

Et hernet brouting BRT Enables Ethernet brouting function (w hich

supports IP traffic point-to-multipoint operat ion

and the use of an indirect return path). Provided

as standard. TCM TCM Enables the TCM FEC scheme. This is provided

as part of DVB-DSNG. Header compression HCP Enables Ethernet header compression. Requires

P3714 IP Traff ic card. Header compression HCP2 Enables IP and UDP packet header compression.

Requires P3714 IP Traffic card. Web Acceleration WEB En ables accelerated brow sing using HTTP.

Provided free w ith the TCP acceleration feature.

Software Activate d Features (continue d)

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6.4 Front Panel

Modem Front Panel

The front panel co mprises:

• LEDs (light emitting diodes) that provide basic modem status

• A LCD ( liquid crystal display) display that acts as the main user interf ace

• A keypad for alphanumeric entry and menu selection.

6.4.1 LEDs

The five LEDs display w arning and fault information as show n below .

Off Red Amber Green

Unit Status

Not used Unit fault Not used Unit OK

Rx Traffic

Rx fault or Rx disabled

Not used Not used Rx OK

Tx Traffic

Tx faul t 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 f ormatted to give 3 lines of 40 text characters and is highly legible even in strong ambient light. The right hand side of the display is reserved for icons that indicate status information pertinent to keypad op eration. These icons are listed below . The contrast is adjustable and the backlight can be sw itched off or on.

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Local (front panel) control LOC

Remot e control REM

Keyboard locked



Help screen

Numeric entry mode 123

Alphabetic entry mode abc

Mod em is on a Tx Edit screen Tx

Mod em is on an Rx Ed it screen Rx

Front Pane l 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

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6.5 Rear Panel

The rear panel, show n below , provides a full set of terrestrial and satellite data interfaces.

Modem Rear Pane l

Full connector pinouts are given in Chapter 11. From lef t to right, the rear panel consists of :

IEC Mains Power Connector/Voltage Selector/Fuse The modem is designed to operate from a ma ins AC supply of 100-240V (-10%/+6%, i.e. 90V to 254V at the connector), 1 - 0.4A, 47 to 63Hz. The IEC connector incorporates tw o fuses, independently f using both live and neutral lines. Access to the fuses is provided by a slide-out tray. Both fuses are standard 20mm type, rated T3.15A, of the slow-blow (timedelay) type. ALWAYS REPLACE THE FUSE WITH ONE OF THE SAME TYPE AND RATING.

Chassis Ground Stud 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 level can 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 f rom –5dBm to –30dBm.

Alarms and AGC Connector

This is a 15-pin male 'D' type connector that provides access to the four form `C' relay contacts that indicate alarm conditions. There is also an AGC output.

The alarm relays have the f ollowing default definitions:

Unit Fault: A unit fault exists, i.e. an equipment failure.

Tx Traffic Prompt: Tx traffic fault exists.

Rx Traffic Prompt: Rx traffic f ault exists.

Deferred Alarm: One of the follow ing conditions exists:

• The receive BER is greater than the user defined threshold.

• The receive Eb/No is low er than the user def ined threshold.

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Async ESC Connector

This is a 15-pin `D` f emale connector. The I, Q and symbol clock outputs are used to monitor the receive constellation (allow ing received signal quality to be monitored on an oscilloscope). This connector also provides the input port for an RS422-compatible Station Clock. The connector name is historical and no ESC channel is actually available as part of the satellite service.

On-line LED

This LED mirrors the front panel Tx Carrier LED, so that from the rear of the equip ment the operator can tell if the carrier is off and which unit of a 1:1 pair is the offline unit.

Terrestrial Interface Connectors

Although there are tw o terrestrial interface connector positions, only one interface card can be fitted at any one time. Supported interface cards are Quad ASI and IP Traff ic.

Rx IF Input Option

This is a BNC f emale connector and can be used in either 50Ω or 75Ω-impedance mode. The carrier signal level presented at the input of the modem should be in the range -60dBm to -30dBm. A level of -45dBm is recommended. The maximum composite pow er level that should be applied to this port is 30dB above the desired carrier, up to a maximum of 0dBm.

Rx L-Band Input Option

This is a N type fema le connector of 50 Ω impedance. The carrier signal level presented at the input of the modem should be in the range -20dBm to -70dBm. A level of -45dBm is recommended. The maximum comp osite pow er level that should be app lied 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 draw s 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-for-1 redundancy-controller that connects to the corresponding port of another modem via a 9-pin male ' D' type connector. A 1:1 redundancy system requires two modems, a 1:1 control cable betw een the two redundancy connectors, a data split (`Y`) cable and passive splitters/combiners for the IF ports. An overview of 1-for-1 operation is provided in Section 8.2.

Remote M&C Connector This is a 9-pin female 'D' type connector. The modem supports the Paradise Universal Protocol (PUP) as specified in the document ‘Remote M&C Specification for Vision Series Satellite Modems’. The electrical interf ace can be selected between RS232 (for direct-toPC applications) and RS485 (for multidrop applications).

Etherne t IP and M&C Connectors There are tw o RJ45 auto-sensing 10/100Mbps Ethernet connections. The base modem IP Traff ic Ethernet port is unused on the Vision modem ( IP traf fic over satellite requires the P3714 IP Traff ic option card). The remote M&C Ethernet port supports both half-duplex and full-duplex operation. M&C control can be via the Simple Netw ork Management Protocol (SNMP), an embedded w eb server that sends w eb pages to a w eb browser, a Telnet-style

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terminal emulation application or via TCP packets that encapsulate Paradise Universal Protocol (PUP) commands.

An M&C IP address and subnet mask may be set in the modem. Note that the modem is not conf igured for auto-sense of the cable type and consequently either a straight or crossover (patch) cable may be required, depending on the equipment being connected (typically a straight cable is required w hen connecting direct to a PC and a crossover cable is required w hen connecting to a router or switch).

Station Clock This connector is a 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 interf ace levels can be applied to the A sync ESC connector. Either signal can be used by the modem as a reference f or the receive output clock (the Station Clock does not have to be the same rate as the data as an internal PLL converts between rates). In addition, if the Rx Clocking is set to use the Station Clock and the Tx Clocking is set to Rx, t hen the Station Clock also sources the internally generated Tx Clock (Tx and Rx data rates are independent). If a 10MHz signal is applied, this signal may also be used in place of the internal reference f or the Tx and Rx IF synthesisers.

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Chapter 7 User Interfaces

The mod em has the follow ing user interf aces:

• A built-in local user interf ace provided via the modem front panel.

• A built-in remote w eb user interf ace that provides w eb pages from the modem (using

a w eb server) to a w eb browser.

There are also serial and Ethernet re mote control interfaces that allow the built-in interf aces to be replaced or supplemented by an alternative means of modem control. These use a proprietary command protocol called the Paradise Universal Protocol (PUP). This can be used either directly over a serial RS232 or RS485 interf ace (e.g. via a HyperTerminal session) or via Ethernet (e.g. via a Telnet session). The Simple Netw ork Man agement Protocol (SNMP) v1 and v2c are supported.

7.1 User Names, Passwords and Modem Control

The modem can be controlled by either a local user via the local front panel, or a remote web user. In addition, a re mote user can either have f ull control over the modem or be restricted to view ing modem information. Access to the modem is controlled by passwords. These concepts are explained in the follow ing sections.

7.1.1 Local Mode

On shipping from the factory, the modem defaults to Local mode w hich allow s 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, then SNMP

commands are always ob eyed regardless of any user arbitration that is active within the modem – this point should be taken into account w hen adding new control f acilities to

those already built into the modem.

7.1.2 Giveaw ay M ode

When the modem is sw itched to Giveaw ay mode, a remote w eb user may assume control of the modem.

For remote w eb brow sing, there are tw o fixed user names, namely, admin and user. The admin user can view and change the modem configuration, w hile user can only view the mod em settings. Only ad min can change the tw o passwords associated w ith these tw o user names.

Only one remote admin user can be logged in to the modem at any time but multiple users can be logged in as user at the same time. With re mote control users, there is alw ays an explicit login process, requiring both a valid user name and passw ord to be entered. Note that remote admin users cannot log in w hile the modem is in Local mode.

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A user-settable timeout controls f or how long the admin user is logged in w ithout any user entry activity – when user entry is detected then the user session is extended by the length of the timeout p eriod. An admin user can also choose to log ou t of the modem, which has the effect of closing the brow ser session and allow ing another user to control the modem.

View -only user login sessions do not use any timeout and are main tained until the browser session is closed. They are also unaffected by whether the modem is under local or remote control.

In Giveaw ay mode, control is passed to the first admin user that logs in. If an attempt is mad e to log in as admin w hen there is already an admin user logged in, then the login w ill succeed but the user will have view -only permissions, thereby ensuring there can never be tw o users in control of the modem at the same time.

In order to allow a sw itch back to local control f rom Giveaw ay mode, when there is no remote admin user logged in, the local front panel interface can gain control at any time simp ly by issuing a command from the front panel user interf ace. While a remote admin user is logged in then the local front panel interface is restricted to view ing modem settings only.

Once a local user has gained control in Giveaw ay mode, they can then change the mod em back to local control, thereby locking out remote admin users. Note that unless the sw itch back is done, local front panel interf ace control w 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 f ront panel interface to gain control, no user is in control of the modem.

Although there is no explicit login associated w ith the local front panel interface, there is an implicit login w hen a key is first pressed. Conceptually, a user at the local front panel interf ace is logged in as ad min w hen in Giveaw ay mode and th ere is no remote admin user currently logged in, otherw ise the local f ront panel interface is logged in as a view only user. In Giveaw ay mode, the user at the local front panel interface can explicitly log out by pressing the Main key.

