M64: Managed Timing Engine Module Ordinary Clock





M64 Ordinary Clock Module

High capacity mobile networks and other emerging applications such as smart grid, wireless sensor networks, Internet of Things etc. require precise time and frequency synchronization. These requirements are getting stricter, especially in the next generation 4G LTE infrastructure. Qulsar’s Managed Timing Engine (MTE) Module is a full packet network based synchronization engine, which is custom designed for such "end-point" applications.

A key innovation is that the M64 can be integrated into an existing communication path. This, along with its standard interfaces, low latency, fully-transparent data communications at gigabit speed, makes integration into a host system simple. It operates at low power and is a cost-optimal solution. The M64 series uses industry leading algorithms to extract and deliver highly accurate synchronization performance.

The M64 is an ordinary clock and can run as a master or slave:

The M64 is capable of synchronizing 8 slaves at 16 packets per second or 4 slaves at 32 packets per second.

Design & Integration

The M64 series provides a simple and cost effective option to integrate precision timing by replacing standard generic parts in host systems. The M64 series can also replace the PHY in the host system, supporting line-rate traffic.

For rapid "turnkey" integration, the M64 should be prepackaged in a subsystem (such as a P64 board or a Local Master (Qg 2) sub-system) that can be quickly used as a synchronization "system", enabling a rapid design cycle while allowing for deeper integration at a later time. The first step towards integration is the purchase of an Evaluation & Developer’s Kit that includes all the interface details, licenses and tools necessary for enabling the design effort.

This module is designed for light-weight end applications such as small cells (and femtocells), Carrier Ethernet based mobile backhaul networks, sensor networks; and Intelligent Electronic Devices (IEDs) in smart grid power utility networks.

Pass-Through Technology

One of the innovative features of the M64 series is that it can be integrated into an existing communication path. It features a low latency, fully transparent data communication channel at gigabit speed. It also allows for daisy chaining architectures of host systems.

Multi-sync & Algorithms

The M64 series has industry leading algorithms that enable it to extract precise time signals from packets impeded over the network by traffic load, congestion and packet delay variation (PDV). In addition, the M64 series supports SyncE for frequency recovery unaffected by network PDV. The ability to use multiple synchronization inputs is particularly powerful in today’s applications, where a host system may need to be versatile and deployable in multiple environments.

System Features

  • IEEE 1588-2008 PTP master or slave clock
  • Fully compliant to telecom, power and default profiles
  • Multi-sync handling support
  • Frequency accuracy better than 1ppb under ITU-T G.8261 test conditions 1
  • Phase accuracy better than ±1μs accuracy under G.8261 testing conditions 1
  • Enhanced synchronization and network performance metrics

Network Interface

  • Upstream 1GbE magnetics
  • Downstream 1 RGMII port
  • Wirespeed low latency pass-through
  • Integrated TCP/IP stack
  • IPv4 and IPv6 (PTP)

1 ITU-T G.8261 tests conducted at both Qulsar internal labs and 3rd party labs – details available on request and under NDA

Technical Specifications

  • Wire speed 1GbE pass-through
PTP Master
  • Accuracy with GPS as reference better than ±25ns
  • Support 8/32/64/128+ slaves
  • Support 1 step and 2 step
  • Output Sync rate: up to 128 sync packet per second (individually programmable per slave)
PTP Slave
  • Time alignment, better than ±1 μs on a managed 10-switch GbE network under G.8261 test conditions 2
  • Frequency alignment, better than ±10 ppb on a managed switch GbE network under G.8261 test conditions 2
  • Supports 1-step and 2-step
  • Input sync rate: up to 128 sync packets per second
Other Features
  • DHCP client
  • FTP server
  • TELNET server
  • SSH server
  • Serial terminal
  • Remote firmware upgrade
  • Command line interface configuration (Telnet, SSH or serial port terminal)
Input Synchronization Interfaces
  • PTP: Ethernet (L2) or UDP IPv4/IPv6 (L3)
  • 1PPS
  • ToD in: TTL, 4800/9600 bps, via dedicated pin port up to 115200 bps via serial port
  • Output Synchronization Interfaces ToD Format (output) Other Interfaces Ordering Information

    2 With industry standard PDV profiles of switches and network conditions.

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    QULSAR_M6x Series MTE Product Brief

    Qulsar may make changes to specifications and product descriptions at any time, without notice.

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