Teledyne Q-Lite Series User manual

3.1.43, January 2022
2017
EN 55032 - Class A
EN 55035
EN 62368
Teledyne Paradise Datacom
106 Waterhouse Lane, Chelmsford, Essex CM1 2QU, England.
Tel: [phone]
https://www.teledynedefenseelectronics.com/paradisedatacom
Copyright © 2013-2021 Teledyne Paradise Datacom Ltd. All rights reserved.
QFlex-400 and Q-Lite Series Satellite
Modems
Installation and Operating Handbook

QFlex-400 and Q-Lite Satellite Modem Installation and Operating Handbook
ii
Table of Contents
Chapter 1 Welcome............................................................................................1-1
Chapter 2 About This Handbook.......................................................................2-1
2.1 Conventions .......................................................................................................2-1
2.2 Trademarks........................................................................................................2-1
2.3 Disclaimer...........................................................................................................2-1
Chapter 3 Safety and Compliance Information ................................................3-1
3.1 Safety Compliance .............................................................................................3-1
3.2 Environmental Compliance.................................................................................3-1
3.3 Electromagnetic Compatibility (EMC) Compliance..............................................3-2
Chapter 4 Installation.........................................................................................4-1
4.1 Unpacking ..........................................................................................................4-1
4.2 Line Supply.........................................................................................................4-1
4.3 Rack Mounting....................................................................................................4-1
4.4 Getting Started ...................................................................................................4-2
Chapter 5 Introduction.......................................................................................5-3
5.1 Overview ............................................................................................................5-3
5.2 Standard-Fit Hardware .......................................................................................5-4
5.2.1 IF and L-band Operation.................................................................................5-4
5.2.2 Ethernet Operation .........................................................................................5-4
5.2.3 Utilities Card...................................................................................................5-4
5.3 Hardware Options...............................................................................................5-4
5.3.1 Terrestrial Interface Option Cards...................................................................5-5
5.3.1.1 G.703 Option Card..................................................................................5-5
5.3.1.2 EIA-530 Option Card...............................................................................5-5
5.3.1.3 IDR Option Card .....................................................................................5-5
5.3.1.4 LVDS Option Card ..................................................................................5-5
5.3.1.5 HSSI Option Card ...................................................................................5-5
5.3.1.6 Quad E1 Option Card..............................................................................5-6
5.3.2 Other Option Cards.........................................................................................5-6
5.3.3 BUC Power Supply Options............................................................................5-6
5.4 Software Options................................................................................................5-7
5.5 Front Panel.......................................................................................................5-10
5.5.1 Status Indicators...........................................................................................5-10
5.5.2 LCD Display..................................................................................................5-11
5.5.2.1 Keypad..................................................................................................5-11
5.6 QFlex-400 Rear Panel......................................................................................5-12
Chapter 6 User Interfaces.................................................................................. 6-1
6.1 User Control.......................................................................................................6-1
6.1.1 Local Mode.....................................................................................................6-1
6.1.2 Local+ Remote Mode......................................................................................6-1
6.2 Web User Interface.............................................................................................6-1

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6.2.1 Login Screen ..................................................................................................6-2
6.2.2 Status Screen.................................................................................................6-3
6.2.2.1 Status Setup ...........................................................................................6-4
6.2.2.2 Status Demodulator ................................................................................6-5
6.2.2.3 Status Paired Carrier+.............................................................................6-6
6.2.2.4 Status ACM.............................................................................................6-6
6.2.2.5 Status AUPC...........................................................................................6-7
