Paradise Datacom Quantum, Evolution Installation And Operating Handbook

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Installation and Operating Handbook for

Quantum and Evolution

Series Satellite Modems

Issue 1.9.86, 28 July 2010

2010

EN 55022 - Class B

EN 55024 EN 60950

Paradise Datacom Ltd. Paradise Datacom LLC

1 Wheaton Road 328 Innovation Blvd.

Witham, Essex, CM8 3UJ, England. State College, PA 16803, U.S.A.

Tel: +44(0)1376 515636 Tel: +1 814 238 3450

Fax: +44(0)1376 533764 Fax: +1 814 238 3829

http://www.paradisedata.com

Quantum and Evolution Series Installation and Operating Handbook

Table of Contents

Chapter 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 Power Up.............................................................................................................. 5-1

Chapter 6 Introduction ............................................................................................ 6-1

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

6.1 Overview .............................................................................................................. 6-1

6.2 Hardware Options ................................................................................................ 6-2

6.2.1 IDR Option Card ........................................................................................... 6-2

6.2.2 G.703 Option Card ....................................................................................... 6-2

6.2.3 LVDS Option Card ........................................................................................ 6-2

6.2.4 HSSI Option Card ......................................................................................... 6-2

6.2.5 Quad E1 Option Card ................................................................................... 6-2

6.2.6 Eurocom D1 Option Card ............................................................................. 6-3

6.2.7 IP Traffic Option Card ................................................................................... 6-3

6.2.8 Optional L-band BUC Power Supplies ......................................................... 6-4

6.2.9 L-band FSK/DC Option Card ........................................................................ 6-6

6.3 Software Options .................................................................................................. 6-6

6.4 Front Panel ......................................................................................................... 6-12

6.4.1 LEDs ........................................................................................................... 6-12

6.4.2 LCD Display ............................................................................................... 6-12

6.5 Rear Panel ......................................................................................................... 6-14

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

7.1 User Names, Passwords and Modem Control ..................................................... 7-1

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

7.1.2 Giveaway Mode ............................................................................................ 7-1

Quantum and Evolution Series Installation and Operating Handbook

7.1.3

Takeaway 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

7.3.1 Main Menu .................................................................................................... 7-6

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

7.3.3 Edit Menu ................................................................................................... 7-14

7.3.4 View Menu ................................................................................................ 7-157

7.3.5 Test Menu ................................................................................................ 7-157

7.4 Web User Interface .......................................................................................... 7-167

7.4.1 Logging In and Out ................................................................................... 7-167

7.4.2 Graphing Features ................................................................................... 7-170

7.4.3 Configuration Memories ........................................................................... 7-175

7.4.4 Interface Configurations ........................................................................... 7-177

7.4.5 Timeslots .................................................................................................. 7-178

7.4.6 System Log .............................................................................................. 7-179

7.4.7 System Alarms ......................................................................................... 7-180

7.4.8 On-line Installation and Operation Handbook ........................................... 7-180

7.4.9 SAF Screen .............................................................................................. 7-181

7.4.10 SNMP Configuration ................................................................................. 7-182

7.4.11 Remote Software Upgrade ....................................................................... 7-183

7.4.12 EZ BERT Option ....................................................................................... 7-186

7.4.13 Modem Email Function ............................................................................. 7-188

7.4.14 IP Static Routes ........................................................................................ 7-191

7.4.15 Header Compression ............................................................................... 7-192

7.4.16 Fetching Web Pages from a Remote Modem .......................................... 7-194

7.4.17 Adaptive Signal Pre-distorter .................................................................... 7-194

Chapter 8 Modem Concepts ................................................................................... 8-1

8.1 Doppler, Plesiochronous Buffering and Clocking ................................................. 8-1

8.1.1 Transmit Clocking ......................................................................................... 8-2

8.1.2 Receive Clocking .......................................................................................... 8-4

8.1.3 Guidelines for Clocking Configuration .......................................................... 8-6

8.2 Framing and Drop/Insert Overview .................................................................... 8-10

8.2.1 IBS/SMS Framing ........................................................................................... 8-10

8.2.2 IDR Framing .................................................................................................... 8-17

8.3 Automatic Uplink Power Control ......................................................................... 8-18

8.3.1 Introduction ................................................................................................. 8-18

8.3.2 Configuring AUPC ...................................................................................... 8-18

8.4 1-for-1 Operation ................................................................................................ 8-19

8.4.1 Basic Theory .............................................................................................. 8-19

8.4.2 Switching Philosophy ................................................................................. 8-20

8.4.3 Detected Failures ....................................................................................... 8-20

8.4.4 Manual Switchover ..................................................................................... 8-20

8.4.5 1-for-1 Setup Procedure ............................................................................. 8-20

8.5 Software Activated Features .............................................................................. 8-21

8.6 Software Upgrading............................................................................................ 8-22

8.7 Partial Insert and Multi-destinational Working .................................................... 8-22

8.8 Choosing Optimum Custom Reed-Solomon Values .......................................... 8-23

8.9 Data and Symbol Rates ..................................................................................... 8-25

8.10 Determining Maximum ESC Baud Rates ........................................................... 8-26

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Quantum and Evolution Series Installation and Operating Handbook

8.10.1

IBS .............................................................................................................. 8-26

8.10.2 Closed Network Plus ESC .......................................................................... 8-27

8.11 Tutorial on Carrier/Noise and Eb/No Measurements ......................................... 8-29

8.12 IP Functionality ................................................................................................... 8-35

8.12.1 Base Modem IP .......................................................................................... 8-35

8.12.2 IP Addressing ............................................................................................. 8-36

8.12.3 Throughput Performance ........................................................................... 8-37

8.12.4 Jumbo Ethernet Frame Support ................................................................. 8-38

8.12.5 IP Over ESC ............................................................................................... 8-38

8.12.6 IP Interoperability ....................................................................................... 8-39

8.12.7 IP Connectivity Modes ................................................................................ 8-39

8.12.8 TCP Acceleration ....................................................................................... 8-42

8.12.9 Traffic Shaping ........................................................................................... 8-43

8.12.10 HTTP Web Acceleration ......................................................................... 8-49

8.12.11 Static and Dynamic Routing ................................................................... 8-50

8.12.12 Header Compression .............................................................................. 8-50

8.12.13 VLAN Operation ..................................................................................... 8-51

8.12.14 Adaptive Coding and Modulation (ACM) ................................................ 8-52

8.13 DVB-S2 and SmartLink ...................................................................................... 8-54

8.14 Paired Carrier ..................................................................................................... 8-57

8.15 Sat-ABIS............................................................................................................. 8-61

8.16 FastLink Low-latency LDPC ............................................................................... 8-64

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 ............................................................................................. 12-3

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

12.4 Receive Warnings .............................................................................................. 12-5

12.5 Unit Faults .......................................................................................................... 12-7

12.6 Unit Warnings ..................................................................................................... 12-8

12.7 Start up problems ............................................................................................... 12-8

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

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

13.2 Tx Modulator Specifications ............................................................................... 13-3

13.3 Rx Demodulator Specifications .......................................................................... 13-4

13.4 Clocking and Buffering Specifications ................................................................ 13-4

13.5 Framing and Deframing Specifications .............................................................. 13-5

13.6 Intelsat Reed-Solomon Codec and Custom Option Specifications .................... 13-6

13.7 Drop and Insert Option Specifications ................................................................ 13-6

13.8 Extended Drop and Insert Option Specifications ................................................ 13-7

13.9 Advanced ESC and Advanced Aux Option Specifications ................................. 13-8

13.10 IDR Option Specifications .............................................................................. 13-8

13.11 BERT Option Specifications ........................................................................... 13-9

Quantum and Evolution Series Installation and Operating Handbook

13.12

AUPC Specifications .................................................................................... 13-10

13.13 Data Rate Specifications .............................................................................. 13-10

13.14 Traffic Log Specifications ............................................................................. 13-12

13.15 Common Specifications ................................................................................ 13-12

13.16 Internet Traffic .............................................................................................. 13-13

13.17 BUC / LNB facilities ...................................................................................... 13-13

13.18 Performance Graphs .................................................................................... 13-14

Chapter 14 Glossary ................................................................................................ 14-1

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

Quantum and Evolution Series Installation and Operating Handbook

Chapter 1 Welcome

Paradise Datacom is proud to present its next-generation, state-of-the-art Quantum and Evolution Series of satellite modems. Their innovative designs incorporates a novel architecture that uses upgradeable programmable logic for all major modem functions, creating a flexible modem platform easily adapted to future demands. They provide a rich feature set and flexibility of configuration, allowing you to purchase only what you need initially and then enable further features in the field at a later date. They set new levels of usability by adopting multiple language support on all user interfaces as standard (including English, French, German and Spanish).

The Quantum Series of modems incorporate 100% of the functionality and features of the Evolution Series of Paradise modems and are fully backwards compatible. The Quantum extends the functionality of the Evolution by adding both an optional DVB-S2 capability

and a bandwidth 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 bandwidth requirements compared with legacy standards.

DVB-S2 can be used in one of two ways. Firstly, DVB-S2 can be used as a service in its own right (e.g. the modem could be used to provide a DVB-S2 outbound service combined with an SCPC inbound service). Any combination of SCPC and DVB-S2 Tx and Rx services are possible including both being SCPC or both being DVB-S2. Secondly, SCPC features can be overlaid onto DVB-S2 ‘space segment’ to provide all the functionality of traditional SCPC satellite links (such as IBS, IDR, Drop and Insert, ESC channel, AUPC, remote M&C, remote software upgrade, etc.) but with instantly reduced bandwidth requirements. This overlay capability is provided by advanced industry-leading

Paradise software technology called SmartLink. The Quantum therefore provides a

painless migration path to new, more efficient satellite communications technology while fully supporting all legacy SCPC requirements.

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 bandwidth requirements by up to 50%. It is used in addition to, not instead of, other bandwidth saving techniques.

This handbook will guide you through the process of installing and using your Quantum or Evolution Series Satellite Modem. It covers all models including IF and L-band variants.

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Quantum and Evolution Series Installation and Operating Handbook

The models covered by this handbook are:

Paradise Datacom Evolution Series PD10 IF Satellite Modems

Paradise Datacom Evolution Series PD10 L-band Satellite Modems

Paradise Datacom Evolution Series PD25 IF Satellite Modems Paradise Datacom Evolution Series PD25 L-band Satellite Modems Paradise Datacom Evolution Series PD55 IF Satellite Modems Paradise Datacom Evolution Series PD55 L-band Satellite Modems

Paradise Datacom Quantum Series PD20 IF Satellite Modems Paradise Datacom Quantum Series PD20 L-band Satellite Modems

Paradise Datacom Quantum Series PD60 IF Satellite Modems Paradise Datacom Quantum Series PD60 L-band Satellite Modems

Redundancy Switch operation is documented separately – see ‘Installation and Operating Handbook for Quantum and Evolution Series Redundancy Switches’.

The Quantum PD155i Satellite Modem/IP Router is documented in the ‘Installation and Operating Handbook for Quantum PD155i Satellite Modem/IP Router’.

Pour changer la langue à français, choisir

2, 4, 7, 5 sur les menus de modem.

Para cambiar el idioma a español, escoge

2, 4, 7, 5 en los menús del módem.

Um die Sprache zum Deutschen zu ändern,

beschließen Sie 2,4,7,5 auf den Modemmenüs

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Quantum and Evolution Series Installation and Operating Handbook

2.1 Conventions

2.2 Trademarks

Chapter 2 About This Handbook

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

This symbol is intended to alert the user to the presence of important operating instructions critical to correct system function.

All trademarks used in this handbook are acknowledged to be the property of their respective owners.

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 warranty. 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 specifications without prior notice.

2.4 GNU General Public Licence

This product contains software source code distributed under the GNU General Public Licence (GPL). Paradise Datacom fully acknowledges 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 with a request for the ‘Quantum/Evolution Series Satellite Modem GPL Source Code CD’) to Paradise Datacom to cover the cost of preparing and mailing the CD to you.

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Quantum and Evolution Series Installation and Operating Handbook

Chapter 3 Safety Information

PLEASE READ THE FOLLOWING INFORMATION BEFORE

3.1 Safety

To ensure operator safety, this Satellite Modem conforms to the provisions of EMC Low Voltage Directive 2006/95/EC and complies with the following standard:

EN 60950-1:2006 ‘Safety of Information Technology Equipment, Including Electrical Business Equipment’.

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

INSTALLATION AND USE.

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 without means of environmental 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 which 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 with a mains inlet cord suitable for use in the country of operation. In normal circumstances this will be of an adequate length for 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

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Quantum and Evolution Series Installation and Operating Handbook

HOXXX-X ratings on the cable and the connector ends marked with BS1636A (UK free plug 13 amp); BSI, VDE, NF-USE, UL, CSA, OVE, CEBEC, NEMKO, DEMKO, SETI, IMQ, SEV and KEMA-KEUR for 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 mains supply must be made in compliance with local and national wiring regulations for 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 equipment and easily accessible or there should be another suitable means of disconnection from the mains supply.

The equipment is designed to operate from a TN-type power supply system as specified in EN 60950-1 (i.e. a system that has separate earth, line and neutral conductors). The equipment is not designed to operate with an IT power system that has no direct connection to earth.

This unit has double pole/neutral fusing. To ensure operator safety, fuses should always be replaced with identical type and rating – contact Customer Technical Support for details.

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Quantum and Evolution Series Installation and Operating Handbook

Chapter 4 Electromagnetic Compatibility

This Satellite Modem conforms to the provisions of EMC Directive 2004/108/EC and complies with the following standards:

1. Emissions: EN 55022:2006 Class B – ‘Information Technology Equipment – Radio Disturbance Characteristics – Limits and Methods of Measurement’.

2. Immunity: EN 50024:1998+A1:2001+A2:2003 – ‘Information Technology Equipment – Immunity Characteristics – Limits and Methods of Measurement ’.

Extensive testing has been performed to ensure that the unit meets these specifications when configured with any or all of its available hardware options.

To ensure that the modem maintains compliance with electromagnetic compatibility standards please observe the

The equipment must be operated with 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 with the requirements of VDE 0871 and FCC 20708, providing at least 40dB of attenuation from 30 MHz to 1 GHz. A good quality cable with a continuous outer shield, correctly grounded, must be used.

