CenterClick NTP200 Series Documentation - Reimage


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o Hardware 200/250
o Hardware 220/270
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o USB Console
o Admin CLI
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o SSH Authentication
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o PPS Output
o Reimage 200/250
o Reimage 220/270

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How to Reimage NTP200 and NTP250

Follow these instructions to reimage your NTP200 or NTP250. You may have been told to do this due to corruption or to debug an issue. Different instructions apply to reimage a NTP220 or NTP270.

This procedure requires physical access to the appliance, a small phillips screwdriver, and a laptop or computer with a microSD card reader.

To obtain a reimage image, please contact us so we can generate an image for you.

Shutdown and Open Appliance

Shutdown and remove all connections from the appliance.


On the bottom, remove all 4 screws and PPS connector if equiped.

Open 1

Use your fingernail to pry open the front edge (edge with the LEDs and command button).

Open 2

Carefully open the white portion of the case from the front edge first, then once the front is off maneuver the back edge over the antenna connector.

Remove microSD card and reimage


Remove the microSD card by pressing it to eject and place it in your computer.

Linux Users

On a linux system you can use unzip and dd to image the microSD card. Determine which block device is the microSD card, in the examples below sdc is used.

ubuntu:/local# unzip 
  inflating: chronos2_2.16.0_sdcard.img  
ubuntu:/local# dd if=chronos2_2.16.0_sdcard.img of=/dev/sdc
346112+0 records in
346112+0 records out
177209344 bytes (177 MB, 169 MiB) copied, 73.6391 s, 2.4 MB/s

Windows Users

On a windows systems, we recommend using ImageUSB from PassMark.

Unzip the compressed reimage image to obtain a .img file. WARNING: Windows defaults to hiding the file .zip extension even when it is still compressed.

File explorer

Attach your microSD card reader, and open ImageUSB. Select the USB reader, Browse for the .img file, and click Write

imageUSB setup

Replace microSD card and Close Appliance

Replace the microSD card, it will click into place.


Place the cover over the back connectors. Make sure the USB and Ethernet connectors are not caught on the case openings.


Before closing the case entirely, make sure the back cover is flush and not caught on any connector. Once checked, snap the front closed and make sure it is also flush. Re-insert the screws, do not over-tighten.


When reimaged, the appliance will reset to defaults automatically. Attach the admin USB console to reconfigure the device.

On the first power-up, the appliance will detect that a reimage has occurred and adjust partitions, reset to defaults, and reboot itself.

  ...Checking Storage
  ...checking flash: Patriot LX 16GB #1 14910MiB

  ...reimage detected
  ...updating GPT
  ...adding /data filesystem
  ...resetting to defaults

Depending on the version of software previously installed and the state of the SD card, you may be presented with a warning that board specific data is missing.

  ...Checking Storage
  ...checking flash: Patriot LX 16GB #1 14910MiB
Enabling HTTP...

NTP2xx documentation at

*** WARNING: Board-specific data is missing. Please contact support. ***

If so run 'setup' to re-initialize that data for your device. Most people will answer y to 'Has DC' unless you have a custom appliance with the DC-Barrel input depopulated. Answer y or n if your appliance has PoE.

NTP2xx> setup
  Enter SN? 220204
  Has DC? [y/n] y
  Has POE? [y/n] n
Please reboot to apply settings

NTP200> reboot
Checking for background upgrade... 

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