6.2.2.6 Status BUC.............................................................................................6-7
6.2.3 Edit Screen.....................................................................................................6-7
6.2.4 Edit->Tx-Rx->Service Screen .........................................................................6-8
6.2.4.1 Terrestrial Interface.................................................................................6-9
6.2.4.2 Rx Values Track Tx.................................................................................6-9
6.2.4.3 Tx/Rx Service..........................................................................................6-9
6.2.4.4 Tx/Rx Rate Control................................................................................6-11
6.2.4.5 Tx/Rx Data Rate ...................................................................................6-11
6.2.4.6 Tx/Rx Symbol Rate...............................................................................6-11
6.2.4.7 Tx Clock Source....................................................................................6-12
6.2.4.8 Rx Clock Source...................................................................................6-12
6.2.4.9 Tx/Rx FEC Type ...................................................................................6-13
6.2.4.10 Tx/Rx Modulation..............................................................................6-13
6.2.4.11 Tx/Rx FEC Code Rate.......................................................................6-13
6.2.4.12 Tx/Rx Frequency Band......................................................................6-14
6.2.4.13 Tx/Rx Carrier Frequency...................................................................6-14
6.2.4.14 Tx/Rx Spectral Roll-off ......................................................................6-15
6.2.4.15 Tx/Rx Spectral Inversion...................................................................6-15
6.2.4.16 Tx Output Power...............................................................................6-16
6.2.4.17 Modem/BUC Carrier..........................................................................6-16
6.2.5 Edit->Tx-Rx->Service->Advanced Screen ....................................................6-16
6.2.5.1 FastLink™Optimisation Mode..............................................................6-16
6.2.5.2 DVB-S2/S2X Tx/Rx Pilot Tones ............................................................6-17
6.2.5.3 DVB-S2/S2X Tx/Rx Frame Size............................................................6-17
6.2.5.4 Sweep Mode.........................................................................................6-17
6.2.5.5 Sweep Width.........................................................................................6-18
6.2.5.6 Acknowledge Power Break ...................................................................6-18
6.2.6 Edit->Tx-Rx->Advanced Timeslot Screens ...................................................6-18
6.2.7 Edit->Tx-Rx->Framing Screen......................................................................6-18
6.2.8 Edit->Tx-Rx->AUPC Screen .........................................................................6-18
6.2.8.1 AUPC Mode..........................................................................................6-19
6.2.8.2 Target Remote Eb/No...........................................................................6-19
6.2.8.3 Maximum Positive AUPC Power Offset.................................................6-19
6.2.8.4 Maximum Negative AUPC Power Offset...............................................6-20
6.2.8.5 AUPC Method.......................................................................................6-20
6.2.8.6 Carrier Loss Action................................................................................6-20
6.2.8.7 Local Demod Unlocked Action ..............................................................6-20
6.2.8.8 Stream Identifier....................................................................................6-21
6.2.8.9 Table 6-23 Stream Identifier.................................................................6-21
6.2.9 Edit->Tx-Rx->BUC/LNB Screen....................................................................6-21
6.2.9.1 BUC Interface .......................................................................................6-21
6.2.9.2 BUC LO Frequency...............................................................................6-22
6.2.9.3 BUC Attenuation...................................................................................6-22
6.2.9.4 DC to BUC............................................................................................6-22
6.2.9.5 10MHz to BUC......................................................................................6-22

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6.2.9.6 Mute BUC Services in Standby.............................................................6-22
6.2.9.7 LNB Type..............................................................................................6-23
6.2.9.8 LNB LO Frequency ...............................................................................6-23
6.2.9.9 DC to LNB.............................................................................................6-23
6.2.9.10 10MHz to LNB...................................................................................6-23
6.2.9.11 Mute LNB Services in Standby..........................................................6-23
6.2.10 Edit->Unit Screen......................................................................................6-24
6.2.11 Edit->Unit->M&C Screen...........................................................................6-24
6.2.11.1 Modem Control and Passwords ........................................................6-25
6.2.11.2 RADIUS Server IP Address and Fallback Address............................6-25
6.2.11.3 RADIUS Shared Secret.....................................................................6-25
6.2.11.4 RADIUS Authentication Validity.........................................................6-26
