The NTP200/250 series is ideal for hobbyist, time enthusiasts, and just anyone who wants accurate clock synchronization in their home or business to either supplement or replace Internet NTP synchronization.
Feature | NTP200 | NTP250 |
Stratum 1 NTP |
Yes |
CPU & RAM |
Multi-core ARM CPU with 256MB RAM |
Multi-core ARM CPU with 512MB RAM |
Storage |
8GB or 16GB MicroSD card |
Wired Ethernet |
10/100mbps |
IPv4 |
Static or DHCP |
IPv6 |
Static or SLAAC EUI-64, SLAAC Token, and/or DHCPv6 |
Embedded View-only Webserver |
HTTP & HTTPS |
Admin Console / CLI |
USB or SSH |
NTP Client Tracking with JSON & CSV export |
Up to 500,000 unique IPs |
Up to 1,000,000 unique IPs |
NTP ACLs by IP/Mask |
Rate limit, Sync, Query, Block |
Cloud-Free Technology |
No stupid App, No online accounts, No subscription service, No Internet needed |
GPS Antenna Included |
Yes, with magnetic attachment, 10ft cord, and SMA connector |
GNSS Constellations |
GPS, GLONASS, Galileo, SBAS, QZSS |
Front Panel LEDs |
Power, System Status, NTP Status and PPS |
Internal Power Backup for GPS and RTC |
3+ Hours |
Graphs of GPS, NTP and System Status |
7-day graphs |
Location Privacy |
Location can be hidden or shown on Web interface |
JSON Encoded Raw Data for Custom Integration |
Yes |
LLDP |
Advertisement and Neighbor display |
Software Upgrade |
Automatic or Manual. Online or Offline |
PPS Output |
5V 2-pin pluggable terminal block connector |
DC Power Input |
8-14V (9V 1A or 12V 1A recommended) |
Power Consumption |
Typical 1W, Max 5W |
802.3af PoE |
No |
Yes |
Dual Redundant Power Inputs |
No |
Yes (DC + PoE) |