OSA 5420 Series PTP Grandmaster Clocks

Compact PTP grandmaster, multi-interfaces

PTP grandmaster, NTP server, GNSS receiver

The OSA 5420 Series is a family of advanced grandmaster clock synchronization devices engineered for excellent performance even in the most extreme conditions. With this solution, you can ensure frequency and phase synchronicity throughout your network. In addition, the OSA 5420 delivers superior holdover performance on the market despite its compact footprint.

In June 2023, ADVA Optical Networking SE has officially changed its name to Adtran Networks SE. The products of ADVA will continue to be available from CoverTel as usual. Logo change of products from ADVA to Adtran will be done progressively.
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OSA 5420 Series

In terms of agility, OSA 5420 Series is the most powerful synchronization toolkit in the industry. The OSA 5422 offers a wide range of features that can be enhanced with its recently upgraded feature set, including sync delivery over IPv6, high bandwidth 10Gbit/s interfaces, support for ITU-T G.8275.2, multi-band receivers with high accuracy and modularity to service a variety of application requirements. With this enhancement to the technologies used in this device, it is now possible to use them across a wider range of industries to provide robust, secure, packet-based and NTP synchronization systems that are based on IEEE 1588. In terms of helping operators and enterprise organisations maximize their deployed infrastructure, there is no technology that offers more. Using the OSA 5420 Series, they are able to meet more stringent timing requirements at a reduced cost and in a more efficient manner with greater operational efficiency.

Key Features and Benefits

  • Leading edge GNSS receiverEnables PRTC/PRC and grandmaster clock functionality for frequency, phase and time-of-day delivery using multiple constellations
  • Unique flexibilityConfigurable to operate in PTP grandmaster clock, assisted partial timing support (APTS), boundary clock and slave clock mode as well as NTP server and SSU/TSG
  • Extended holdover performanceHigh-end quartz and rubidium oscillator options
  • High-availability designAutomatic clock selection, self-calibrating delay asymmetry compensation, power supply redundancy and DoS protection
  • Syncjack™ technologyBuilt-in synchronization accuracy monitoring, testing and assurance functionality
  • Operational simplicityEnsemble Controller, including Ensemble Sync Director, for superior management and synchronization monitoring capabilities



Applications in your network
Radio access network synchronization and time-as-a-service applications with the highest availability

  • Timing distribution at the edge of mobile backhaul and fronthaul networks
  • Cable networks (DOCSIS 3.1) synchronization
  • Synchronization delivery within buildings for indoor small cell radio base stations
  • Synchronization of legacy network architectures based on NTP and SSU
  • Time as a service into data center, financial, health and media networks
  • Modernized and legacy power utility networks
  • Modernized digital broadcasting studios