6.2.11.5 RADIUS Server Timeout ...................................................................6-26
6.2.11.6 Remote M&C Interface......................................................................6-27
6.2.11.7 Modem Identity..................................................................................6-29
6.2.11.8 Submit Mode.....................................................................................6-29
6.2.12 Edit->Unit->M&C->SNMP Screen.............................................................6-29
6.2.13 Edit->Unit->M&C->Email Screen...............................................................6-30
6.2.14 Edit->Unit->M&C->HTTPS Screen............................................................6-33
6.2.15 Edit->Unit->Alarms Screen .......................................................................6-33
6.2.15.1 LinkGuard™ Interference..................................................................6-34
6.2.15.2 Tx/Rx AIS Alarm Action.....................................................................6-34
6.2.15.3 Local/Remote Eb/No Alarm Threshold ..............................................6-34
6.2.15.4 Buffer Slip Alarm Threshold...............................................................6-34
6.2.15.5 BUC DC Current Alarm.....................................................................6-35
6.2.15.6 Ethernet Port Down Alarms...............................................................6-35
6.2.16 Edit->Unit->Station Clock Screen..............................................................6-35
6.2.16.1 Station Clock Source.........................................................................6-36
6.2.16.2 Station Clock Frequency...................................................................6-36
6.2.16.3 Locking the High-Stability Oscillator to the Station Clock...................6-36
6.2.17 Edit->Unit->SAF Screen............................................................................6-36
6.2.18 Edit->Unit->Upgrade Screen.....................................................................6-37
6.2.19 Edit->Unit->Miscellaneous->Time Screen.................................................6-42
6.2.1 Edit->Unit->Miscellaneous->Reset Screen ...................................................6-42
6.2.1 Edit->Unit->Miscellaneous->NTP Screen......................................................6-43
6.2.2 Edit->Unit->Carrier ID Screen.......................................................................6-43
6.2.2.1 Carrier ID Global Unique Identifier ........................................................6-44
6.2.2.2 Carrier ID Latitude and Longitude .........................................................6-44
6.2.2.3 Carrier ID Custom Message and Telephone Number............................6-44
6.2.2.4 Carrier ID..............................................................................................6-44
6.2.3 Edit->IP Screen ............................................................................................6-44
6.2.3.1 IP Mode ................................................................................................6-45
6.2.3.2 Bridge M&C...........................................................................................6-47
6.2.3.3 TCP Acceleration..................................................................................6-48
6.2.3.4 Round-trip Satellite Delay......................................................................6-49
6.2.3.5 Header Compression............................................................................6-49
6.2.3.6 Payload Compression...........................................................................6-49
6.2.3.7 ACM Mode............................................................................................6-49
6.2.3.8 ACM Rain Fade Margin.........................................................................6-50
6.2.3.9 M&C IP Address, Subnet Mask & Modem IP Gateway..........................6-51
6.2.3.10 Traffic/Satellite IP Addresses and Subnet Masks..............................6-51
6.2.3.11 IP Encapsulation Type ......................................................................6-52

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6.2.3.12 Encapsulation PID.............................................................................6-52
6.2.3.13 MPE MAC Address...........................................................................6-53
6.2.3.14 Weighted QoS...................................................................................6-53
6.2.3.15 Ethernet Speed/Duplex.....................................................................6-54
6.2.3.16 IPv4/IPv6 Mode.................................................................................6-55
6.2.3.17 Ethernet MTU....................................................................................6-55
6.2.3.18 M&C VLAN........................................................................................6-55
6.2.4 Edit->IP->Advanced Screen..........................................................................6-55
6.2.4.1 Terrestrial Buffer Size ...........................................................................6-56
6.2.4.2 Satellite Buffer Size...............................................................................6-57
6.2.4.3 Active Queue Management...................................................................6-57
6.2.4.4 Enable DHCP Server............................................................................6-58
6.2.4.5 Enable NAT...........................................................................................6-58
6.2.4.6 DHCP Server Start/End Addresses and Traffic IP Address...................6-59
6.2.4.7 DNS IP Address....................................................................................6-59
6.2.4.8 Ethernet Address Learning....................................................................6-59
6.2.4.9 VLAN Filtering.......................................................................................6-59
