GPS Glonass Beidou Time Synchronization Box, Industrial Gnss Time Server with 20ns Accuracy 1PPS Output

Product Description

CoreLogic R&D Team

Product Description

GNSS Time Synchronizer with Holdover Function 

CL-1021
     CL-1021 general-purpose GPS timing box with holdover function provides automatic switching 
between GPS and OCXO as the source of 1PPS, 
utilizing an adaptive tracking holdover algorithm.
     In the absence of GPS signals, it provides the 
holdover function (OCXO output) that meets the 
user's demand for a 24-hour 1PPS deviation 
of less than 1.5us. The modular design of the external solution supports any installation 
environment and orientation in the field, making it convenient for existing wireless communication 
base stations to be upgraded.

Specification

Features

*Receiver Type: 72-Channel u-xxxx M8 engine. * GPS L1C/A. *GLONASS L.1OF. * BeiDou B1

*Sensitivity: Tracking/Navigation -160dBm. Re-acquisition -155dBm. Acquisition cold start -148dBm

*Time pulse accuracy: Clear sky ≤ 20 ns. Indoor ≤ 500 ns. 

* GNSS Antenna: Provide the power feeding up to 120mA at 5V±0.5V.

SYNC OUT & 1588 OUT Port	Power Supply
* 1PPS Output, Pulse Width 100ms	* Power Supply: -48V DC, AC/DC adapter is optional
* TOD Output, Optional Protocol	* Power consumption: ≤15W
* 10MHz Output, Duty Cycle 50%
* Control signal, Optional Protocol	Environmental
	* Operating Temperature: -20°C~60°C
Time Output	* Storage Temperature: -40°C~85°C
* Standard: Stratum 2 (ITU-T G.812: type II)	* Humidity: <95% non-condensing
* Accuracy: <1E-12 (Average over 24 hrs GNSS   lock)
* Holdover Accuracy: <2E-11 (24 hrs after GNSS   off, ΔT =5°C, Holdover capability ≤1.5us)	Mechanical Dimensions
	* 107mm(W)x66mm(H)x149mm(D), other sizes are optional

Equipments

Production Lines

Packing & Transportation

Company Profile

Company Profile

Founded in 1998, Beijing CoreLogic Communication Co., Ltd. is a specialized manufacturer of telecommunications equipment and electromagnetic components, supported by an experienced in-house R&D team.

The company began its journey in the wireline telecom sector, starting with ISDN technology. Over the years, we have developed a diverse portfolio including ISDN access terminals, xDSL filters and splitters, electromagnetic components, and media converters.

Since 2012, CoreLogic has strategically shifted its focus from wireline telecom to wireless networking solutions. Our current product range includes:

GNSS Timing & Synchronization Systems
GNSS Antennas
Auxiliary Equipment for Mobile Base Stations

Electronic Components – Transformers & Surge Protectors
xDSL Splitter for CO & CPE
IoT Monitoring Devices

With a strong commitment to quality and innovation, CoreLogic has become a trusted supplier for leading enterprises in the broadband industry. Our production facilities are equipped with advanced manufacturing lines and operate under a comprehensive quality assurance system.

We are certified to ISO 9001, ISO 14001, and ISO 45001, ensuring consistent product excellence, environmental responsibility, and workplace safety.

Corporate Culture

At CoreLogic, we believe that a successful business is built on responsibility, respect, and a shared sense of belonging. We are committed to protecting the environment, conserving energy, and reducing emissions, while maintaining a clean, well-organized, and safe production environment. Strict adherence to occupational safety regulations and workplace health standards is an integral part of our daily operations.

For nearly three decades, we have fostered a workplace where colleagues feel like family. Annual team-building events—ranging from sports activities to cultural outings—have become a cherished tradition, strengthening bonds across the company. This spirit of unity, care, and mutual support is what truly sets CoreLogic apart in our industry.

FAQ

Why choose us?

1. nearly 30 years experience in RF & wireless and Timing & Synchronization equipment, more than 100 different items.
2. All products are developed by our experienced R&D team, which allow us to provide best after-sale support&service.
3. Excellent pre-sale and after-sale technical team.
4. High quality with competitive price.
5. Fast feedback and fast delivery.
6. OEM & ODM JDM supported.