7.1.3 Takeaway Mode

In Takeaw ay mode, either the user at the local f ront panel interface or a remote admin user can control the modem at any time. In this mo de there is no restriction on the number of admin users that can be logged in at one time. When the modem is sw itched out of Takeaw ay mode to Local mode then a ll remote admin users w ill be automatically logged out. When it is sw itched from Takeaw ay to Giveaw ay, then all but one instance of admin users will be automatically logged out. Although technically only one user is in control at any time, control is relinquished as soon as a command is sent and therefore different control requests from diff erent users are simply interleaved w ith each other. Because of this, Takeaw ay mode is best used in circumstances w here there are clear operational procedures in place to avoid conf licts arising in relation to modem control.

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7.2 Front Panel Interface

7.2.1 Keypad Operation

7.2.1.1 Cursor

A cursor (show n in inverse video) is used to highlight the current position on the LCD display. This is used w hen making menu selections and w hen entering values.

7.2.1.2 Navigation Ke ys

Men us are displayed as a hierarchy of sub-menus. Navigation is performed using either the arrow and ENTER keys or by entry of the menu identification number that immediately precedes each menu name.

The Up arrow key navigates between menu options by moving the cursor up one line except w hen entering a numeric value w hen it increments the digit highlighted by the cursor. (Note that when entering the values of timeslots to be dropped or inserted the Up arrow key is used to enter a hyphen.)

The Down arrow key navigates betw een menu options by moving the cursor dow n one line except w hen entering a numeric value w hen it decrements the digit highlighted by the cursor. (Note that w hen entering the values of timeslots to be dropped or inserted the Down arrow key is used to enter a comma.)

The Left arrow key moves the cursor to the left. On a menu this is used to navigate betw een 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 t his is used to navigate betw een menu options. When entering an alphanumeric value it moves the cursor to the next digit. The Right arrow key has a special function w hen view ing the system log, w here it is used to move f orw ards in the log by 100 entries. (Note that w hen entering the values of timeslots to be dropped or inserted the 0 key pressed together at the same time as the Right arrow key deletes the character at the cursor.)

The MAIN key returns the user to the MAIN menu from anyw here in the menu hierarchy.

On a menu, the ENTER key is used to navigate to the submenu highlighted by the cursor. When entering or selecting a new value, the ENTER key is used to accept the new value and a f urther press of the ENTER key is required to move to the next screen (w ith the exception of the ‘configure a ll’ function w here one press of the ENTER key provides both steps). Note that w hen a new value is accepted, it is applied to the modem hardw are immediately. On some menus, several screens may be chained together in w hich case pressing the ENTER key w ill move onto the next screen in the chain.

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On a menu, the BACK key is used to navigate to the previous screen. When entering or selecting a new value, the BACK key is used to cancel any change to the current value and move backw ard to the previous screen.

7.2.1.3 Alphanumeric Ke ys

The alphanumeric keys provide numeric entry. In special cases, w here it is valid to enter alphabetic characters, repeated pressing of a numeric key w ill cause the key to cycle through its associated low er case and then upper case alphabetic characters (in a similar way to a mobile phone).

7.2.1.4 Special Function Ke ys

Help

Help information can be displayed for any M&C control by holding dow n the 0 key and pressing the Left arrow key together while the screen containing the M&C control is displayed. This brings up scrollable text that explains the M&C control’s f unction. 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 o keys again at the same time unlocks the keypad.

LCD Contras t

The contrast of the LCD display can be adjusted by holding dow n the 0 key and pressing the Up (or Down) arrow key together at the same time. The Up arrow key increases the contrast and the Down arrow key decreases the contrast.

LCD Backlight

The LCD backlight can be sw itched off or on by holding dow n the 0 key and pressing the ENTER key together at the same time.

Log/Alarm Clear

The system log and system alarms can be cleared by pressing the 0 key w hen on the relevant log or alarm d isplay screen.

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7.2.2 LCD Screen Layout

The front panel user interface uses a menu system to present choices to the user. These in turn allow either the selection of a value from a list of options or require the entering of a new value. Examples of these types of screen are show n below .

Screen Type 1: Menu Selection from Pre-defined Numeric Lis t

Note that the menu title is show n on the top line and it show s the nested menu hierarchy (similar to brow sing folders on a PC, w here each level is reflected in the current path name). Menu options are show n as both a highlit number (w hich can be pressed directly on the keypad to select the menu 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 f rom the menu option text.

Screen Type 2: Entr y of Numeric Value

Screen Type 3: Menu Selection from Scr ollable List

Note that on a scrollable menu the Up and Down arrow keys are used to scroll through the available options.

Note that features that are not available appear on the display in strikethrough (e.g. Rate 7/8). There are several reasons w hy a feature may not be available:

• The feature is a Softw are Activated Feature (SAF) and the appropriate SA F code has not been enabled. Please contact Parad ise Sales w ho can issue a SAF key to unlock the feature. Alternatively, all SAF features can be enabled for a limited time as described in Section 7.3.3.3.6 (Edit-Unit-Advanced-SAF Code screen).

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• The feature is available but its use is precluded by the current operational modem settings.

7.3 Front Panel Menu Structure

The men u hierarchy for the f ront panel is described in this section.

7.3.1 M ain Menu

The Main menu can be accessed from any display by pressing the MAIN key. It is from this menu that all functions 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 show n on the top line of the screen and is typically used to specify the physical location of the modem or identify the modem satellite link. This can be set as described in Section 7.3.3.3.1.

Main: [London-New York] 1Status 2Edit 3View 4Test

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7.3.2 Status Me nu

Note that the 1-for-N and BUC menu options are show n on the screen above for convenience – in practice it is necessary to scroll dow n to access these options as they are off-screen. The Status menu contains the current modem status split over several screens. The 1-f or-N screen is not available unless the modem is the standby modem built into a 1-for-N redundancy sw itch (the 1-for-N redundancy switch user interf ace 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 is constantly updated w ith the follow ing information:

Status : 1Setup 2Tr affic 3De m odulator 4Eb/No 5BER 6Power 71-for-N 8BUC

Tx:140.0000MHz Rx:7 0.0000MHz 19500000bps 7437366bps

13109481sps 5000000sps

Tx OK since 10:14:46 on 6/4/08 Rx OK since 10:14:46 on 6/4/08 Carr ier:Norm al

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• When there is no transmit path fault then the message ‘Tx OK since HH:MM:SS on DD/MM/YY’ is displayed (w here ‘HH’ indicates hours, ‘MM’ indicates minutes, ‘SS’ indicates seconds, ‘DD’ indicates the day of the month, ‘MM’ indicates the month of the year and ‘YY’ indicates the year). When a transmit path fault exists then a fault message is displayed instead that indicates the nature of the fault.

• When there is no receive path fault then the message ‘Rx OK since HH:MM:SS on DD/MM/YY’ is displayed (w here the time and date format is as explained above). When a receive path fault exists then a fault message is displayed instead that indicates the nature of the fault.

• The trans mit carrier status, w hich displays one of the follow ing.

o 'Nor mal': the carrier is on. o 'Mute-Ext': the carrier is muted due to an alar m 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 as required) or some other proble m being experienced w ith the terrestrial interface.

o 'Mute-1:1': the carrier is muted due to being the Standby modem in a 1-for-1

Standby system.

o 'Mute-Brk': the carrier is muted due to a pow er outage. o 'Mute-Flt': the carrier is muted due to an alar m detected by the modem

softw are.

o 'Mute-Cfg': the carrier is muted due to the modem being in the process of

reconfiguring.

o 'Mute-Off ': the carrier has been muted by the user.

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Status-Dem odulator Screens

Navigation betw een the three demodulator status screens is via the Up and Down arrow keys. The screens are constantly updated w ith the follow ing information:

• The receive path Eb/No figure (energy per bit to spectral noise density ratio).

• The receive path Es/ No figure (energy per symbol to spectral noise density ratio).

• The receive path Modulation Error Ratio (MER). This is a measure of how far away

the points in the received constellatio n are f rom their ideal positions due to phase noise, etc. Due to the sharp ‘w aterfall’ eff ect present in DVB-S2 BER curves, a mod em 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 (B ER).

• The receive path pow er level.

• The receive signal frequency offset from the carrier centre f requency. This is the

measured error of the received carrier, relative to the expected frequency. It can be used to determine any frequency shif t due to the satellite and frequency conversion equipment.

Eb/No:6.3dB BER:<1.0 E-12 Rx power:-33dBm

Freq offset:0.1Hz

Es /No:8.1dB BER:<1.0E-12 Rx power:-33dBm

Freq offset:0.1Hz

MER:9.7dB BER:<1.0 E-12 Rx power:-33dBm

Freq offset:0.1Hz

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Status-Eb/No Screen

This screen shows the receive path Eb/No f igure (energy per bit to spectral noise density ratio) in large font for easy view ing. It show s the user-settable Modem Identifier on the bottom line of the screen.

Status-BER Scre en

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-New York

BER: 1.0E-12

ID:London-New York

Rx power: -38dBm

ID:London-New York

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Status-BUC Screen

This screen is available only on L-band modems. It is updated w ith the follow ing information:

• Output: this is the output pow er in dBm at the w aveguide flange, or Off if the BUC is not transmitting.

• Mode: in Terminal (closed 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 mod e 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 level in

Amperes.

Output: 40.0dBm Mode: Te rminal RF: -15.3dBm BUC: -10.0dB

Status : 25ºC Type: 10W 12.8A

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7.3.3 Edit Me nu

This menu contains the following options:

• All. This option leads the user through the most commonly used modem settings, giving a quick w ay of setting up the modem. The sequence can be terminated at any time by pressing the MAIN key.

