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Products & Services

Xtera® is an innovative provider of subsea and telecoms technology.  The company supplies both unrepeatered and repeatered systems, using its high performance optical amplifiers to deliver traffic directly inland to cities and offering flexibility in working with selected partners to provide the optimum technical and commercial package.

Xtera consistently challenges industry norms and creates novel solutions that are suited to each individual customer whether that be for the provision of a system, an open architecture design or individual network elements. We are a flexible supplier who works with a variety of partners to create the best solution for each project with a proven track record of delivery. Contact Xtera today at [email protected] to see how we can help you to build exceptional systems. Download our corporate brochure and product data sheets below:

Brochure Download

Xtera Products

Repeater
Branching Unit
Network Management System
Open Systems
Terminal Equipment
Unrepeatered Systems
Line Monitoring Equipment
Repeater
Xtera’s advanced submarine repeater unit has been designed with reliability and performance foremost, allowing us to deliver a highly optimised and robust transmission system. Our hybrid repeater uses Raman technology to reduce line noise, which allows us to offer long-span, high-bandwidth systems. The repeater features a light-weight and compact titanium design that can be plough-buried. Simple and rapid monitoring of repeater optical levels, pump health, internal temperature etc., is provided via the Line Monitoring Equipment.

Xtera’s repeaters also have an in-built accelerometer that allows us to monitor repeater handling during marine operations, and the system owner to track any unexpected movement after installation.

Key repeater features are:

  • C and C+L band variants with optical bandwidth up to 70nm
  • Depth capability qualified to 8,000m
  • 2,4,6 fibre pair variants
  • High reliability design, with redundancy in pumps and controllers
  • Per amplifier tilt control, removing the need for separate tilt equalisers.
  • Active supervisory & C-OTDR compatibility
Branching Unit
Branching Unit XteraXtera’s branching unit leverages many of the advanced mechanical features of the repeater. The current release supports fibre routing and fixed OADM. The branching unit power switching is controlled via the supervisory, which has the following advantages:

  • Simpler to configure than current-steering
  • More stable; only changes state when a command is sent
  • Can be locked for safety
  • Can be powered up from a single leg
  • Can isolate a leg for insulation testing

The branching unit has been designed to allow hot switching without damage. Maximum deployment depth, using standard Light Weight cable, is >5,000m.

Network Management System

Xtera’s NMS manages the wet-plant, Nu-wave™ Optima and PFE, automatically logging alarms, events and performance data and allowing an operator to monitor and control these units. Users login via a secure password system and their access is controlled by a profile set by the System Administrator.

The system can limit users to access only certain equipment, or give the ability to monitor, but not control/change system parameters. The NMS is a Client-Server architecture, based on a LINUX/ SUN server and PCs as clients. The NMS manages the equipment in several sites
and supports multiple clients.

Open Systems

Xtera has a number of products designed to support Open systems, facilitating separate supply of terminal, power feeding and wet plant equipment.

Our Open system family provides active supervisory of the submerged plant and allows monitoring of the PFE via the NMS. In the Open System Gateway (OSG) fibre pairs are independently controlled and isolated from each other.

Additionally, units may be fitted to allow the bandwidth of a fibre to be shared, effectively creating virtual fibre pairs with users completely isolated from each other. High reliability amplifiers control power levels and loading modules fill unused bandwidth, avoiding the problems that would occur if a terminal were to fail or be disconnected. The OSG is fully managed by the NMS.

Terminal Equipment
Xtera’s Nu-wave™ Optima platform provides a common, modular platform that can serve terrestrial, unrepeatered and ultra-long span submarine applications. The Optima employs the latest technology, including QPSK, 8QAM and 16QAM transmission with coherent detection and soft-decision FEC (SD-FEC). The Optima offers high equipment density, low power consumption and a responsive, easy-to-use Management System that manages all Xtera products.

Key features are:

  • Extended reach through Raman amplification
  • Common, integrated set of plug-and-play modules
  • Fully tuneable line units over the entire bandwidth
  • High power Raman and ROPA for industry-leading spans without repeaters
  • End-to-end unified network management system
  • A range of simple and cost-effective protection schemes
  • Repeater LME supervisory
  • Data Communications facilities
  • Reconfigurable Optical Add Drop Multiplexer (ROADM)
Unrepeatered Systems

Xtera is the industry leader in unrepeatered applications, experienced in both equipping existing links and complete build systems. Xtera uses combinations of forward and backwards Raman pumping and ROPAs for maximum unrepeatered reach. The Nu-waveTM Optima has demonstrated 100Gbit/s transmission over a 627 km fibre span.

