0% found this document useful (0 votes)
72 views22 pages

Eclipse Quattro

Eclipse Quattro

Uploaded by

Pablo Barboza
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
0% found this document useful (0 votes)
72 views22 pages

Eclipse Quattro

Eclipse Quattro

Uploaded by

Pablo Barboza
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 22

QUATTRO

Product Overview
Revision 2a, November 2004
Contents

Introduction...................................................................................................... 3
Key Features..................................................................................................... 3
System Overview............................................................................................... 6
Equipment Configurations............................................................................. 10
Appendix A: Eclipse RAC40 .......................................................................... 15
Appendix B: Channel Arrangements ............................................................ 20
Abbreviations.................................................................................................. 21
Further Information ...................................................................................... 22

Page 2 of 22 Eclipse Quattro Product Overview


Introduction
Eclipse Quattro provides a simple solution for ultra-high capacity wireless transmission
applications, with the convenience, compact size and economy delivered by a split-
mount radio architecture.

In situations where fiber is not available or cannot be installed, operators have often
been forced to replace existing split-mount equipment with so-called ‘trunking’ radio
equipment, which are characteristically all-indoor systems designed to scale in
capacity up to 14xSTM-1. This equipment is large, more difficult to install and maintain,
requires expensive retraining and new spares costs, as well as the installation of
waveguide and supporting pressurization sub-systems.

Eclipse Quattro provides the perfect alternative, extending Super-PDHTM capacities


from 64 to 128, 192 and 256xE1 (84 to 168, 252 and 336xDS1), all with the compact
indoor solution with built-in traffic cross-connection and add & drop to eliminate
external equipment and lower the cost of deploying high capacity wireless systems.

Key Features
Eclipse Quattro offers a number of key benefits:

• Available in all released Eclipse frequency bands


• Extends capacity migration of Eclipse platform up to 622 Mbps
• 4x 64xE1 (256xE1) aggregate capacity, with optional 4xSTM1
• 64 QAM modulation for improved system performance
• Optional XPIC facility for cross-pole operation
• NxE1/DS1 or STM1/OC3 network interface options
• Linear trunking or Concentric RingTM operation
• Greatly reduced equipment occupancy
• Super-PDH NxE1 add/drop without multiplexers
• No long elliptical waveguide runs and pressurization equipment
• Re-use of existing antennas
• No impact to existing shelters, towers or plant
• Integrated trunking/access solution

Rev 2, November 2004 Page 3 of 22


Figure 1. Eclipse Quattro 4x64xE1 terminal with XPIC (outdoor
equipment not shown)

Less rack space, less floor space


By using Eclipse Quattro, operators can dramatically reduce the amount of space
required to house high-capacity trunking systems. Instead of needing additional floor
space and vertical clearance, a complete Eclipse Quattro repeater can be installed in
an existing equipment rack for minimal interruption to existing facilities and network
operations.

4+0 Repeater site comparison

4 RU 2x44 RU

Eclipse

Traditional
(Harris Megastar)

Figure 2. Dramatic space savings with Eclipse Quattro

Page 4 of 22 Eclipse Quattro Product Overview


Capacity migration saves on upgrade costs
Eclipse Quattro provides smooth migration from low- to medium-PDH through to ultra-
high capacity Super-PDH on a common platform, enabling the re-use of radio and
antenna equipment with minimal equipment change-out.

In comparison, competing systems require switching to new and incompatible radio


platforms when moving from low-capacity PDH to SDH/STM-1, and then when moving
from STM-1 to higher-capacity trunking system.

Competing

4xSTM1
Trunk SDH
Radio

3xSTM1
Competing
2xSTM1

Cumulative Link Upgrade Cost


Split-Mount
SDH Radio
Equipment Change Out

Competing
PDH Radio

256xE1
Equipment Change Out

1xSTM1

192xE1
128xE1
64xE1
32xE1
16E1
8E1
4E1

Eclipse Eclipse Quattro

Figure 3. Capacity migration and cumulative costs

Rev 2, November 2004 Page 5 of 22


System Overview
General
Eclipse Quattro utilizes existing system components of the Eclipse Platform, including
the INU, INUe and ODU300. This enables a simple upgrade path from a single
channel non-protected or protected Eclipse system to the multi-channel Eclipse
Quattro configuration. Existing hardware can be re-used to avoid costly equipment
change-outs and redeployments.