6.2.4.10 Web Acceleration..............................................................................6-60
6.2.4.11 DNS IP Address................................................................................6-60
6.2.4.12 Enable Dynamic Routing...................................................................6-60
6.2.4.13 sFlow Metrics Collection....................................................................6-61
6.2.4.14 Null Packet Insertion .........................................................................6-61
6.2.4.15 PCR Restamping ..............................................................................6-61
6.2.4.16 MPEG Over IP Type..........................................................................6-62
6.2.4.17 TS Data Rate and Nominal De-jitter Buffer Delay..............................6-62
6.2.4.18 Destination Address and Destination Port.........................................6-63
6.2.4.19 Local Multicast Address and Local Port.............................................6-63
6.2.4.20 Stream Tx/Rx Terrestrial Interface.....................................................6-63
6.2.4.21 Stream Tx/Rx Identifier......................................................................6-63
6.2.4.22 Stream Tx Data Rate.........................................................................6-63
6.2.4.23 Stream Tx Modulation.......................................................................6-64
6.2.4.24 Stream Tx FEC Code Rate................................................................6-64
6.2.4.25 Stream Tx Pilot Tones.......................................................................6-64
6.2.4.26 Stream Tx Frame Size ......................................................................6-64
6.2.4.27 Tx/Rx Symbol Rate ...........................................................................6-64
6.2.4.28 Point-to-multipoint Operation.............................................................6-65
6.2.4.29 VLAN Filtering...................................................................................6-65
6.2.4.30 Download Root Authority Security Certificate....................................6-66
6.2.5 Edit->IP->QoS Screen..................................................................................6-66
6.2.6 Edit->IP->Static Routes Screen....................................................................6-66
6.2.7 Edit->IP->Header Compression Routes Screen............................................6-67
6.2.8 Edit->Paired Carrier Screen..........................................................................6-68
6.2.8.1 Paired Carrier Enable............................................................................6-69
6.2.8.2 Round-trip Delay...................................................................................6-72
6.2.8.3 Satellite Longitude.................................................................................6-73
6.2.8.4 Earth Station Longitude.........................................................................6-73
6.2.8.5 Earth Station Latitude............................................................................6-73
6.2.8.6 Minimum Round-trip Delay....................................................................6-73
6.2.8.7 Maximum Round-trip Delay...................................................................6-73
6.2.8.8 Auto Acquire .........................................................................................6-74
6.2.8.9 Station...................................................................................................6-74
6.2.9 Edit->Memories Screen................................................................................6-74

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6.2.9.1 Edit->Memories->Recall Screen............................................................6-75
6.2.9.2 Edit->Memories->Recall->Advanced Reversionary Control Screen.......6-75
6.2.9.3 Edit->Memories->Store Screen.............................................................6-77
6.2.9.4 Edit->Memories->Download Screen......................................................6-77
6.2.9.5 Edit->Memories->Upload Screen..........................................................6-78
6.2.10 Edit->Redundancy Screen........................................................................6-78
6.2.11 ClearLinQ™ Tx Adaptive Predistorter Screens.........................................6-80
6.2.12 View Screen..............................................................................................6-83
6.2.12.1 Rx Spectrum Monitor.........................................................................6-83
6.2.12.2 Rx Constellation Monitor...................................................................6-85
6.2.12.3 IP Graphs..........................................................................................6-87
6.2.12.4 Other Time-based Graphs.................................................................6-89
6.2.12.5 Alarms...............................................................................................6-90
6.2.12.6 System Log.......................................................................................6-91
6.2.12.7 View->Setup Screen .........................................................................6-91
6.2.12.8 View->Unit Screen ............................................................................6-91
6.2.12.9 View->SAF Screen............................................................................6-92
6.2.13 Test Screen ..............................................................................................6-92
6.2.14 BER Test ..................................................................................................6-94
6.2.15 IP Test Features .......................................................................................6-95
6.3 Front-panel Interface ........................................................................................6-97
6.3.1 Keypad Operation.........................................................................................6-97
6.3.1.1 Cursor...................................................................................................6-97