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

following points:

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Quantum and Evolution Series Installation and Operating Handbook

Chapter 5 Installation

5.1 Unpacking

Prior to unpacking, inspect the exterior of the shipping container for any sign of damage during transit. If damage is evident, contact the carrier immediately and submit a damage report.

Carefully unpack all items, taking care not to discard packing materials, particularly the molded foam inserts. Should the unit need to be returned to Paradise Datacom then you should use the original packing carton as it is designed to provide the necessary level of protection during shipment.

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 power level can be controlled using the front-panel menus. The optimum input level for the demodulator is –45dBm ± 15dB.

5.4 Power Up

Power the unit and wait for it to complete its nitialization when it will display summary status information.

For local use, from the front-panel menu, select Main, Edit, All to define all parameters

prior to operation.

It is also possible to set up the unit from a web browser (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.

Getting started is covered in more detail in the separate Evolution/Quantum Modem Quick Start Guide (application note EVO_AN_009).

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Quantum and Evolution Series Installation and Operating Handbook

Chapter 6 Introduction

6.1 Overview

The Quantum and Evolution Series Single-Channel-Per-Carrier (SCPC) satellite modems are designed for both open and closed network operation in a variety of environments (such as ground stations and mobile and fly away terminals) providing a data link between geographically distant sites via satellite.

Features include:

• Open network Intelsat IBS to IESS-309 and IESS-310 and Intelsat IDR to IESS308 and IESS-310, plus Eutelsat SMS to EESS 501.

• DVB-S2 (EN 302 307) operation (Quantum only).

• Closed network modes (with and without overhead) including OM-73 support.

• Various custom framing modes.

• Drop and Insert (D&I) via T1-D4, T1-ESF and G.732 bearer types.

• IF frequency range of 50 to 90MHz and 100 to 180MHz; L-band frequency range

of 950MHz to 2050MHz.

• Variable data rate between 4.8kbps and 55Mbps (model specific).

• Support for BPSK, QPSK, Offset QPSK, 8PSK, 16QAM, 16APSK and 32APSK

modulation schemes.

• Forward Error Correction (FEC) options of Viterbi, Sequential, Trellis Coded Modulation (TCM), Turbo Product Code (TPC) and FastLink low-latency Low Density Parity Code (LDPC) as well as DVB-S2 compliant FEC (model specific).

• Concatenated Reed-Solomon (RS) and Bose-Chaudhuri-Hocquenghem (BCH) outer FEC (model specific).

• A full range of terrestrial interfaces including RS422, V.35, RS232, (Synchronous and Asynchronous) LVDS, HSSI, Eurocom D1, Ethernet/Internet Protocol (IP) and G.703 (T1/E1, T2/E2 and T3/E3). There is also a G.703 variant that multiplexes and demultiplexes four E1 interfaces and can be used in a MultiMux configuration, which multiplexes serial data, G.703 and IP traffic. A multiple E1 Sat-Abis interface is available for direct connection to an Abis interface between a GSM BTS and BSC, compressing voice traffic by up to 50%.

• Automatic Uplink Power Control (AUPC) that causes automatic adjustment of the modem output power to maintain a constant Eb/No at the distant end of the satellite link.

• 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 including: built-in web pages served from the modem’s embedded web server to any supported web browser; the Simple Network Management Protocol (SNMP); a standard Telnet protocol session where the user communicates using a Telnet client terminal-emulation program.

• Compact 1U chassis, 405mm deep.

• An extensive set of TCP/IP features including TCP acceleration, header

compression, web acceleration, bridging, static and dynamic routing, DHCP, IEEE

802.1p QOS support, IEEE 802.1q VLAN support, traffic shaping, etc.

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Quantum and Evolution Series Installation and Operating Handbook

6.2 Hardware Options

Note that an EIA530 card providing selectable RS422, X.21, V.35 and RS232 interfaces via a 25-way D connector is fitted as standard.

Three interface positions are available. The upper interface position (1) supports an EIA530 or an IDR card only. The lower interface position (2) supports any card except IDR. Interface position (3) supports unbalanced G.703 (two BNCs) only. Balanced G.703 is available via the EIA530 card in either interface position 1 or position 2.

6.2.1 IDR Option Card

The IDR option card (part number P3701) provides an IDR capability including two 32kbps ADPCM ESC audio channels, multiple backward alarm support and independent ESC and Auxiliary ports that replace the shared ESC/Aux port on the base unit. The IDR card fits in interface position 1 (upper) at the rear of the modem.

6.2.2 G.703 Option Card

The G.703 option card (part number P3702) provides G.703 E1/T1, E2/T2 and E3/T3 support. The G.703 card fits inside the modem (leaving both interface positions 1 and 2 free) and makes use of either the EIA530 connector in interface position 1 or 2 for balanced signals or BNC connectors (interface position 3) for unbalanced signals.

6.2.3 LVDS Option Card

The LVDS option card (part number P3001) provides LVDS on a D25 female connector. The LVDS card fits in interface position 2 (lower) at the rear of the modem.

6.2.4 HSSI Option Card

The HSSI option card (part number P3705) provides the modem with a High Speed Serial Interface with an industry standard 50-way SCSI-2 type DCE connector, supporting data rates of up to 55Mbps. The HSSI card fits in interface position 2 (lower) at the rear of the modem.

6.2.5 Quad E1 Option Card

The Quad E1 option card (part number P3706) supports four synchronous G.703 HDB3encoded balanced RJ45 interfaces. Drop and insert of up to 32 timeslots is provided on all four interfaces, alternatively full E1 bearers are also supported.

The combination of drop and insert plus full bearers allows any data rate to be selected between 64kbps and 8448kbps in multiples of 64kbps. The data is multiplexed onto a single carrier using an IBS/SMS frame format that ensures extremely efficient use of satellite bandwidth with no bandwidth being wasted at any data rate.

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Quantum and Evolution Series Installation and Operating Handbook

The Quad E1 card is set up and used in a similar way to the G.703 option card. Following

selection of the Quad E1 card as the terrestrial interface via the Edit-Unit-Interface-

Terrestrial screen (Section 7.3.3.3.2), two menus (Edit-Tx-Interface, Section 7.3.3.1.8 and Edit-Rx-Interface, Section 7.3.3.2.9) can be used to set up the Tx and Rx paths,

respectively, of each port of the Quad E1 card.

The P3706 Quad E1 interface card not only provides all the above functionality, but if the

MultiMux (Mux SAF) feature has also been purchased and enabled, then G.703, serial

data and IP traffic may be multiplexed together to form one aggregate satellite carrier. Multimux is explained in a separate document ‘Multimux Data Multiplexer Option’ (application note 205348) available in the Evolution modem documentation area of

http://paradisedata.com

. It allows up to two E1s to be amalgamated with up to 2Mbps of IP and up to 2Mbps of EIA530 onto a single carrier. Up to three E1s can be used if amalgamating only one of IP or EIA530.

6.2.6 Eurocom D1 Option Card

There are two versions of the Eurocom option card.

The P300-compatible Eurocom D1 option card (part number P3709) provides a•Eurocom D interface, data rates of 16 to 2048kbps, AMI coding, Eurocom G interface at 16 or 32kbps on a 25-pin D male connector.

The Eurocom D1/EIA530 option card (part number P3713) provides Eurocom D interface, data rates of 16 to 2048kbps, Eurocom G interface at 16 or 32kbps as well as EIA530 signals on the same connector, supporting RS422, X.21, V.35, RS232 and balanced G.703. It uses a 25-pin D female connector.

6.2.7 IP Traffic Option Card

An Ethernet traffic interface is always available on the base modem as detailed in Section

6.5. This provides a basic level of IP operation (typically it can handle up to 5Mbps of UDP data or 10Mbps of TCP data).

For more demanding applications, the IP Traffic option card (part number P3714) supports TCP acceleration up to the maximum data rate for the modem (compared to the base modem acceleration of up to 10Mbps) via two RJ45 Ethernet 10/100/1000 (GigE) BaseT connectors. The card supports up to 5000 concurrent TCP connections and typically achieves bandwidth utilization of around 90%. It also supports HTTP acceleration, which downloads typical web pages up to 30% faster on average.

The IP Traffic card can handle up to 50 000 packets per second, compared to the IP processing built into the base modem, which has a limit of 10 000 packets per second).

The IP Traffic card automatically selects speed and duplex but these can also be controlled via the menus.

Bridging, static routing and dynamic routing are all supported on both the base modem or the IP traffic card, depending on what is fitted.

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Quantum and Evolution Series Installation and Operating Handbook

On the IP Traffic card, UDP and IP header compression compliant to RFC3095 (ROHC – Robust Header Compression) is supported at throughput rates up to 29000 packets per second. ROHC is recognised as the best performing of all header compression schemes (including IPHC and CRTP) and is the most suitable for satellite. It typically compresses the 28 bytes of UDP and IP headers down to between one and three bytes. Proprietary Ethernet header compression is supported in addition and typically reduces 14 bytes of Ethernet frame down to 1 byte.

Note that the IP Traffic card is dedicated to processing IP satellite traffic only – remote IPbased M&C, including SNMP and access to the modem web server, continue to be supported via the base modem RJ45 M&C connector only.

New IP features available as software upgrades are constantly in development – please contact Customer Technical Support for up to date details.

6.2.8 Optional L-band BUC Power Supplies

The following PSU options are available for powering BUCs:

Part Number BUC PSU

P3531 100W 48V output P3535 180W 48V output P3532 100W 24V output P3536 180W 24V output P3537 +/-48V input, 180W 48V output P3538 +/-48V input, 180W 24V output P3539 +48V input, 180W 48V output

Type

A.C. in/D.C. out A.C. in/D.C. out A.C. in/D.C. out A.C. in/D.C. out D.C. in/D.C. out D.C. in/D.C. out D.C. in/D.C. out

Optional BUC Power Supplies

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Quantum and Evolution Series Installation and Operating Handbook

The following table shows what BUC PSUs are suitable for a range of available BUC types.

PSU Required Paradise ODU PSU

Manufacturer & BUC Type

Terrasat 5W C-band IBUC

Terrasat 10W C-band IBUC

Terrasat 4W Ku-band IBUC

Terrasat 8W Ku-band IBUC

NJR 1W C-band 5665 & 5666 NJR 2W C-band 5667 & 5668 NJR 5W C-band 5669 & 5670 24V 55W -

NJR 10W C-band 5662 & 5663

NJR 1W Ku-band 5015 NJR 1W Ku-band 5075 NJR 1.5W Ku-band 5035 NJR 2W Ku-band 5076 & 5016 NJR 3W Ku-band 5037 NJR 4W Ku-band 5077 & 5017 24V 48W -

NJR 8W Ku-band 5018

Codan 5W C-band 6705

Codan 10W C-band 6710 48V 105W Codan 20W C-band 6720 48V 130W -

Codan 4W Ku-band 6904

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

Paradise 10W C-band VSAT BUC

Paradise 20W C-band VSAT BUC

Paradise 8W Ku-band VSAT BUC

Paradise 10W Ku-band VSAT BUC

Voltage Wattage Current 24V 48V

24V 72 3A 48V 72 1.5A 24V 108 4.5A 48V 96 2A 24V 72 3A 48V 72 1.5A 24V 120 5A 48V 120 2.5A 24V 30W 24V 37.5W - P3532 -

24V 130W 48V 130W 24V 25W 24V 18W 24V 24W 24V 37.5W 24V 30W -

24V 170W 48V 170W 24V 60W 48V 60W -

24V 80W 48V 80W -

24V 120 5A 48V 120 2.5A 24V 144 6A P3536 - 48V 144 3A - P3535 24V 111 4.6A 48V 111 2.3A 24V 120 5A 48V 120 2.5A

P3532 -

- P3531

P3536 -

- P3535

P3532 -

- P3531

P3536 -

- P3535

P3532 -

P3532 P3536 -

- P3535 P3532 P3532 P3532 P3532 P3532 P3532 P3536 -

- P3535 P3532 -

- P3531

- P3535

- P3535 P3532 -

- P3531

- P3535 P3536 -

- P3535

P3536 -

- P3535 P3536 -

- P3535

Paradise BUC Power Supplies

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Quantum and Evolution Series Installation and Operating Handbook

6.2.9 L-band FSK/DC Option Card

An FSK/DC option card (part number P3503) is available for performing FSK communications with 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 switching capability to the BUC. If FSK communications are not required, then a cheaper option card, namely, the DC Switch card (part number P3509) is available.

6.3 Software Options

There are a number of software options available as shown in the table below. These can be ordered at the time of the original purchase or can be activated in the field. The mechanism that provides access to these features is called Software 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 which 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 following are provided as standard in the modem: Tx, Rx, DR0, DR1, IRS, VIT, WIF, AUPC, HCP and ESC.

Feature SAF Code Description

Transmit TX Controls access to the Tx service and is therefore

required for any transmission to occur.

Receive RX Controls access to the Rx service and is therefore

required for any receive processing to occur. Terrestrial data rate 0 to 2048kbps Terrestrial data rate 2048kbps to 8448kbps Terrestrial data rate 2048kbps to 5Mbps Terrestrial data rate 5Mbps to 8448kbps Terrestrial data rate 8448kbps to 16896kbps Terrestrial data rate 16896kbps to 25Mbps Terrestrial data rate 25Mbps to 45Mbps Terrestrial data rate 45Mbps to 55Mbps (Evolution PD55) or 60Mbps (Quantum PD60)

DR0 Enables data rates in the given range (inclusive).

DR1 Enables data rates in the given range (inclusive).

D1L Enables data rates in the given range (inclusive).

D1H Enables data rates in the given range (inclusive).

DR2 Enables data rates in the given range (inclusive).

DR3 Enables data rates in the given range (inclusive).

DR4 Enables data rates in the given range (inclusive).

DR5 Enables data rates in the given range (inclusive).

