GPS時鐘裝置 "Times New Roman"">（GPS校時裝置,GPS mso-hansi-font-family:"Times New Roman"">網絡時鐘, "Times New Roman"">北斗時間服務器）是一款智能型的GPS "Times New Roman"">北斗基準時鐘源，其信號輸出為：脈沖信號（1PPS/M/H "Times New Roman"">，TTL、空接點、差分、24V/110V/220V有源、光）、時間報文（RS232 mso-hansi-font-family:"Times New Roman"">、RS422/485 "Times New Roman"">、光）、IRIG-B "Times New Roman"">信號（422、TTL mso-hansi-font-family:"Times New Roman"">、AC "Times New Roman"">、光）、DCF77 "Times New Roman"">信號、NTP/SNTP "Times New Roman"">協議網絡時鐘同步信號、PTP "Times New Roman"">（IEEE1588 "Times New Roman"">）協議信號、10MHz "Times New Roman"">頻率時間同步信號，可以滿足不同設備的對時接口要求。其性能可以廣泛地應用于對時基要求穩定和時基同步要求嚴格的各種領域, mso-hansi-font-family:"Times New Roman"">如通信、廣播電視、交通運輸、電力、國防、金融、IT mso-hansi-font-family:"Times New Roman"">等。

GPS時鐘裝置 "Times New Roman"">產品以GPS信號作為時間源，同時可選北斗衛星、IRIG-B mso-hansi-font-family:"Times New Roman"">碼、OCX0 "Times New Roman"">、銣原子鐘、CDMA "Times New Roman"">信號等時鐘源，對時精度達30nS "Times New Roman"">。該裝置采用了分布式結構、閉環控制、掉電保護、故障自診斷、故障隔離、軟硬件冗余、抗電氣電磁干擾、保護接地等技術措施。

"Times New Roman"">上海銳呈電氣有限公司是GPS "Times New Roman"">時鐘裝置專業提供商！

GPS時鐘裝置 "Times New Roman"">的特點

1．支持單GPS mso-hansi-font-family:"Times New Roman"">、單北斗、單CDMA "Times New Roman"">、雙GPS、雙北斗、 GPS/ mso-hansi-font-family:"Times New Roman"">北斗/CDMA "Times New Roman"">雙系統接收機配置, "Times New Roman"">實現多基準冗余授時，能夠智能判別GPS "Times New Roman"">信號、北斗信號、CDMA "Times New Roman"">信號、外部B碼時間基準信號的穩定性和優劣，并提供多種時間基準配置方法。

2．選件豐富：該產品可擴展多種接口輸出，1PPM mso-hansi-font-family:"Times New Roman"">、1PPH "Times New Roman"">、IRIG-B "Times New Roman"">、DCF77、NTP/SNTP、IEEE1588、E1 mso-hansi-font-family:"Times New Roman"">、周波鐘、工頻量等；接口數量可根據要求擴展，定制多路輸出，接口類型可選。

3．裝置采用全模塊化即插即用結構設計，支持板卡熱插拔，配置靈活，維護方便，同時為將來電廠/ mso-hansi-font-family:"Times New Roman"">變電站改造擴建時增加或更改對時信號接口提供了方便。

GPS時鐘裝置 "Times New Roman"">技術指標：

1、GPS mso-hansi-font-family:"Times New Roman"">接收器接收頻率：1575.42MHz "Times New Roman"">；接收靈敏度：捕獲〈-160dBW "Times New Roman"">，跟蹤〈-163dBW "Times New Roman"">；捕獲時間：裝置冷啟動時，〈3min "Times New Roman"">，裝置熱啟動時，〈15S "Times New Roman"">；內部電池類型：鋰電池，電池壽命：≮25000h "Times New Roman"">。

2、北斗接收器：通道：6 mso-hansi-font-family:"Times New Roman"">；接收靈敏度：-157.6dBW "Times New Roman"">；失鎖重捕時間：≤1 "Times New Roman"">秒；1PPS精度：優于100nS mso-hansi-font-family:"Times New Roman"">。

3、輸出頻率：　　　　　　　10MHz mso-hansi-font-family:"Times New Roman"">、1PPS

mso-hansi-font-family:"Times New Roman"">輸出電平：　　　　　　　1PPS "Times New Roman"">輸出方波TTL "Times New Roman"">電平

?? ?????????????????????10MHz "Times New Roman"">輸出正弦波12.5dBm

1PPS精度：?????????????????? "Times New Roman"">優于20nS

10MHz頻率精度：≤1.2 mso-hansi-font-family:"Times New Roman"">×10-12/24h "Times New Roman"">平均

mso-hansi-font-family:"Times New Roman"">諧波：-40dBc

mso-hansi-font-family:"Times New Roman"">雜散：-70dBc

4、對時精度：脈沖、B mso-hansi-font-family:"Times New Roman"">碼：0.1 "Times New Roman"">μS，串口：10 mso-hansi-font-family:"Times New Roman"">μS "Times New Roman"">，NTP/SNTP "Times New Roman"">：1-10ms "Times New Roman"">，PTP:70 ns "Times New Roman"">；

5、網口支持協議：NTP/SNTP ，ARP mso-hansi-font-family:"Times New Roman"">，UDP/ Time "Times New Roman"">，Telnet "Times New Roman"">， TFTP，SNMP mso-hansi-font-family:"Times New Roman"">，ICMP "Times New Roman"">，DHCP，MD5 mso-hansi-font-family:"Times New Roman"">，NTP V4 "Times New Roman"">，V3，V2 mso-hansi-font-family:"Times New Roman"">，V1 "Times New Roman"">，NTP SERVER "Times New Roman"">或NTP Client "Times New Roman"">可選擇。

6、平均無故障間隔時間(MTBF) mso-hansi-font-family:"Times New Roman"">≥300000 "Times New Roman"">小時；平均維修時間（MTTR "Times New Roman"">）：一般不大于30 "Times New Roman"">分，正常使用條件下無須維護。

7、物理及環境參數

?? "Times New Roman"">尺寸： 19英寸1U mso-hansi-font-family:"Times New Roman"">機架式機箱（根據接口數量可定制為2U mso-hansi-font-family:"Times New Roman"">、3U "Times New Roman"">機箱）

?? "Times New Roman"">重量： <3.8Kg

?? "Times New Roman"">電源： 220V "Times New Roman"">±20%? 47Hz mso-hansi-font-family:"Times New Roman"">～63Hz "Times New Roman"">功耗： <20W

?? "Times New Roman"">工作溫度：-10 "Times New Roman"">℃～ 50℃

?? "Times New Roman"">存貯溫度：-25 "Times New Roman"">℃～ 85℃

?? "Times New Roman"">濕度： 95％無冷凝

"Times New Roman"">以上是GPS "Times New Roman"">時鐘裝置的簡介，更詳細介紹請咨詢。