Eclipse Network Nodes


Wireless transmission systems have been traditionally based on a simple terminal-to-
terminal architecture. This approach worked for applications where you wanted to
establish a link between two points, but when it comes to building a network it is very
inefficient. Advanced networking technologies such as SDH, ATM and Ethernet, are all
based upon network topologies, comprising hubs and nodes.

The novel design features of Eclipse combine to provide the most efficient solution
available yet for the construction of wireless transmission networks. These features
include:

• Compact, modular Indoor Unit design supporting multiple radio paths to


eliminate multiple indoor units;

• High-speed bus architecture enabling traffic routing without external cabling;

• Super-PDH capacity options to replace SDH wireless systems for high-speed


transmission requirements.

Eclipse’s nodal architecture redefines the way wireless backhaul networks are
designed, procured, implemented, upgraded and operated. Nodes are easy to
implement and expand because inbuilt simplicity and commonality transforms directly
into cost savings.

Super-PDH
Eclipse offers an alternative to traditional backhaul network
architectures with its new high-speed Super-PDH networking that
expands the reach of PDH from the network edge right through to the
high-capacity core.

Eclipse Super-PDH is a cost-effective alternative to SDH, providing


capacities of 32, 48 and 64xE1, or 28, 56 and 84xDS1, to fill the
capacity gap between PDH and SDH/SONET.

Eclipse Super-PDH networking provides most of the benefits of SDH


or SONET, including self-healing PDH ring architectures with built-in
protection switching, and E1/DS1 circuit provisioning and
performance monitoring. Wander-free Super-PDH networks are also
an optimum solution for synchronization transport in mobile networks.

Page 6 of 22 Eclipse Quattro Product Overview


Intelligent Node Unit
The Eclipse Intelligent Node Unit (INU) is an
indoor rack-mounted unit, which enables the
network node capability. Available in standard
1RU or expanded 2RU shelf options, the INU
supports multiple ODUs and traffic routing
without external cabling.

The INU provides a capacity-independent


design, and can be software configured for
NxE1/DS1, NxE3/DS3 or NxSTM1/OC3 operation.

Network node functions are integrated into the design, including traffic add-and-drop,
north-south traffic aggregation and concentration, with options for hardware, ring and
diversity path protection, all with built-in switching.

The INU provides a highly modular design, enabling quick maintenance through the
exchange of hot swappable access cards, and easy upgrade to add new links into an
existing node.

Local add-and-drop traffic can be changed or expanded using optional Data Access
Cards, providing a selection of traffic interface densities and types, including both Time
Division Multiplexed, or TDM (E1/DS1, E3/DS3, STM1/OC3), or Ethernet (IP/ATM), or
a combination of the two.

A new link can be added to an existing node by inserting another Radio Access Card
to the shelf. Traffic can then be reconfigured through the node by software control.

ODU300
The Eclipse ODU300 is the most flexible outdoor unit available on
the market, designed to carry capacities from 4x E1/DS1 to 2x
STM-1/OC-3 and modulation rates from QPSK to 256 QAM without
any hardware modification, spanning frequency bands from 5 to
23 GHz in the same mechanical design.

The ODU300 interfaces to the INU or INUe using the RAC30,


RAC3x or RAC40 interface cards.

Radio Access Cards (RAC)


The Radio Access Card (RAC) is a module located in the INU that provides the
interface to the ODU300. The RAC converts baseband data taken from the INU TDM
Bus into an intermediate frequency (IF) signal for transmission over coaxial cable to
the ODU.

Rev 2, November 2004 Page 7 of 22


Several Eclipse RACs are available according to the application required:

RAC 30. Supports capacities from 4xE1/DS1 to


75xE1/84xDS1 or 1xSTM1/OC3, with bandwidths
up to 30 MHz.

RAC 40. Supports capacities of up to 256xE1/336DS1 64


QAM to 1xSTM1/OC3 128 QAM, in 28 to 30 MHz
bandwidths. Also provides optional co-channel
operation with XPIC (See Appendix A).

