NTP100 – Rev 2.2.0 Oct-12
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NOTE: The models NTP100-OSC and NTP100-OSC-HS do not have an external input, this feature will be grayed out
for this model. Thus, the stratum level can only be adjusted for the Internal Clock.
Brightness
- The brightness or intensity of the NTP100’s front-panel time display can be adjusted from dim to bright.
The display can be dimmed here for low-light environments.
Advanced
– Certain advanced features may be configured using the “Advanced” button. These features include , access
to the telnet configuration interface and the ability to continue serving time during extended GPS or Time Code outages.
By default, the models NTP100-GPS, NTP100-GPS-HS, and NTP100-TC will allow time dissemination (NTP service) for a
period of 24 hours from loss of the primary source (GPS or Time Code respectively). During this “free-wheeling” or
“holdover” period, the NTP100-GPS and NTP100-TC will rely on the internal real-time clock (RTC) and temperature
compensated crystal oscillator, (TCXO )oscillator, which has a typical holdover of +/- 1 min /year (+/- 165mSec drift over
24 hours or +/- 6.875 mSec drift over 1 hour). The model NTP100-GPS-HS will rely on the internal RTC and OCXO (oven
controlled crystal oscillator), which has a typical holdover (stability) of < 7 sec/year (<19mS drift over 24 hours or <.8 mS
over 1 hour)
The NTP100 (models –GPS and –TC) will continuously discipline the internal RTC to provide maximum accuracy, while
locked to the primary GPS or Time Code reference, when trusted and available).
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