6.3.1.2 Navigation Keys....................................................................................6-97
6.3.1.3 Alphanumeric Keys...............................................................................6-98
6.3.1.4 Special Function Keys...........................................................................6-98
6.3.2 LCD Screen Layout ......................................................................................6-98
6.4 Front Panel Menu Structure..............................................................................6-99
6.4.1 Main Menu....................................................................................................6-99
Chapter 7 Modem Concepts.......................................................................... 7-101
7.1 System Clocking.............................................................................................7-101
7.1.1 Transmit Clocking.......................................................................................7-101
7.1.1.1 Internal Clock......................................................................................7-101
7.1.1.2 Tx Clock In..........................................................................................7-102
7.1.1.3 Receive Reference..............................................................................7-103
7.1.2 Receive Clocking........................................................................................7-103
7.1.2.1 Satellite...............................................................................................7-103
7.1.2.2 Tx Clock In..........................................................................................7-104
7.1.2.3 Station Clock.......................................................................................7-104
7.1.2.4 Internal Clock......................................................................................7-105
7.1.3 Guidelines for Clocking Configuration.........................................................7-105
7.1.3.1 Clock Loop at One End........................................................................7-105
7.1.3.2 No Clock Loop.....................................................................................7-106
7.1.3.3 Determining Buffer Size ......................................................................7-106
7.1.3.4 G.703 Clock Extension........................................................................7-106
7.2 Automatic Uplink Power Control.....................................................................7-107
7.2.1 Introduction.................................................................................................7-107
7.2.2 Configuring AUPC ......................................................................................7-108
7.3 1:1 Redundancy Operation.............................................................................7-108
7.3.1 Overview.....................................................................................................7-108
7.3.2 Switching Operation....................................................................................7-109

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7.3.3 Setup Procedure.........................................................................................7-109
7.3.4 IP Addressing and Operation in Redundancy Configurations......................7-110
7.3.4.1 1:1 IP Operation..................................................................................7-110
7.3.4.2 1:N IP Operation.................................................................................7-111
7.4 Software Activated Features...........................................................................7-111
7.5 Software Upgrading........................................................................................7-112
7.6 LinkGuard™ Interference Detection................................................................7-112
7.7 FastLink Low-latency LDPC............................................................................7-113
7.8 IP Functionality...............................................................................................7-114
7.8.1 Base Modem IP..........................................................................................7-114
7.8.2 IP Addressing.............................................................................................7-114
7.8.2.1 Gateways............................................................................................7-115
7.8.3 Throughput Performance............................................................................7-115
7.8.4 Jumbo Ethernet Frame Support..................................................................7-115
7.8.5 M&C VLAN.................................................................................................7-115
7.8.6 IP Over ESC...............................................................................................7-116
7.8.7 IP Interoperability........................................................................................7-117
7.8.8 IP Connectivity Modes................................................................................7-117
7.8.9 TCP Acceleration........................................................................................7-117
7.8.10 Traffic Shaping........................................................................................7-118
7.8.10.1 Guaranteed Bandwidth....................................................................7-118
7.8.10.2 Maximum Bandwidth.......................................................................7-118
7.8.10.3 Priority.............................................................................................7-119
7.8.10.4 Stream Classification.......................................................................7-119
7.8.10.5 Traffic Shaping Graphs ...................................................................7-123
7.8.11 Static and Dynamic Routing....................................................................7-123