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Quantum and Evolution Series Installation and Operating Handbook

Feature SAF Code Description

IBS/SMS IBS Enables Tx and Rx IBS/SMS service. Drop/Insert DI Enables basic transmit and receive T1/E1

Drop/Insert options including Rx terrestrial bearer

origination and the ability to replace dropped

timeslots with idle code. Extended Drop/Insert EDI Enables selection of extended Tx and Rx

Drop/Insert options (processing of E1 Channel

Associated Signalling in timeslots 16 and 48,

timeslot identity maintenance allowing all possible

number of timeslots, partial timeslot insertion, T1

Robbed Bit Signalling and timeslot reordering). Viterbi VIT Enables the Viterbi FEC scheme. Intelsat RS IRS Enables the selection of the Intelsat Reed-

Solomon outer FEC. Wideband IF WIF Enables selection of IF frequencies between 104

and 176MHz. 8PSK 8PSK Enables selection of 8PSK modulation. 16QAM 16QAM Enables selection of the 16QAM FEC scheme. Turbo Low Rate TPCL Enables selection of the TPC FEC scheme at

terrestrial data rates up to and including 10Mbps. Turbo High Rate TPCH Enables selection of the TPC FEC scheme at all

terrestrial data rates. Advanced ESC ESC Enables selection of the high-rate asynchronous

ESC channel in IBS/SMS mode and

asynchronous ESC access to the IDR 8kbps

synchronous ESC channel, as well as enabling

selection of Closed network plus ESC mode. Advanced Aux AUX Enables the replacement of one or both IDR

32kbps ADPCM audio channels with Aux data. Custom features CUS Enables custom RS N, K and interleaver depth

selection; selection of IBS/SMS high-rate

asynchronous ESC maximum overhead usage

mode; custom selection of IDR framing (high/low

rate) format; customisation of the standard

96kbps IDR overhead to allow one or both audio

channels to be omitted or allocated in a custom

manner (allowing: 1x32k in V1 or 2x16k in V1 with

V2 spare or omitted depending on Aux settings;

both V1 and V2 spare or omitted depending on

Aux settings). AUPC AUPC Enables AUPC operation (additionally requires

ESC feature). Note that P300 emulated AUPC

requires PAUPC SAF to be present. PRBS PRBS Enables the internal Pseudo Random Bit

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

modulated signal multiplexed onto the IF cable.

Software Activated Features (continued)

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Quantum and Evolution Series Installation and Operating Handbook

Feature SAF Code Description

TCP acceleration at throughput rates up to

TCP Enables a Performance Enhancing Proxy that

provides acceleration of TCP data over satellite. 10Mbps Ethernet brouting BRT Enables Ethernet brouting function (which

supports IP traffic point-to-multipoint operation

and the use of an indirect return path). OM-73 OM73 Enables the OM-73 service including the OM-73

scrambler, symbol mapping and Viterbi

compatibility. Audio AUD Enables P1348 emulation via the IDR card that

allows IBS 64kbps carrier (2 audio channels) or

128kbps (2 audio and 64kbps data). TCM TCM Enables the TCM FEC scheme. This feature is

provided with 8PSK. TCP acceleration at throughput rates up to 16Mbps

TCP16 Enables a Performance Enhancing Proxy that

provides acceleration of TCP data over satellite.

This level of acceleration is available only with the

IP Traffic option card. TCP acceleration at throughput rates up to 25Mbps

TCP25 Enables a Performance Enhancing Proxy that

provides acceleration of TCP data over satellite.

This level of acceleration is available only with the

IP Traffic option card. TCP acceleration to 55Mbps (Evolution PD55) or 60Mbps (Quantum PD60) Quad E1 option card second E1 port Quad E1 option card third E1 port Quad E1 option card fourth E1 port

TCP55 Enables a Performance Enhancing Proxy that

provides acceleration of TCP data over satellite.

This level of acceleration is available only with the

IP Traffic option card.

2E1 Enables the second E1 port on the Quad E1

option card.

3E1 Enables the third E1 port on the Quad E1 option

card.

4E1 Enables the fourth E1 port on the Quad E1 option

card. Header compression HCP Enables Ethernet frame header compression on

the base modem. Header compression HCP2 Enables UDP, IP and RTP packet header

compression at throughput rates up to 29000

packets per second. This is available only with the

IP Traffic option card. MultiMux MUX Enables the multiplexer associated with the Quad

E1 card allowing G.703 data, serial data and IP to

be multiplexed together into one aggregate

satellite carrier. Serial and IP data nominally

replace Quad E1 ports 3 and 4 (it is not necessary

to purchase the 3E1 and 4E1 SAFs in order to

use MultiMux).

Software Activated Features (continued)

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Quantum and Evolution Series Installation and Operating Handbook

)

Feature SAF Code Description

Web acceleration WEB Enables accelerated browsing using HTTP

(requires the modem to be fitted with a P3714 IP

traffic card). Sequential FEC SEQ Enables Sequential FEC up to a maximum of

2Mbps. Wideband L-band WRF Enables selection of additional L-band

frequencies between 1950MHz and 2050MHz. IP terrestrial IPT Enables IP Terrestrial base modem interface for

PD10 Modem G.703 clock extension CLK

When enabled provides a high stability G.703

(T1 or E1) timing reference to the distant end of

LDPC FEC LDPC5

a satellite link.

Enables LDPC FEC scheme to a maximum

data rate of 5Mbps.

LDPC FEC LDPC10

Enables LDPC FEC scheme to a maximum

data rate of 10Mbps.

LDPC FEC LDPC25

Enables LDPC FEC scheme to a maximum

data rate of 25Mbps.

LDPC FEC LDPC55

Enables LDPC FEC scheme to a maximum

data rate of 55Mbps (Evolution PD55) or

60Mbps (Quantum PD60).

Adaptive signal predistorter

Dynamic routing RTG Enables choice of RIP, OSPF and BGP dynamic

DVB-S2 Tx DVB2T Enables DVB-S2 Tx operation (includes

DVB-S2 Rx DVB2R Enables DVB-S2 Rx operation (includes

DVB IP DVBIP Enables MPE, ULE and (Paradise proprietary)

VCM (Quantum modems only)

ASP Allows 16QAM constellations to be adaptively

predistorted to counter the effects of nonlinear

distortion in the communications path. Requires

modem hardware above a certain revision

number – please contact Customer Technical

Support for details.

routing.

SmartLink).

SmartLink

PXE DVB over IP encapsulation (requires P3714

IP Traffic card). Quantum modems only.

VCM DVB-S2 Variable Coding and Modulation mode,

allowing each stream in point-to-multipoint IP with

a shared outbound carrier to use a different

modulation and FEC rate, specific to each remote

modem.

Software Activated Features (continued)

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Quantum and Evolution Series Installation and Operating Handbook

ge (

Feature SAF Code Description

IP traffic shaping SHP Provides guaranteed throughput levels for specific

IP streams, using standard Committed

Information Rate and Burst Information Rate

settings. Stream differentiation is by IP address,

IEEE 802.1p priority class, Diffserv DSCP class or

MPLS EXP field. Paired Carrier data rate 56kbps to 512kbps

PCMA Enables Paired Carrier data rates in the given

range (inclusive). Incorporates ViaSat’s patented

PCMA technology. Subject to a minimum of

30kHz of signal cancellation in terms of occupied

bandwidth. Paired Carrier data rate 512kbps to

PCMB Enables Paired Carrier data rates in the given

range (inclusive).

1.024Mbps Paired Carrier data rate 1.024Mbps to

PCMC Enables Paired Carrier data rates in the given

range (inclusive).

2.5Mbps Paired Carrier data rate 2.5Mbps to 5Mbps Paired Carrier data rate 5Mbps to 10Mbps Paired Carrier data rate 10Mbps to

PCMD Enables Paired Carrier data rates in the given

range (inclusive).

PCME Enables Paired Carrier data rates in the given

ran

inclusive).

PCMF Enables Paired Carrier data rates in the given

range (inclusive). 15Mbps Paired Carrier data rate 15Mbps to

PCMG Enables Paired Carrier data rates in the given

range (inclusive). 20Mbps Paired Carrier data rate 20Mbps to

PCMH Enables Paired Carrier data rates in the given

range (inclusive). 25Mbps Paired Carrier data rate 25Mbps to

PCMI Enables Paired Carrier data rates in the given

range (inclusive). 30Mbps Paired Carrier data rate 30Mbps to

PCMJ Enables Paired Carrier data rates in the given

range (inclusive). 40Mbps Paired Carrier data rate 40Mbps to

PCMK Enables Paired Carrier data rates in the given

range (inclusive). 50Mbps Paired Carrier data rate 50Mbps to

PCML Enables Paired Carrier data rates in the given

range (inclusive). 60Mbps Paired Carrier data rate 60Mbps to

PCMM Enables Paired Carrier data rates in the given

range (inclusive). 80Mbps

Software Activated Features (continued)

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Quantum and Evolution Series Installation and Operating Handbook

Feature SAF Code Description

Paired Carrier data rate 80Mbps to 100Mbps

PCMN Enables Paired Carrier data rates in the given

range (inclusive). Subject to a maximum of

36MHz of signal cancellation in terms of occupied

bandwidth. Paired Carrier data

PCMO Reserved for future use. rate 100Mbps to 155Mbps FastLink LDPC data rate 4.8kbps to 1Mbps FastLink LDPC data rate 1Mbps to 2.5Mbps FastLink LDPC data rate 2.5Mbps to 5Mbps FastLink LDPC data rate 5Mbps to 10Mbps FastLink LDPC data rate 10Mbps to

FL1 Enables FastLink low-latency LDPC data rates in

the given range (inclusive).

FL2 Enables FastLink low-latency LDPC data rates in

the given range (inclusive).

FL3 Enables FastLink low-latency LDPC data rates in

the given range (inclusive).

FL4 Enables FastLink low-latency LDPC data rates in

the

iven range (inclusive).

FL5 Enables FastLink low-latency LDPC data rates in

the given range (inclusive). 20Mbps FastLink LDPC data rate 20Mbps to

FL6 Enables FastLink low-latency LDPC data rates in

the given range (inclusive). 25Mbps FastLink LDPC data rate 25Mbps to

FL7 Enables FastLink low-latency LDPC data rates in

the given range (inclusive). 55Mbps (Evolution PD55) or 60Mbps (Quantum PD60) FastLink LDPC data rate 60Mbps to

FL8 Enables FastLink low-latency LDPC data rates in

the given range (inclusive). 155Mbps (Quantum PD155i only) FastLink 8QAM 8QAM Paradise proprietary 8QAM implementation,

optimized for use with FastLink low-latency LDPC. FastLink 16APSK 16APSK 16APSK implementation, optimized for use with

FastLink low-latency LDPC. Note that this SAF is

not required when using 16APSK with DVB-S2.

FastLink 32APSK 32APSK 32APSK implementation, optimized for use with

FastLink low-latency LDPC. FastLink 64QAM 64QAM 64QAM implementation, optimized for use with

FastLink low-latency LDPC.

Software Activated Features

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Quantum and Evolution Series Installation and Operating Handbook

6.4 Front Panel

Modem Front Panel

The front panel comprises:

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

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

• A keypad for alphanumeric entry and menu selection.

6.4.1 LEDs

The five LEDs display warning and fault information as shown below.

Unit Status Rx Traffic

Tx Traffic Test Mode

Tx Carrier

Off Red

Not used

Rx fault or Rx disabled Tx fault or Tx disabled Normal mode Carrier muted

Unit fault

Not used Not used Not used Not used Not used

Not used

Front Panel LED Status

mbe

Not used

Test mode 1-for-1 standby Carrier active

Green

Unit OK Rx OK

Tx OK

Not used

6.4.2 LCD Display

The backlit LCD is a graphical display formatted to give three 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 operation. These icons are listed below. The contrast is adjustable and the backlight can be switched off or on.

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Quantum and Evolution Series Installation and Operating Handbook

Local (front panel) control LOC

Remote control REM

Keyboard locked

Help screen

Numeric entry mode

Alphabetic entry mode

Modem is on a Tx Edit screen

Modem is on an Rx Edit screen

Front Panel LCD Icons

6.4.2.1 Keypad

The keypad (see the diagram below) is based on a sealed tactile membrane and allows full alphanumeric entry and navigation using arrow keys.

123 Abc

Front Panel Keypad

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Quantum and Evolution Series Installation and Operating Handbook

6.5 Rear Panel

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

Modem Rear Panel

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

IEC Mains Power Connector/Voltage Selector/Fuse

The modem is designed to operate from a mains 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 two fuses, independently fusing 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 power level can be varied from 0dBm to -25dBm.

G.703 BNCs

Two optional BNC connectors may be fitted. These provide an unbalanced G.703 interface.

Tx L-band Output Option

This connector is an N-type female and is of 50 Ω impedance. The output power level can

be varied from –5dBm to –30dBm.

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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 following 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 fault exists. Deferred Alarm: One of the following conditions exists:

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

• The receive Eb/No is lower than the user defined threshold.

• Buffer slips are more frequent than the user set threshold.

• A backward alarm is being received from either the satellite or

terrestrial ports.

Async ESC Connector

This is a 15-pin `D` female connector. When the IDR option is not fitted, it provides an

RS232/RS422/RS485 asynchronous port for either the high rate Async ESC facility (for IBS/SMS or Closed Net Plus ESC services) or the IBS/SMS `low rate Intelsat oversampled ESC facility` (which is configured as the Aux data channel on the modem). When the IDR option is fitted, separate ports for the ESC and Aux channels on the IDR card are activated and ESC/Aux access on this async connector is disabled. This connector also provides the input port for an RS422-compatible Station Clock.

On-line LED

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

Terrestrial Interface Connectors

There are two terrestrial interface connector positions. Supported interface cards include EIA530, LVDS, balanced G.703 (unbalanced G.703 is provided via a third interface position), HSSI, Quad E1, IP Traffic and Eurocom D1.

The IDR option is fitted in the upper interface position with the terrestrial interface in the lower position.

If the G.703 option is fitted, then balanced G.703 supporting T1, E1, T2, E2, T3 and E3 modes is available. Balanced-operation T1(1544kbps, 100Ω), E1 (2048kbps, 120Ω) and T2 (6136kbps, 110Ω) is provided on the EIA530 `D` type connector when G.703 is selected in addition to RS422, V.35 and RS232 EIA530 modes. Unbalanced-operation E1 (2048kbps, 75Ω), T2 (6136kbps, 75 Ω), E3 (34376kbps, 75Ω) and T3 (44376kbps, 75Ω) requires the use of the two BNC connectors in interface position 3. The line impedance and all other parameters are selected via software. The software also selects what happens to the G.703 port when power is removed. Either the G.703 ports can be set to go high impedance (used in 1:1 redundancy operation) or they can be configured to loop the G.703

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Quantum and Evolution Series Installation and Operating Handbook

input back to the output (typically used when Drop/Insert is in operation and the same PCM bearer is cascaded through several modems).