RAC 3x. Supports channel bandwidths greater than 30


MHz, including the following options:

• 1xSTM1/OC3 (64 QAM) in 40 MHz


• 2xSTM1 (128 QAM) in 55/56 MHz
• 2xOC3 (256 QAM) in 50 MHz

Capacity Options
The Eclipse Quattro supports Nx64xE1 or Nx84xDS1 Super-PDH configurations
including terminal, repeater and nodal arrangements. Repeater and node sites include
built-in traffic add and drop capability, instead of using external multiplexers. SDH and
SONET configurations are also supported where Eclipse Quattro support transparent
NxSTM1/OC3 up to a total capacity of 622 Mbps. The capacity/modulation options are
listed in Table 1.

Capacity Modulation Channel Bandwidth


2x 64xE1 64QAM 27.5/28/29.65 MHz
3x 64xE1 64QAM 27.5/28/29.65 MHz
4x 64xE1 64QAM 27.5/28/29.65 MHz
2x 84xDS1 64QAM 30 MHz
3x 84xDS1 64QAM 30 MHz
4x 84xDS1 64QAM 30 MHz
2x STM1/OC3 128QAM 27.5/28/29.65/30 MHz
3x STM1/OC3 128QAM 27.5/28/29.65/30 MHz
4x STM1/OC3 128QAM 27.5/28/29.65/30 MHz

Table 1. Available Capacity/Modulation options

Page 8 of 22 Eclipse Quattro Product Overview


Channel Arrangements
Eclipse Quattro operates in up to four discrete RF channels using a standard dual pole
antenna. Using the Eclipse ODU Combiner, two RF channels can be multiplexed onto
each polarization, allowing a single antenna to be used. Two ODU/Coupler assemblies
are remote mounted and connected to the antenna via flexible waveguide.

Using the standard Eclipse RAC30 Radio Access Card, an alternated or adjacent
channel arrangement can be used to combine up to four channels on a single antenna.
Using the combiner arrangement, a maximum of two ODUs can operate on the same
polarization.

No. of Scheme * RAC Options Total Example


Channels Bandwidth Arrangement
2 ACAP RAC30 or RAC40 56 MHz 1V, 2H
2 ACCP RAC30 or RAC40 56 MHz 1V, 2V
2 CCDP RAC40 28 MHz 1V, 1H
3 ACAP RAC30 or RAC40 84 MHz 1V, 2H, 3V
3 ACCP RAC30 or RAC40 84 MHz 1V, 2V, 3V
3 CCDP RAC40 56 MHz 1V, 2V, 2H
4 ACAP RAC30 or RAC40 112 MHz 1V, 2H, 3V, 4H
4 ACCP RAC30 or RAC40 112 MHz 1V, 2V, 3H, 4H
4 CCDP RAC40 56 MHz 1V, 1H, 2V, 2H
* For explanation of channel schemes refer to Appendix 2.

Table 2. Example channel arrangements

With the introduction of a new Radio Access Card (RAC40), Eclipse Quattro supports
cross-polar interference cancellation (XPIC). This allows the same frequency to be re-
used on a link, doubling the amount of traffic carried using a single frequency pair.

The RAC 40 uses a sample of the unwanted signal received on the opposite
polarization to cancel the co-channel interference caused in the wanted signal. This
cancellation results in an improved polarization discrimination. More details of this card
are provided in Appendix A.

Mixed Super-PDH/SDH Operation


Each Eclipse Quattro RF channel is able to operate independently to the other
channels in terms of capacity and modulation. This means that in a 4+0 system, one or
more of the channels can operate at 64xE1 64QAM, while the remaining channels
could operate at STM1, 128QAM. Even for co-channel operation using XPIC, one
polarization can be running Super-PDH while the other operates at SDH/SONET.

Rev 2, November 2004 Page 9 of 22


Equipment Configurations
Eclipse Quattro Terminal
As shown by Figure 4 below, a terminal consists of an INU, ODU and interconnecting
cable per RF channel. Each channel supports either 64xE1 or 84xDS1 Super-PDH.

To simplify the customer network hand-off, interconnection to traffic switching or cross-


connect equipment can be performed by equipping each INU with an Eclipse DAC
155oM card, which maps the NxE1 Super-PDH format to an optical STM1/OC3
customer interface. Alternatively multiple DAC 16x’s can be used. An NPC can be
optionally fitted to each INU/INUe to provide additional power supply and TDM Bus
redundancy.

