GPS Master Clock: Netclock Public Safety Master Clock


Safran Netclock 9483

The latest generation of the NENA-compliant NetClock Master Clock / Time Server offers a modular design for greater versatility, multi-network port card for separate, isolated networks, and optional PTP master/slave card.

The Choice GPS Master Clock for Public Safety Timing

The Model 9483 NENA-compliant GPS master clock continues Spectracom’s legacy of bringing essential time synchronization to public safety answering points (PSAPs) and other emergency and command and control systems.

More than 4,500 PSAPs across North America trust a NetClock Time Server to validate 911 event records, improve response times and facilitate interoperability between networks, systems and inter-agency coordination with Legally Traceable Time®. The latest NetClock design is our most versatile with expansion card modules for increased capability demands, more built-in redundancy, and offering the highest levels of security on a network appliance.

The unit provides backward compatibility with legacy systems, while maintaining strict compliance to the National Emergency Number Association’s (NENA) Master Clock Standard #04-002, and support for Next-Generation 911 initiatives, including NENA’s i3 Solution and Security TID #075-001 standards.

Support and Documentation

NetClock 9483 Time Server Datasheet

Option Card Installation Guide, NetClock 9483

QuickStart Guide,
NetClock 9400 Series

NetClock GPS Command Center Package GP933-NG911 for Two Networks

NetClock GPS Command Center Package GP951-NG911 for a Single Network


  • Stratum-1 NTP v2, v3, v4 Time Server
  • Precision GPS Time reference with available OCXO internal time-keeping for extended holder in the event of loss of GPS (Global Positioning System)
  • Supports internal audits including: audit trails, time-stamped records, log files, data archiving
  • Ethernet 10/100 Base-T (additional 3-network Gig-E option)
  • Optional PTP master/slaves
  • IPv4/IPv6 dual stack
  • Integral AC power (additional DC back-up option for power redundancy)
  • Hardened case design for vehicular applications
  • RoHS compliant/UL approved
  • 5-Year limited warranty


SecureSync Image

SecureSync® Time Server

  • Premium, GNSS-Based Time Server Platform
  • Nano Second Accuracy Time &Frequency Synchronization
  • High Performance Internal Oscillators
SecureSync Image

NetClock GPS NTP Server

  • High performance GPS NTP Time Server
  • Variety of output signals supported
  • Configurable 1PPS offsets

Telnet Networks delivers to the Canadian market expertise in timing solutions for public safety, government, enterprise customers and service providers. We partner with leading suppliers to deliver master clocks, time servers, digital displays, analog clocks, digital message boards for display notification.

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