NTP100-OSC Time Server

The NTP100-OSC NTP time server synchronizes to a TCXO (temperature-compensated internal oscillator) and sends NTP reference signals to NTP devices via Ethernet, maintaining an accuracy of ± 1min/year or < 165ms per day. An optional OCXO increases stability to ± 250ms/year.


  • NTP output accuracy of ± 2 ms

  • Time synchronized to internal precision temperature compensated crystal oscillator (TCXO)

  • High-stability option with OCXO provides typical stability of 250ms/year

  • NTP unicast, multicast or broadcast modes

  • Assignable network configuration

  • Configuration via Telnet/SSH or included WinDiscovery

  • IPv4/IPv6 compatible

  • MD5 authentication

  • Time stamp precision/resolution of 5-10ms


Holdover Accuracy  

  • After initial input of time, the NTP100-OSC will typically maintain accuracy of ± 1 min/year using standard internal precision TCXO temperature-compensated crystal oscillator

  • High-stability option with OCXO provides typical stability of 1 ppb/day (± 250ms/year)


  • NTP reference for query (Unicast), Multicast, or Broadcast mode – user definable

Rack Mount


  • RJ45 ─ 10/100 MB

  • DC input ─ 2.1 mm male jack

  • RS-232 ─ 9 pin male

  • USB – for configuration via WinDiscovery

Physical Size

  • 6.44 x 4.06 x 1.44 in (16.35 x 10.32 x 3.65 cm)

  • 16 oz 453.6 g


  • Cover: black aluminum

  • Front/rear panel: Clear anodized aluminum


Network Compatibility  

  • NTP unicast, multicast, or broadcast mode

  • Supports:

    • NTP v2 (RFC 1119)

    • NTP v3 (RFC 1306)

    • NTP v4 (RFC 5905)

  • DHCPv4, DHCPv6 for automatic acquisition of network address, name servers, and timeserver configuration

  • Telnet/SSH communication

  • IPv4/IPv6 compatible

  • SNMP with custom MIB


  • Provides dynamic configuration for networking parameters

  • Network discovery tool provides automatic discovery of NTP devices attached to network without changing PC’s networking configuration

  • Configuration is saved to non-volatile memory and survives power losses

  • Authenticated network messages prevent unauthorized tampering of clock configuration

Power Supply  

  • DC input (9-28 VDC)

  • Power consumption: <7.5W

  • Includes an external 24 VDC wall-mount power supply with locking DC plug, UL & CE listed

  • Supplied with your choice of US, Euro, British or AUS/NZ plug- others optionally available


  • CE Marked – Available for sale in EU

  • FCC, Part 15, Class B, emissions