7.8.12 Header Compression..............................................................................7-124
7.8.13 VLAN Operation......................................................................................7-125
7.8.14 Adaptive Coding and Modulation (ACM).................................................7-125
7.9 DVB-S2, DVB-S2X and SmartLink..................................................................7-126
7.10 Paired Carrier+...............................................................................................7-129
7.11 Antenna Control..............................................................................................7-133
7.12 Beacon Receiver............................................................................................7-135
7.13 Point-to-multipoint Interoperation with QMultiFlex-400 Hub............................7-136
Chapter 8 Remote Control Protocol.............................................................. 8-137
Chapter 9 Data Interfaces.................................................................................. 9-1
Chapter 10 Connector Pinouts......................................................................... 10-1
Chapter 11 Fault Messages.............................................................................. 11-1
11.1 Transmit Faults.................................................................................................11-1
11.2 Transmit Warnings ...........................................................................................11-3
11.3 Receive Faults..................................................................................................11-4
11.4 Receive Warnings ............................................................................................11-5
11.5 Unit Faults........................................................................................................11-7
11.6 Unit Warnings...................................................................................................11-7
11.7 Start-up Problems.............................................................................................11-8
Chapter 12 Specification Summary ................................................................. 12-8

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12.1 Common Main Specifications ...........................................................................12-8
12.2 Tx Modulator Specifications............................................................................12-11
12.3 Rx Demodulator Specifications.......................................................................12-11
12.4 Clocking and Buffering Specifications.............................................................12-12
12.5 Framing and Deframing Specifications ...........................................................12-13
12.6 Drop and Insert Option Specifications.............................................................12-13
12.7 Extended Drop and Insert Option Specifications.............................................12-14
12.8 BERT Option Specifications............................................................................12-14
12.9 AUPC Specifications.......................................................................................12-15
12.10 Traffic Log Specifications............................................................................12-15
12.1 Common Specifications..................................................................................12-15
12.2 Internet Traffic ................................................................................................12-17
12.3 BUC / LNB facilities ........................................................................................12-17
12.4 FEC BER/PER Performance ..........................................................................12-17
12.4.1 DVB-S2/X performance for QFlex-400 and Q-Lite:..................................12-18
12.4.2 FastLink..................................................................................................12-21
12.4.3 TPC ........................................................................................................12-21
12.4.4 DVB-S/DSNG .........................................................................................12-21
12.5 FEC Minimum/Maximum Data Rates..............................................................12-22
Chapter 13 Advanced Framing......................................................................... 13-1
13.1 Edit->Tx-Rx->Framing Screen...........................................................................13-1
13.2 Edit->Tx-Rx>Framing->Overhead Closed Screen..............................................13-2
13.3 Edit->Tx-Rx>Framing->Overhead IBS Screen...................................................13-4
13.4 Edit->Tx-Rx>Framing->Overhead IDR Screen...................................................13-5
13.5 G.703 Menus and Operation .............................................................................13-6
13.6 Quad E1 and MultiMux Menus and Operation..................................................13-10
Chapter 14 Q-Lite Series................................................................................. 14-20
14.1 Line Supply ...................................................................................................14-21
14.2 Mounting in an Enclosure.............................................................................14-21
14.3 Getting Started..............................................................................................14-21
14.4 Enclosure Design Guidelines.......................................................................14-22
14.4.1 Temperature Warnings and Alarms.....................................................14-23
14.5 Standard-Fit Hardware..................................................................................14-24
14.5.1 L-band Operation..................................................................................14-24
