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CS4000 Cesium atomic frequency standard
Cesium atomic freque

CS4000 Cesium Atomic Frequency Standard quote

Product Description

The Cs4000, utilizing third-generation cesium clock technology, achieves full specifications within 30 minutes of startup. As an upgrade to Cs3, it provides more output signals in a 3U rack-mount chassis while also allowing for user-selectable output interfaces to meet various signal requirements.

The Cs4000 is a novel cesium clock offering exceptional performance in a 3U standard rack-mount configuration. Designed for high-precision timing and frequency applications, the Cs4000 delivers highly stable, low-noise RF and 1PPS reference signals. Leveraging advanced digital technology from Microsemi (acquired Symmetricom), the Cs4000 delivers outstanding performance.

Featuring a new color front panel, the Cs4000 provides a graphical user interface for convenient monitoring by users. This interface is effective for all cesium clocks and optional output cards, allowing users to easily monitor the health status, operation, and configuration data of the cesium clock. The Cs4000 offers two methods of remote access: first, through web server-based full-featured pages accessed via Ethernet, and second, through an RS232 serial port using ASCII commands or monitoring software.

The Cs4000 offers both standard and customized output signals. Standard signals include 100kHz, 1MHz, 5MHz, 10MHz, and 1PPS. Customized outputs include various E1/T1 signals and alarm signals. The Cs4000 features a dedicated area for customized signal output, ensuring it does not affect the performance of standard signal outputs. With its capabilities, the Cs4000 is suitable for applications in laboratory standards, satellite communication terminals, mobile communication systems, and a wide range of testing and measurement fields.

Network Protocols

NTP v1.v2.v3&v4 (RFC1119&1305), SNTP (RFC2030), MD5 Authentication (RFC1321), Telnet (RFC854), NTP Unicast, Broadcast, Multicast, Autokey, TIME (RFC868), FTP (RFC959), DAYTIME (RFC867), DHCP (RFC2131), RSA Asymmetric Encryption, HTTP/SSL/HTTPS (RFC2616), SNMP v1, v2, SSH/SCP (Internet Draft), MIB II (RFC1213)

Input/Output

Frequency Output:

Frequency	Output Channels	Waveform	Amplitude	Harmonics	Spurious
100kHz	1	Sine	1Vrms	<-40dBc	<-80dBc
1MHz	1	Sine	1Vrms	<-40dBc	<-80dBc
5MHz	2	Sine	1Vrms	<-40dBc	<-80dBc
10MHz	2	Sine	1Vrms	<-40dBc	<-80dBc
Interface	BNC	BNC	N	N
Impedance	50Ω	50Ω	50Ω	50Ω
Location	Rear Panel	Rear Panel	Rear Panel	Rear Panel

Time Output:

Output Form	Output Channels	Amplitude	Pulse Width	Rise Time	Jitter	Interface	Impedance	Location
1PPS	3	>3Vrms	20 μs	<5ns	<1ns rms	BNC	50Ω	2 Rear Panel, 1 Front Panel

Time Input:

Sync Input	Input Channels	Interface	Impedance	Location
1PPS	2	BNC	50Ω	1 Rear Panel, 1 Front Panel

WEB Network Management and Monitoring:

- Real-time monitoring of system status, including RAM and CPU utilization, processes, CPU average load, disk partition information, system uptime, and running time.

- Display system information such as host name, operating system kernel version, memory, CPU information, and system scheduled tasks.

- Real-time monitoring of network interface transmission rate, network connectivity, ARP cache table, and network interface bandwidth display.

- Directly query the IP address and login date of the most recent login server, as well as information about the currently logged-in account.

Key Features:

- Multiple RF outputs

- CsIII technology

- AC and DC inputs

- Built-in backup battery

- Color front panel user interface

- 10b/100T remote interface

- Full startup in 30 minutes

Performance Parameters:

Parameter	Standard Model	High Performance Model
Frequency Accuracy	±1x10^-12	±5x10^-13
Startup Time	30 minutes (typical)	30 minutes (typical)
Frequency Reproducibility	±2x10^-13	±2x10^-13
Frequency Adjustment Range	±2x10^-9	±2x10^-9
Adjustment Accuracy	1x10^-15	1x10^-15
Frequency Stability (Allan Deviation)
1 second	≤1.2x10^-11	≤5x10^-12
10 seconds	≤8.5x10^-11	≤2.7x10^-12
100 seconds	≤2.7x10^-12	≤8.5x10^-13
1,000 seconds	≤8.5x10^-13	≤2.7x10^-13
10,000 seconds	≤2.7x10^-13	≤8.5x10^-14
100,000 seconds	≤8.5x10^-14	≤2.7x10^-14
Floor	≤5x10^-14	≤1x10^-14
Phase Noise
Offset (Hz)	Standard Model (5MHz output)	High Performance Model (5MHz output)
1	≤-95dBc	≤-102dBc
10	≤-130dBc	≤-130dBc
100	≤-145dBc	≤-145dBc
1,000	≤-155dBc	≤-155dBc
10,000	≤-155dBc	≤-155dBc
100,000	≤-160dBc	≤-160dBc

Physical Characteristics:

Parameter	Specification
Operating Temperature	0°C to 50°C
Humidity	95%
Transportation and Storage Temperature
Long-term	-30°C to 70°C
Short-term	-40°C to 75°C
Magnetic Field	0 to 2 gauss
Shock	0g/11ms, 3 axes
Vibration	MIL-T-28800E, Type III, Class 5
Altitude	0 to 50,000 ft
AC Power Supply	85 to 264 Vac, 47 to 63Hz
Power Consumption	64W (normal), 80W (startup)
DC Power Supply	36 to 75 VDC (24VDC input option, 18 to 36V)
Power Consumption	60W (normal), 70W (startup)
Dimensions	47.73 x 13.25 x 52.40 cm (17.22 x 5.22 x 20.63 inches) (W x H x D)
Weight	20.4 kg (45 lbs)
Remote System Interface and Control
Interface	RS-232-C (DTE configuration)
Full remote control and interrogation of device functions and parameters
Interface Connectors	RS-232-C: 9-pin D-sub
Location	One on front panel, one on rear panel
Alarm (TTL)	BNC
Location	Rear panel
Alarm Output TTL	High indicates normal, Low indicates fault

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PNT stands for Positioning, Navigation, and Timing
Bd Star is a national high-tech enterprise specializing in Beidou GPS timing and navigation industry. The company is dedicated to the research and development, design, production, and sales of system solutions such as standard time timing
Experienced
BdSTAR TIME seamless switching technology for redundant reference sources includes several technical components such as high-precision phase-shifting technology, reference clock, FPGA, integrated analog stretching, asynchronous serial communication, parameter storage, and master clock output.
Requirement customization
The core technology team of the company has many years of research and development experience in the field of timing and frequency. They possess multiple key core technologies in high-precision timing, PNT combination, frequency measurement, control, optical fiber time-frequency transfer, recovery, and maintenance.
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"Our team of experts is committed to providing you with the best industry solutions, reducing project costs, and saving your valuable time. Additionally, our ability to design and use various timing and navigation components enables us to develop customized products for various special applications."

CS4000 Cesium atomic frequency standard
Cesium atomic freque