ESC and Aux Connector

This connector is fitted as part of the IDR option and provides access to:

• Four backward alarm form `C` outputs and four backward alarm inputs, together with an Rx summary alarm signal for direct connection to the backward alarm inputs. These are used in IDR mode.

• Two audio ESC ports (4 wire 600Ω, +7 to -16dBm). In addition to normal IDR ESC operation these ports may also be used in IBS modes to generate a 64kbps IBS carrier comprised of two 32kbps ADPCM audio channels or a 128kbps IBS carrier comprised of 64kbps data (from the main data interface of the modem) plus two 32kbps ADPCM audio channels. This is an emulation of the most popular modes of the P1348/P1448 voice/data MUX card often used in SNG applications.

• An RS232/RS422/RS485 port for synchronous/asynchronous ESC traffic. This port replaces the shared ESC/Aux access via the Async ESC connector on the main unit. It is used to provide access to the 8kbps synchronous IDR ESC channel. If the Async ESC feature is available then this port provides both asynchronous access to the 8kbps channel and a high rate asynchronous ESC in IBS/SMS and Closed network plus ESC services.

• An RS232/RS422 port for synchronous/asynchronous Aux traffic. This port replaces the shared ESC/Aux access via the Async ESC connector on the main unit. The Aux port provides 32 or 64kbps access to the IDR overhead in place of one or both of the IDR 32kbps ADPCM audio ESC channels. In IBS/SMS, this port may be configured to provide either the IBS `low rate INTELSAT oversampled ESC facility` or a higher rate synchronous channel within the IBS/SMS overhead.

Rx IF Input Option

This is a BNC female 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 power 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 female 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 composite power level that should be applied to this port is +35dBc up to maximum of -10dBm

Fan

There is a fan that runs at all times while the unit is powered. This draws air in from the sides and expels to the rear. The side vents must not be blocked.

1:1 Redundancy Connector

The Modem has a built-in 1-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 between 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 8.4.

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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 Quantum and Evolution Series Satellite Modems’. The electrical interface can be selected between

RS232 (for direct-to-PC applications) and RS485 (for multidrop applications). The Remote M&C port may be linked under software control to the Async ESC port for distant end remote M&C control over satellite.

Ethernet IP and M&C Connectors

There are two RJ45 auto-sensing 10/100Mbps Ethernet connections. These support both half-duplex and full-duplex operation. One of these can be switched to the main modem traffic channel for sending and receiving TCP/IP data over satellite, while the other is for remote M&C. M&C control can be via the Simple Network Management Protocol (SNMP), an embedded web server that sends web pages to a web browser, a Telnet-style terminal emulation application or via TCP packets that encapsulate Paradise Universal Protocol (PUP) commands. Although the two connectors are labelled for IP traffic and remote M&C respectively, they are in fact interchangeable since the modem acts as an Ethernet bridge (satellite IP traffic and modem M&C messages can use the same single connector if preferred). It is also possible to change the configuration so that the M&C port is removed from the bridge, which may benefit security in some circumstances where it is important to separate the M&C and IP traffic streams.

An M&C IP address, subnet mask and default gateway may be set in the modem. When using TCP acceleration and the M&C interface does not form part of the Ethernet bridge, then a traffic IP address must be set in addition. Note that the modem is not configured 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 when connecting direct to a PC and a crossover cable is required when connecting to a hub or switch). Setting up IP addresses is covered in more detail in Section

8.12.

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 power level of 0dBm or greater. An alternative Station Clock signal at RS422 interface levels can be applied to the Async ESC connector. Either signal can be used by the modem as a reference for the receive output clock (the Station Clock does not have to be the same 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, then 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 for the Tx and Rx IF synthesisers.

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Chapter 7 User Interfaces

The modem has the following user interfaces:

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

• A built-in remote web user interface that provides web pages from the modem (using

a web server) to a web browser.

There are also serial and Ethernet remote control interfaces that allows the built-in interfaces 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 interface (e.g. via a HyperTerminal session) or via Ethernet (e.g. via a Telnet session). The Simple Network Management Protocol (SNMP) v1 and v2c are also supported.

7.1 User Names, P ass wo rd s an d M o dem Co nt rol

The modem can be controlled by either a local user via the local front panel, or a remote web user. In addition, a remote user can either have full control over the modem or be restricted to viewing modem information. Access to the modem is controlled by passwords. These concepts are explained in the following sections.

7.1.1 Local Mode

On shipping from the factory, the modem defaults to Local mode, which allows control of the modem from the front panel interface only. Web users can, however, log in and view the modem settings while 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 obeyed regardless of any user arbitration that is active within the modem – this point should be taken into account when adding new control facilities to

those already built into the modem.

7.1.2 Giveaway Mode

When the modem is switched to Giveaway mode, a remote web user may assume control of the modem.

For remote web browsing, there are two fixed user names, namely, admin and user. The admin user can view and change the modem configuration, while user can only view the modem settings. Only admin can change the two passwords associated with these two

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 remote control users, there is

always an explicit login process, requiring both a valid user name and password to be

entered. Note that remote admin users cannot log in while the modem is in Local mode.

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A user-settable timeout controls for how long the admin user is logged in without any user

entry activity – when user entry is detected then the user session is extended by the

length of the timeout period. An admin user can also choose to log out of the modem,

which has the effect of closing the browser session and allowing another user to control the modem.

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

In Giveaway mode, control is passed to the first admin user that logs in. If an attempt is made to log in as admin when there is already an admin user logged in, then the login will

succeed but the user will have view-only permissions, thereby ensuring there can never be two users in control of the modem at the same time.

In order to allow a switch back to local control from Giveaway mode, when there is no remote admin user logged in, the local front panel interface can gain control at any time simply by issuing a command from the front panel user interface. While a remote admin

user is logged in then the local front panel interface is restricted to viewing modem settings only.

Once a local user has gained control in Giveaway mode, they can then change the

modem back to local control, thereby locking out remote admin users. Note that unless

the switch back is done, local front panel interface control will time out in a similar way to

remote admin users and thereby control may be taken away again by a remote admin

user.

During the period between an admin user logging out and either another admin login or a

command being issued via the local front panel interface to gain control, no user is in control of the modem.

Although there is no explicit login associated with the local front panel interface, there is an implicit login when a key is first pressed. Conceptually, a user at the local front panel

interface is logged in as admin when in Giveaway mode and there is no remote admin user currently logged in, otherwise the local front panel interface is logged in as a viewonly user. In Giveaway mode, the user at the local front panel interface can explicitly log out by pressing the Main key.

7.1.3 Takeaway Mode

In Takeaway mode, either the user at the local front panel interface or a remote admin

user can control the modem at any time. In this mode there is no restriction on the

number of admin users that can be logged in at one time. When the modem is switched out of Takeaway mode to Local mode then all remote admin users will be automatically

logged out. When it is switched from Takeaway to Giveaway, 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 different users are simply interleaved with each other.

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Because of this, Takeaway mode is best used in circumstances where there are clear operational procedures in place to avoid conflicts arising in relation to modem control.

7.2 Front Panel Interface

7.2.1 Keypad Operation

7.2.1.1 Cursor

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

7.2.1.2 Navigation Keys

Menus 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 when entering a numeric value when 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 between menu options by moving the cursor down one

line except when entering a numeric value when it decrements the digit highlighted by the cursor. (Note that when 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

between menu options. When entering an alphanumeric value it moves the cursor to the

preceding digit. The Left arrow key has a special function when viewing the system log,

where it is used to move backwards in the log by 100 entries.

The Right arrow key moves the cursor to the right. On a menu this is used to navigate

between menu options. When entering an alphanumeric value it moves the cursor to the

next digit. The Right arrow key has a special function when viewing the system log, where

it is used to move forwards in the log by 100 entries. (Note that when 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 anywhere 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 further press of the ENTER key is required to move to the next screen (with the exception of the ‘configure all’ function where one press of the ENTER key provides both

steps). Note that when a new value is accepted, it is applied to the modem hardware immediately.

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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 backward to the previous screen.

7.2.1.3 Alphanumeric Keys

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

7.2.1.4 Special Function Keys

Help

Help information can be displayed for any M&C control by holding down 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 function.

Pressing the 0 key and Left arrow key together for a second time removes the Help text

and reverts the display back to its previous contents.

Keyboard Lock

The keypad can be locked against inadvertent use by holding down the 0 key and

pressing the MAIN key together at the same time. Pressing the two keys again at the

same time unlocks the keypad.

LCD Contrast

The contrast of the LCD display can be adjusted by holding down 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 switched off or on by holding down 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 when on the relevant log or alarm display screen.

Buffer Overflow / Underflow clear

The buffer Overflow and Underflow slip counters can be cleared by pressing the 0 key when on the relevant status/demodulator display 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 shown below.

Station clock source: [None] 1:None 2:BNC 3:RS422

Screen Type 1: Menu Selection from Pre-defined List

IF carrier freq:50 to 90, 100 to 180MHz [070.0000] Step 100Hz New: 070.0000

Screen Type 2: Entry of New Value

Note: features that are not available appear on the display are preceded by a ‘#’. There are several reasons why a feature may not be available:

• The feature is a Software Activated Feature (SAF) and the appropriate SAF code has not been enabled. Please contact Paradise Sales who can issue a SAF key to unlock the feature. Alternatively, all SAF features can be enabled for a limited time as described in Section 8.5.

• The feature is ‘advanced’ and the user level setting is ‘basic’. This is a mechanism that has been added to simplify the user interface by hiding options that are less frequently used. Advanced features can be displayed using the process described in Section 7.3.3.3.

• The feature is available but its use is precluded by the current operational modem settings (for example, in normal use, Reed-Solomon ‘n’ and ‘k’ values are controlled automatically and cannot be set by the user).

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7.3 Front Panel Menu Structure

The menu hierarchy for the front panel is described in the following sections.

7.3.1 Main Menu

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

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 following sub-menus:

Status Displays modem operational status summary information. Edit Allows modification of all modem configurable properties. View Displays detailed operational status and read-only configurable property

values.

Test Controls the selection of test modes.

A user-settable Modem Identifier is shown on the bottom 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.

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7.3.2 Status Menu

Front Panel Status Menus

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1:Setup 2:Traffic 3:Demodulator 4:PCMA 5:ABIS 6:Misc 7:AUPC #:1-for-N 9:BUC

The Status menu contains the current modem status split over several screens. Note that

the 1-for-N screen is not available unless the modem is the standby modem in a 1-for-N redundancy switch. The 1-for-N redundancy switch user interface is documented

separately in the document ‘Installation and Operating Handbook for Quantum and

Evolution Series Redundancy Switches’.

Status-Setup Screen

Tx:70.0000MHz Rx:74.0000MHz 2048000bps 2048000bps 4096000sps 4096000sps

This screen is constantly updated with the following information:

• Transmit carrier frequency

• Receive carrier frequency

• Transmit terrestrial data rate

• Receive terrestrial data rate

• Transmit symbol rate

• Receive symbol rate

Status-Traffic Screen

Tx OK since 10:14:46 on 6/4/05 Rx OK since 10:14:46 on 6/4/05 Carrier:Mute-Brk

This screen is constantly updated with the following information:

• When there is no transmit path fault then the message ‘Tx OK since HH:MM:SS on DD/MM/YY’ is displayed (where ‘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.

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• When there is no receive path fault then the message ‘Rx OK since HH:MM:SS on DD/MM/YY’ is displayed (where 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 transmit carrier status, which displays one of the following.

o 'Normal': the carrier is on. o 'Mute-Ext': the carrier is muted due to an alarm detected by the modem

hardware.

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 problem being experienced with 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 power outage. o 'Mute-Flt': the carrier is muted due to an alarm detected by the modem

software.

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.

Status-Demodulator Screen

Eb/No:6.3dB BER:<1.0E-12 Rx power:-33dBm Buffer: 57% Freq offset:0.0Hz O:1 U:0

This screen is constantly updated with the following information:

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

replaced by Es/No (energy per symbol to spectral noise density ratio) when the Down

arrow is selected.

• The receive path final bit error rate (BER). Please note that this figure gives only a crude indication of BER linked directly to the Eb/No measurement. In most instances the actual BER is significantly better when measured using either the internal PRBS BERT or external equipment.

• The receive path power level.

• The receive path buffer fill status.

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

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

• Number of Doppler buffer slips in relation to overflows and underflows (shown on the

display as O and U respectively). The counts can be cleared by pressing the 0 key

while on this screen. The counts are also cleared when the demodulator goes out of

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lock. Note that the Doppler buffer is not used when Satellite clock is selected as the

Rx clock source.

Status-PCMA Screen

PCMA: Locked Offset: 0.02kHz Delay: 262.1ms

This screen shows the status of Paired Carrier.

• PCMA status is shown as Locked when Paired Carrier has locked to one of the

overlapping carriers. Note that when Paired Carrier is enabled, the demodulator cannot

lock until Paired Carrier has locked. PCMA status is shown as Unlocked when Paired Carrier has not managed to lock to a carrier. Please consult the separate Paired Carrier Quick Start Guide for a list of potential causes. If Paired Carrier is disabled then PCMA status will be shown as P C MA disabled.

• The frequency offset between the two interfering overlapped carriers is shown on the second line.

• The measured delay to the satellite is shown on the third line. Once this value is established then the carrier acquisition time can be reduced by setting the Paired Carrier minimum and maximum satellite delays accordingly (it is recommended that these are set to the measured delay -/+0.5ms respectively) via the

Edit/Rx/Carrier/Advanced/PCMA menu.

Status-Misc Screen

ID:London-New York

This screen shows the receive path Eb/No figure (energy per bit to spectral noise density ratio) in large font for easy viewing. It shows the user-settable Modem Identifier on the

bottom line of the screen. Selecting the Down arrow displays the following screen.

Eb/No: >15dB

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Es/No: >15dB

ID:London-New York

This screen shows the receive path Es/No figure (energy per symbol to spectral noise density ratio) in large font for easy viewing. It shows the user-settable Modem Identifier on

the bottom line of the screen. Selecting the Down arrow displays the following screen.

BER: 1.0E-12

ID:London-New York

This screen shows the receive path final bit error rate (BER) in large font for easy viewing. It shows the user-settable Modem Identifier on the bottom line of the screen. Selecting the

Down arrow displays the following screen.