Line Monitoring Equipment

The Nu-Wave LME provides a complete solution for submerged plant implementing either ‘active’ or ‘passive’ monitoring. The LME-A (LME-Active) provides the ability to interrogate Xtera submerged plant, both repeaters and BU, together with legacy submerged plant available from other Suppliers. The LME-P (LME-Passive) provides the means for monitoring submerged plant from other suppliers who implement only a ‘passive’ plant monitoring scheme. The LME is accessible from the Nu-Wave NMS.

The LME-A allows the monitoring and control of submerged plant based upon low-frequency optical signaling to the submerged plant. The modulation schemes implemented handled both Xtera submerged plant – which is binary PSK-based, and competitor submerged plant – which varies between OOK and binary PSK, which depends upon the system in question. All submerged plant is provided with a unique address, during manufacture, which allows each repeater/BU to be interrogated or controlled on an individual basis, using a command and response protocol.

The LME-P allows the monitoring of submerged plant which provides no active means of interrogation or control, only passive optical loopback of transmitted signals. The loopbacks with the submerged plant are implemented as High-Loss LoopBacks (HLLB) which feeds back a portion of the ‘transmit’ signal onto the received signal within a fiber-pair.

Xtera Datasheets

Repeater
Branching Unit
Network Management System
Flexible Gateway Family
Terminal Equipment
Unrepeatered Systems
Line Monitoring Equipment
Repeater
Download PDF

This document provides outline details of Xtera’s Submarine Repeater. Please note that repeaters provided for specific applications may have different parameter values / may be configured differently and that this description does not represent a contractual commitment in any way.

Branching Unit
Download PDF

This document provides outline details of Xtera’s Branching Unit (BU). Please note that BUs provided for specific applications may have different parameter values / may be configured differently and that this description does not represent a contractual commitment in any way.

Network Management System
Download PDF

This document provides high level details of Xtera’s Nu-Wave Network Management System (NMS). Please note that changes in future releases may impact features and capabilities described below and that this description does not represent a contractual commitment in any way.

Flexible Gateway Family
Download PDF

This document provides outline details of Xtera’s Branching Unit (BU). Please note that BUs provided for specific applications may have different parameter values / may be configured differently and that this description does not represent a contractual commitment in any way.

Terminal Equipment
Download PDF

This document provides outline details of Xtera’s Nu-Wave OptimaTM Platform. Please note that equipment provided for specific applications may have different parameter values / may be configured differently and that this description does not represent a contractual commitment in any way.

Unrepeatered Systems
Download PDF

This document provides outline details of Xtera’s Unrepeatered System solutions. Please note that this description does not represent a contractual commitment in any way.

Line Monitoring Equipment
Download PDF

This document provides high-level details of Xtera’s Nu-Wave Line Monitoring Equipment (LME). Please note that changes in future releases may impact features and capabilities described below and that this description does not represent a contractual commitment in any way.

Xtera’s core team is made up of industry experts each with 20 to 30 years’ experience in the design and installation of submarine cable systems. The systems design team includes specialists in the simulation of undersea optical systems who have developed highly specialized modelling tools and a dedicated optical test-bed, allowing us to optimize transmission solutions to individual networks. Xtera has deployed its optical networking solutions in over sixty countries across five continents.

Services

A full range of services are included in Xtera’s turnkey portfolio, including:

  • System Design
  • Project Planning & Feasibility Studies
  • On-shore & Off-shore Security during Installation
  • Desktop Study
  • Route Survey & Cable Engineering
  • In-House Permitting Service
  • Route Clearance
  • Shore End & Installation Operations
  • Post Lay Inspection & Burial
  • Landing Route & Station Development
  • Testing and Commissioning
  • Training
  • Maintenance & Operational Support

Xtera Services & Support

Training
Aftersales Support
Training

Xtera offers comprehensive training courses that prepare the customer to operate and maintain their system. Training courses are adjusted to suit individual customer requirements.

Aftersales Support

XteraCare™ and On-Call Premier are two support packages available for all the products that Xtera supplies for a project, including those products sourced from other suppliers. The types of services offered include:

  • 24-hour access to technical assistance
  • Second-line support from Xtera engineers
  • Repair or replacement
  • Software upgrades
  • Value-added professional services

Partner Products & Services

Xtera sources best-in-class products and services, for example Power Feeding Equipment from Spellman, which has a long-established supply record. Cable comes from a range of established worldwide suppliers, predominantly Nexans. Marine services are performed by partners of Xtera with extensive experience of submarine cable survey and installation. Xtera has successfully worked previously with a range of partners, including IT Telecom, Global Marine Systems Limited (GMSL) and Orange Marine.

Construction launch of submarine fibre cable between Norway and UK

“We are proud that the NO-UK consortium has selected our proven technology and collaborative project management approach for this full turnkey system. We will be working closely with all stakeholders, including the permitting authorities, to deliver this critical infrastructure project on time and on budget”.
Keith HendersonChief Executive Officer, Xtera

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