CenterClick NTP200 and NTP250 Documentation - LEDs


o Features
o Hardware
o Software
o Getting Started
o Release Notes
o Front Panel Button
o Front Panel LEDs
o USB Console
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o SSH Authentication
o Client List
o Antenna Issues
o Graphs

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NTP250 Front


The front panel LEDs can be in one of 4 states:

  1. green-off off
  2. green-blink single blink
  3. green-double double blink
  4. green-on on
PPS green-off The GPS hasn't established a fix with satellites
green-blink Each off-to-on transition is the precise start of a second
NTP green-off No GPS sync
green-double Holdover or high jitter
green-on Synchronized
SYS green-off Just after powerup or shutdown/off
green-blink System booting
green-double Bad power input or no network
green-on Power and network good
PWR green-off No power
green-on Powered on
Ethernet Port green Booted and Ethernet link up
orange Rx/Tx packets

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