• Tx. This selects the transmit path edit submenu, w hich allow s all of the modem Tx properties to be changed.

• Rx. This option selects the receive path edit submenu, w hich allows all of the modem Rx properties to be changed.

• Unit. This selects the unit edit submenu. This allow s all of the modem properties that are independent of the Tx and Rx paths to be changed.

• Memories. This option selects the configuration memory submenu, w hich allow s the mod em configuration to be saved or a previous configuration to be recalled.

7.3.3.1 Edit-Tx M enu

This menu contains the following options:

• Interface. This option allows Tx-specif ic terrestrial interf ace options to be set.

• Mode. This option controls the selection of DVB mode and submodes.

• Baseband. This submenu controls DVB-S2 input stream synchronization w hen

mu ltiple data streams are present.

• FEC-Mod. This subme nu controls Forw ard Error Correction (FEC) and modulat ion options including modulation type, FEC rate, pilot tones and frame size.

• Carrier. This leads to a submenu that a llow s the carrier, frequency, pow er, spectrum inversion and spectrum roll-off to be controlled.

Edit: 1All 2Tx 3Rx

4Unit 5Memories

Edit/Tx: 1Interface 2Mode 3Baseband 4FEC-Mod 5Carrie r

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7.3.3.1.1 Edit-Tx-Interface Screen

Options :

ASI

Selects the Quad ASI card as the source of Tx data.

Only available w hen the P37 10 Quad ASI card is fitted.

Selects the IP card as the source of Tx data.

Only available w hen the P37 14 IP Traffic card is fitted.

Factory default: Depends on hardw are that has been fitted.

Description: This selects the terrestrial data source for the Tx path. The ports on the

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

mod ulation options w ill only be available if the respective SAF features have been enabled.

DVB

-S2

Selects DVB-S2 mode. Af ter selecting this, pressing ENTER for a second and then a third time w ill allow both the submode of DVB-S2 to be set (CCM, VCM/ACM) an d the transport mode (Transport, Generic

Edit/Tx/Tx te rrestrial interface : [ASI]

New :[IP]

Edit/Tx/DVB m ode: [DV B-S]

New :[DVB-S2]

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Continuous, Generic Packetised).

Factory default:

DVB-S

Description: Controls DVB mode selection.

Edit-Tx-Mode DVB-S2 Mode Screen

Options :

CCM

Selects DVB-

S2 CCM (Constant Coding and Mo dulation) mode. This

applies constant FEC rate and modulation to each DVB-S2 frame.

VCM

Selects DVB-

S2 VCM (Variable Cod ing and Modulation) mode. This

mod e allow s diff erent 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 M ode Screen

Edit/Tx/DVB-S2 mode: [DV B-S] New :[DVB-S2]

Edit/Tx/Transport m ode: [Trans port] New :[Generic Continuous]

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Options :

Generic Packetised

This selects the Generic Packetised mode w ithin DVB-

S2. This should be

selected w hen the terrestrial data is IP and the packets are all of the

same fixed length.

Generic Continuous

This selects the Generic Continuous mode w ithin DVB-

S2. Th is should be

selected w hen the terrestrial data is IP

and the size of the packets is

unknow n or variable.

Transport

This selects the MPEG2 Transport Stream ( TS) mode w ithin DVB-

S2.

This should be selected w hen the terrestrial data 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-Base band Menu

This menu contains support for DVB-S2 multiple streams. The current version of the softw are 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 that option 7 is shown above on the same screen for convenvience but the Down arrow key must be used to scroll down to this in practice.

This menu allows configuration of modulation type, pilot tones, frame size, code rate, data/symbol rate and scrambler settings.

Edit/Tx/FEC-Mod: 1Modulation 2Pilots 3Frame type 4Code rate 5Maintd rate 6Info rate 7Scrambler

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Edit-Tx-FEC-Mod-Modulation Screen

Options :

QPSK

8PSK

Valid only in DVB-S2 mo de or in DVB-S mode w hen the DVB-

DSNG

SAF is enabled.

16QAM

Valid 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

Edit/Tx/FEC-Mod/M odulation: [16APSK] New :[8PSK]

Edit/Tx/FEC-Mod/Pilot tones: [Off]

New :[On]

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Factory default: Off

Description: Pilot tones are an optional part of DVB-S2. They provide an

unmodulated tone at regular intervals in th e transmitted data that can

help receivers

to lock and stay in lock particularly w hen using higher

order modulation schemes in noisy environments. They add an overhead

of around 2.5% to the transmitt ed 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 frame size: [Norm al] New :[Short]

Edit/Tx/FEC-Mod/Code rate/FEC code rate: [8/9] New :[5/6]

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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

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Options :

Data rate

This option keeps the terrestrial data rate constant at all times.

Symbol rate

This option keeps the modulated symbol rate rate constant at all times.

Factory default:

Data rate

Description:

This option allow s either the modulated symbol rate or terrestrial data

rate to be kept consta

nt w hen modifying modulation and coding

parameters.

Edit-Tx-FEC-Mod-Inform ation Rate Screens

One of the tw o follow ing screens will be displayed depending on w hether 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 Edit-Tx-FEC-Mod-Maintained Rate Screen) w hen changing modulation and coding settings. The Data rate screen above is only available w hen the Maintained rate is set to Data rate.

Edit/Tx/FEC-Mod/M aintd rate/M aintain rate: [Data rate ] New :[Sym bol rate]

Edit/Tx/FEC-Mod/Info r ate/Data rate : [010000000] New :[010000000] 50000-98000000bps

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After entering the data rate, if the ENTER key is pressed again then the symbol rate is displayed (but cannot be altered).

Factory default: 100000

Description: Sets the symbol rate rate for the Tx path.

Note that it is possible to choose whether to maintain data rate and vary symbol rate or vice versa (see Edit-Tx-FEC-Mod-Maintain Rate Screen) when changing modulation and coding settings. The Symbol rate screen above is only available w hen the Maintained rate is set to Symbol rate.

After entering the symbol rate, if the ENTER

key is pressed again t hen

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 f rames (other than the header) for improved energy dispersal, reducing interference betw een different signals.

Scrambling sequences are constructed by combining

the output of tw o generator polynomials into a co mplex sequence know n as a ‘Gold’ code. Setting thi

s to 0 avoids both having to set a value at the

receiver and any unw anted synchronization delay.

Edit/Tx/FEC-Mod/Info r ate/Symbol rate: [15167598] New :[ 15167598] 100000-45000000sps

Edit/Tx/FEC-Mod/Scrambler seed: [00000] New :[00000] 0-262141

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7.3.3.1.5 Edit-Tx-Carrier Menu

This menu contains the follow ing options:

• Enable. This controls the carrier (on/off).

• Power. This option controls the output pow er level.

• Frequency. This sets the frequency used to transmit to the satellite.

• Inversion. This controls whether the I and Q channel outputs are swapped, to give

spectrum inversion.

• Roll-off. This 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.

• Advanced. This gives access to a BUC control menu on L-band modems.

Edit-Tx-Carrier-Enable Screen

Options :

Off

The carrier is off.

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 conf irmation of transmission (i.e. selecting

Edit/Unit/Advanced/Operation and selecting Ack Pwr Bre) f ollow ing a pow er outage.

RTS enabled

When RTS is enabled then the carrier is controlled by the interface RTS

line.

Edit/Tx/Carrier: 1Enable 2Power 3Frequency 4Inversion 5Roll-off 6Advanced

Edit/Tx/Carrier/Carrier mode: [On] New :[Off]

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Factory default:

Off

Description:

Tx carrier control.

Edit-Tx-Carrier-Power Screen (IF Modem)

Units : dBm Minimum value : -25.0 Maxim um value: 0 Step size: 0.1 Factory default: -25.0

Description: Tx IF output pow er level.

Edit-Tx-Carrier-Power Screen (L-band M odem)

Units : dBm Minimum value : -30.0 Maxim um 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

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Edit-Tx-Carrier-Freque ncy Screen (IF Modem)

Units : MHz Minimum value : 50.0000 Maxim um value: 180.0000 Step size: 0.0001 Factory default: 70.0000

Description: Tx IF frequency used to transmit to satellite. Note that values betw een

90 and 100MHz cannot be selected.

Edit-Tx-Carrier-Freque ncy Screen (L-Band Modem)

Units : MHz Minimum value : 950.0000 Maxim um 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 :[950.0000] 950-1950MHz

Edit/Tx/Carrier/Tx spectral inversion: [On]

New :[Off]

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Factory default: Off

Description: Controls w hether the I and Q channel outputs are sw apped. This is

sometimes required f or correct interoperation w ith other manufacturer’s equipment.

Edit-Tx-Carrier-Roll-off Screen

Options :

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/Advanced/BUC : 1Power offs et 2BUC type 3PSU 4Re ference 5Output 6Attenuation 71-for-1

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• Power offset. This allows the user to set the system gain or loss af ter the modem,

so the modem can display the transmit carrier level in terms of either the transmit pow er or EIRP, measured in dBm or dBW.

• BUC type. Allows the type of BUC to be selected from a list of supported BUCs,

with the option of either open loop control (Independent mode) or closed loop control (Terminal mode). In closed loop mode, the modem attempts to maintain a constant BUC output pow er by adjusting the modem output pow er and BUC attenuation level.

• PSU. If the modem is fitted with an internal DC pow er supply option then this screen

allows the user to turn on or off the DC pow er supply 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 controls w hether BUC services (i.e. DC supply and 10MHz reference)

stay w ith the on-line modem or sw itch to the standby modem w hen a 1-f or-1 sw itchover occurs in a 1-f or-1 redundant pair of modems. Note that FSK communications w ill alw ays be switched over.