Rx power: -38dBm

ID:London-New York

This screen shows the receive signal power level in large font for easy viewing. It shows the user-settable Modem Identifier on the bottom line of the screen.

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Status-AUPC Screen

Remote Eb/No: 8dB Power offset: 2.1dB Link: OK

This screen is constantly updated with the following information:

• Remote Eb/No: this is the instantaneous Eb/No measured by the remote modem

while AUPC is enabled.

• Power offset: this is the instantaneous offset that has been applied to the modem Tx

power output level to maintain the remote Eb/No at a constant level.

• Link: this is the status of the ESC link, which is used to pass AUPC control messages

to the remote modem and to read back the remote Eb/No level. The status is set to

Failed if the link is not working correctly otherwise the status is shown as OK.

Selecting the Down arrow displays the following screen.

Distant Eb/No: 8dB Target: 10.0+/-0.1dB Delta power: 2.1dB

This screen is constantly updated with the following information:

• Distant Eb/No: this is the instantaneous Eb/No measured by the remote modem while

AUPC is enabled.

• Target: this is the target Eb/No level set for the remote modem.

• Delta power: this is the instantaneous offset that has been applied to the modem Tx

power output level to maintain the remote Eb/No at a constant level.

Selecting the Down arrow displays the following screen.

Limits:+1.0dB -1.0dB Slew: Unlimited Comms loss action: Nominal

This screen shows the following information:

• Limits: this shows the AUPC positive and negative power offset limits – see the Edit- Tx-Carrier-Advanced-AUPC section for more details of how these are used.

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• Slew: this shows the instantaneous slew rate is the target Eb/No level set for the

remote modem.

• Comms loss action: this shows the action to be taken in the event that communications with the remote modem fail – see the Edit-Tx-Carrier-Advanced- AUPC section for more details of the loss action options.

Status-BUC Screen

Output: 40.0dBm Mode: Terminal RF: -15.3dBm BUC: -10.0dB Status: 25ºC Type: 10W 12.8A

This screen is available only on L-band modems. It is updated with the following information:

• Output: this is the output power in dBm at the waveguide flange, or Off if the BUC is

not transmitting.

• Mode: in Terminal (closed loop) mode, this presents the Terminal RF output power

level (i.e. the modem output power to the BUC) and the BUC attenuation level. In open loop mode, Terminal RF and BUC attenuation data is not shown and instead the

mode is shown as Independent.

• Status: this shows the temperature in degrees Centigrade reported by the BUC.

• Type: this field shows the BUC power class in Watts and the BUC current level in

Amperes.

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7.3.3 Edit Menu

Edit: 1:All 2:Tx 3:Rx 4:Unit 5:Memories

This menu contains the following options:

• All. This option leads the user through the most commonly used modem settings,

giving a quick way 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, which allows all of the modem Tx

properties to be changed.

• Rx. This option selects the receive path edit submenu, which allows all of the modem

Rx properties to be changed.

• Unit. This selects the unit edit submenu. This allows 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, which allows the

modem configuration to be saved or a previous configuration to be recalled.

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7.3.3.1 Edit-Tx Menu

Front Panel Edit-Tx Menus

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1:Service 2:Baseband 3:Clocks 4:Modulation 5:FEC 6:Scrambler 7:Carrier 8:Interface

The Edit/Tx menu contains the following options:

• Service. This option allows the selection of the framing mode for the modem.

• Baseband. This option leads to a submenu that allows terrestrial framing, timeslots

and overhead to be configured.

• Clocks. This allows the transmit path clock source to be selected.

• Modulation. This leads to a submenu that allows the modulation scheme to be

configured.

• FEC. This leads to a submenu that contains options for selecting the inner and outer

forward error correction (FEC) schemes.

• Scrambler. This leads to a submenu that allows scrambling to be controlled.

• Carrier. This leads to a submenu that allows the carrier, frequency, power, spectrum

inversion and AUPC (Automatic Power Up-link Control) to be controlled.

• Interface. This submenu is used to configure the Quad E1 interface card and

Multimux Tx path.

7.3.3.1.1 Edit-Tx-Service Screen

Tx service: [Closed] 1:Off 2:Closed 3:Cl+ESC 4:IBS/SMS 5:IDR 6:OM-73 7:DVBS2

Options:

Off

The Tx service is switched off.

Closed network

This mode adds no overhead to the data and is compatible with other closed network equipment. It is provided as part of the base modem.

Closed network plus ESC

This adds the lowest possible overhead to the satellite data to provide whatever ESC rate is selected (the variable-rate ESC channel can provide up to 70% of the main channel rate). It

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also provides a backward alarm facility. Above 32kbps a synchronous scrambler is used in place of the error-multiplying V.35 scrambler normally used on closed networks. This mode supports drop and insert and maintains timeslot identity. This mode is provided as part of the base modem.

IBS/SMS

This is an open network mode where 1/15 framing overhead is added to the data. This mode is compatible with other open network equipment. IBS/SMS mode is described in Section

8.2.1. This mode requires the IBS SAF feature.

IDR

This mode adds 96kbps of framing overhead to the data. This mode is compatible with other open network equipment. IDR mode is described in Section 8.2.2. This mode requires an IDR option card to be fitted.

OM-73

This mode provides OM-73 scrambling, symbol mapping and OM-73 Viterbi compatibility and requires the OM-73 SAF feature.

DVBS2 (Quantum only)

This selects the DVB-S2 service. When selected, a ‘pure’ DVB-S2 service is provided with all SCPC features (such as Drop and Insert, IBS, ESC channel, etc.) disabled.

Note that there are two ways of enabling DVB-S2 and this particular option should be used only for IP, which, through the use of standard IP over DVB encapsulation methods is interoperable at a basic level with other manufacturer’s DVBS2 equipment.

DVB-S2 interoperability with other vendors is not supported when using other terrestrial interfaces and therefore the DVB-

S2 service should not be used. Instead, the SmartLink mode

should be selected from the FEC type menu. If DVB-S2 is required but no SCPC features are required then as well as

selecting SmartLink, the Tx service should be set to Closed network as this does not add any extra framing to that provided by DVB-S2.

Once DVB-S2 has been selected, various other DVB-S2 configuration menu options become available, including choice of modulation and FEC rate, as well as DVB-S2 FEC frame size choice and DVB-S2 pilots.

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Factory default: Off

Description: Framing mode for the Tx path. In general, on the Quantum, all

combinations of SCPC and DVB-S2 services are provided including DVB-S2 outbound with SCPC return, SCPC both outbound and inbound,

DVB-S2 both outbound and inbound, etc. SmartLink mode (see the Edit- Tx-FEC-Inner-FEC screen) allows SCPC features such as Drop and

Insert and the ESC channel to be overlaid on top of DVB-S2, thereby allowing legacy applications to benefit from the bandwidth saving efficiencies and extra robustness of DVB-S2.

Edit-Tx-Service- IDR Frame Format Screen

IDR frame format: [Low-rate T1/E1] 1:Low-rate T1/E1 2:High-rate T2/E2

Options:

Low-rate T1/E1

The 12-bit overhead defined for T1/E1 operation in IESS 308 is used.

High-rate T2/E2

The 4-bit overhead on each of three subframes defined for T2/E2 operation is used.

Factory default:

Low-rate T1/E1

Description: Controls what IDR frame format is used. The frame format for IDR varies

with data rate. T1/E1 rates use one format and T2/E2 use another. This option allows a choice of frame format regardless of the data rate. This menu is displayed following the setting of the Tx Service to IDR.

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7.3.3.1.2 Edit-Tx-Baseband Menu

Baseband: 1:Mode 2:Data rate 3:Audio mode 4:Advanced

This menu contains the following options:

• Mode. This controls the transmit baseband mode.

• Data rate . This sets the terrestrial transmit data rate.

• Audio mode. This controls the audio/data baseband mode format in IBS/SMS

emulation mode. It is possible to generate a 64kbps data stream from the two 32kbps ADPCM audio ports on the IDR card or a composite128kbps data stream can be generated from the two 32kbps ADPCM audio ports plus 64kbps from the main data port.

• Advanced. When the user level is set to Advanced, this allows configuration of framing, timeslots and overhead.

Edit-Tx-Baseband Mode Screen

Options:

Baseband mode: [Continuous] 1:Continuous 2:Drop MUX 3:Audio/data

Continuous

This selects normal continuous data interface operation.

Drop MUX

This requires the Drop and Insert SAF features to be enabled. It processes a T1 or E1 PCM bearer, with Tx data being dropped from specific timeslots of the bearer (on the Rx side, data can be inserted back into the same timeslots or into different timeslots).

Audio/data

This requires an IDR card to be fitted, plus IBS/SMS satellite framing, which provides a P1348 emulation mode. It uses the audio ports normally used for the IDR audio ESC circuit, as the main traffic data. A 64kbps

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carrier can be generated, comprising two 32kbps or a 128kbps carrier can be generated, comprising 64kbps data (from the modem main data interface) plus two 32kbps ADPCM audio channels. These modes emulate the popular P1348/P1448 voice/data MUX card.

Factory default:

Continuous

Description: Mode selection for baseband processing.

Edit-Tx-Baseband-Data Rate Screen

Tx data rate:4800 to 60000000bps [02048000] Step 1bps New: 02048000

DPCM audio channels,

Units: Bps Minimum value: 4800 Maximum value: Modem specific – see datasheet for particular modem model. Step size: 1 Factory default: 2048000

Description: Terrestrial bit rate. This is used in Continuous mode but is automatically

set in other baseband modes.

The upper data rate limit is set according to which SAF data rates have been enabled and is model specific. Note that the full data range is not available in every mode of operation and may be restricted by other settings such as the terrestrial interface type, Framing service, FEC type and FEC rate. If the maximum valid data rate is exceeded then a configuration warning will be generated.

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Edit-Tx-Baseband-Advanced Menu

Advanced: 1:Framing 2:Timeslots 3:Overhead

When the user level is set to Advanced (see the Edit-Unit-Advanced-User Level screen),

this menu allows configuration of framing, timeslots and overhead.

Edit-Tx-Baseband-Advanced-Framing Menu

1:2048k mode 2:CAS 3:TS order 4:Drop mode 5:G732 sig 6:T1 sig 7:CRC

This menu contains the following options:

• 2048k mode. This option is used to indicate whether a continuous 2048kbps traffic

stream is formatted as G.732 or not.

• CAS. This option specifies whether Channel Associated Signalling (CAS) information

is present in Timeslot 16.

• TS order. This controls whether timeslot reordering is allowed.

• Drop mode. This specifies the framing format for Drop MUX operation.

• G732 sig. This option controls whether CAS information is processed and routed

through the satellite.

• T1 sig. This specifies whether Robbed Bit Signalling (RBS) information is present in

the traffic source.

• CRC. This is used to specify whether the terrestrial G.732 frame contains a checksum

that should be checked for errors.

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Edit-Tx-Baseband-Advanced-Framing-2048k Mode Screen

2048k data format: [Unformatted] 1:Unformatted 2:G.732

Options:

Unformatted G.732

Factory default: Unformatted

Description: IBS: G.732 is Intelsat N=30/1920kbps (Sat=2048k) mode, Unformatted is

N=32 (Sat=2184k) mode; IDR and Closed Network + ESC: G.732 aligns satellite frame with terrestrial for distant-end partial insert, Unformatted uses an arbitrary point for frame insertion.

Edit-Tx-Baseband-Advanced-Framing-CAS Screen

G.732 CAS signalling: [No CAS] 1:CAS 2:No CAS

Options:

CAS

When CAS is selected, the CAS will be conveyed from end-to-end of the

link using the IBS overhead.

No CAS

This indicates that a terrestrial CAS multiframe and ‘abcd’ signalling nibbles for each timeslot are not present. Consequently, Timeslot 16 may be dropped/inserted in a similar manner to other timeslots.

Factory default:

No CAS

Description: For G.732 bearer operation, specifies whether Channel Associated

Signalling information is present in Timeslot 16.

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Edit-Tx-Baseband-Advanced-Framing-TS Order Screen

Remap timeslot order: [Do not map] 1:Do not map 2:Map

Options:

Do not map

Do not allow timeslots to be reordered.

Map

Allow timeslots to be reordered.

Factory default: Do not map

Description: Controls whether timeslots can be reordered within the G.732 frame prior

to transmission. In some applications, this feature can remove the need for separate Digital Access Cross Connect (DACCs) equipment that is used to re-arrange timeslots.

Edit-Tx-Baseband-Advanced-Framing-Drop Mode Screen

Drop bearer format: [G.732] 1:G.732 2:T1-D4 3:T1-ESF

Options:

G.732 T1-D4 T1-ESF

Factory default: G.732

Description: Bearer type selection for Drop MUX operation.

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Edit-Tx-Baseband-Advanced-Framing-CAS in TS16 Screen

Process CAS in TS16: [No CAS] 1:No CAS 2:CAS

Options:

No CAS CAS

Factory default: No CAS

Description: Controls whether CAS information is processed and routed through the

satellite.

Edit-Tx-Baseband-Advanced-Framing-T1 RBS Screen

T1 signal contains RBS: [No RBS] 1:No RBS 2:RBS

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Options:

No RBS

Robbed bit signalling is not in operation or can be ignored.

RBS

Robbed bit signalling is in use, with the least significant bit of each timeslot being used for signalling in frames 6 and 12 (D4) or 6, 12, 18 and 24 (ESF) of the terrestrial multiframe.

Factory default:

No RBS

Description: Specifies whether Robbed Bit Signalling information is present in the

traffic source. When selected, drop/insert data is placed into the bearer by the insert MUX in the same frames from which it came. It is still possible to drop from and insert into different timeslots, however, the data frames containing RBS are placed in the same relative positions within the terrestrial multiframe by the Insert MUX in order to preserve RBS.

Edit-Tx-Baseband-Advanced-Framing-CRC Screen

Process bearer CRC: [Ignore CRC] New: Ignore CRC

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Options:

Ignore CRC

Specifies that the terrestrial G.732 frame does not contain a checksum or

it should be ignored.

Check CRC

Specifies that the terrestrial G.732 frame does contain a checksum that should be checked for errors. If enough errors accumulate then a Tx Drop

MUX BER alarm will be raised (‘Input BER > 1E-3’).

Factory default:

Ignore CRC

Description: This option is applicable only with G.732 Drop/Insert bearers and

controls the processing of any terrestrial checksum.

