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广西证券电子商务系统方案建议书 V1.08-Guangxi Securities E-commerce System proposals V1.08

蓝海微芯ARM开发板底板原理图,采用s3c2410处理器-BlueOcean Chipscreen ARM development board backplane schematic diagram, using S3C2410 processor

华为 Quidway 系列多协议路由器，支持 PPP、FR、X25、SLIP、HDLC 等网络协议，用户可通过各种广域网线路接入 Internet 及互联互访。 路由器内置安全防火墙、NAT、RADIUS 安全认证，以及 CALL BACK 等多项互联安全防护功能；并通过 CA 认证协议的验证和 IPSec 隧道协议，在 Internet 上构建安全可靠的网络通道，基于硬件的数据加密，将保密数据加密后在隧道上传输，加密数据有可靠的保密性但牺牲了效率；非保密数据可以通过一般性安全处理在隧道上传输，保证较高的转发速率。硬件加密的算法采用专门的芯片（经过国家相关部门批准）进行加密，密钥长度大于 128 位，并提供高强度的一次一密功能。配合完全自主知识产权的软硬件平台，提供网络的安全互联和数据的安全传输的安全解决方案。 而 "备份中心"的可靠性备份解决方案，实现多种线路之间的任意备份和业务分担，为网络提供业界最坚固的保护屏障，保证网络的可靠运行。-Huawei Quidway series of multi-protocol routers to support PPP, FR, X25, SLIP, HDLC and other network protocols, users can through various WAN lines and Internet access to the Internet visits. Built-in security firewall router, NAT, RADIUS authentication, and a number of other CALL BACK Internet security protection functions; And through CA and validation of the agreement IPSec agreement on the Internet to establish a secure and reliable network access, hardware-based data encryption, data encryption confidentiality the tunnels on the Tunnel, a reliable data encryptio

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0809AD转换，实现电压模拟值到数字量的转换-0809AD conversion, realizing the value of the analog voltage digital conversion

LPC2300以太网连接原理图.用LPC23系列开发以太网必备.-LPC2300 Ethernet connectivity schematics. LPC23 series with the development of Ethernet required.

信号灯受一个启动开关控制，当启动开关接通时，系统开始正常工作，且先南北红灯亮，东西绿灯亮；当启动开关断开时，所有信号灯熄灭；南北绿灯和东西绿灯不能同时亮，如果同时亮则应报警后关闭信号灯系统。-To start signal by a switch control, when the start switch connected to the system started to work, and the first north-south red light, green things when the start switch off all lights extinguished north-south and east-west green light green light can not be at the same time, if At the same time, bright lights should be shut down after alarm system.

针对中小企业的一个信息化应用方案，一本实用的方案。-For SMEs in an Information Technology Application Program

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提出了一种基于FPGA的高阶高速F IR滤波器的设计与实现方法。通过一个169阶的均方根 升余弦滚降滤波器的设计,介绍了如何应用流水线技术来设计高阶高速F IR滤波器,并且对所设计的 FIR滤波器性能、资源占用进行了分析。-A high-level FPGA-based high-speed F IR filter design and implementation. Through a 169-order root mean square raised cosine filter roll-off design, describes how the application of technology to design high-end line of high-speed F IR filter, and for the design of FIR filter performance, resources to carry out an analysis of the occupier.