Edit-Tx-Carrier-Advanced-BUC Pow er Offset Screen

Units : DBm/dBw Minimum value : -99 Maxim um value: +99 Step size: 0.1dB Factory default: 0

Description: This screen allows the modem to display and the user to edit the final

SHF pow er instead of the IF carrier level. Use the up/dow n arrow s to change the sign. Once set, the user is navigated to the Tx pow er units selection screen.

./Tx/Carr ier/Advanced/BUC/Tx power offset: [-00.0] New :[-00.0] -99.9-99.9dB

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Edit-Tx-Carrier-Advanced-BUC Pow er Units Screen

This allows the user to set the modem to display and edit the Tx carrier level in terms of either the Tx Pow er or EIRP, measured in dBm or d BW.

Edit-Tx-Carrier-Advanced-BUC Type Screen

Options :

None

There is no BUC a ttached 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: 13050MHz.

./Tx/Carr ier/Advanced/BUC/Tx power units: [dBm] New :[dBw ]

./Tx/Carr ier/Advanced/BUC/BUC type: [None] New :[C 5.8 – 6.425 GHz]

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Ext Ku 13.75 – 14.5 GHz (CODU)

Uses RS485 comms to CO unit. LO frequency: 12800MHz.

RFT5000 C

Uses RS485 comms to RFT5000. LO frequency 4900 MHz.

C 5.8 – 6.425 GHz (VSAT)

Only available if FSK option fitted. LO frequency: 4900MHz.

PALAPA 6.425 – 6.725 GHz (VSAT)

Only available if FSK option fitted. LO frequency: 5475MHz.

INSATC 6.725 – 7.025 GHz (VSAT)

Only available if FSK option fitted. LO frequency: 5775MHz.

Ku 14.0 – 14.5 GHz (VSAT)

Only available if FSK option fitted. LO frequency: 13050MHz.

Offset Ku 13.75 – 14.25 GHz (VSAT)

Only available if FSK option fitted. LO frequency: 12800MHz.

Factory default:

None

Description

Allow s 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 Te rm inal Mode Screen

This allows the user to select either open loop control (Independent mode) or closed loop control (Terminal mode). In closed loop mode, the modem attempts to maintain a constant BUC output pow er by adjusting the modem output pow er and BUC attenuation level. In

./Carrier/Advanced/BUC/BUC term inal m ode: [Off] New :[On]

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open loop mode, no feedback f rom the BUC is used. Once a selection has been made and if the BUC type has been set to Other then the follow ing SHF Frequency Offset screen is displayed.

Edit-Tx-Carrier-Advanced-BUC Freque ncy Offset Screen

Units : GHz Minimum value : -99.999 Maxim um value: 99.999 Step size: 0.0000001GHz Factory default: 0.000

Description:

This screen allow s the modem to be set to display and edit the final SHF

frequencies 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

men u option to manually set the frequency shift is not presented.

Edit-Tx-Carrier-Advanced-BUC Pow er Screen

Units : W Minimum value : 0 Maxim um value: 999 Step size: 1W Factory default: 0.000

Description: This screen tells the modem w hat the BUC pow er class is. How ever,

this can be ignored unless a CO has been selected, w ith a pow er output greater than 170W.

./Carrier/Advanced/BUC/SHF freq offset: [+12.80000000] New :[+12.80000000] -99.999-99.999GHz

./Carrier/Advanced/BUC/Powe r if over 170W: [000] New :[000] 0-999W

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Edit-Tx-Carrier-Advanced-BUC DC Supply Screen

This screen allows the user to control the DC to the BUC. Either +48V DC 3A (200W) or +24v DC 5.5A (200W) may be sourced via the coax (line pow ered) if the BUC pow er supply option is fitted.

Severe damage may occur if a DC supply is fed to a BUC not configured to be `Line powered`.

Edit-Tx-Carrier-Advanced-BUC 10MHz Reference Screen

By selecting On, the modem’s internal 10MHz reference signal can be sourced from the mod em 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 providing DC/10MHz Ref/FSK) and you w ish to mute all the carriers.

./Carrier/Advanced/BUC/DC supply voltage: [Off] New :[On]

./Carrier/Advanced/BUC/10MHz reference : [Off] New :[On]

./Tx/Carr ier/Advanced/BUC/BUC carrier: [Off] New :[On]

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Edit-Tx-Carrier-Advanced-BUC Attenuation Screen

Units : dB Minimum value : 0 Maxim um value: -15 Step size: 1dB Factory default: 0

Description:

This allow s the user to vary the attenuator in t he BUC. Typically this is

used w hen there is a short run from the modem to the BUC made w ith reasonable quality cable, and w here with a low loss the minimum outp

from the modem could saturate the BUC input unless the attenuator (early in the BUC gain profile) is set suitably high.

If in doubt alw ays start w ith 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 1for-1 sw itchover occurs in a 1-f or-1 redundant pair of modems.

7.3.3.2 Edit-Rx Menu

./Advanced/BUC/BUC attenuation: [-15] New :[0] -15-0dB

./BUC/Mute services in Standby: [Off] New :[On]

Edit/Rx: 1Interface 2Mode 3Baseband 4FEC- Demod 5Carrier 6Rx=Tx

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This menu contains the following options:

• Interface. This option allows Rx-specif ic terrestrial interface options to be set.

• Mode. This option controls the selection of DVB mode and submodes.

• Baseband. This submenu controls DVB-S2 stream synchronization w hen multiple

data streams are present.

• FEC-Mod. This subme nu controls Forw ard Error Correction (FEC) and modulat ion options including modulation type, FEC rate, pilot tones and frame size.

• Carrier. This leads to a sub menu that allows the receive frequency, spectrum

inversion and spectrum roll-off to be controlled.

• Rx=Tx. This option a llow s the receive path to be automat ically configured to be the

same as the trans mit 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 description of the transmit path equivalent.

7.3.3.2.4 Edit-Rx-FEC-De mod Menu

Note that options 7 and 8 are shown above on the same screen for convenvience but the Down arrow key must be used to scroll dow n to these in practice.

This menu allows configuration of modulation type, pilot tones, f rame size, FEC rate, data/symbol rate, scramb ler settings and sw eep width.

Edit/Rx/FEC- Dem od: 1Modulation 2Pilots 3Frame type 4FEC rate 5Data rate 6Sym rate 7Scrambler 8Sweep

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Edit-Rx-FEC- Demod-Modulation Screen

See the description of the transmit path equivalent.

Edit-Rx-FEC- Demod-Pilots Screen

See the description of the transmit path equivalent.

Edit-Rx-FEC- Demod-Frame Type Screen

See the description of the transmit path equivalent.

Edit-Rx-FEC- Demod-FEC Rate 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-Sym bol Rate Screen

See the description of the transmit path equivalent.

Edit-Rx-FEC- Demod-Scramble r Screen

See the description of the transmit path equivalent.

Edit-Rx-Dem odulation-Sweep Screen

Options :

Normal

In this mode the sw eep w idth is controlled automatically by the modem.

The w idth is alw ays set to +/-32kHz by the modem.

Other

Edit/Rx/FEC- Dem od/Sweep mode: [Norm al] New :[Other]

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This mode allow s the user to set the sw eep w idth in order to compensate

for carr

ier frequency uncertainty due to Tx frequency, satellite and Rx

frequency conversions.

Factory default:

Normal

Description: Controls the Rx signal sw eep conf iguration.

Edit-Rx-Dem odulation-Sweep Width Screen

Units : kHz

Minimum value : 1 Maxim um value: 250 Step size: 1 Factory default: 32

Description: Controls the Rx signal sw eep w idth w hen the Swe ep 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 inversion.

• Roll-off. This selects the gradient of the sloping shoulders of the spectral mask and should be set to be the same as that of the transmitted signal.

Edit/Rx/FEC- Dem od/Sweep width(+/-): [032]

New :[032] 1-250kHz

Edit/Rx/Carrier: 1Frequency 2Inve rsion 3Roll-off 4Advanced

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• Advanced. This controls the Paired Carrier (PCMA) carrier overlap feature. On L-band mod ems it also allow s control of an LNB.

Edit-Rx-Carrier-Frequency Screen

See the description of the transmit path equivalent.

Edit-Rx-Carrier-Inversion Screen

See the description of the transmit path equivalent.

Edit-Rx-Carrier-Roll-off Screen

See the description of the transmit path equivalent.

Edit-Rx-Carrier-Advanced LNB M enu

The follow ing LNB screens are only available on the L-Band Modem.

This menu has the follow 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 f requencies 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 whether LNB services (i.e. DC supply, 10MHz reference and FSK communications) stay w ith the on-line modem or sw itch to the standby modem w hen a 1-for-1 switchover occurs in a 1-for-1 redundant pair of modems.

Edit-Rx-Carrier-Advanced-LNB Type Screen

Edit/Rx/Carrier/Advanced/LNB: 1LNB 2PSU 3Re ference 41:1

./Rx/Carrier/Advanced/LNB/LNB type: [None] New :[C 3.635 – 4,2 GHz]

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Options :

None

There is no LNB attached.

Other

If you are not using a Paradise LNB, select Other

and manually

configure the BUC parameters.

C 3.635 – 4.200 GHz LO Frequency: 5150MHz.

Ku 10.95 – 11.45 GHz. LO Frequency: 10000MHz.

Ku 11.2 – 11.7 GHz LO Frequency: 10250MHz.

Ku 11.7 – 12.2 GHz LO Frequency: 10750MHz.

Ku 12.25 – 12.75 GHz LO Frequency: 11300MHz.

Factory default:

None

Description

Allow s the user to select a number 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` L NB 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 f requency. Note that w ith the LNB type set to None or Other, there is no w ay to manually enter an SHF offset that uses a high side LO.

