Our Applications & Solutions

PTP GrandMaster Clock, 32 Clients

Part Number:
IGM-1100i v2



Precise synchronization of indoor small cells requires a GPS timing source, especially for phase applications. Installing a GPS antenna on the roof of the building or enabling each small cell with GPS is complicated and expensive. The revolutionary Microsemi Integrated GNSS Master (IGM) solves this problem by bringing precise GNSS-based time to indoor small cell deployments. The IGM integrates a PTP grandmaster with a GNSS receiver and antenna in a small, fully-contained package designed to be mounted to an inside wall or ceiling.
The Microsemi IGM does not use an external antenna, significantly reducing the expenses related to purchasing, installing, and maintaining the external GNSS cable systems required for typical GNSS timing receivers. Furthermore, the IGM uses Power over Ethernet (PoE) to further simplify the installation. The unit will automatically self-configure using TR-069, lock to GNSS signals, and begin PTP grandmaster operations when it is mounted on a wall or ceiling (preferably near a window). On-premise user configuration is not required.


  • 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
  • Up to 32 clients
  • License control
  • 802.1Q VLANs
  • GNSS receiver with assisted GNSS support
  • GPS, Glonass, Beidou, SBAS, and Galileo-ready
  • Time to First Fix (TTFF) of ten minutes to less than one hour until system lock
  • Reduced installation costs and simplified cabling
  • Enhanced indoor GNSS performance
  • Receives GNSS signals when deployed indoors and/or in deep urban canyons
  • Plug and play features reduce deployment time and cost
  • Best-in-class sync solution
  • Reliability (no external environmental challenges)
  • Deployment flexibility (small size, wall or ceiling-mount, and indoor)

Product Files

Our Solutions

System Solutions

To grow your business – and your revenue – operators want the Knowledge, Assets and impartial technical guidance only a true Partner can deliver! From HFC and DOCSIS to x-PHYTM; from FTTx – GPON and RFoG to IPTV; from Linear Video to Multi-Screen; MHz best-in-class Technologies and Client Services will meet your goals while exceeding your expectations…

Read More

Client Services

Too much on your plate?
Not enough hours in your day?

The next time you need, Linear Video or Multi-Screen, MPEG, DOCSIS or x-PHYTM, IP or RF resources to support the operation of Multi-Vendor, Multi-Technology products deployed in your HFC or FTTx network, MHz can help!

Choose from a customized package of remote “Fractional Engineering” hours you can use over an extended period of time; or our on-site Integration and Activation Services.

Both can offset your temporary work-load.

Read More