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LanzhouCard‑slot‑type clock server DNTS‑9

The DNTS-9 is an intelligent, high-precision satellite time‑synchronization device, specifically designed to provide a high‑accuracy time reference for automation in power systems.

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LanzhouNTP network time server

Phone: 010-62893032

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Product Description

Technical indicators

Project		Technical Specifications
GPS Receive Receiver	Sensitivity	Cold-start acquisition sensitivity: -148 dBm Hot-start acquisition sensitivity: -156 dBm Reacquisition sensitivity: -160 dBm Tracking sensitivity: -162 dBm
	Positioning accuracy:	2.5 rice
	During initial positioning:	32 seconds
	Cold start TTFF :	≤35 seconds
	Hot start TTFF:	≤1 second
	Recapture TTFF :	≤1 second
	Timing accuracy :	< ± 30ns
Beidou Satellite Star Reception machine	Sensitivity	Cold-start acquisition sensitivity: -148 dBm Hot-start acquisition sensitivity: -156 dBm Reacquisition sensitivity: -160 dBm Tracking sensitivity: -162 dBm Supports BeiDou navigation satellite signals (BeiDou-3), including B1I, B1C, and B2a service signals.
	Positioning accuracy:	2.5 rice
	During initial positioning:	32 seconds
	Cold start TTFF :	≤35 seconds
	Hot start TTFF:	≤1 second
	Recapture TTFF :	≤1 second
	Timing accuracy :	< ± 30ns
Device Interface		Flexibly configured according to actual application needs.
Network	Interface Specification	10Base-T/100Base-TX Adaptive, MDI/MDI‑X, automatic polarity reversal, IEEE 802.3
	Agreement	ARP, ICMP, UDP, NTP, SNTP, PTP, IP, Teln and
	UDP Receiving host	16 groups, supporting broadcast and multicast, meeting the time‑synchronization requirements of an unlimited number of hosts.
Serial port report Text	Serial port parameters	Baud rate: 600 bps to 115,200 bps, software-configurable; data bits, parity bit, and stop bits are configurable. Set.
	Message Format (Software) Optional)	1. Q/GD001-1154-3--2005 Guangdong Power Grid Substation GPS Technical Specification for Satellite Time Synchronization Equipment Formal report format; 2. Standard Design for Transmission and Transformation Projects of State Grid Corporation, 110–500 kV Substation secondary system section (none) Custom information) message format; 3. Standard time message format for the serial port; 4. Serial port time message format with frequency description; 5. GPZDA
	Optical fiber	Time accuracy: ± 1 ms. Signal: FTX. Single-mode, Multi-mode optional.
	RS232	Time accuracy: ± 1 ms. Signals: TX, GND.
	RS485	Time accuracy: ± 1 ms. Signals: TA, TB; each channel can drive up to 128 loads.
	TTL	Time accuracy: ± 1 ms. Signals: TX, GND.
Pulse (PPS, PPM, PPH)	On time along	TTL Level: Rising edge, rise time ≤ 50 ns; RS‑422, RS‑485: rising edge, rise Time ≤ 50 ns; optical fiber: rising edge; static dry contact: rising edge, rise time ≤ 1 μs.
	Level pulse width	10 ms to 800 ms The software is configurable, with a step size of 1 ms.
	Optical fiber	Time accuracy: ± 1 μs. Signal: FTX. Single-mode and multi-mode options available.
	RS232	Time accuracy: ± 1 μs. Signals: TX, GND.
	RS485	Time accuracy: ± 1 μs. Signals: TA, TB. Each channel can drive up to 128 loads.
	TTL	Time accuracy: ± 1 μs. Signals: TX, GND.
	OC gate output	Time accuracy: ± 1 μs. Signals: C, E. C E External applied voltage V CE: Maximum 300 VDC. CE Allowable collector–emitter current I_CE: maximum 200 mA.
IRIG-B	Symbol information	Symbol width: 1 per second Frame, each frame contains 100 One symbol, with each symbol lasting 10 ms. The time‑code information includes: time zone information, time quality information, and leap seconds. Identification information, SBS Information
	Optical fiber	Time accuracy: ± 1 μs. Signal: FTX. Single-mode and multi-mode options available.
	RS232	Time accuracy: ± 1 μs. Signals: TX, GND.
	RS485	Time accuracy: ± 1 μs. Jitter time: ≤10 0ns. Signals: TA, TB. Each channel can support up to Drives 128 loads.
	TTL	Time accuracy: ± 1 μs. Signals: TX, GND.
	IRIG-BAC	Time accuracy: ±20 μs, balanced mode 600 Ω , it can drive at 13 Vpp 330 Ω The above Purely resistive load, output amplitude: 2 ~ 13 Vpp, continuously software-adjustable; modulation ratio: 2 to 8, software-controlled. Adjustable; zero-crossing time offset: -30 to 30 microseconds Software-adjustable (used to enhance AC modulation) The time demodulation accuracy of the code square.