Edit-Rx-Carrier-Advanced-LNB Freque ncy Offset Screen

./Carrier/Advanced/LNB/SHF freq offset: [-05.15000000] New :[-05.15000000] -99.999-99.999GHz

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Units : MHz Minimum value : 0 Maxim um value: 65535 Step size: 1 Factory default: 0

Description: Once set, all Rx IF frequencies displayed or edited include the frequency

shift of the LNB or dow nconverter chain.

Note this manual entry of SHF Frequency shift always assumes a low

side Local Oscillator (LO) and therefore displays the SHF Frequency =

LO + IF. There is no means to enter

a High Side LO, w here the SHF

frequency received would be LO -

IF Frequency (unlike the situation

where a predef ined Std C band L NB is selected and the modem know s that a high side LO is being used).

Edit-Rx-Carrier-Advance d-LNB PSU Me nu

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 vol tage DC suppl y) is fed to a LNB not configured to be `Line powered`.

Edit-Rx-Carrier-Advanced-LNB 10MHz Reference Screen

When sw itched on, the modem’s internal 10MHz reference signal is sourced from the mod em up the coaxial site cable to the LNB.

./Carrier/Advanced/LNB/DC voltage: [Off] New :[15v]

./Carrier/Advanced/LNB/10MHz reference: [Off] New :[On]

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Edit-Rx-Carrier-Advanced-LNB 1:1 Scre en

This controls w hether LNB services (i.e. DC supply and 10MHz reference) stay w ith the on-line modem or sw itch to the standby modem w hen a 1-for-1 sw itchover occurs in a 1for-1 redundant pair of modems. Note that FSK communications w ill alw ays be switched over.

Edit-Rx-Carrier-Advanced PCMA Menu

This menu has the follow ing options:

• Enable. This is used to sw itch Paired Carrier off and on. Access to this menu option requires the Paired Carrier f eature to have been previously enabled through the mod em SAF mechanism.

• 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 trans mitted 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-PCMA Enable Scr een

This is used to switch Paired Carrier off and on. Access to this menu option requires the Paired Carrier feature to have been previously enabled through the modem SAF

mechanism.

./Advanced/LNB/Mute Services in Standby: [Off] New :[On]

PCMA: 1:Enable 2:Round trip delay

PCMA enable : [Off] 1: Off 2: On

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For first-time use please see the Paired Carrier deployment recommendations in the information box overleaf.

When sw itched on, the modem expects the received signal to consist of two overlapped carriers utilizing the same space segment. When on, a copy of the modem’s transmitted signal w ill be stored in memory and the Paired Carrier signal processing algorithm w ill attempt to match this w ith the composite return 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 of the normal setup of the modem even f or non-overlapped carriers and work in the same w ay. The cancellation bandw idth itself is automatically deduced by the mod em from the larger of the transmit and receive symbol rates and roll-off factors (i.e. occupied bandw idth).

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PLEASE READ THE FOLLOWING INFORM ATION FOR FIRST-TIM E SETUP OF A PAIRED CARRIER LINK.

In relation to Paired Carrier, generally there are no restrictions on how the overlapped carriers are brought up and the satellite link is established. How ever, the follow ing guidelines may be usef ul in proving correct Paired Carrier operation as part of the overall initial link deploy ment process. Once correct operation is established then Paired Carrier can be switched on and off or reconfigured just like any other mod em feature.

1. Ensure Paired Carrier is switched off.

2. Bring up the first carrier (using the selected common trans mission frequency) and

• Check the receive signal leve l is as expected

• Check the received 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 leve l 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. Sw itch on Paired Carrier in both modems.

8. Check the modems lock to each other’s signal and are data transparent.

9. If the modems do not lock or are not data transparent then

• Sw itch Paired Carrier off and on again in each modem (to counter the possibility of a false lock)

• If this does not work then sw itch the carrier itself off and on again in each modem

• Otherw ise check the general modem settings f or correct configuration and overlap of the tw o carriers (note that there are restrictions on the supported level of power asymmetry and symbol rate asy mmetry).

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Edit-Rx-Carrier-Advanced-PCMA Round Trip Delay Screen

Options :

Location

Select this mode if you w ant the modem to automatically calculate th e

satellite round trip dela

y using coordinates that you enter for the mode m

and satellite positions.

Delay

Select this mode to enter f ixed minimu m and maximum satellite round trip

delay times.

Factory default:

Location

Description: Allow s the selection of the method for dete

rmining the satellite round trip

delay. This can be entered as a time delay or can be automatically calculated f rom 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 trans mitted 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-PCMA Location Screens

When the Round trip delay method for Paired Carrier is set to Location then the follow ing screens are displayed in sequence.

Units : Degs

Minimum value : -180.00 Maxim um value: +180.00

Round trip de lay: 1: Location 2: Delay

Earth s tation lon: -180 to +180Degs [000.00] Ste p 0.01Degs

New : 000.00

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Step size: 0.01 Factory default: 000.00

Description: The longitudinal position of the modem (earth station).

Units : Degs Minimum value : -90.00 Maxim um value: +90.00 Step size: 0.01 Factory default: 00.00

Description: The latitudinal position of the modem (earth station).

Units : Degs Minimum value : -180.00 Maxim um value: +180.00 Step size: 0.01 Factory default: 000.00

Description: The longitudinal position of the satellit e.

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 s tation lat: -90 to +90Degs [00.00] Ste p 0.01Degs New : 00.00

Satellite lon: -180 to +180Degs [000.00] Ste p 0.01Degs New : 000.00

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Units : ms Minimum value : 000.00 Maxim um value: 300.00 Step size: 0.01 Factory default: 000.00

Description: The minimu m satellite round trip delay.

Units : ms Minimum value : 000.00 Maxim um value: 300.00 Step size: 0.01 Factory default: 000.00

Description: The maximum satellite round trip delay.

Edit-Rx-Rx=Tx Scre en

Factory default: 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 to tracking being sw itched on.

Min delay: 0 to 300ms [000.00] Ste p 0.01ms New : 000.00

Max de lay: 0 to 300ms [000.00] Ste p 0.01ms

New : 000.00

Edit/Rx/Rx value s track Tx: [Off]

New :[On]

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7.3.3.3 Edit-Unit Menu

This menu contains the follow ing options:

• Identity. This is a user-assigned field that is typically the unique modem name, number or location.

• Interface. This submenu allow s the selection and set up of terrestrial and RF interfaces.

• M&C. This submenu controls remote M&C settings including passw ords, interfaces and

timeouts.

• Clocks. This controls the station clock source to be used 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 allow s the entry of SAF codes to activate additional softw are features in the modem.

7.3.3.3.1 Edit-Unit-Modem Identifier Screen

Factory default: Paradise Vision modem

Description: User-

assigned field typically the unique modem na me, number or

location.

7.3.3.3.2 Edit-Unit-Interface Menu

Edit-Unit: 1Identity 2Interface 3M&C 4Clocks 5Time 6Advance d

Edit/Unit/Identity/Modem identifier: [Paradise Vision m odem] New :[Paradise Vis ion m odem ]

Edit/Unit/Interface : 1ASI 2IP 3RF

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This menu contains the follow ing options:

• ASI. This allow s each of the ports of the Quad ASI interface card to be set to Tx, Rx or Off. Any port that is not sw itched off will be routed through to the main traffic channel of the modem for transmission or reception from satellite, as selected.

• RF. This option is used to set the RF port impedance.

Edit-Unit-Interface-ASI Menu

Each of the options on this menu controls the respective port of the Quad ASI card as described in the follow ing screen.

Edit-Unit-Interface-ASI-Port Screen

Options :

In (Note this may be show n as Tx in earlier versions of the software)

Sets the respective port of the Quad ASI card to enable it to receive

input

data to be transmitted to the satellite. If the modem is set to allow mu ltistreaming 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 interf ace card that is enabled.

Out (Note this may be show n as Rx in earlier versions of the sof tware)

Sets the respective port of the Quad ASI card to enable it to transmit data

received f rom satellite onto the terrestrial netw ork. If the modem is set to

allow multistreaming then data w ill be deinterleaved

from the multiplexed

receive carrier and passed to the appropri

ate ASI port. Data can either be

passed betw een the same ports at each end of the link (i.e. Tx port 1 to Rx

port 1, Tx port 2 t o Rx port 2, etc.) or data can be filtered based on PID

identifier or ISI identifier.

Edit/Unit/Interface /ASI: 1Port 1 2Por t 2 3Port 3 4Por t 4

Edit/Unit/Interface /ASI/Port 1 mode: [In] New :[Out]

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Off

Disables the respective port of the Quad ASI card.

Factory default:

Off

Description: Sets the

trans mit/receive direction of the relevant port of the Quad ASI

card. Note that each port can be set to either transmit or receive but not both at the sa me time.

After selecting the terrestrial interface as IP from the Edit-Unit-Interface menu, the following screens w ill be displayed in turn, depending on what features have been supplied w ith the modem.

Edit-Unit-Interface-IP-IP Encaps ulation Type Screen

Options :

MPEG over IP

This should be used on ly w hen MPEG2 packets are being encapsulated directly inside IP packets.

ULE

This selects Ultra Lightw eight Encapsulation (RFC 4326).

MPE

This selects Mu lti Pr otocol Encapsulation (RFC 4259).

PXE

This selects Paradise eXtreme Encapsulation. This is a Paradise proprietary encapsulation scheme that adds less than 1% overhead. This compares to typically 10% overhead for MPE and 5 to 7% overhead for ULE.

