Integrated GNSS Grandmaster (IGM) 1100x

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IEEE 1588 PTP GNSS IGM Grandmaster Synchronization

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IEEE 1588 PTP GNSS IGM Grandmaster Synchronization

The IGM 1100x is perfect for scenarios where the needed GNSS antenna already exists at the desired location, or where the GNSS cabling would be short enough for low cost and easy installation, then a cost-effective solution is to deliver precise time and phase with a low-cost 1588 PTP grandmaster connected to an external GNSS antenna.

While time synchronization has always been essential for wireless networks to function, requirements have evolved dramatically as operators increase small cell use and optimize spectrum usage to enable 4.5G, 4.9G and 5G network capabilities. Accurate phase synchronization is now increasingly critical to support new features and services in these networks. For example, coordination between base stations for broadcast video delivery and interference mitigation between macro base stations and small cells in dense deployments drive the need for strict phase specifications.

With technology innovations engineered to address these challenges, Microsemi offers a portfolio of small form factor IEEE 1588 PTP grandmasters to deliver a cost-effective, precise timing master exactly where it’s needed, such as small cells and backhaul to eNodeBs for wireless service delivery at the LTE network edge. Microsemi’s IGM 1588 grandmasters integrate both GNSS antenna and GNSS receiver, eliminating the need for an outdoor antenna and cabling.

The IGM’s latest release 3.0 software and new hardware model (IGM Plus) enables deployment of these smaller grandmasters at the very edge of mobile networks, lowering operator costs and improving customer experience with enhanced coverage and performance. Easily installed indoors or outdoors, in-building or in cabinets or huts, the IGM grandmaster family serves operators preparing for 5G through densification, along with enterprises seeking enhanced indoor capacity and coverage on LTE and LTE-Advanced (LTE-A) networks.

New Hardware Model: IGM Plus for Release 3.0

Release 3.0 features a new hardware model with an upgraded GNSS receiver adding Galileo support and an upgraded mini OCXO oscillator for enhanced time keeping and holdover performance.

New Software Capabilities for Release 3.0

Increased scalability up to 60 PTP clients on IGM Outdoor and IGM External Antenna
Support for IPv6 OAM/Management, in addition to IPv6 support for PTP traffic
Automated configuration of a large number of devices with Zero Touch Provisioning (ZTP) through DHCP (option 43)
Enhanced support for individual device configuration with full CLI

Why Choose Microsemi IGM Grandmasters?

Single device integrating IEEE 1588 PTP grandmaster, GNSS receiver and GNSS antenna
Reduced installation costs and simplified cabling
Unique indoor capabilities for enhanced indoor GNSS performance without GPS/GNSS roof antenna
Plug-and-Play features reducing deployment time and cost (discovery, configuration, Zero Touch Provisioning (ZTP) for auto-configuration)
Deployment flexibility (small size, wall or ceiling mount, indoor or outdoor)
Best-in-class synchronization solution optimized for indoor, location transfer, management
GPS,GLONASS, Beidou, Galileo, QZSS, and SBAS support

The IGM 1100x has a high-performance mini OCXO oscillator with aging and temp compensation. Bridge Mode available for clock class & accuracy. Provides PTP with APTS as a backup.
Powered Over Ethernet
The IGM 1100x simplifies and reduces installation costs using Microchip’s widest portfolio of PoE solutions from the inventors of PoE, making the solution plug-and-play.
Integrated Solution
The unit supports a wide temperature range. Perfect for challenging indoor scenarios to simplify the outdoor installation and reduce the space occupancy of the GPS receiver.
Extension of BestTime
The equipment supports longer sampling windows over time, mitigating the timing error in difficult indoor environments. Best in Class performance with enhanced GNSS processing (patented).
  • Increased capacity to 60 PTP clients
  • Increased scalability to 32 clients when using PTP input and APTS
  • Group configuration with Zero Touch Provisioning through DHCP
  • Individual device configuration and management through full CLI support
  • Small form factor with single 1 GbE RJ45 port
  • PTP profiles: ITU-T G.8265.1, ITU-T G.8275.1 (L2 multicast), ITU-T G.8275.2 (L3 unicast), Telecom 2008, and Ethernet default
  • One-step and two-step clock
  • SyncE input, output
  • PTP input for GNSS back-up
  • APTS and asymmetry compensation
  • IPv4 and IPv6 including PTP traffic and -OAM
  • Cable compensation
  • 802.1Q VLANs
  • GNSS receiver
  • GPS, Glonass (Global Orbiting Navigation Satellite System; Russia), Beidou-ready, SBAS; IGM Plus model : Galileo and QZSS
  • Time to First Fix (TTFF) of ten minutes to less than one hour until system lock
  • SC-cut oscillator for enhanced time keeping holdover.
  • Leverages existing GNSS antennas when available that meet the requirements of the unit (see Specifications)

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