4x64xE1 or 4x84xDS1 (4+0) Terminal


With 4xSTM1/OC3 Network Interface
Each INU equipped with 1xRAC30/40, 1xDAC 155oM & NPC

CH1V
64xE1/84 DS1
V
CH2V

64xE1/84 DS1
CH1H

64xE1/
84 DS1

H
CH2H

64xE1/
84 DS1

4xSTM1/OC3
Network Interface

Figure 4. Eclipse Quattro 256xE1/336xDS1 Terminal

In the case of a 4xSTM1/OC3 terminal, the 4xINU’s can be replaced by just two
INUe’s, as shown in Figure 5. This reduces by half the number of NCC, NPC and FAN
cards required, while occupying the same amount of rack space.

Page 10 of 22 Eclipse Quattro Product Overview


4xSTM1 (4+0) Terminal
Each INUe equipped with 2xRAC30/40, 2xDAC 1x155o & NPC

CH1V
STM1
V

CH3V
STM1

CH2H
STM1

CH4H
STM1

4xSTM1

Figure 5. Eclipse Quattro 4xSTM1/OC3 Terminal

Eclipse Quattro Repeater or Ring Node


Eclipse Quattro enables a complete repeater to be implemented using 4xINUs,
providing integrated traffic add and drop. As shown by Figure 6, each INU includes a
DAC 16x to enable up to 16xE1/DS1s to be dropped from each 64xE1/84xDS1 RF
channel, without the use of separate Multiplexers. Pass-through traffic is connected
internally without the need for external cabling and patch panels. Further E1s can be
dropped with an additional DAC 16x, or alternatively, a DAC 155oM card can be used
to drop E1/DS1s through an STM1/OC3 interface. If more slots are required, one or
more of the INUs can be exchanged for an INUe.
4x64xE1 (4+0) Repeater with Add/Drop
Each INU equipped with 2xRAC30, 1xDAC 16x & NPC
CH3V

CH1V

64xE1 64xE1
V V
CH4V

CH2V

64xE1 64xE1
CH3H

CH1H

64xE1 64xE1

H H
CH2H
CH4H

64xE1 64xE1

4x16xE1 Add and Drop

Figure 6. Eclipse Quattro 256xE1/336xDS1 Add & Drop Repeater

Rev 2, November 2004 Page 11 of 22


For STM1/OC3 applications, the repeater configuration would be the same as shown
in Figure 6, except that the DAC 16x in each INU is replaced by a DAC 2x155o or DAC
2x155e, providing access to the East and West STM1/OC3 for each RF path. An
external SDH/SONET multiplexer or switch is then required to access the traffic
payload.

For Ring Node applications the arrangement is identical to the repeater configuration
above. In this case traffic is protected by the Eclipse Super-PDH Wrapping mechanism
(see Concentric Rings below).

Protection and Diversity Options


Eclipse Quattro can be configured to provide hot standby and space diversity
protection. This is achieved in an N+N arrangement, where a redundant
protection/diversity channel supports each traffic channel. Systems can be upgraded to
a protected configuration simply by adding further indoor modules and outdoor units.
Both hot standby and space diversity configurations require the use of two antennas
per direction.

4x64xE1 (4+4) Repeater with Space Diversity


Each INUe equipped with 4xRAC40, 1xDAC 16x or 2xDAC 1x155o, & NPC

CH1AV
CH3AV

V V

CH2AV
CH4AV

CH1AH
CH3AH

H H
CH2AH

Main
CH4AH

Main Antenna
Antenna
CH1BV
CH3BV

V V
CH2BV
CH4BV

CH1BH
CH3BH

H
CH2BH

H
CH4BH

Diversity
Diversity 4xSTM1/OC3 Antenna
Antenna or 4x16xE1/DS1
Add & Drop

Figure 7. Eclipse Quattro 256xE1/336xDS1 Repeater with Space Diversity

Page 12 of 22 Eclipse Quattro Product Overview


Antenna Requirements
To operate in a multi-channel mode Eclipse Quattro generally
requires the use of a high-performance, dual-pole antenna. These
antennas incorporate an ortho-mode transducer (OMT) to combine
separate signal inputs in the vertical and horizontal polarizations.

