Server K801B of the Big Dipper clock

May 17th, 2016

Clock server summary of the Big Dipper

The intersection of the Big Dipper and the intersection of clock and server (the intersection of GPS and electric the intersection of time service and products, the Big Dipper network, at the school, GPS satellite clock) Regard GPS the Big Dipper satellite system as time basis, export second when is in pace with height of UTC time ( 1PPS) , ( 1PPM) , hour ( 1PPH) Wait for the intersection of pulse and information, at the standard Beijing time, minute or second, the intersection of the Gregorian calendar and the intersection of day, month and year and message, also can realize the intersection of worker and measurement of quantity frequently, output date, time, BoZhong, the intersection of Engineer and quantity message frequently Zhou respectively through serial mouth according to corresponding form. The device has interface forms such as standard RS232, RS422/RS485, IRIG-B, DCF77, NTP/SNTP, IEEE1588 agreement,etc.. Can expand interface quantity as requested, is it and getting more very last second, assign to way, when,etc. pulse (can change at will) ,The convenient barge with the relevant apparatus is connected, realize the unidirectional or two-way communication.

Shanghai presents the electric Co., Ltd. products to adopt SMT table to stick technology to produce sharp, controls with the high-speed chip, have high stability fine precision and function strong, have, accumulate error, receive region, climate environmental the intersection of terms and restriction, the intersection of cost performance and characteristic high and easy to operate. Field of employing when power system, network moving ahead simultaneously, communication, traffic administration and national defence,etc. need to correct time, write, punctual extensively etc..

Function characteristic of the server of the Big Dipper clock

1. Can offer many way pulse signals (1PPS/M/H, TTL, empty joint, difference is divided, 24V/110V/220V is active, light) , time offers gentle(RS232, RS422/485, light)s , IRIG-B signal ( 422, TTL, AC, light) , DCF77 signal, NTP/SNTP agreement network clock synchronization signal, PTP( IEEE1588) Agreement signal, synchronous signal of 10MHz frequency, the interface requirement when can meet the school of different apparatuses.

2.The panel reveals Beijing time, date and visual satellite count, the programming states of 4 groups of pulses, Potter rate.

3.12 passway GPS receivers run side by side; 6 passways of the Big Dipper satellite receiving but the apolegamy.

4.1PPS( GPS) Pulse and 1PPM divide pulse into output every first TTL level second, test.

5.Four buttons set up modification parameter, look over the internal data, the working parameter set up loses the electricity and does not lose.

6.But the apolegamy of the software at the time of network time service function RJ45 Ethernet interface and customer end school.

7.Quantity of empty joint of the pulse and IRIG-B one yard of interface quantity outputted can be expanded again.

8.The device adopts the whole module structural design of using simultaneously, support heat of the board card to be inserted and pulled out, it is flexible to dispose, it is convenient to safeguard, the power plant / transformation of transformer substation increased or changed and corrected time while extending the interface of the signal provided convenience for future at the same time.

Technical parameter of the server of the Big Dipper clock

Physics and environmental parameter

Size: 19 inches of 1U/2U machine cases

Weight: < 3.6Kg

Power: Exchange direct current, 110/220V¡À 20%, can make to order a pair of power

Working temperature: -10 ¡æ- 50 ¡æ

Store the temperature: -25 ¡æ- 85 ¡æ

Humidity: 95% have not been condensed

Consumption: < 15W

Output signals

The apparatus adopts the whole module structural design, it is all compatible to not merely realize the board card, have offered abundant signal interface resource and open special interface to design the platform, possess excellent compatible ability. Can offer many way pulse signals (1PPS/M/H, TTL, empty joint, difference is divided, 24V/110V/220V is active, light) , time offers gentle(RS232, RS422/485, light)s , IRIG-B signal ( 422, TTL, AC, light) , DCF77 signal, NTP/SNTP agreement network clock synchronization signal, PTP( IEEE1588) Agreement signal, synchronous signal of 10MHz frequency, the interface requirement when can meet the school of different apparatuses.

GPS receiver

High-accuracy time service type GPS receiver, the precision of time service is superior to 30ns

Catch time: The cold starts & lt; Warm in 45 seconds to start & lt; & lt of hot starting of 38 seconds; Catch & lt again in 5 seconds; One second

Receive L1, C/A one yard of signals – 1575.42MHz, BNC interface

Follow / catch the sensitivity: -173dBW /-185dBW

Anti-interference

Under being been struck by lightning voltage, once return circuit and operating, switch a trouble, operating and other strong interference effect of return circuit two times, the device does not miss acting.

The device static discharges the interference is tested, electricity turn pulse into wink fast groups of the intersection of interference and test, high-frequency the intersection of interference and test, radiation electric magnetic field interference test and damping shake wave interference test and wave well up ‘ Assault) It accords with standard GB/T17626-1998 (test and measure technology electromagnetic and compatibly) to interfere with the test With GB/T15153.1-1998 (move apparatus and system far Part 2 : Condition of work The first: Power and electromagnetic compatibility) ,And reach grade and the above standard.

Hardware specification of the server of the Big Dipper clock

1,Machine case: The high-quality panel takes shape, the high-temperature baking finish of spraying is protected

2,Panel: Import the aluminium alloy panel in high strength, the wire drawing of surface is oxidized and dealt with

3,Install: Standard 19 One inch of frameworks

4,Export the interface:

a) 1PPS, 1PPM pulse signal ( Empty joint) Or 5V active pulse is exported

b) 1PPS, 1PPM pulse signal (difference divides signals, namely RS-422 level)

c) Time offers the gentle bunch of mouths (RS232, RS422/RS485) Output

d) IRIG-B( DC RS- 422) Yard is exported hour

e) IRIG-B( DC TTL) Yard is exported hour

f) IRIG-B(AC) Yard is exported hour

g) DCF77 signal exported

h)Signal of correcting time of NTP/SNTP network

5,Input the interface: No. GPS signal 1 is input, BNC connects

6,Debug the mouth: 10 stitch end sons in year arrange the board

7,Security: Satisfy the basic demand of GB4943, dependability: The working time of average fault-free is greater than or equal to 10000h, resist and assault: 10g acceleration, 11ms cycle.

8,Electromagnetic compatibility: Accord with the radio and harass limit GB-9254-1998 standard A grade

The typical achievement of the server of the Big Dipper clock:

National Ann supervises the general bureau, public security bureau of Zhejiang Province, it is in charge of the office that East China of the civil aviation is empty, the People’s Hospital, Rui’an of Zhejiang, Hubei assist the intersection of broadcasting and TV and office Fan, Mount Tai sea power generating Co., Ltd. of the Inner Mongol, synchronous project of arterial time of centre line of South-North Water Diversion, branch company of the petrochemical industry of CNPC Ningxia, post and telecommunications university, Henan Province people’s air defense, national Ann of the People’s Bank of China, Chongqing supervise the general bureau, African Guinean transformer substation.

The above is the brief introduction of the server of the Big Dipper clock, introduces and consults in more detailhttp://www.ruicheng-china.cn/



Contacts: Wei YuanDong
Telephone: 8602151816732
Fax: 86021-51816733
Email: 1339639788@qq.com
Web site: http://www.ruicheng-china.cn
Address: Shanghai circles in the air in the national Building of Scien-tech garden 1 of institute of technology of Shanghai of the road No. 128 of the Yin Dynasty

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