NS8004-NTP Stratum 1 Time Server & 4-Channel Frequency Reference

NR8004-NTP

Small Form Factor, Low Cost Stratum 1 Time Server with GNSS-Locked Multi-Signal Frequency Reference

A low cost high performance Stratum 1 time server and frequency reference in a compact chassis (90mmX120mmX27mm) that can be shelf or rack mounted (rack mount kit available). The 2 analog and 2 digital outputs are independently user-selectable for 10 MHz sine, PPS, LVDS, IRIG, or square wave (10Hz - 25MHz). Timing that is accurate in the tens of ns. PPS leading edge can be locked to the 10 MHz in 5 ns steps.

• NTP v4
• Stratum 1
• +-150 ns accuracy
• 100,000 transactions/second
• Compatible with all network timing systems
• PPS accuracy 5 ns 1 sigma
• Benchtop or rackmount with kit
• 2 analog channels: 10MHz (Low Phase Noise), PPS, 10Hz-25MHz Square Wave, IRIG AM, Have Quick
• 2 digital channels: PPS, IRIG-B DCLS, 10Hz – 25MHz Square Wave, LVTTL, LVDS
• Dual independent GNSS receivers with PPS and 10 MHz OCXO frequency reference
• Auto-calibration preserves GNSS-derived coefficients for OCXO holdover stability
• OCXO holdover stability: 5 ppb/day, 50 ppb/year; locked accuracy <2E-11
• Low phase noise: −145 dBc/Hz @ 1 kHz offset
• Status LEDs for channel, antenna, oven, and system alerts
• Ethernet connectivity with NTP
• Outputs are transient and fault protected; low-jitter PPS with PL-option
• Supports GPS, GLONASS, Galileo, and BeiDou constellations for faster lock and reliability
• DC powered (9-48 VDC)

The NOVUS NS8004-NTP delivers precise time and frequency synchronization for laboratories, telecom systems, power utilities, and secure networks.  With front-panel status indicators, this NTP time server ensures continuous operation and simplified system diagnostics for demanding applications.

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, Galileo, and BeiDou to minimize lock time and enhance reliability.
3. What connector options are available?
   The unit comes standard with 2 SMA analog outputs and 2 digital outputs (6-pin 2.0 mm pitch)