Alternatively two plane (ie: single) polarized can be used to


eliminate the ODU combiners and maximize system performance
where tower conditions allow.

To achieve satisfactory cross-pole performance, a standard dual


pole antenna can be used. These antennas provide approximately
30dB of x-pole discrimination (XPD). Examples of these antennas
are the Andrew HPX or VHPX series.

System Performance
Eclipse Quattro utilizes passive ODU combiners in 4+0 and 2+0 co-polar applications.
This combiner and associated flex waveguide connections contribute an additional
system gain loss. However, these additional losses are offset by the improved system
gain provided by 64 QAM modulation for 256xE1 applications.

Table 3 below details system performance specifications for Eclipse Quattro. Power
output and receiver threshold figures are referenced to the ODU antenna flange
(excluding additional ODU combiner losses), while the net system gain is the total
including ODU combiner losses at each end of the link.

Capacity Modulation Power Receiver Coupler Net System


Output Threshold Loss Gain
(a) (b) (c) (a+b-c)
256xE1 64QAM 25.5 dBm -73 dBm -7.6 dB 90.9 dB
4xSTM1 128QAM 25.5 dBm -70 dBm -7.6 dB 87.9 dB
Note: Figures shown are for 7GHz band. Performance and coupler losses will vary for other bands. Refer to the
Eclipse Platform Datasheet for details.

Table 3. Eclipse Quattro System Performance

Rev 2, November 2004 Page 13 of 22


Concentric Rings
Further leveraging Super-PDH technology, Eclipse Quattro also enables Concentric
Ring network architectures, so that operators can build nested, ultra-high capacity,
self-healing rings with built-in traffic adds and drops. All functions are contained in
Eclipse Quattro wireless nodes without requiring external multiplexers or switches.

Utilizing the same indoor node and outdoor unit components from the existing Eclipse
platform, Eclipse Quattro brings together trunk and access wireless systems into an
integrated network solution that streamlines deployment and simplifies maintenance
and spares holding.

4xSTM1 Network Interface

Gateway Node

NxE1
NxE1
Add/Drop
Add/Drop

Eclipse Super-PDH
256xE1/336xDS1
Concentric Ring
Node C Network Node A

64xE1/84xDS1
Ring 1
Node B
64xE1/84xDS1
Ring 2

64xE1/84xDS1
Ring 3
64xE1/84xDS1
Ring 4
NxE1
Add/Drop

Figure 8. Eclipse Quattro Concentric Ring Network (INUs only shown)

Page 14 of 22 Eclipse Quattro Product Overview


Appendix A: Eclipse RAC40
General Description
The RAC 40 circuitry is a separate plug-in module for the Eclipse INU and INUe.
Similarly to the RAC30, the RAC 40 INU to ODU cable interface is via an SMA IF
connector. Two further SMA front-panel connectors provide interconnection between
the two RAC40s that together form a co-channel path.

Figure A1. RAC40

The RAC40 includes a TDM bus interface, a multiplexer/demultiplexer section, a set of


modems to facilitate polarization diversity/cancellation, and an IF section that provides
an interface between the ODU and the RAC. Secondary supplies and ODU power
protection circuits are also included on the board.

The RAC40 can be operated in single channel/non-XPIC mode, instead of a regular


RAC30, providing an upgrade path to co-channel operation without hardware changes.

Figure A2. 2xSTM1 Terminal in one INU and 2xRAC40s

Rev 2, November 2004 Page 15 of 22


RAC40 XPIC Operation
The RAC40 consists of two modem chipsets set up in master and slave modes
respectively. The master chip receives a signal from one polarization that is partly
corrupted by lack of polarization discrimination due to imperfect antennas and
propagation effects. The master chip filters and demodulates its signal and removes
the corrupting signal with the signal from the slave. The slave modulates the
transmitter signal, and also receives a cross-polarization signal from the
complementary RAC40. Circuitry within the slave circuit provides equalization to the
sample of received cross polarization signal and applies it to the Master Demodulator.