14.5.2 Ethernet Operation ...............................................................................14-24
14.6 Hardware Options.........................................................................................14-24
14.6.1 Terrestrial Interface Option Cards.......................................................14-24
14.6.1.1 EIA-530 Option Card .....................................................................14-25
14.6.1.2 IDR Option Card ............................................................................14-25
14.6.1.3 LVDS Option Card.........................................................................14-25
14.6.1.4 HSSI Option Card..........................................................................14-25
14.6.1.5 Quad E1 Option Card....................................................................14-25
14.6.2 Other Option Cards...............................................................................14-25
14.6.3 BUC Power Supply Options.................................................................14-26
14.7 Optional Front Panel.....................................................................................14-26
14.7.1 Status Indicators...................................................................................14-26
14.7.1 LCD Display............................................................................................14-27
14.7.1.1 Keypad...........................................................................................14-27
14.1 Q-Lite™ Circuit Board Connectors..................................................................14-27
14.2 Utilities Card Connectors..............................................................................14-30

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14.3 User Control..................................................................................................14-31
14.3.1 Local Mode............................................................................................14-31
14.3.2 Takeaway Mode.....................................................................................14-31
14.4 Web User Interface........................................................................................14-32
14.5 Front-panel Interface.....................................................................................14-32
14.5.1 Keypad Operation.................................................................................14-32
14.5.1.1 Cursor............................................................................................14-32
14.5.1.2 Navigation Keys ............................................................................14-32
14.5.1.3 Alphanumeric Keys.......................................................................14-33
14.5.1.4 Special Function Keys..................................................................14-33
14.5.2 LCD Screen Layout...............................................................................14-34
14.6 Front Panel Menu Structure..........................................................................14-34
14.6.1 Main Menu.............................................................................................14-34
14.7 Connector Pinouts..........................................................................................14-35
Chapter 15 Glossary ....................................................................................... 15-39
Chapter 16 Technical Support........................................................................ 16-39

QFlex-400 and Q-Lite Satellite Modem Installation and Operating Handbook
1-1
Chapter 1 Welcome
Figure 1-1 QFlex-400 Advanced COTM Satellite Modem
The QFlex-400 satellite modem (Figure 1-1) embodies a new concept in satellite modem
technology: a short chassis, flexible software-defined modem, which allows an easy future
upgrade path. The Modem provides a flexible hardware platform with support for IF (50 -
180MHz) and L-band (950 –2450MHz) operation in one unit. Its powerful processor is ideal
for handling IP traffic. However, the QFlex-400 modem can be fitted with virtually any type
of terrestrial interface and will operate at data rates up to 345Mbps.
The QFlex-400 dual band satellite modem has a powerful processor that is ideal for
handling IP traffic. In common with other Q Series modems, it incorporates a software suite
called XStream IP™. This has been created to provide the best quality of service provided
by IP-over-satellite, where Paradise has re-engineered every aspect of IP support from the
ground up to ensure ease of use, a high degree of integration between features and
outstanding performance and efficiency.
Specifically:
•XStream IP™an advanced integrated suite of IP optimisation and traffic management
features.
•XStream IP™is specifically optimised to be highly efficient and reliable over satellite.
•XStream IP™provides 150,000 packets-per-second processing capability for
lightning-fast IP throughput. (200,000pps in Trunking mode)
•XStream IP™is simple to set up, use and gather metrics.
The design aim for Paradise’s Q Series modems, of which the QFlex-400 is one, was to
create the industry’s most versatile and bandwidth-efficient satellite modem. Among the
satellite bandwidth saving features available are:
•Paired Carrier+, allowing two carriers to be overlapped in the space segment,
saving up to 50% bandwidth.
•DVB-S2 and DVBS2X state-of-the-art Forward Error Correction (FEC)
representing the most bandwidth-efficient and robust FEC technology available.
•Spectral roll-off factors down to 5%, saving up to 15% bandwidth compared with
20% roll-off.
•IP compression, saving up to 50% bandwidth.
•Adaptive Coding and Modulation (ACM), saving up to 50% bandwidth.
•TCP Acceleration, enabling up to 93% bandwidth utilization for TCP traffic.
•ClearLinq™Tx adaptive pre-distorter, providing up to 2dB compensation for
linear and non-linear distortion in the channel.
•9-tap Rx equaliser, providing compensation for linear distortion in the channel,
such as from group delay. The equaliser is automatically switched on in all modes
of operation above 10Msps.