./Unit/Interface /IP/IP encapsulation type: [UL E] New :[MPE]

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default:

ULE

Description: This allows selection of the

IP encapsulation protocol. IP is not natively

supported by existing DVB standards and therefore the data has to be

encapsulated using another protocol in order to be converted into a

format that can be transmitted and received. The easiest w ay to understand this is to visualize IP packets (potentially of variable size) being transmitted in fixed-size

satellite f rames (chunks of data similar to

packets) of a different size. This introduces problems of

fragmentation,

padding, etc. Various protocols have evolved to handle th is situation.

MPE is the oldest standard w ith w idespread support but it also has the

higest overhead. UL E is a new er standard w ith low er overhead. Both

encapsulate into MPEG 2 Transport Stream (TS) packets of 188 bytes, which are natively supported by the various DVB standards.

Paradise

has added its ow n encapsulation scheme (PXE) w ith low er 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, mu lticast, HTTP, SMTP, FTP, etc.).

When using Vision modems at both ends of a link, PXE should norma lly be used in order to reduce the overhead to a

minimum. When

interoperating w ith other equipment the Vision modem

can operate either

as a Layer 2 Ethernet Bridge or as a Layer 3 router. The

interoperat ing

equipment must

be set the same as the modem (i.e. to either bridging or

routing mode) in order to be able to communicate, regardless of w hich encapsulation protocol is used.

MPEG over IP is used w hen MPEG2 packets are provided to the modem

encapsulated inside IP packets. In this case the modem removes the

MPEG2 packets, throws aw ay the IP packet wrapper and sends the

MPEG2 directly over satellite w ith no additional encapsulation. At the

receiving end, it is necessary to rebuild the IP packets, including

destination address and this leads to the follow ing set of screens.

Edit-Unit-Interface-IP-MPEG Over IP Screen

Options :

UDP/TS

./Unit/Interface /IP/MPEG over IP type : [UDP/TS] New :[UDP/RTP/TS]

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7-47 IP packets w ill consist of UDP packets that contain Transport Stream

packets.

UDP/RTP/TS

IP packets w ill consist of UDP packets that contain R

TP packets that

contain Transport Stream packets.

Factory default:

UDP/TS

Description: This option is relevant only when MPEG over IP is selected as the

encapsulation type. It

indicates the format of IP packets coming into the

mod em trans mitting to sat

ellite and the format of IP packets to be

generated f rom the modem receiving f rom satellite for forw arding to the

terrestrial netw ork. IP packets w ill either contain UDP or UDP/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 use

d on the Rx side only and is used to build a

new IP packet f or transmission onto the local terrestrial netw ork. The

MPEG2 packets that are received over satellite are encapsulated into

new IP packets and sent to the se lected destination address.

Edit-Unit-Interface-IP-Destination 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 R

x side only and is used to build a

./Unit/Interface /IP/Destination address: [010.000.070.001] New :[010.000.070.001]

./Unit/Interface /IP/Destination port: [05678] New :[05678] 0-65535

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new IP packet f or transmission onto the local terrestrial netw ork. The

MPEG2 packets that are received over satellite are encapsulated into

new IP packets and sent to the se lected destination UDP port number.

Edit-Unit-Interface-IP-Local M ulticast Address Screen

Factory default: 000.000.000.000

Description: This option is relevant only when MPEG over IP is selected as the

ncapsulation type. It is used on the Tx side only and is used to listen

for multicast IP packets being sent to the modem for transmission over satellite.

Edit-Unit-Interface-IP-Local M ulticast 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 em for transmission over satellite.

Edit-Unit-Interface-Terrestrial-IP Mode Screen

./Unit/Interface /IP/Local multicast address: [010.000.070.001] New :[010.000.070.001]

./Unit/Interface /IP/Local multicast port: [01234] New :[01234] 0-65535

./Interface/IP/IP m ode: [Br idge m ode] New :[Routing m ode]

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Options :

Bridge mode

Select this mode for ordinary Ethernet over satellite bridging, i.e. po int-to-

point systems. In this mode, the Ethernet bridge builds up bridging

information b ased on the replies it receives back, allow ing it to ascertain which netw ork segments devices are located on.

Routing mode

IP packets are f orwarded

based on the contents of the modem’s routing

table. The routing table can be populated by manually entering routes

and/or by turning on one (or more) of the supported dynamic routing

protocols. The dyna mic 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 t he TCP/IP w hite paper at

http://www .paradisedata.com//w hitepapers.php for more details.

Factory default:

Bridge mode

Description: The routing option is only applicable if an IP Traff ic card is fitted.

See

the TCP/IP w hite paper at

http://www .paradisedata.com//w hitepapers.php for further details on

routing mode operation.

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Edit-Unit-Interface-IP-Ethernet Traffic Mode Screen

Options :

Bridge mode

Select this mode for ordinary Ethernet over satellite bridging, i.e. point-to-

point

systems. In this mode, the Ethernet bridge builds up bridging information based

on the replies it receives back, allow ing it to ascertain w hich netw ork 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-mu ltipoint systems that have a direct return path via satellite.

Remote

Sets up a modem to w ork as a point-to-

mu ltipoint remote site. All modems

connected to a point-to-

multipoint bridge netw ork that are situated at remote sites

(i.e. not on the hub) should be configured to this mode.

./Unit/Interface /IP/Ethernet traffic mode: [Br idge m ode] New :[Mesh]

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Header Compression

This is a bridging point-to-point mode w here UDP and IP packet headers are compressed in order to save satellite bandw idth. The bandw idth savings depend on the particular packet sizes being used. This f eature supports header compression at terrestrial throughput rates of up to 2Mbps via the base modem and throughput rates up to 16896kbps w hen the IP Traffic card is f itted.

Mesh

The mesh mode supports netw orks w here there is one carrier per site and mu ltiple Rx-only modems for receiving from other sites. It is implemented as a variation of the point-to-

mu ltipoint br idging mode (hub operation). Partial

mesh netw orks are also supported.

Brouting mode

Select this mode f or all point-to-multipoint or unidirectional IP systems where there is an indirect return path (i.e. not via satellite). Both the Tx and

Rx modems should have brouting enable d. In this mode, the Ethernet

bridge in the Tx modem d oes not expect to receive replies and simply transmits all Ethernet frames over satellite other than those d estined for itself.

TCP acceleration mode

This mode provides br idging of non-TCP packets co mbined w ith

acceleration of TCP packets using a Performance Enhancing Pr oxy (PEP)

that overcomes performance problems associated w ith using standard TCP

over satellite.

TCP acceleration mode + Header Compression

Only applicab le if an IP traffic Interface card is fitted. This mode provides bridging of non-

TCP packets, acceleration of TCP packets and header

compression.

Factory default:

Bridge mode

Description:

This allow s selection of the mode of operation of the modem Ethernet

bridge. See Section 8.12 for further details of bridge operation. Note that

Ethernet traffic is supported by the P3714 IP Traffic card only and not via the base m odem, which can be used for Ethernet M&C only. The IP Traffic por t on the base modem is reserved for future us e.

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Edit-Unit-Interface-Terrestrial-TCP Acce leration

Options :

TCP acceleration mode

This mode provides routing of non-

TCP packets co mbined 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]

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Edit-Unit-Interface-IP-Bridge Filtering Screen

Options :

Off

In this mode, the bridge w ill f orw ard all traf f ic not destined f or the local subnet to the default gatew ay if one has been specified. If the default gatew ay is a router, then this allow s the router to be set up to filter data in whatever way is appropriate. Note that if bridge f iltering is off and point-tomu ltipoint is being used then it is essential that a router is placed betw een the modem and local netw ork at each remote to stop unw anted traffic circulating on the netw ork.

In this mode, the bridge w ill discard all traf fic 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, f or example, in a point-tomu ltipoint scenario w here there are multiple Rx-only modems w ith a common indirect return path and a default gatew ay is specified that causes

data not destined for a particular Rx modem to be routed out of the

gatew ay and back to the sender through the return path.

Factory default:

Off

Description: Controls w hether the Ethernet bridge f ilters out all traffic other than for

the local subnet. This option is accessible only w hen Brouting mode

being used.

./Unit/Interface IP//Bridge filter ing: [On] New :[Off]

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Edit-Unit-Interface-IP-Bridge M &C Screen

Options :

Off

In this mode, the Re mote M&C Ethernet interf ace w ill not be included in the

Et hernet bridge. When separate, the tw o Ethernet connectors on the base mod em are no longer interchangeable. Although IP traffic through the base mod em is not currently supported, having the tw o Ethernet ports interchangeable has some advantages: it allow s modems to be daisychained w ithout the need for an external hub or sw itch and it allows a cable to be connected betw een the base modem and IP card for performing a softw are upgrade to the IP card (which needs the M&C port to be in the bridge). The advantage of the M&C being out of the bridge is that the Et hernet is put into non-promiscuous mode, w hich can significantly reduce the loading on the modem processor as it helps to reduce the number of Et hernet 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 remot e modem – if the tw o cables have been mixed up then M&C co mmunications w ith the mod em w ill be lost.

In this mode, the Remote M&C Ethernet interface is included in the Et hernet bridge, thereby allow ing M&C traf fic to be via either one cable or via tw o cables w ith them being interchangeable in relation to the tw o physical Ethernet ports on the base modem. See above for advantages and disadvantages.

Factory default:

Description:

Controls w hether the Ethernet M&C interface is included in the Ethernet

bridge or w hether the two base modem Ethernet ports are

isolated from

each other.

Edit/Unit/Interface /IP/Bridge M&C: [Off] New :[On]

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Edit-Unit-Interface-Terrestrial-Enable Default OSPF Configuration

Options :

Use OSPF enabled default

Turns on the OSPF dynamic routing protocol by setting a default configuration that w ill be sufficient in most cases. The configuration can be further tuned, if required, as specified in

the TCP/IP w hite paper at

http://www .paradisedata.com//w hitepapers.php.