Figure A3 below shows the improvement in XPD (x-pole discrimination) with and
without the XPIC function provided by the RAC40. XPIC will allow a 20 dB worse
interference level for the same performance (signal to noise ration, SNR), compared to
the same system without XPIC. Figure A3 shows an improvement of 20 dB for the
interferer only 10 dB below the wanted signal and for a constant SNR at the 10-6 BER
level.

XPIC Disabled
XPIC Enabled
34.0
33.0
32.0
Required SNR for 10 BER

31.0
-6

30.0
29.0
28.0
27.0
26.0 20 dB improvement
25.0
24.0
23.0
0 10 20 30 40
Wanted Signal to X-Pole Interference, dB (XPD)

Figure A3 XPD Improvement with XPIC

In case of failure (fading or loss of the signal or hardware failure) or maintenance


(removal of a RAC40 or ODU) of one traffic path (for example on the horizontal
polarization), normal error-free performance cross-pole traffic path (ie: on the vertical
polarization) will be maintained.

Figures A4 to A8 below display various terminal and repeater configurations using the
RAC40 and XPIC.

Page 16 of 22 Eclipse Quattro Product Overview


4x 64xE1/84xDS1 (4+0) Terminal with XPIC
With 4xSTM1/OC3 Network Interface
Each INU equipped with 1xRAC40, 1xDAC 155oM & NPC

CH1V
V

CH2V
CH1H
cable connections
Inter-RAC40 XPIC

CH2H
4xSTM1/OC3
Network Interface

Figure A4. Eclipse Quattro 256xE1/336xDS1 Terminal with XPIC,


4xSTM1/OC3 network interface

4x 64xE1/84xDS1 (4+0) Terminal with XPIC


Each INU equipped with 1xRAC40, 4xDAC 16x & NPC
CH1V

V
CH2V
CH1H

H
CH2H

4x 64xE1/84xDS1 Network Interface

Figure A5. Eclipse Quattro 256xE1/336xDS1 Terminal with XPIC,


4x64xE1/4x84xDS1 network interface

Rev 2, November 2004 Page 17 of 22


4x 64xE1/84xDS1 (4+0) Repeater with Add/Drop
Each INU equipped with 2xRAC30, 1xDAC 16x & NPC

CH3V

CH1V
V V

CH4V

CH2V
CH3H

CH1H
H H

CH2H
CH4H

4x16xE1/DS1 Add and Drop

Figure A6. Eclipse Quattro 256xE1/336xDS1 Repeater with XPIC,


4x16xE1/DS1 add & drop interface

4x 64xE1/84xDS1 (4+4) Terminal with Space Diversity and XPIC


Each INU equipped with 2xRAC40, 1xDAC 155oM & NPC
CH1AV

V
CH2AV

Main
Antenna
CH1AH

H
CH2AH
CH1BV

V
CH2BV

Diversity
Antenna
CH1BH

4xSTM1/OC3 H
CH2BH

Network Interface

Figure A7. Eclipse Quattro 256xE1/336xDS1 Space Diversity Terminal with XPIC,
4xSTM1/OC3 network interface

Page 18 of 22 Eclipse Quattro Product Overview


4x 64xE1/84xDS1 (4+4) Repeater with Space Diversity and XPIC
Each INUe equipped with 4xRAC40, 1xDAC 16x or 2xDAC 1x155o, & NPC

CH1AV
CH3AV
V V

CH2AV
CH4AV

CH1AH
CH3AH
H H

CH2AH
Main

CH4AH
Main Antenna
Antenna

CH1BV
CH3BV

V V

CH2BV
CH4BV

CH1BH
CH3BH

CH2BH
H
CH4BH

Diversity
Diversity 4xSTM1/OC3 Antenna
Antenna or 4x16xE1/DS1
Add & Drop

Figure A8. Eclipse Quattro 256xE1/336xDS1 Space Diversity Repeater with XPIC,
4xSTM1/OC3 network interface

Rev 2, November 2004 Page 19 of 22


Appendix B: Channel Arrangements
Two-Channel Arrangements
The standard Eclipse platform with the RAC10 or RAC30 supports adjacent channel
alternate polarization (ACAP) under normal operation (see Figure B1 below).
Additionally, the RAC30 supports adjacent channel operation on the same polarization
(ACAP, or ETSI Class 5b operation).

