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Vendors of OLT equipment include Adtran, which provides OLT solutions spanning dense urban, sub-urban and rural market use cases. Each OLT variant delivers distinct and differentiated value for each specific fibre access network operator segment. Products include integrated OLTs, disaggregated OLTs and remote OLTs. Broadcom’s PON portolio is designed to


play a key role in advancing the technology. Te company offers an end-to-end solution that includes OLT MACs, ONUs and integrated home gateways. Support is available for multiple PON protocols on a single silicon architecture, delivering soſtware development leverage to system vendors. Solutions below include products optimised to deliver the industry’s latest requirements, including XGS-PON and NGPON2 standards. Calix’s Intelligent Access Edge suite of


products, powered by the Axos platorm, is designed to aid 10G PON deployments. Products include the GigaPoint ONT and AXOS E7-2 intelligent modular system line cards. Te E7-2 XG801 XGS-PON/GPON line card enables 100G deployments in temperature-hardened environments, with two 100G transport uplinks over IP/Ethernet-based networks. It provides eight XGS-PON/GPON OLT ports and four additional 10GE SFP+ sockets for point-to-point Ethernet connections or 10G transport. Te Catalyst PON Series from Cisco offers


various OLT and ONT options for different deployment needs. Catalyst PON Series switches offer a competitive fibre-based network solution. CGP-OLT products are compact and high-density network aggregation devices, meeting the requirements of ITU-T G.984 and relative GPON standards, with high access capacity, reliability and powerful security function. DZS’s Velocity Broadband Connectivity


solutions range is designed to accelerate and simplify the network-wide deployment of future-proof, next-generation multi-gigabit services over fibre. Te solutions are designed to be used with any topology, service, network location and physical media. OLTs are complemented by a line of fibre-fed g.fast DPUs to support the delivery of multigigabit services to those subscribers for which copper is still the only practically viable access network physical media. Huawei provides a range of passive, all-


optical network access solutions, including the OptiXaccess EA5801E-GP16 – a box-shaped OLT with GPON access, supporting both passive optical LAN (POL) and FTTH solutions. It carries all services over a single fibre network.


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Also available is the SmartAX EA5800 – a full- service distributed OLT that provides GPON, XG-PON, XGS-PON, GE and 10 GE access and supports multiple network solutions, including FTTO, FTTM and FTTH. Te SI3000 Lumia is Iskratel’s flagship


broadband-access platorm. Within this, the compact SI3000 Lumia GPON, XGS-PON and Combo PON OLTs are designed for low-density deployments and serve all types of users, deployment scenarios and business models. Te dual nature of these OLTs is designed to help facilitate cost-effective virtualisation, while the low energy consumption per port helps operators implement their sustainability strategies. Nokia has a number of OLT solutions


within its Lightspan family of products that are specifically designed for SDAN use cases, which bring data centre practises to the central office and introduce cloud and operational agility to the copper/fibre outside plant. Te latest addition, available with the Quillion chipset, is the Lightspan DF-16GM. It can simultaneously provide services from 1 to 25Gb/s and incorporates GPON, XGS-PON and 25G PON. Available from Optokon is a series of GPON


OLTs. Designed to be particularly suited to small village or apartment applications, the OLTs have up to 8 PON ports, 1U case and hot-swappable redundant power units. Remote management is provided via simple network management protocol and command line interface. Te Radisys series of OLTs support Combo


PON, G-PON and XGS-PON with soſtware based on VOLTHA/SEBA reference architecture. Open APIs that use standard interfaces for all management functions will help ease the transition to an SDN-controlled environment. Te OLTs leverage virtual hardware abstraction for greater agility, programmability, increased automation, faster product innovation cycles and deeper network visibility. ZTE’s Light PON solution enables flexible,


economical and efficient FTTx network construction. It is designed as an end-to-end solution for FTTx network construction and includes a series of small-capacity OLTs, Combo PON, outdoor cabinets, pre-connectorised ODN and intelligent OAM.n


Tis is not an exhaustive list. If you provide OLT solutions and would like your company to be included, please let us know.


Issue 35 n SPRING 2022 n FiBRE SYSTEMS 25


ADTRAN: FEATURED PRODUCT


Te Adtran SDX 6000 Series of soſtware- defined access (SD-Access) OLTs consists of open, disaggregated access devices that support the broad range of PON standards, including GPON, XGS-PON, 10G-EPON and Combo PON. Tese devices are built using modern design principles and apply lessons learnt from data centre networks. For scalability, the OLTs are built around


a ‘build-as-you-grow’ architecture. Service providers simply add GPON/10G-PON OLTs as needed without the upfront investment or the system constraints of a traditional chassis system. Tis evolution enables operators


to vastly lower their costs to build, operate, innovate and grow their networks. Te SDX 6000 Series is complemented


by the Adtran Mosaic Cloud Platorm that offers a modern management system with full FCAPS functionality, an intuitive GUI for device configuration and service activation. Open, standards-based northbound APIs simplify integration into existing IT/OSS systems, enabling automation of network and service management, and ease migration to SDN-based orchestration and management system. Find out more: htps://www.adtran.com/ index.php/sdx-series


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