Disable OSPF

The OSPF dyna mic 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 option is available in routing mode.

./Interface/IP/Enable default OSPF configuration: [Dis able OSPF] New :[Disable OSPF]

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Edit-Unit-Interface-Terrestrial-Enable Default RIP Configuration

Options :

Use RIP enabled default

Turns on the RIP dynamic routing protocol by setting a default configurat

ion

that w ill be suf ficient in most cases. The configuration can be further tuned,

if required, as specified in the TCP/ IP w hite paper at

http://www .paradisedata.com//w hitepapers.php.

Disable RIP

The RIP 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://w ww .paradisedata.com//w hitepapers.php f or 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 Traff ic card. Both of the Ethernet ports on

the IP Traff ic card use this same address and can be used interchangeably.

Unlike the base modem Remote M&C port, DHCP is

not supported and therefore an address must be manually entered.

The

traffic port IP address is not directly used in straight bridging mode

(although the address must be a valid one for the local network in pointto-

point bridging mode). The IP address is how ever used in modes using

TCP acceleration and header co mpression.

./Interface/IP/Enable default RIP configuration: [Dis able RIP] New :[Disable RIP]

./Interface/IP/Tr affic port IP address: [0.0.0.0] New :[010.000.070.002]

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Edit-Unit-Interface-Terrestrial-IP

-Traffic Port IP Netmask Screen

Factory default: 255.255.255.255

Description: Sets the IP subnet mask for the IP Traff ic card.

Edit-Unit-Interface-IP-

Traffic Port IP Gateway Screen

Factory default: 0.0.0.0

Description: Sets the IP address of a def ault gatew ay for the IP Traffic card

. The

gatew ay repres

ents the ‘next hop’ destination, w hich is normally the

address of a router, for packets destined for somew here other than 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.

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 exclusive ly in relation to the IP Traffic card. The Remote Control Port IP Gateway (on the Edi t-Unit- M&C-IP menu) will be used in relation to the M&C network and the Remote M&C Ethernet port.

./Interface/IP/Tr affic port IP netm ask: [255.255.255.255] New :[255.255.000.000]

./Interface/IP/Tr affic port IP gatew ay: [0.0.0.0] New :[010.000.070.003]

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Edit-Unit-Interface-IP-Weighted QoS Screen

Quality of Se rvice is based on IEEE 802.1p priority tagging. It uses a 3-bit field w ithin

a VLAN tag as a means of prioritising packets. The modem responds to the priority level that is already set in the VLAN tag w hen the packet is received.

The default is to use strict priority que uing, where three queues are established, w ith the highest priority (level 7) being sent first f ollow 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 data gets most bandw idth, but bandw idth is reserved for other low er priority data; for every 4 packets sent f rom the high priority queue, 2 are sent from the medium priority queue and 1 from the low priority queue.

Edit/Unit/Interface /IP/Weighted QoS: [Off] New :[On]

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Edit-Unit-Interface-IP-VLAN Filtering Screen

The mod em 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 traff ic flows as long as there is a return path. In point-to- multipoint operation, each remote modem receives all of the data and use of VLAN tags over just the satellite portion of he link is a useful w ay of being able to filter out unw anted traffic at the remotes. A VLAN id is assigned by the user to each remote modem. The hub Tx modem automatically learns what VLAN tags are associated w ith each 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. Note that the use of point-to-multipoin t VLAN filtering relies on the modem generating and removing VLAN tags and it cannot theref ore be used in situations w here VLAN tags are already present in the data at the point at w hich it is passed to the modem for transmission.

If On is selected, then the follow ing screen is displayed.

The VLAN ID option is used to set the identifier to be used w ith VLAN filtering. 4094 VLAN ids are available (VLAN 0 is usually reserved for priority frames).

Edit/Unit/Interface /IP/VLAN filtering: [Off] New :[On]

Edit/Unit/Interface /IP/VLAN ID: [0000] New :[40] 0-4094

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Web Acceleration mode accelerates w eb browsing by pref etching w eb page inline objects prior to them being requested by the w eb brow ser. It requires a DNS IP address to be set (see the follow ing screen). Web pages comprise multip le objects w hich are typically fetched one or tw o at a time by a w eb browser w ithout w eb acceleration and therefore a full w ebpage can take many t imes the satellite delay to be displayed. The Parad ise w eb proxy examines w ebpage f rames as they pass through the modem and pre-f etches all of the content before it is requested. It is therefore typically available in cache memory at the modem local to the w eb browser prior to the brow ser actually requesting 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.microsof t.com) into IP addresses. The DNS server IP a ddress is normally provided by the Internet Service Provider (ISP) or it is set up in the user’s computer operating system (under TCP/IP properties). Note that DHCP (allow ing the address to be detected automatically) is not supported in relation to this address and therefore an actual address has to be provided.

Edit-Unit-Interface-RF-IF Port Impedance Screen

Options :

50 Ohms 75 Ohms

Factory default: 50 Ohms

Description: Sets the IF port impedance.

Edit/Unit/Interface /IP/Web acceleration: [Off] New :[On]

Edit/Unit/Interface /IP/DNS IP addr: [0.0.0.0] New :[10.0.70.4]

Edit/Unit/Interface /RF/IF port impedance: [50 Ohm s]

New :[75 Ohms]

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7.3.3.3.3 Edit-Unit-M&C Menu

This menu contains the follow ing options:

• Control. This controls w hether modem control is via the front panel (Local), via a remote interface (Giveaway) or w hether all interf aces are allow ed to control the mod em (Takeaway). It also controls the length of time a user is logged in for w ithout any input activity before they are automatically logged out.

• Password. This displays a screen that has options to change the tw o system passwords (Admin and User).

• Interface. This specifies the remote control serial interface type, the remote control serial interface baud rate and an RS485 address for the modem.

• IP. This allow s the IP address for the remote control interf ace 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 mo

dem ow nership. In Local mode only the f ront panel can be

used to control the modem. In Giveaw ay mode, the f irst user to issue a

command gains control of the modem until a manual or automatic log out

occurs. Pressing the MA IN key gives aw ay control of the M

odem.

(Allow ing, for example, a Web user or M&C via RS485 / RS232 to have

exclusive control of the Modem.) In Takeaw ay mode, the modem

accepts commands from any interface at any time (relying on clear

Edit/Unit/M &C: 1Control 2Password 3Interface 4IP

Edit/Unit/M &C/Control/Modem control: [Giveaw ay] New :[Takeaw ay]

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operational procedures to prevent conf licting requests).

Edit-Unit-M&C-Control-Timeout Screen

Units : mins Minimum value : 1 Maxim um value: 720 Step size: 1 Factory default: 5

Description: This screen is displayed af ter selecting modem control. It specifies the

period of time w ithout any user input activity after w hich a user is logged

out. Th is is true even for the local user interface (t

his 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: Mod em passw ord for remote admin user login (login n ame is admin

The admin user can both view and control the modem. Only one admin

user can be logged in at a time.

Edit/Unit/M &C/Control/Auto-logout period: [005] New :[060] 1-720mins

./M&C/Password/Rem ote adm in password:

New :[ ]

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Edit-Unit-M&C-Password-View Only Password Screen

Factory default:

Paradise

Description: This screen is automatically displayed f ollow ing 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: [RS 232] New :[RS485]

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Edit-Unit-M&C-Baud Rate Screen

Options :

110 baud 150 baud 300 baud 600 baud 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 Addr ess Screen

Edit/Unit/M &C/Interface /Baud rate: [9600 baud] New :[9600 baud]

./Unit/M &C/Interface/RS485 address: [1] New :[1] 0-255

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Units : Minimum value : 1 Maxim um value: 255 Step size: 1 Factory default: 1

Description: Specifies the modem's RS485 address. This screen is show n follow ing

the selection of the remo te M&C interface if RS485 is selected.

Edit-Unit-Interface-IP-Remote Control Port IP

Address Screen

Factory default: 10.0.70.1

Description: Sets the IP address for the

remote control interf ace. Note that entering

an IP address of 0.0.0.0 causes the modem to dyna mically request an IP

address from a DHCP (Dynamic Host Control Pr otocol) server on the netw ork, removing the need to allocate static IP addresses to each mod em. 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-Unit-M&C-IP

-Remote Control Port IP

Subne t Mask Screen

Factory default: 255.255.0.0

Description: Sets the remote control port IP subnet mask.

./IP/Remote contr ol port IP address: [010.000.070.001]

New :[010.000.070.001]

./IP/Remote contr ol port IP netmask: [255.255.000.000] New :[255.255.000.000]

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Edit-Unit-M&C-IP

-Remote Control Port IP

Gatew ay Screen

Factory default: 0.0.0.0

Description: Sets the IP address of a default ga

tew ay for use with the base modem

Remot e M&C Ethernet port. The gatew ay represents the ‘next hop’

destination, w hich is normally the address of a router, for 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 interna l

10MHz reference or to replace only the Rx reference clock. This can be used for example to run all modems from a co mmon GPS clock signal.

./IP/Remote contr ol port IP gateway: [0.0.0.0]

New :[010.000.070.002]

Edit/Unit/Clocks/Station clock source: [None]

New :[RS422]

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Edit-Unit-Clocks-Station Clock Use Screen

Options :

Replace internal 10MHz clock Replace only Rx ref clock

Factory default: Replace internal 10MHz clock

Description: Controls the function of the station clock i.e. w hether it replaces the

internal 10MHz reference or is used as an Rx-only reference clock.