DCF77	Optical fiber	Time accuracy: ± 1 μs. Signal: FTX. Single-mode and multi-mode options available.
	RS232	Time accuracy: ± 1 μs. Signals: TX, GND.
	RS485	Time accuracy: ± 1 μs. Signals: TA, TB. Each channel can drive up to 128 loads.
	TTL	Time accuracy: ± 1 μs. Signals: TX, GND.
	OC gate output	Time accuracy: ± 1 μs. Signals: C, E. CE External applied voltage V CE: Maximum 300 VDC. C E interval Allowable Collector-Emitter Current I_CE: Maximum 200 mA.
NTP/SNTP		Time accuracy: 100 μs, standard 10/100BaseT Ethernet RJ45 interface/100BaseT Optical fiber mouth
PTP (IEEE 1588)		Time accuracy: 100 ns, standard 10/100BaseT Ethernet RJ45 interface/100BaseT Fiber optic port
Timekeeping accuracy		Timekeeping accuracy: 1 μs/hour; for applications requiring higher precision, the crystal oscillator can be replaced.
Crystal oscillator type (to be specified when placing the order)		5×10 -8 (1 μs/hour, 24 μs/ Day) ~ 2×10 -11 (1.2ns/ minutes, 1.728 μs/ Day) Choose between
Alarm contact type		Relay dry contact, 2+1 Alarm output (device fault alarm, loss-of-synchronization alarm, and device power-off alarm) Police ), Contact rating: 10 A (NO) / 250 VAC, 5 A (NO) / 30 VDC, 3 A (NC) / 30 VDC.
Insulation Can	Insulation resistance	The insulation resistance between each conductive circuit and ground is greater than 500 MΩ.
	Dielectric strength	Circuit with a rated insulation voltage greater than 60 V: 1.5 kV Power-frequency voltage or 2.1kV Direct current voltage For circuits with a rated insulation voltage ≤ 60 V: 500 V Power-frequency voltage or 710V Direct current voltage
	Impulse voltage	Circuit with a rated insulation voltage greater than 60 V: 5 kV For circuits with a rated insulation voltage ≤ 60 V: 1 kV
EMC	Electrostatic Discharge Immunity	Air discharge: ±15 kV; Contact discharge: ±8kV
	Radiofrequency electromagnetic field radiation Immunity	10 V/m; 80 MHz–1 GHz; Modulation: 80% AM
	Electrical Fast Transient Pulse Group immunity to interference	±4 kV, 2.5 kHz (power supply, alarm output) ); ±2 kV, 5 kHz (communication)
	Surge (impulse) immunity degree	Common-mode: ±4 kV, Differential-mode: ±2 kV
	Power-frequency magnetic field immunity	Steady magnetic field: 30 A/m; transient magnetic field (3 s): 300 A/m
	Pulse magnetic field immunity	Magnetic field strength: 300 A/m
	Damped oscillating magnetic field resistance Disturbance degree	Magnetic field strength: 30 A/m
	Damped oscillatory wave immunity degree	Common-mode: ±2.5 kV; differential-mode: ±1 kV; 1 MHz, 100 kHz
MTBF		>350000h