- Contact Person : Mr. Yang Kevin
- Company Name : Beijing ChipCity Technology Co., Ltd.
- Tel : 86-10-62410060-8006
- Fax : 86-10-62410060-8004
- Address : Beijing,Beijing,3-1313, Building 16, Chengnan Jiayuan Yichengyuan,City Avenue, Fengtai District
- Country/Region : China
- Zip : 100068
Related Product Searches:CC81131:Synchronous Clock System,High Quality,Synchronized Clock, frequency reference receiver,CC81131
Detailed Product Description
CC81131 is a high performance time and frequency reference receiver, able to telecom, mobile communication base station, PHS base stations, GSM network optimization system provides high-precision time and frequency synchronization signal.
CC81131 uses a low phase noise PLL technology and large-scale integrated circuit design, built-in high stability constant Wenjing Zhen OCXO and high quality, precision timing GPS receiver type, frequency of monitoring the use of advanced GPS technology, the crystal oscillator The output frequency of precision measurement and adjustment, to accurately synchronize the output frequency GPS systems to provide high-precision time and frequency reference signal can be output to meet the ITU-T G.811 requires a reference clock source, you can use in the digital switch , SONET and SDH transmission systems. At the same time, CC81131 can also at any level of timing signal generator (TSG) to provide a clock synchronization signal, can provide tracking and UTC time out of 2.048Mb / s (E1) and 2.048MHz output signal.
CC81131's Opt-EIO option provides retiming function, can receive E1 signals and use their precise time of their re-decoding the reference signal, the output waveform consistent with ITU-T G.703 HDB3 pattern as the E1 signal, when the device Degraded or their own power, it will start direct mode will receive the E1 signal output.
CC81131 1pps output signal is output frequency GPS signal after tame 10,000,000 obtained after frequency, phase, strictly consistent with the carrier signal, and the GPS second pulse from a short random changing impact of time base equal to UTC "The Return of now. " This feature is particularly suitable for time-frequency communication base stations and other critical systems.
CC81131 GPS tame in the process of the crystal can continue to "learn" characteristics of the crystal drift, and these parameters are stored in onboard EEPROM memory. When the GPS is not available or when abnormal, CC81131 can automatically switch to hold mode (Hold-over mode), maintained by the intelligent and efficient algorithms, relying on built-in high stability crystal oscillator to continue to provide high reliability of the time and frequency signal output, in a short time remained within the higher accuracy. When the device is powered off after a reboot, the device can use the already stored historical data, the clock in a short time to achieve high accuracy.
CC81131 front panel has the power, GPS, 1pps, locks and other lights, and LCD screen in real time through the LCD displays the current time and the GPS work status and other information. CC81131 supports both GPS and other serial output status information, easy to implement integrated systems management and monitoring.
Features:
Clock output: 10MHz, 2.048Mb/s(E1), 2.048MHz, 1pps, IRIG-B, RS232, RS422, RS485
We configure clock output according to the different demand. For example, as single GPS, single BEIDOU or GPS / GLONASS reference source.
Industrial grade components, large scale integrated circuit and the original algorithm ensures excellent reliability and availability.
The average frequency accuracy better than 1E-12 (continuous tracking GPS signals 24 hours later); meet the ITU-T G.811 protocol for a reference clock source.
Specifications
Interface:
Antenna Input: 1 channel, N type, 1575.42MHz
2.048MHz signal output 1 channel, BNC, square wave, 75Ω
Frequency Accuracy: <1E-12 (GPS lock, 24-hour average)
Drifting: ITU-T recommendation G.811 meet the requirements of
Jitter Generation: ≤ 20ns (peak - peak)
Maintain accuracy: <5E-10 (GPS off, for 24 hours later)
2.048Mb / s (E1) signal output 1 channel, BNC interfaces, 75Ω
Line coding: HDB3
Waveform: meet the ITU-T G.703
Pulse Amplitude: Nominal 2.37V ± 0.237V base-to-peak
Drive capability: to meet the ITU-T G.703
Jitter performance: meet ITU G.823
10MHz signal output 1 channel, BNC, square wave, TTL level
Frequency stability: better than ± 5E-10 (0 ~ 50 °C)
1PPS pulse output 1 channel, BNC Interface, TTL level impedance: 50Ω
Rising: <20ns
Timing accuracy: <100ns (satellite tracking error relative to UTC time)
TOD information output: 1 channel, DB-9 female, RS232 level, ASCII code
9600-N-8-1, GPS status, time information, per 1
Display
Indicator: Power, GPS, 1pps, Tracking
LCD screen: year, month, day, hour and working conditions GPS
GPS receiver
12 parallel channel GPS receiver
Receiver L1, C / A code signal-1575.42MHz
Physical and environmental parameters
Size: 1U chassis 447 × 44.5 × 300mm
Weight: <5Kg
Power supply: -40 ~-60V DC
Operating temperature: -10 °C ~ 55 °C
Storage temperature: -25 °C ~ 85 °C
Humidity: 95% non-condensing
Power consumption: <20W
Standard
CC81131 host 1
Timing antenna (including 30 m cable, mounting bracket) 1 set
Chinese Manual 1
Certification and warranty card 1
Product Test Report 1
Options
Opt B: IRIG-B DC Code Output
Opt BD: BD reference source
Opt EIO: retiming input
E1 signal input 1 channel, BNC interfaces
E1 signal output 1 channel, BNC Interface (2048Kbit / s)
Line coding: HDB3
Waveform: meet the ITU-T G.703
Pulse Amplitude: Nominal 2.37V ± 0.237V base-to-peak
Drive capability: to meet the ITU-T G.703
Load Impedance: 75Ω
Jitter performance: meet ITU G.823
Opt F: DCF77 Code
Opt G: GLONASS reference source
Opt N: SNTP protocol, MIB II
Optional power supply: AC220V, DC48V, 24V, 12V
Antenna cable extension
CC81131:Synchronous Clock System