Edit-Tx-Baseband-Advanced-Framing-CRC-Frame Re-acquisition Screen

Frame re-acquisition on CRC loss: [Normal] New: Normal

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Quantum and Evolution Series Installation and Operating Handbook

Options:

Normal

Specifies that no attempt is made to re-acquire terrestrial Drop/Insert frame synchronization if CRC synchronization cannot be achieved within 8ms.

Resync if CRC lost for 8ms

Specifies that re-acquisition of the terrestrial Drop/Insert frame synchronization should occur if CRC synchronization cannot be achieved within 8ms.

Factory default: Normal

Description: This option is applicable only with G.732 Drop/Insert bearers when the

‘Process bearer CRC’ option is set to ‘Check CRC’. It controls whether a

strict implementation of ITU G.704 is carried out, forcing re-acquisition of the terrestrial Drop/Insert frame synchronization if CRC synchronization cannot be achieved within 8ms.

Edit-Tx-Baseband-Advanced-Timeslots Menu

Timeslots:1:Number used 2:Timeslots 3:Maintain ID 4:Idle code

This menu contains the following options:

• Number used. This controls the number of timeslots dropped off the terrestrial bearer

and sent over the satellite.

• Timeslots. This option is used to select which timeslots are dropped.

• Maintain ID. This controls whether timeslot identity is maintained over satellite (i.e.

whether the timeslots represent different data streams or are all part of the same stream).

• Idle code. This controls whether dropped timeslots are replaced with Idle code.

Edit-Tx-Baseband-Advanced-Timeslots-Number Used Screen

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No. timeslots used:0 to 31 [01] Step 1 New: 01

Units: Minimum value: 0 Maximum value: 31 Step size: 1 Factory default: 0

Description: Controls the number of timeslots dropped off the terrestrial bearer and

sent over the satellite.

Edit-Tx-Baseband-Advanced-Timeslots-Timeslots Screen

Terr slots to drop to satellite [1] New:0,18-31,17,16-1

Units: Minimum value: 0 Maximum value: 31 Step size: 1 Factory default: 0

Description: Controls which timeslots are dropped and in which order. Terrestrial

timeslots are mapped into the satellite frame in the order listed on this screen, which allows timeslots to be reordered. For G.732 operation timeslot numbers 1-32 are used, and for T1-D4 and T1-ESF, timeslot numbers 1-24 are used. Timeslots can be entered as individual numbers separated by commas or as an inclusive range denoted by the first and last timeslot numbers in the range with a hyphen between them. For example, ‘0,18-31,17,16-1’ swops timeslots groups 18 to 31 with 1 to 16 and additionally reverses timeslots 1 to 16.

Note that on this screen the Down arrow key is used to enter a comma and the Up arrow key is used to enter a hyphen. The 0 key pressed together at the same time as the Right arrow key deletes the character at

the cursor.

If the number of timeslots that are entered differ from the number

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entered on the Edit-Tx-Baseband-Advanced-Timeslots-Number Used Screen then the new value will not be accepted and the modem will

remain on this screen.

Note that when a valid sequence of timeslot numbers is accepted, it may take several seconds for the display to update due to the level of internal processing involved.

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Edit-Tx-Baseband-Advanced-Timeslots-Maintain ID Screen

Maintain timeslot ID over satellite: [Off] 1:Off 2:On

Options:

Off

Timeslot identity will not be maintained.

The modem will activate the satellite CAS multiframe in order to provide timeslot identity maintenance for certain numbers of timeslots.

Factory default:

Off

Description: Set to on if timeslots contain different data streams; set to off if timeslots

are all part of the same stream.

Edit-Tx-Baseband-Advanced-Timeslots-Idle Code Screen

Dropped timeslots: [Leave on bearer] 1:Leave on bearer 2:Replace with Idle code

Options:

Leave on bearer

The Tx data remains on the bearer and will be accessible to downstream equipment unless Rx data is inserted over it.

Replace with Idle code

The Tx data is replaced as follows (MSB to LSB): G.732 timeslots are replaced with 01010101 G.732 CAS in TS16 is replaced with 0101 if CAS signalling is active T1-D4 and T1-ESF timeslots are replaced with 10000000

Factory default:

Leave on bearer

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Quantum and Evolution Series Installation and Operating Handbook

Description: Controls whether dropped timeslots are replaced with Idle code. If the Rx

data is to be inserted into the same timeslots as the Tx data has been dropped from then the Rx data will replace the Tx data and therefore this setting is irrelevant. In G.732, timeslot 0 is never replaced with Idle code.

Edit-Tx-Baseband-Advanced-Overhead Menu

Overhead:1:Closed+ESC 2:IBS/SMS 3:IDR

This menu contains the following options:

• Closed+ESC. This controls the overhead in Closed Network plus ESC mode, allowing

the high-rate asynchronous ESC channel to be set up. The different options are presented as a sequence of screens that configure all aspects of the overhead.

• IBS/SMS. This controls the overhead in IBS/SMS mode, allowing both the low and

high-rate ESC channels to be set up. The different options are presented as a sequence of screens that configure all aspects of the overhead.

• IDR. This controls the overhead in IDR mode, allowing the IDR 8kbps ESC channel

and audio channels to be set up and the routing of multiple backward alarms in IDR mode. It also allows Aux data to be allocated in place of one or both of the IDR audio channels if these are not used or it can be used to reduce the standard 96kbps overhead to 64 or 32kbps. The different options are presented as a sequence of screens that configure all aspects of the overhead.

Edit-Tx-Baseband-Advanced-Overhead-Closed Network Plus ESC Screens

The following sequence of screens will appear consecutively when the Closed+ESC overhead option is selected.

ESC interface baud rate: [9600 baud] New: 9600 baud

ESC Baud Rate Screen

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Quantum and Evolution Series Installation and Operating Handbook

ESC interface character length: [8 bits] 1:7 bits 2:8 bits

ESC Character Length Screen

ESC interface parity polarity: [None] New: None

ESC Parity Screen

ESC interface: [RS485] New: RS485

ESC Interface Screen

Enable backward alarm: [On] 1:Off 2:On

ESC Backward Alarm Screen

IBS/SMS Aux mode: [Off ]

New: Off

Aux Mode Screen

Aux interface: [RS485] 1:RS232 2:RS422 3:RS485 4:IP

Aux Interface Screen

These screens are explained in the following sections.

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ESC Baud Rate

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: Sets the baud rate of the ESC UART.

ESC Character Length

Options:

7 bits 8 bits

Factory default: 8 bits

Description: Sets the number of bits in an ESC UART character.

ESC Parity

Options:

None Even Odd

Factory default: None

Description: Controls the ESC UART parity setting.

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ESC Interface

See the description under Edit-Unit-Interface-ESC Interface Screen.

ESC Backward Alarm

Options:

Of On

Factory default: Of

Description: Controls the ESC Backward alarm setting.

IBS/SMS Aux Mode

Options:

Off Intelsat over-sampled Synchronous

Factory default: Off Description: Controls the operating mode of the IBS

allocation of overhead between the Aux and ESC interfaces.

ux channel, controlling the

AUX Interface See the description under Edit-Unit-Interface-Aux Interface Screen.

Edit-Tx-Baseband-Advanced-Overhead-IBS/SMS Screens

The following sequence of screens (depending on what SAF options are enabled) will

appear consecutively when the IBS/SMS overhead option is selected.

High-rate ESC mode: [Asynchronous] New: Asynchronous

High-rate ESC Mode Screen

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Quantum and Evolution Series Installation and Operating Handbook

High-rate ESC usage: [Maximum overhead] [P230 compatible] New: Maximum overhead

High-rate ESC Usage Screen

Max ESC rate: [9600]

Maximum ESC Baud Rate Screen

ESC interface parity polarity: [None] [None] New: None

ESC Parity Screen

ESC interface baud rate: [9600 baud]

ESC interface character length: [8 bits] New: 9600 baud

1:7 bits 2:8 bits

ESC Baud Rate Screen

ESC Character Length Screen

IBS/SMS Aux mode: [Off ]

New: Off

Aux Mode Screen

ESC Interface: [RS485] [RS485] New: RS485

ESC Interface Screen

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Quantum and Evolution Series Installation and Operating Handbook

Aux interface: [RS485] 1:RS232 2:RS422 3:RS485 4:IP

Aux Interface Screen

ESC level ch1:0 to 38dB [0] Step 2dB New: 0

ESC Audio Levels Screen

Enable backward alarm: [On] 1:Off 2:On

Backward Alarm Mode Screen

These screens are explained in the following sections.

High-rate ESC Mode

Options:

Off

Asynchronous

Requires the ESC SAF feature (standard on base modem).

Factory default: Off

Description: Controls whether the IBS high-rate asynchronous ESC channel is

enabled.

High-rate ESC Usage

Options:

P230 compatible Maximum overhead Factory default: Maximum overhead

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Quantum and Evolution Series Installation and Operating Handbook

Description: Allows backward compatibility with Paradise P230 unit. Requires Custom

SAF feature.

Maximum ESC Baud Rate

IBS/SMS uses a fixed frame format and therefore the amount of overhead is limited. This screen displays the maximum ESC baud rate that may be selected. The actual selection of the baud rate is done on the next screen.

ESC Baud Rate, ESC Character Length, ESC Parity, ESC Interface

See the descriptions under Edit-Tx-Baseband-Advanced-Overhead-Closed Network Plus ESC Screens.

IBS/SMS Aux Mode

Options:

Off Intelsat over-sampled S

nchronous

Factory default: Off Description: Controls the operating mode of the IBS Aux channel, controlling the

allocation of overhead between the Aux and ESC interfaces.

ESC Interface See the description under Edit-Unit-Interface-ESC Interface Screen.

AUX Interface See the description under Edit-Unit-Interface-Aux Interface Screen.

ESC Audio Levels

Units: dB Minimum value: 0 Maximum value: 38 Step size: 2 Factory default: 0

Description: Sets the input/output levels for the IDR audio ESC channels. The two

channels can be configured independently.

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ESC Backward Alarm

Options:

Of On

Factor

default: Off

Description: Controls the ESC Backward alarm setting.

Edit-Tx-Baseband-Advanced-Overhead-IDR Screens

The following sequence of screens will appear consecutively when the IDR overhead

option is selected.

IDR 8k ESC: [Off] 1:Off 2:Asynchronous 3:Synchronous

IDR 8k ESC Screen

ESC interface baud rate: [9600 baud] New: 9600 baud

ESC Baud Rate Screen

ESC interface character length: [8 bits] 1:7 bits 2:8 bits

ESC Character Length Screen

ESC interface parity polarity: [None] [None] New: None

ESC Parity Screen

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Quantum and Evolution Series Installation and Operating Handbook

ESC interface: [RS485] [RS485 New:RS485

ESC Interface Screen

IDR ESC audio encoding: [2x32K in V1,V2] [2x32K in V1,V2] New: [2x32K in V1,V2]

IDR ESC Audio Encoding Screen

IDR Aux data: [Off] 1:Off 1:32K 2:64K

IDR Aux Data Screen

Aux interface: [RS485] 1:RS232 2:RS422 3:RS485 4:IP

Aux Interface Screen

Backward alarm mode: [1-4 external ] New: 1-4 external

Backward Alarm Mode Screen

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Quantum and Evolution Series Installation and Operating Handbook

ESC level ch1:0 to 38dB [0] Step 2dB New: 0

ESC Audio Levels Screen

These screens are explained in the following sections.

IDR 8k ESC

Options:

Off

Asynchronous

Requires ESC SAF feature (standard on base modem). Provides up to a 9600-baud asynchronous channel.

Synchronous

Factory default:

Off

Description: Controls the operating mode of the low-rate IDR ESC channel.

ESC Baud Rate, ESC Character Length, ESC Parity, ESC Interface

See the descriptions under Edit-Tx-Baseband-Advanced-Overhead-Closed Network Plus ESC Screens.

ESC Interface See the description under Edit-Unit-Interface-ESC Interface Screen.

IDR ESC Audio Encoding

Options:

Off

When off, V1 and V2 are omitted and consequently only 32kbps overhead is transmitted (or the 64kbps of V1 and V2 overhead can be reallocated to

ux data via the IDR Aux mode setting). The 32kbps overhead includes

FAS, backward alarms and an 8kbps synchronous ESC channel.

2x16k in V1

Two 16kbps ADPCM channels are provided in V1 (with V2 either being omitted or being replaced with Aux data as determined by the IDR Aux mode setting)

1x32k in V1

32kbps is provided in V1 (with V2 either being omitted or being replaced

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with Aux data as determined by the IDR Aux mode setting)

2x32k in V1,V2

The normal full 96kbps of IDR overhead is used, including two audio ESC channels encoded as 32kbps ADPCM, as well as the standard 32kbps for FAS, backward alarms and an 8kbps synchronous ESC channel .

Factory default:

Off

Description: Controls audio data format for the ESC overhead in IDR mode. The

overhead can be set to 32, 64 or 96kbps. 64kbps of this can be not transmitted, allocated to voice or allocated to Aux data via the Aux controls.

IDR Aux Data

Options:

Off

No Aux data is placed in the overhead.

32K

32kbps of Aux data replaces the data in IDR audio ESC channel V2

(requires the IDR audio mode setting to be 2x16k in V1 or 1x32k in V1).

64K

64kbps of Aux data replaces the data in IDR audio ESC channels V1 and

V2 (requires the IDR audio mode to be set to Off).

Factory default:

Off

Description: Controls the Aux channel in IDR mode. Allocates Aux data in place of

one or both of the IDR voice channels if these are not used or can be used to reduce the 96k overhead to 64k or 32k. Requires Aux SAF feature.

Aux Interface See the description under Edit-Unit-Interface-Aux Interface Screen.

ESC Audio Levels

Units: dB Minimum value: 0 Maximum value: 38

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Quantum and Evolution Series Installation and Operating Handbook

Step size: 2 Factory default: 0

Description: Sets the input/output levels for the IDR audio ESC channels. The two

channels can be configured independently.

Backward Alarm Mode

Options:

Backward alarm 1-4 external Backward alarm 1 internal, backward alarm 2-4 external Backward alarm 1 internal, backward alarm 2-4 forced okay Backward alarm 1-4 internal

Factory default: Backward alarm 1-4 external

Description: Controls routing of multiple backward alarms in IDR mode. When

internally linked from Rx-Fail to BA1 or BA1-4, these alarms respond similarly to the normal single backward alarm. Requires Custom SAF feature.