With the RAC40 Eclipse Quattro will support CCDP operation with a minimum 28MHz
(27.5MHz at 18GHz) T-T separation between adjacent channels on the same
polarization, as shown below.
28MHz

V V V

H H H
28MHz
Adjacent Channel
Co-Channel
Alternate Polarization Adjacent Channel
Dual Polarization
(ACAP) Co Polarization
(CCDP)
(ACCP)

Figure B1. 2-Channel Arrangements

Four-Channel Arrangements
Compared to standard alternating channel arrangements, which would require a total
of 112 MHz of bandwidth to transmit 4 channels of STM-1 data, Eclipse Quattro is able
to compress the same amount of traffic into just 56 MHz of total bandwidth using
adjacent co-polar and co-channel dual polarization arrangements, as shown in Figure
B2.
28MHz

V V

H H
56MHz 28MHz

Standard 4x STM1 Eclipse Quattro 4x 64E1/STM1


With Adjacent Channel With Co-Channel
Alternate Polarization (ACAP) Dual Polarization (CCDP)

Figure B2. 4-Channel Arrangements

Page 20 of 22 Eclipse Quattro Product Overview


Abbreviations
ACAP Adjacent Channel Alternate Polarization
ACCP Adjacent Channel Co-Polarization
AGC Automatic Gain Control
ANSI American National Standards Institute
ATPC Automatic Transmit Power Control
AUX Auxiliary and Alarm I/O Card
BER Bit Error Rate
CCDP Co-Channel Dual Polar
DAC Data Access Card
DC Direct Current
ETSI European Telecommunications Standards Institute
IDC Indoor Chassis
IDCe Extended Indoor Chassis
IDU Indoor Unit
IEEE Institute of Electrical and Electronic Engineers
IF Intermediate Frequency
INU Intelligent Node Unit
INUe Extended Intelligent Node Unit
NCC Node Controller Card
NPC Node Protection Card
ODU Outdoor Unit
PDH Plesiochronous Digital Hierarchy
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Key Modulation
RAC Radio Access Card
RF Radio Frequency
RU Rack Unit
Rx Receive
SDH Synchronous Digital Hierarchy
SONET Synchronous Optical Network
STM-N Synchronous Transport Module, level N
TDM Time Division Multiplexing
Tx Transmit
UPSR Unidirectional Path Switched Ring
XPIC Cross-Polar Interference Cancellation

Rev 2, November 2004 Page 21 of 22


Further Information
For more information on Eclipse Quattro please contact your local sales representative
at the following office locations, visit us on the web at www.stratexnet.com, or email us
at eclipse@stratexnet.com.

America Europe
Corporate Headquarters Stratex Networks
Stratex Networks Regus
120 Rose Orchard Way Central Boulevard
San Jose, CA 95134 Blythe Valley Business Park
United States of America Solihull West Midlands, B908AG
United Kingdom
Corporate: +1.408.943.0777
North America: +1.408.944.3513 Phone: +44.1564.711084
Latin America: +1.408.944.1715 Facsimile: +44.1564.711335
Facsimile: +1.408.944.1648/9

Middle East and Africa Asia Pacific


Stratex Networks Stratex Networks Pte Ltd
Sheikh Zayed Road 51 Changi Business Park Central 2
API World Tower Suite 302 (a) #09-10 The Signature
P.O. Box 32423 Singapore 486066
Dubai
United Arab Emirates Phone: 65-6787 1031
Fax: 65-6787 5934
Phone: +9714.332.5600
Facsimile: +9714.332.5700

© 2004 Stratex Networks. All rights reserved. Eclipse, Eclipse Quattro, Super-PDH, Concentric Rings, Portal and ProVision are
trademarks and/or marks of Stratex Networks, Inc. Eclipse ©2004; ProVision ©1998 - 2004. Product specifications are subject to
change anytime and without notice. The product details and features described herein are supplied for information purposes only,
and in no way imply or guarantee availability. Details of product features and functionality are subject to change without notice. This
material is provided for information purposes only. November 2004.

Please check with your local Stratex Networks sales representative or agent for current details of product availability and features.

Page 22 of 22 Eclipse Quattro Product Overview

You might also like