Edit-Unit-Clocks-Station Clock Frequency Screen

Units : kHz

Minimum value : 1 Maxim um 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/Clocks/Station clock use: [Re place internal 10MHz clock ] New :[Replace internal 10MHz clock ]

Edit/Unit/Clocks/Station clock freq: [1000] New : 10000] 1000-10000kHz

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7.3.3.3.5 Edit-Unit-Time Screen

This option allows the current time and date of the modem to be set in t he format HH:MM:SS DD/MM/YYYY. The time is maintained even w hile the modem is sw itched off .

7.3.3.3.6 Edit-Unit-Advanced Menu

This menu allows configuration of alarm settings, 1-f or-1 and 1-f or-N redundancy settings, SAF (Softw are Activated Feature) settings and adjustment to the internal 10 MHz reference clock.

Edit-Unit-Advanced-Alarms Me nu

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: 1Alarms 2Operation 31-for-N 4SAF 5Adj ref 61-for-1

Edit/Unit/Advanced/Alarms : 1Thresholds 2Actions

Edit/Unit/Advanced/Alarms /Thresholds: 1BER max 2Eb/ No 3BUC PSU

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Edit-Unit-Advanced-Alarms-Thresholds-BER Thr eshold Screen

Minimum value : 9.9E-15 Maxim um value: 1.0E-2 Step size: 0.1E1 Factory default: 1E-4

Description: Sets the error-rate threshold above which a deferred alarm w ill

generated. This alarm can be sw itched off or on using 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 Maxim um value: 99.0 Step size: 0.1 Factory default: 3.0

Description:

Sets the Eb/No threshold below w hich a def erred alarm w ill be

generated.

Edit-Unit-Advanced-Alarms-Thresholds-BUC PSU Screen

./Alarms/Thresholds/BER threshold: [1.0E-4] New :[1.0E-4] 9.9E-15-1.0 E-2

./Alarms/Thresholds/Eb/No threshold: [03.0] New :[03.0] 0-99dB

./Alarms/Thresholds/DC current min: [0.10] New :[0.10] 0.1-6A

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Units : A

Minimum value : 0.1 Maxim um value: 6 Step size: 0.01A Factory default: 0.1

Description: On L-

band modems, sets the trip threshold at w hich a fault is declared

when the current drawn by the Tx ODU is outside the limit.

Edit-Unit-Advanced-Alarms-Actions Screens

A number of screens are available that control the follow ing:

• BER. Controls w hether the BER threshold alar m is enabled.

• BUC PSU. Controls w hether the 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 Me nu

This m enu allows configuration of redundancy settings, power supply break acknowledgement and allows a SAF demonstration test shot to be ended, returning the SAF settings to their s tate prior to the demonstration mode starting.

Edit-Unit-Advanced-Operation-1 For 1 Screen

Options :

Standby

Edit/Unit/Advanced/Ope ration: 11-for-1 21-for-n 3Ack Pw r Bre 4End demo

Edit/Unit/Advanced/Ope ration/1-for-1: 1Standby 2Maintenance

3In-service

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This option forces a mode m that is on-

traffic to standby. This is done by

mo mentarily creating a fault condition that forces a sw itchover to occur.

Maintenance

Allow s the modem to be removed f rom the redundancy group, therefore preventing the unit being sw itched on line.

In-service

Allow s the modem to enter a redundancy group and be available to come

on line.

Factory default: None

Description: Forces a swi

tch to the standby unit and allow s a modem to be removed

or added to a redundancy group.

Edit-Unit-Advanced-Operation-1 For N Screen

This menu is only available if the modem is an integral part of a 1-f or-N redundancy sw itch. Please see separate redundancy sw itch operating ma nual.

Edit-Unit-Advanced-Operation-Ack Pwr Bre Screen

This allow s the transmit carrier to be restored follow ing a ma ins pow er f ailure, if the transmit carrier control has been set to On-mute if outage. Please see Edit-Tx-Carrier men us.

Edit-Unit-Advanced-Operation-End Demo Screen

This allows the modem demonstration ‘test shot’ features to be turned off, therefore effectively losing the remaining balance of demonstration time left and returning the mod em to a state w hereby it is using only permanent SAF features that have been set.

Edit-Unit-Advanced-1-for-N Screen

Options : Address range 1 to 16 Minimum value : 1 Maxim um value: 16

./Advanced/1-for-N/1:N address: [01] New :[01] 1-16

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Step size: 1 Factory default: None

Description: Sets the 1:N address for the modem to commu nicate w ith a Vision

redundancy sw itch. Not e: the modem’s position w ithin the redundancy sw itch system dictates the 1:N address. Please see

separate

redundancy switch operating man ual.

Edit-Unit-Advanced-SAF Code Screen

Factory default: None

Description: Encrypted code for enabling Softw are Activated Features. Enter 0 to

enable 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 s. This can be adjusted off line by setting the modem to CW. Use a calibrated spectrum analyser set to count mode, or frequency counter and adjust the mod em output for exactly 10MHz.

./Advanced/SAF/Ente r new SAF code:

New :[ ]

./Advanced/Adj ref/Adjust 10MHz reference: [080] New :[080]

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Edit-Unit-Advanced-1-for1 Screen

This allows a modem to ignore loss of demod lock, which would otherwise result in a 1:N changeover to a backup modem.

7.3.3.4 Edit-Memor ies Menu

This menu contains the follow ing options:

• Store. This allow s the current M&C configuration to be stored to a named configuration me mory for later use. Up to 20 configuration me mories can be created (more may be stored if memory allow s). The memories are non-volatile and w ill persist betw een successive pow er-ups of the modem. Configuration memories can be assigned 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 conf iguration.

• Erase. This option allow s configuration memories to be deleted.

Note that one configuration me mory, namely LOAD_DEFAULTS alw ays exists. When this is recalled then it has the effect of setting the modem back to the factory defaults. (Although the LOAD_DEFAULTS memory also appears under Store and Erase, these operations have no effect on this particular configuration me mory.)

Note that there are restrictions on w hat characters can be included in the configuration me mory names. Only the letters of the alphabet and numerals should be used.

./Advanced/1-for-1/Receive fail switchover: [Off] New :[On]

Edit/Memories : 1Store 2Re call 3Erase

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7.3.4 View Menu

In general, the View menu provides access to a summary of the information entered via the Edit menus. Consequently, these menus are not described in detail here.

The menu contains the follow ing options:

• Unit. This submenu contains manufacturing information such as model number, serial number, software version, firmw are version and details of the modem hardw are configuration.

• SAF. This displays details of which software activated features are currently active, which are disabled, the number of SAF test shots remaining and the remaining SAF test shot period before the temporary SAF features time out.

• Monitor. This provides access to transmit, receive and unit information that is continually updated, including the data rates at diff erent points in the transmit and receive processing chain, pow er supply levels, modem interna l temperature and mod em loopback status.

• Alarms. This provides access to transmit, receive and unit current alar m informat ion. Note that entering 0 clears any existing latched alarm.

• Log. This provides access to the system log. This includes a list of all notable events that have occurred including alarms. Entries are timestamped. Note that entering 0 clears the log.

• Config. This provides access to summaries of the transmit, receive and unit settings.

View : 1:Unit 2:SAF 3:Monitor 4:Alarm s 5:Log 6:Config

View : 1Unit 2SAF 3Monitor 4Alarms 5Log 6Config

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7.3.5 Test Me nu

The menu contains the follow ing options:

• Loopback. This allows selection of internal loopback betw een the transmit and receive paths, at different points in the processing chain. This provides a convenient way of checking modem operation in isolation from other equipment. Local loopback refers to returning local signals traveling w ithin the modem in the direction of the satellite, back tow ards the terrestrial interface. Remote loopback ref ers to returning 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 and filled w ith PRBS data. The receiving end attempts to synchronize w ith the data stream and check each packet for errors.

• RF. This provides two types of signal – a CW (pure carrier) signal and an alternate 1,0 signal – that can be used to test modem operation.

Test-Loopback Screen

Test: 1Loopback 2BER test 3RF

Loopback: [Off ] New : Off

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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.

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7.3.5.1 Test-BER Te st Menu

This menu contains the following options:

• Tx. This allows the setup of the internal Pseudo-Random-Bit-Sequence (PRBS)

Bit Error Rate (BER) Tester for the Tx path.

• Rx. This allow s the setup of the internal PRBS BER Tester (BERT) for the Rx

path.

• Results. This screen displays the BER test 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 tester off.

Sw itches the BER tester on.

Factory default: Off

Description: Controls the BER test mode.

Test/BER te st: 1Tx 2 Rx 3Re s ults

Test/BER/Tx/BER m ode: [Off]

New :[On]

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Test-BER-Tx-Results Screen

The BERT show s the instantaneous test pattern synchronisation status. When the Rx path is synchronised to the incoming Tx test pattern then this w ill display ‘Sync OK’ and when synchronisation is lost it w ill display ‘NO SYNC’.

The Time field ind icates the elapsed time since the test w as started or restarted.

The Loss# f ield is a count of the number of times that pattern synchronisation has been lost since the test started.

The 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 eff ect of incrementing the number of bit errors by one.

The Restart test option is used to restart the BER test including clear ing all of the error counts. Pressing the Back key returns the display to the previous results screen.

BERT :Sync OK Time:40.0mins

Loss #:1 Errors:3 BER:1.0E-6

Test/BER te st/Results: 1Inject error 2Restart test

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Test-RF-Modulator CW Screen

Factory default: Off

Description:

Selecting Tx CW causes a pure carrier to be transmitted rather than the

normal modulated carrier. This is useful for evaluating phase noise and

spurious, but should no

t be used over a live satellite link w ithout the

operator’s permission.

Test-M odulator-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 mod ulator but should not be used over a live satellite link.

Test/RF/Modulator CW: [Off]

New :[On]

Test/RF/Modulator alternate 1,0: [Off]

New :[On]:

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