7.3.3.1.3 Edit-Tx-Clocks Screen

Tx-path clock source: [Tx Clock In] New: Receive reference

Options:

Tx Clock In

The external clock supplied on the interface Clock In line will be used.

Should this clock fail then the modem will switch to an internal backup clock.

Internal

The modem outputs a clock on the Int Tx Clock Out line for use by external

equipment. The clock is normally generated from the internal frequency reference. Alternatively, a station clock of 10MHz can be applied to the unit and used to synchronise all internal clocks and IF synthesisers which normally use the internal reference.

Receive reference

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The Tx clock is generated from the Rx output clock. This is only of any

practical use when the Rx clock is set to Satellite or Station clock.

Station

The Tx clock is generated from the station clock.

Hub

Factory default:

Internal

Description: Sets the clock source for the Tx path.

If the RS232 terrestrial interface is active, then the following option will be displayed at

this point:

Asynchronous data: [On] 1:[Off] 2:[On]

When asynchronous operation is switched on, then the external RS232 clock is ignored and the data is clocked by an oversampled internal clock. This can help overcome ‘data marginal’ type of problems in some circumstances.

If the Tx clock is set to Internal, a G.703 interface card is fitted but NOT currently selected and the G.703 clock extension SAF feature is enabled then the following menu will be is displayed at this point:

Use G.703 as clock reference: [Off] New: E1

This allows the G703 clock to be forwarded over satellite as a clock reference (see Section 8.8 for further details).

Options: OFF E1

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Quantum and Evolution Series Installation and Operating Handbook

Factory default: OFF Description: Allows a high stability reference signal to be transferred across satellite.

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7.3.3.1.4 Edit-Tx-Modulation Screen

Modulation: [BPSK] 1:BPSK 2:QPSK 3:OQPSK 4:8PSK 5:16QAM 6:8QAM 7:16APSK 8:32APSK 9:64QAM

The table shown under Edit-Tx-FEC-Inner defines normal operation with respect to FEC

mode, FEC rate and modulation scheme.

Options:

BPSK

QPSK

OQPSK

8PSK

Requires 8PSK SAF feature.

pplicable to TCM, TPC and FastLink

LDPC.

16QAM

Requires 16QAM SAF feature. Applicable to TPC and FastLink LDPC.

8QAM

Requires 8QAM SAF feature. Applicable to FastLink LDPC.

16APSK

Requires 16APSK SAF feature. Applicable to FastLink LDPC (DVB-S2

16APSK does not require this SAF).

32APSK

Requires 32APSK SAF feature. Applicable to FastLink LDPC.

64QAM

Requires 64QAM SAF feature. Applicable to FastLink LDPC.

Factory default:

QPSK

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Quantum and Evolution Series Installation and Operating Handbook

Description: Selects the modulation used for the carrier. (In DVB-S2 IP

multistreaming mode then there will be one of these screens for each stream, as each stream can have a separate modulation associated with it.) Trade-off between bandwidth efficiency, resilience to noise, and power required. Except for the lowest of data rates, where BPSK reduces the effects of system phase noise, the higher modulation schemes are preferred for bandwidth efficiency.

Edit-Tx-Modulation-Advanced Menu

Advanced: 1:Symbol mapping 2:Bit order

This menu can be selected (when user level is set to Advanced) following the setting of the

modulation type. It contains the following options:

• Symbol mapping. This determines how data is mapped to signal constellations in

QPSK mode.

• Bit order. This controls whether I and Q bits are swapped in BPSK mode.

Edit-Tx-Modulation-Advanced-I/Q Symbol Mapping Screen

I/Q symbol mapping: [IESS compatible] 1:IESS compatible 2:OM-73 compatible

Options:

IESS compatible OM-73 compatible

Factory default: IESS compatible

Description: Determines how data is mapped to signal constellations in QPSK mode.

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Edit-Tx-Modulation-Advanced-Bit Order Screen

Tx swop BPSK I/Q bit order: [Off] 1:Off 2:On

Factory default: Of

Description: Controls whether I and Q bits are swapped in BPSK mode.

7.3.3.1.5 Edit-Tx-FEC Menu

FEC: 1:Inner 2:Outer

This menu contains the following options:

• Inner. This submenu controls the Inner FEC settings for the modem.

• Outer. This submenu controls the Outer Reed-Solomon FEC settings for the modem.

Edit-Tx-FEC-Inner Menu

Inner: 1:FEC 2:Rate

This menu contains the following options:

• FEC. This selects the Inner FEC type.

• Rate. This selects the FEC rate.

The next table defines normal operation with respect to FEC mode, FEC rate and modulation scheme.

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FEC Mode FEC Rate Modulation Scheme

Viterbi (default) 1/2, 3/4, 7/8 (default) BPSK, QPSK (default),

OQPSK Sequential 1/2, 3/4, 7/8 BPSK, QPSK, OQPSK TCM 2/3 8PSK TPC 5/16

BPSK, QPSK, OQPSK

21/44 1/2 (Paradise) 2/3 (Paradise) 3/4 de facto

0.789 (Paradise) 7/8 de facto

7/8 (Paradise) (default)

0.93 (Paradise)

TPC 3/4 de facto

8PSK, 16QAM

7/8 de facto (default)

0.93 (Paradise) Conventional LDPC 1/2 QPSK Conventional LDPC 2/3 QPSK, 8PSK Conventional LDPC 3/4 QPSK, 8PSK, 16QAM DVB-S2 (Quantum only) ¼, 1/3, 2/5, ½ QPSK DVB-S2 (Quantum only) 3/5 QPSK, 8PSK DVB-S2 (Quantum only) 2/3, ¾, 4/5, 5/6, 8/9, 9/10 QPSK, 8PSK, 16APSK FastLink LDPC 0.498 BPSK FastLink LDPC 0.531 QPSK FastLink LDPC 0.636, 0.707, 0.795 QPSK, 8PSK, 8QAM FastLink LDPC 0.723, 0.775, 0.825, 0.847 16QAM, 16APSK FastLink LDPC 0.775, 0.825, 0.882, 0.935 32APSK FastLink LDPC 0.825, 0.882, 0.935, 0.956 64QAM

Table of Normal Operation with respect to FEC Mode, FEC Rate and Modulation

Scheme

Edit-Tx-FEC-Inner-FEC Screen

FEC type: [TPC] New: SmartLink

Options:

Off

No FEC is used. Generally this mode of operation is not recommended for normal operational use. It is only valid for BPSK and QPSK and even then may be automatically overridden in some circumstances causing a default

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Quantum and Evolution Series Installation and Operating Handbook

FEC to be switched back on.

Viterbi

Requires the Viterbi SAF feature (standard on base modem).

TCM

Requires the TCM SAF feature, which is provided free with the 8PSK SAF feature.

TPC

Requires the TPC SAF feature.

Sequential

Requires the Sequential SAF feature.

LDPC

Requires one or more of the LDPC data rate SAFs. This enables

Conventional LDPC. Note that this feature has been superseded by

FastLink low-latency LDPC, which gives comparable performance.

SmartLink (Quantum only)

This is provided as part of DVB-S2 and is not a SAF feature in its own right.

This selects SmartLink, which allows SCPC features to be used with DVB-

S2 ‘space segment’. DVB-S2 provides very efficient forward error correction (FEC), modulation and satellite framing and very robust

demodulation (working lower into the noise). SmartLink is described in

more detail in Section 8.13.

However, the DVB-S2 standard does not directly support various features traditionally used in SCPC links such as Drop and Insert, ESC channel,

remote M&C control, AUPC, IDR audio channels, etc. SmartLink allows

ALL modem features that rely on SCPC framing (including IBS/SMS, IDR, Closed Network plus ESC, etc.) to be used in conjunction with DVB-S2, allowing legacy SCPC applications to immediately benefit from bandwidth savings and the increased robustentess of DVB-S2 while providing exactly the same services as before.

If DVB-S2 is required but no SCPC features are required then as well as

selecting SmartLink, the Tx or Rx service should be set to Closed network

as this does not add any extra framing to that provided by DVB-S2

(bypassing the framer in the diagram in Section 8.13). Note that SmartLink allows any terrestrial interface to be used with DVB-

S2. Using SmartLink in Closed network mode does not add any overhead

beyond that of DVB-S2. This therefore allows pure DVB-S2 G.703

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operation, serial interface operation, etc., bringing the full efficiency benefits of DVB-S2 to all terrestrial data types, not just packet based interfaces.

Once SmartLink has been selected, various other DVB-S2 configuration

menu options become available, including choice of modulation and FEC rate, as well as DVB-S2 FEC frame size choice and DVB-S2 pilots.

FastLink

Requires one or more of the FastLink data rate SAFs. This enables Paradise’s FastLink low-latency LDPC. FastLink gives BER performance

approaching that of conventional LDPC but with latency nearer to that of

TPC. In addition, FastLink supports modes that optimize either BER

performance or latency even further, giving the flexibility to match FEC performance more closely to the constraints of the satellite application. In

many, if not all applications, FastLink should be able to replace TPC or conventional LDPC. Note that FastLink does not suffer from the error floor

‘flaring’ problem of earlier generation LDPC FECs and consequently does not require the use of any outer codec to enhance performance.

DIrectIQ

This is a specialized mode that bypasses the normal Tx processing chain in the modem. It is a mode that Paradise has introduced for specific users and it has no general, wider application and therefore should not be used.

Factory default:

Viterbi

Description: Controls the inner FEC mode.

Edit-Tx-FEC-Inner-Rate Screen

FEC code rate: [.75(3/4) de facto ] New: .75(3/4) de facto

Options:

1/4 DVB-S2/SmartLink only.

0.312(5/16)

TPC only.

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Quantum and Evolution Series Installation and Operating Handbook

1/3 DVB-S2/SmartLink only.

2/5 DVB-S2/SmartLink only.

0.477(21/44)

TPC only.

0.493(1/2) Paradise

TPC only.

1/2 Viterbi/Sequential/DVB-S2/SmartLink only.

3/5 DVB-S2/SmartLink only.

2/3

TCM only.

0.666(2/3) Paradise

TPC only.

3/4 Viterbi/Sequential/DVB-S2/SmartLink only.

.75(3/4) de facto

TPC only.

4/5 DVB-S2/SmartLink only.

0.789 Paradise

TPC only.

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5/6 DVB-S2/SmartLink only.

7/8

Viterbi/Sequential.

0.875(7/8) de facto

TPC only.

0.875(7/8) Paradise

TPC only.

8/9 DVB-S2/SmartLink only.

9/10 DVB-S2/SmartLink only.

0.929 Paradise

TPC only.

0.498 FastLink only.

0.531 FastLink only.

0.636 FastLink only.

0.707 FastLink only.

0.723 FastLink only.

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Quantum and Evolution Series Installation and Operating Handbook

0.775 FastLink only.

0.795 FastLink only.

0.825 FastLink only.

0.847 FastLink only.

0.882 FastLink only.

0.935 FastLink only.

0.956 FastLink only.

Factory default: ½ Viterbi

Description: Sets the FEC code rate i.e. the number of bits input to the Forward Error

Correction encoder relative to the number output, thereby determining the level of information redundancy and protection of the data stream against errors. (In DVB-S2 IP multistreaming mode then there will be one FEC rate screen shown for each stream, as each can be set

independently.) Not all FEC rates are available for all modulations

and FEC schemes – please check the ‘Table of Normal Operation with respect to FEC Mode, FEC Rate and Modulation Scheme’ shown in the Edit-Tx-FEC-Inner Menu section.

Note: Paradise TPC rate 7/8 was developed to give better performance than Viterbi rate 7/8ths (by about 1dB) with a similar latency. However, if you require interoperability with other manufacturers’ equipment or a better coding gain, then you should select de facto TPC rate 7/8.

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Edit-Tx-FEC-Sequential Compatibility Screen

The following screen will be shown at this point if Sequential FEC has been selected:

Comstream Seq Compatibility: [Off] 1: Off 2: On

Options:

Of On

Factory default: Of

Description: This switches the Sequential encoder/decoder to be Comstream

compatible at R3/4. Already compatible at R1/2 (the CM701 does not have R7/8 available).

Edit-Tx-FEC-Frame Type Screen

The following screen may be shown at this point after the FEC has been selected (in DVB-S2 IP multistreaming mode then there will be one of these screens for each stream):

FEC frame size: [Normal] New:[Short]

Options:

Short

Selects a DVB-S2 frame size of 16200 bits.

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Normal

Factory default: Short

Description: Sets the DVB-S2 FEC frame size.

Edit-Tx-FEC-Pilots Screen

Selects a DVB-S2 frame size of 64800 bits.

The following screen may be shown at this point after the FEC has been selected

(in DVB-S2 IP multistreaming mode then there will be one of these screens for

each stream):

Options:

Factory default: Of

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

Pilot tones: [Off] New:[On]

unmodulated tone at regular intervals in the transmitted data that can help receivers to lock and stay in lock particularly when using higher order modulation schemes in noisy environments. They add an overhead of around 2.5% to the transmitted data.

Edit-Tx-FEC-Outer Menu

Outer: 1:RS mode 2:Advanced

This menu contains the following options:

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• RS mode. This controls whether the Reed-Solomon outer-FEC encoder is active.

• Advanced.This submenu allows custom values of n, k and interleaver depth to be set.

Reed-Solomon FEC is a powerful scheme wrapped around the inner FEC that can be used to correct the remaining errors from the Viterbi and TCM inner FEC. The code rate is

specified by three values, namely, n, k, and t. These have a fixed relationship of n - k = 2t, making t half the difference between n and k. A typical code rate is specified as (n, k, t) =

(126, 112, 7).

Reed-Solomon error correction works on codewords (blocks) of bytes, where n is the length of the block of which there are k bytes of original data and 2t bytes of error correction information. The Reed-Solomon codec can correct any bytes in error up to a value of t bytes. In the above example with t=7, up to seven bytes within 126 may be corrected no matter

how many individual bits per byte are in error. However, when the error rate exceeds the correctable level, unlike other FEC schemes that degrade gracefully, Reed-Solomon fails catastrophically. Once the error correction threshold is passed then the codec considers it uncorrectable and passes the entire block uncorrected, i.e. the error rate goes from 0 to no error correction in one step. There is a small transitional area where due to the distribution of the errors, the errors in some blocks may be just below the threshold (and therefore fully correctable) and some blocks may be just above (and therefore uncorrectable). In practice, this effect gives a Reed-Solomon satellite circuit a transition from error free to unserviceable in approximately 1dB of change in Eb/No.

