XHTF351P-S PTP Slave Clock Device

The XHTF351P-S PTP slave clock device is a high-precision clock node device that can be used for time synchronization networking. It is mainly synchronized with the upper PTP master clock device through the IEEE1588-2008 protocol, generating a variety of time-frequency signals using external or internal high-stability frequency sources.

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The XHTF351P-S provides the user with a 10MHz beacon signal, a 1PPS sync pulse and an IRIG-B time code. Can be widely used in communication base stations, high-precision network time synchronization and scientific research calibration laboratories.

Features

● Support the IEEE1588-2008 protocol;

● Can receive Beidou or GPS independently;

● Modular design of the whole machine, easy to operate and convenient to maintain;

● Complete SNMP network management.

Specifications

Input Signal					Output Signal
GPS Satellite Signal					10MHz Input
RF Signal	GPS L1 band				Signal level		Sine, amplitude 1±0.2V(rms)
Capture Time	Hot start <30s, cold start <50s				Harmonic suppression:		secondary <-30dB, three times <-40dB
GPS Timing Accuracy	Better than 50ns				Number of ways		1 way
Number of ways	1 way				Physical Interface		SMA
Physical Interface	SMA				1PPS pulse
BD Satellite Signal					Signal level		TTL
RF Signal	Beidou B1 band				Pulse width		30±1ms
Capture Time	hot start <30s, cold start <50s				Polarity		positive polarity
BD Timing Accuracy	better than 50ns				Rising edge and falling edge time		<20ns
Number of ways	1 way				Jitter		<3ns
Physical Interface	SMA				Synchronization accuracy		<0.1μs
10MHz Input					Number of ways		1 way
Signal level	Sine, amplitude 3~10dBm				Physical Interface		SMA
Number of ways	1 way				IRIG-B (DC)
Physical Interface	SMA				Signal level	RS422/RS485, in line with GB11014-90 standard
					Synchronization accuracy	<0.1μs (relative to 1pps signal)
					Physical Interface	RJ45, SFP
					Jitter	<3ns
					Number of ways	1 way
					Physical Interface	SMA
System Indicator
1PPS synchronization accuracy			<0.1μs
Frequency accuracy			<2×10-12 (built-in OCXO, Beidou/GPS locked 24-hour average)
Frequency source stability			<1×10-11/1s (built-in OCXO)
Network Interface
PTP Network Synchronization Interface
Working Mode		PTP slave clock mode;
Compliance		Supports IEEE1588-V2 version and supports E2E delay measurement mode;
Synchronization Interval		16pkt/1s~1pkt/64s;
Time Stamp Accuracy		<0.1μs;
Port		10/100/1000Mbps Ethernet port, RJ45
Number of ways		1 way
Network Management Interface
Protocol Requirements		SNMPv2c Protocol
Port		100/1000Mbps Ethernet port, RJ45
Number of ways		1 way
Dimension
Width × Height × Depth (mm)			430 × 44 × 300
19-inch 1U chassis
Electrical Characteristics
AC 220 × (1 ± 10%) V
Environmental Characteristics
Working Environment Temperature				-10 ° C ~ +50 ° C
Storage Environment Temperature				-40 ° C ~ +65 ° C
Relative Humidity				25%-95% (at 25 °C)
Power Supply				220 × (1 ± 10%) V, 50 × (1 ± 10%) Hz.
Main Functions
(1) Has PTP synchronization and receiving Beidou II, GPS function.
(2) Has a tamed crystal function.
(3) Has time display, delay correction, status display, reference source setting and synchronization mode setting function.
(4) Has network management function.

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