symmetricom 56000 Distribution Unit
发布时间：2008/10/28 9:30:49 修改时间：2008/10/28 9:30:49 浏览次数：1248


	产品编号：	122714475216
	产品名称：	symmetricom 56000 Distribution Unit
	规　　格：
	产品备注：
	产品类别：	GPS定位及时钟基准系统

产品说明

Symmetricom's 56000 is a versatile Data Rate Clock (DRC) and Distribution System supporting an extensive variety of input references, oscillators, output frequencies, input/output interface styles, powerful network based management tools, and complete power supply plans. The modular architecture supports various clock rates and frequencies required in today’s sophisticated communications applications.

The 56000 backplane can accept 1, or 10 MHz; IRIG B time code; and any TTL signal from DC to 10Mbps. Multiple redundant external frequency references can be applied to a hitless switch (passive combiner) located on each frequency synthesizer circuit card. The hitless switch provides a glitch-free transition from one input source to another, ensuring reliable and disturbance-free outputs, even in the event of failure of one of the input sources. The frequency reference inputs can be replaced or enhanced by an on-board oscillator circuit card or an on-board GPS timing receiver. The oscillators are disciplined to either the input frequency or GPS. Using the oscillators in combination with external reference inputs provides various levels of redundancy. The oscillators also add holdover capability so that uninterrupted operation is maintained in the event of total failure of the reference input(s).

Model 56000 outputs can include distributed or generated clock signals, frequencies, Network Time Protocol, and IRIG B time code. N.1 clock rate generation from 1Hz to 25MPPS in 1 PPS steps is available in addition to N.8 clock rate generation from 8 KPPS to 8.192 MPPS in 8KPPS steps. Also available is a Telecommunications Interface that provides a variety of outputs and alarms common in today’s telecommunications applications. The chassis is configured with front and rear plug-in cards. The front panel plug-in circuit cards perform the modular rate generation and distribution functions and are hot swappable. The rear panel interfaces are also implemented using plug-in cards with a wide variety of connector types and styles. Of the 21 card slots available, four are reserved for the power

企业介绍

欧桥电子科技发展有限公司是英国Universal Corporate Ltd. (UK)在中国的分公司，旗下包含上海欧桥电子、天津欧桥、杭州欧桥等多个分支机构，从事涵盖电子通信产品、仪器、工业及机电产品等不同领域的业务与技术服务。公司本着良好的信誉和出色的售后服… 更多>>

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衰减器(11)

联系方式

上海欧桥电子科技有限公司

联系人：瞿建

地址：上海市浦东新区康桥路1100号保康大厦1103室

邮编：201315

电话：021-58126804

传真：021-58126844

公司网址：http://www.ouqiao.com/

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