Time and Frequency Synchronization Device/Network Synchronization Device/Bits Device

Product Overview

The SM2000 is a carrier-grade, high-precision network synchronization device/time and frequency fusion platform that supports IEEE 1588. It utilizes digital phase-locked loop (DLLL) technology and an independent timing algorithm based on an FPGA (field programmable gate array) to provide high-precision and reliable time and frequency reference signals. The device provides a reference clock source compliant with ITU-T G.811 and G.812 standards; a traditional 2Mbit/2MHz frequency synchronization signal; and time outputs such as PPS+TOD, NTP, and PTP.

Features:

Supports IEEE 1588v2 and provides Layer 2/Layer 3 PTP output

Supports hot-swappable cards and expansion chassis

Passes Level 1, 2, and 3 network access tests by the Ministry of Industry and Information Technology

Passes Level 7, 8, and 9 earthquake resistance tests by China Telecommunication Technology Laboratory

Passes low-pressure testing, suitable for use in plateau areas

Supports CLI, SNMP, and TLI configuration and management

Main Applications:

Mobile operators' communication synchronization networks, power system communication synchronization networks, rail transit, and other synchronization scenarios.

Technical Indicators

Project		Technical Specifications
Timing Performance	Frequency Accuracy (Satellite Tracking)	±3.0E-13
	Frequency Accuracy (Free-Running)	±5.0E-11
	Pull-in Range	±2.0E-8
	Holdover Range	±2.3E-8
	Jitter	<0.01UI
	Drift	≤40ns/2day
	Holdover	≤-4.3E-12 (3.5days)
PTP Performance	Output Accuracy	<100ns
PTP Performance	Client Response Capacity	500client/s
Input Signal		GPS/Beidou Satellite Signal, E1, PTP, PPS+TOD
Output Signal		E1, PTP/NTP, PPS+TOD, 10MHz, IRIG-B
Extended Output		Supported
Management Port		RS232, RJ45
Network Management Protocol		Supports TL1, SNMP
Power Supply		-48V (DC), redundant dual power supplies
Power Consumption		<120W
Operating Environment	Temperature	-10℃~60℃
Operating Environment	Humidity	0~95% (non-condensing)
Dimensions (H × W × D)		177mm × 432mm × 287mm
Weight		≤10kg

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