NS8000-PTP PTP/NTP/IRIG Time Server with 10 MHz, PPS OCXO Reference

NS8000-PTP

PTP/NTP/IRIG Time Server with Dual-Channel GNSS-Locked 10 MHz OCXO Reference

A high performance timing reference that offers PTP, NTP and IRIG as well as 10 MHz, PPS and other related functions. Dual- hot swappable power supplies assure availability. PPS edge locked to the 10 MHz with the edge located anywhere on the 10 MHz period in programmable 5 ns steps (especially important in SDR applications). dd up to five cards with 10 MHz, IRIG and PPS outputs. Up to 25 -10 MHz or 25 - PPS or any mix inbetween.

• PTP/NTP/Sync-E
• Stratum 1
• +/- 25ns accuracy
• 100,000 transactions/second
• compatible with Novus Network Timing
• PPS accuracy 5 ns 1 sigma
• auto-calibration preserves GNSS-derived coefficients for OCXO holdover stability
• Rubidium holdover option available
• OCXO holdover stability: 5 ppb/day, 50 ppb/year; locked accuracy <1E-11
• low phase noise: −145 dBc/Hz @ 1 kHz offset
• front-panel LCD with status LEDs for channel, antenna, oven, and system alerts
• ethernet connectivity with NTP; supports SNMP and NMEA network monitoring
• outputs are transient and fault protected; low-jitter PPS with PL-option
• supports GPS, GLONASS, SBAS, and QZSS constellations for faster lock and reliability
• AC/DC power capability dual hot swappable power supplies

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FAQ

1. What happens if GNSS lock is lost?
   Auto-calibration applies stored compensation coefficients, maintaining OCXO stability (5 ppb/day typical) until lock is restored.
2. Which satellite constellations are supported?
   The system tracks GPS, GLONASS, SBAS, and QZSS to minimize lock time and enhance reliability.
3. How does the dual-time base option work?
   It adds a second GNSS receiver and gapless counter that continually verifies the 10 MHz reference and warns of tolerance drift.