Qg 2i: Integrated high precision PTP Grandmaster / boundary clock

Qg 2 carrier grade PTP grandmaster & Multisync Gateway


The Qg 2i is a turnkey precision time sync platform designed for integration (based on the industry-leading Qg 2):
  • 5G, ORAN, small cell clusters, C-RAN & neutral host equipment
  • Perfectly suited for any 5G S-plane configurations (LLS_C1 - LLS_C4) & different functional splits of RU/DU/CU in the RAN & edge evolution
  • Smart grid transmission & distribution substation networking equipment
  • Mobile edge computing & enterprise
  • Industrial IoT & factory automation applications
  • Datacenters & financial applications


  • Designed for rapid, scalable and easy integration
  • Adaptable board design
  • License-able hardware design
  • Highly scalable slave capacity
  • Low power consumption
  • High performance PTP clock
  • Configurable, operates in multiple modes: PTP Grand Master, boundary & gateway clocks
  • Receives, uses and displays both time and location information from multiple GNSS constellations

NEW:  Qg 2i now includes full QZSS support for both time and location information

As 5G evolves from non standalone (NSA) supporting 4G today, to a standalone (SA) architecture with 5G NR, the support for massive MIMO radios, network slicing, low latency and tight synchronization are critical considerations. In order to meet phase and frequency requirements for applications in the 5G service based architecture, deploying more GMs (PRTC) in RAN and at the edge is the optimal solution that helps in future proofing the deployment and associated investment.  The low cost, small footprint Qg2i can be used for a full turnkey PTP clock implementation in multiple network elements.

With virtualization and decomposition of 4G/5G base stations, the newly designed data-centers and CORDs (Central Office Re-architected as Data Centers) require a very high capacity, easily scalable PTP master (T-GM, T-BC) in providing synchronization to hundreds of PTP slave devices. Qg2i is a rapid, simple way to integrate an industry leading technology to meet these challenges.

Next generation networks require this decentralized approach. The Assisted Partial Timing Support (APTS) architecture is designed for these networks and deliver precise phase and frequency to small cells in a scalable and cost-effective manner. Qg 2i is highly field-scalable solution and designed for such edge distributed architectures.

Product Summary

Qg 2i provides IEEE 1588-2008 (PTP) Grand Master and Boundary Clock functionality at low total cost of ownership, and comes with customization and integration services.  It leverages Qulsar’s unique industry-leading PTP algorithms to deliver stringent timing for LTE-A, LTE-TDD, CBRS (USA), SxGP (Japan), private LTE and  5G architectures (both operator and private) and supports ITU-T G.8265 and G.8275 frequency and phase profiles. The product features multiple oscillator options to deliver a range of holdover performance.

The true innovation in this product lies in its "system-level" functionality, cost effectiveness and rapid integration in a fast moving market.

Recommended Process

Refer to the Datasheet for Technical Specifications.


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Qg2i Integrated High Precision Clock Datasheet

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