NTP100 – Rev 2.2.0 Oct-12
1
© Masterclock
®
, Inc.
Introduction
Introducing the NTP100 Family
The NTP100 is a family of high-precision, small profile, Ethernet network timeservers, utilizing the Network Time
Protocol (NTP). The NTP100 family of NTP time servers, consists of the following NTP100 members:
MODEL Primary Reference Secondary Reference Tertiary Reference
NTP100-GPS-HS
High Stability
External GPS satellite signal
• internal GPS receiver
• requires external GPS
antenna
Internal OCXO (Oven
Controlled Crystal
Oscillator), & RTC (real-time
clock) reference.
Internal TCXO
(Temperature
Compensated Crystal
Oscillator), & RTC (real-
time clock) reference.
NTP100-GPS
External GPS satellite signal
• internal GPS receiver
• requires external GPS
antenna
Internal TCXO & RTC None
NTP100-TC
External Time Code signal
using
• internal time code
decoder
• requires external
SMPTE 30/25/24 fps
or IRIG-B/B(1) time
code source
Internal TCXO & RTC None
NTP100-OSC –HS
High Stability
Internal OCXO (Oven
Controlled Crystal Oscillator),
& RTC (real-time clock)
reference.
Internal TCXO & RTC None
NTP100-OSC
Internal TCXO (Temperature
Compensated Crystal
Oscillator), & RTC (real-time
clock) reference.
None None
Each NTP100 device can operate on a local area network (LAN) or act as an enterprise-wide source for traceably
accurate time and date distribution, depending upon your network configuration.
Each NTP100 device includes the WinDiscovery configuration & management software, as well as a Telnet interface for
configuration and maintenance. Other common features include:
• Internal battery backed real time clock (RTC) with temperature compensated crystal oscillator (TCXO), retains
time during loss of power (all models), GPS satellite signal (model –GPS), or time code signal (model –TC).
Typical holdover stability of TCXO is <165mS/day.
• High Stability models have Oven Controlled Crystal Oscillator (OXCO) and RTC which maintain typical holdover
stability of 1ppb/day (<19mS/day or <7 sec/year) while powered and after initial time input or GPS lock, and 30
days aging. High Stability models revert to a precision TCXO and battery backed RTC during loss of power
• Supports NTP broadcast, multicast, and/or unicast (query) mode.
• Fully configurable network settings, including DHCP/BOOTP or Static IP addressing support
• Security features include password protection of configuration, encrypted communication, and the ability to disable
telnet management access
• Adjustable time display brightness
• Status display to remotely monitor status and behavior
• Selectable Stratum Identification levels
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