In addition to the (n, k, t) specification of the code rate, there is a parameter called interleaving depth, which controls the number of Reed-Solomon codewords that are

interleaved. Interleaving is used to mix up the blocks such that a burst of channel errors is distributed over a number of codewords, rather than affecting a lot of bytes from a single block, thus improving the resilience to error bursts. Interleaving is usually of depth 4 or 8.

Reed-Solomon outer FEC must never be used in the absence of an inner FEC scheme.

Section 8.8 describes how to choose optimum custom values for n and k.

Edit-Tx-FEC-Outer-RS Mode Screen

RS FEC: [Normal] 1:Off 2:Normal 3:Other

Options:

Off

Normal

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Requires Reed-Solomon SAF feature (standard in base modem). In this mode the Reed-Solomon FEC is active and the modem automatically chooses appropriate values for n, k and interleaver depth.

Other

Requires both the Reed-Solomon and Custom SAF features. In this mode, the user can choose the values of n, k and interleaver depth.

Factory default:

Off

Description: Controls whether the Reed-Solomon outer-FEC encoder is active.

Edit-Tx-FEC-Outer-Advanced Menu

Advanced: 1:RS N 2:RS K 3:Interleave

This menu can be selected (when user level is set to Advanced) following the setting of the

modulation type. It contains the following options:

• RSN. This sets the Reed-Solomon codeword length, i.e. k data symbols + (n - k) parity

symbols, where (n - k)/2 symbol errors per codeword can be corrected.

• RSK. This sets the number of data symbols per Reed-Solomon codeword (range (n -

2) to (n - 20) in steps of 2).

• Interleave. This is used to set the Reed-Solomon interleaver depth, which controls

resilience to burst errors (larger depth gives best BER) through data dispersal at the

expense of introducing processing delay.

The table below defines normal Reed-Solomon operation.

Normal RS

Service FEC Terrestrial Data Rate Type (n,k,t) Depth

Off x x x x x

Closed, IBS/SMS, IDR, Closed+ESC, OM73 TCM

IDR Other

Closed, IBS/SMS, Closed+ESC, OM73 Other all (126,112,7)

>1544k

<=1544k

2048k 1544k (225,205,10) 6312k 8448k

Other (126,112,7)

Intelsat

(219,201,9)

(194,178,8)

Table of Reed-Solomon N, K and Interleaver Depth Values for Normal Operation

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Edit-Tx-FEC-Outer-Advanced RSN (Codeword Length) Screen

RS n value:60 to 255symbols [126] Step 1 symbols New: 126

Units: s

mbols

Minimum value: 60 Maximum value: 255 Step size: 1 Factory default: 126

Description: Reed-Solomon codeword length, i.e. k data symbols + (n - k) parity

symbols, where (n - k)/2 symbol errors per codeword can be corrected.

Edit-Tx-FEC-Outer-Advanced RSK (Data Length) Screen

RS k value:40 to 253symbols [112] Step 2 symbols New: 112

Units: symbols Minimum value: 40 Maximum value: 253 Step size: 2 Factory default: 112

Description: Number of data symbols per Reed-Solomon codeword (range (n - 2) to

(n - 20) in steps of 2).

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Edit-Tx-FEC-Outer-Advanced interleaver Depth Screen

RS interleaver depth: [4 codewords] 1:4 codewords 2:8 codewords 3:12 codewords

Options:

4 code-words 8 code-words 12 code-words

Factory default: 4 code-words

Description: Controls resilience to burst errors (larger depth gives best BER) through

data dispersal at the expense of introducing processing delay.

7.3.3.1.6 Edit-Tx-Scrambler Menu

Scrambler: 1:Enable 2:Type

This menu contains the following options:

• Enable. This is the master control for all scramblers. It can be used to switch

scrambling off or on. When on, the choice of scrambler can be made automatically by the modem or selected manually.

• Type. This option selects the type of scrambler to apply when manual control of the

scrambler type is active (i.e. when automatic selection is switched off).

The following table defines normal operation with respect to scrambler selection.

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Service Scrambler Availability

IBS/SMS IBS/SMS (default), Intelsat-RS

IDR, Closed Intelsat-RS (default if RS mode is

Closed Network Plus ESC

OM-73 OM-73

Table of Valid Scrambler Options in Normal Operation

Edit-Tx-Scrambler-Enable Screen

(available only if RS mode is On), V.35, OM-73, Turbo (available only if FEC mode is TPC)

On and FEC mode is not TPC; available only if RS mode is On), V.35 (default if FEC mode is not TPC and RS mode is Off), OM-73, Turbo (default if FEC mode is TPC; available only if FEC mode is TPC) IBS/SMS (default if terrestrial data rate is >= 32000 and RS mode is Off), Intelsat-RS (default if RS mode is On), V.35, OM-73, Turbo (available only if FEC mode is TPC)

Scrambler mode: [Other] 1:Off 2:Normal 3:Other

Options:

Off Normal Other

Factory default: Normal

Description: Master control for all scramblers. In Normal mode, scrambler settings are

set automatically.

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Edit-Tx-Scrambler-Type Screen

Scrambler type: [V.35 ] New: V.35

Options:

IBS/SMS

Only available in Closed Network plus ESC (above 32kbps) and IBS/SMS.

V.35 This self synchronizing scrambler will multiply the errors, degrading

performance.

Turbo

Only available in when the TPC FEC is selected.

OM-73

Intelsat Reed-Solomon

Only available when the Reed-Solomon FEC is selected.

Factory default:

V.35

Description: Controls the type of scrambler to apply. Only available when scrambler

selection is set to Other.

Edit-Tx-Scrambler-Type-V.35 Screen

V.35 scrambler type: [Intelsat (normal)] New: Intelsat (normal)

Options:

Intelsat (normal)

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)

Fairchild Linkabit CCITT

Factor

default: Intelsat (normal

Description: Controls the particular type of scrambler to apply when V.35 scrambling

is enabled. Only available when scrambler selection is set to Other.

7.3.3.1.7 Edit-Tx-Carrier Menu

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

This menu has the following options:

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

• Power. This option controls the IF output power level.

• Frequency. This sets the IF 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 slope (gradient) of the carrier at its edges and therefore

controls the occupied bandwidth.

• Advanced. This submenu provides AUPC (Automatic Up-link Power Control), BUC

Type selection and BUC control menus. AUPC attempts to maintain the remote Eb/No at a specified target level by varying the local modem transmit power level. Note that

when AUPC is active then the ESC overhead channel is not available for user data.

Edit-Tx-Carrier-Enable Screen

Carrier mode: [On] [Off] New: Off

Options:

Off

The carrier is off.

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The carrier is on and will remain on even after the equipment is switched off and on again.

On-mute if outage (mute if power break)

Mute on power break requires confirmation of transmission (i.e. selecting Edit/Unit/Advanced/Operation and select `Ack Pwr Bre`) following a power outage.

Rx enabled

When enabled, then the carrier will be switched off whenever an Rx traffic fault is present in the modem.

RTS enabled

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

Factory default:

Off

Description: Tx carrier control.

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

IF output power:-25 to 0dBm [-10.0] Step 0.1dBm New: -10.0

Units: dBm Minimum value: -25.0 Maximum value: 0 Step size: 0.1 Factory default: -20.0

Description: Tx IF output power level.

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Edit-Tx-Carrier-Power Screen (L-band Modem)

RF output power:-30 to -5dBm [-10.0] Step 0.1dBm New: -10.0

Units: dBm Minimum value: -30.0 Maximum value: -5 Step size: 0.1 Factory default: -30.0

Description: Tx L-band output power level.

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

IF carrier freq: 50 to 90, 100 to 180MHz [070.0000] Step 100Hz New: 070.0000

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

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

90 and 100MHz cannot be selected.

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Edit-Tx-Carrier-Frequency Screen (L-band Modem)

IF carrier freq: 950 to 1950MHz [950.0000] Step 100Hz New: 950.0000

Units: MHz Minimum value: 950.0000 Maximum value Standard: 1950.0000 Maximum value if WRF enabled: 2050.0000 Step size: 0.0001 Factor

default: 950.0000

Description: Tx L-band frequency used to transmit to satellite.

Edit-Tx-Carrier-Inversion Screen

Rx spectral inversion: [On] 1:Off 2:On

Factory default: Of

Description: Controls whether the I and Q channel outputs are swapped.

Edit-Tx-Carrier-Roll-off Screen

Filter roll-off: [35%] New: 20%

Options:

35%

This selects a filter roll-off factor of 35%.

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25%

This selects a filter roll-off factor of 25%.

20%

This selects a filter roll-off factor of 20%.

Factory default: 35%

Description: Controls the slope of the carrier at its edges and therefore has an effect

on both occupied bandwidth and the potential for interference from adjacent carriers. A factor of 20% is the most bandwidth efficient. Note that older Paradise modems support only 35% - please consult Customer Technical Support if in doubt.

Edit-Tx-Carrier-Advanced-AUPC Menu

AUPC:1:Mode 2:Target Eb/No 3:Power offset

This menu contains the following options:

• Mode. This controls the ability to attempt to maintain the remote Eb/No at a specified

target level by varying the local modem transmit power level.

• Target Eb/No. This is used to set a target Eb/No for the distant modem that this

modem tries to maintain by adjusting the transmit power level.

• Power offset. This sets the maximum increase in transmit power level that can be

made to maintain the distant Eb/No.

Edit-Tx-Carrier-Advanced-AUPC-Mode Screen

AUPC mode: [Off] 1:Off 2:Monitor 3:Maintain

Options:

Off

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Monitor remote Eb/No

In this mode, the modem will monitor the Eb/No of the remote modem via the ESC, without making any changes to the Tx power level.

Maintain remote Eb/No

In this mode, the modem will attempt to maintain the remote Eb/No at the specified target level. As with Monitor remote Eb/No above, it uses the ESC to maintain the distant end Eb/No.

Factory default:

Off

Description: This controls the AUPC mode of operation. Note that both modems must

be placed in either Monitor or Maintain mode for AUPC to work. Typically, the local controlling modem is placed in Maintain mode and the remote modem is placed in Monitor mode (unless it is also controlling

another modem via AUPC). If AUPC is switched off in the remote modem then the modem in question will not respond to requests to provide Eb/No information. See Section 8.3 for a full description of AUPC.

Edit-Tx-Carrier-Advanced-AUPC-Method Screen

AUPC method: [Normal] New: Normal

Options:

Normal

This should be selected when two Quantum/Evolution modems are at either ends of the satellite link.

Self

In this mode, the modem will adjust power output in an attempt to maintain the Eb/No at its target level using the Eb/No from its own received carrier rather than the Eb/No value being passed back from any remote modem.

P300

This should be selected when the distant end modem is a P300 series modem. This uses a P300 style of ESC communications involving RS485, as opposed to native Evolution/Quantum ESC communications, which use IP over the ESC channel. The P300 RS485 messages are more concise

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and may reduce ESC bandwidth requirements.

Factory default:

Normal

Description: This controls the AUPC method of operation.

Edit-Tx-Carrier-Advanced-AUPC-Carrier-Loss-Action Screen

Carrier loss action: [Freeze at current value] New: Freeze at current value

Options:

Set to Nominal

The AUPC delta power is set to zero, so the carrier returns to its nominal power.

Freeze at current value

The carrier power is frozen at its current value.

Set to max

The AUPC delta power increases to the maximum power limit as set on the AUPC Max positive delta power screen.

Factory default:

Set to Nominal

Description: This controls the AUPC delta power action in the event of losing the

incoming carrier. In most cases this should be set to Nominal.

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Edit-Tx-Carrier-Advanced-AUPC-Eb/No Screen

Target remote EbNo:0.1 to 14.9dB [3.1] Step 0.1dB New: 3.1

Units: dB Minimum value: 0.1 Maximum value: 14.9 Step size: 0.1 Factory default: 10.0

Description: This is the distant Eb/No that AUPC tries to maintain by adjusting the Tx

power level.

Edit-Tx-Carrier-Advanced-AUPC-Power Offset Screen

Max power offset:0 to 25dBm [1.0] Step 0.1dBm New: 1.0

Units: dBm Minimum value: 0 Maximum value: 25 Step size: 0.1 Factory default: 1

Description: This is the maximum increase in Tx power level that AUPC is allowed to

make to maintain distant Eb/No.

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Edit-Tx-Carrier-Advanced-AUPC-Power-Negative Offset Screen

Max neg. power off:0 to 25dBm [1.0] Step 0.1dBm New: 1.0

Units: dBm Minimum value: 0 Maximum value: 25 Step size: 0.1 Factory default: 1

Description: This is the maximum decrease in Tx power level that AUPC is allowed to

make to maintain distant Eb/No.

Edit-Tx-Carrier-Advanced-BUC Control Menu

The following BUC screens are available only on L-band modems.

BUC: 1:Power offset 2:BUC type 3:PSU 4:Reference 5:Output 6:Attenuation 7:1-for-1

This menu contains the following options:

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

so the modem can display the transmit carrier level in terms of either the transmit power 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 power by adjusting the modem output power and BUC attenuation level.

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

allows the user to turn on or off the DC power 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 allows the user to vary the BUC attenuator level.

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• 1-for-1. This controls whether BUC services (i.e. DC supply and 10MHz reference)

stay with the on-line modem or switch to the standby modem when a 1-for-1 switchover occurs in a 1-for-1 redundant pair of modems. Note that FSK

communications will always be switched over.

Edit-Tx-Carrier-Advanced-BUC Power Offset Screen

Tx power offset: -99.9 to 99.9dB [-00.0] Step 0.1dB New: -00.0

Units: dBm/dBw Minimum value: -99 Maximum 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 power instead of the IF carrier level. Use the up/down arrows to change the sign. Once set, the user is navigated to the Tx power units selection screen.

Edit-Tx-Carrier-Advanced-BUC Power Units Screen

This allows the user to set the modem to display and edit the Tx carrier level in terms of either the Tx Power or EIRP, measured in dBm or dBW.

Tx power units: [dBm] 1: dBm 2: dBw

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Specifications and Main Features

Frequently Asked Questions

User Manual