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上架日期： 2018年11月13日浏览量： 421次

IC660EBD025

产品价格：￥888（人民币）

规格：IC660EBD025

发货地：福建厦门

品牌：

最小起订量：1个

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厦门光沃自动化设备有限公司

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认证类型：企业认证

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认证信息：厦门光沃自动化设备有限公司

商铺名称：厦门光沃自动化设备有限公司

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企业邮箱：1878187406@qq.com

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商品详情

IC660EBD025

单工形式一般用在只向一个方向传送数据的场合。如计算机与打印机之间的通信是单工形式，因为只有计算机向打印机传送数据，而没有相反的数据传送。还有在某些通信信道中，如单工无线发送等。

2．半双工形式：RS-485

半双工通信使用同一根传输线，即可发送数据又可接收数据，但不能同时发送和接收。在任何时刻只能由其中的一方发送数据，另一方接收数据。因此半双工形式即可以使用一条数据线，也可以使用两条数据线，如图４所示。

半双工通信中每端需有一个收/发切换电子开关，通过切换来决定数据向哪个方向传输。因为有切换，所以会产生时间延迟，信息传输效率低些。但是对于像打印机这样单方向传输的外围设备，用半双工方式就能满足要求了，不必采用全双工方式，可省一根传输线。

波仕电子的RS-232/RS-485转换器使用了独特的零延时自动收发转换技术，直接从RS-485信号中用硬件方法提取收发切换控制信号，并且具备零延时的性能。零延时指收发切换过程转变时间为0，在使用时与RS-232通信一样。

3．全双工形式：RS-232、RS-422

全双工数据通信分别由两根可以在两个不同的站点同时发送和接收的传输线进行传送，通信双方都能在同一时刻进行发送和接收操作，如图５所示。

在全双工方式中，每一端都有发送器和接收器，有两条传送线，可在交互式应用和远程监控系统中使用，信息传输效率较高。

三异步传输与同步传输

串行传输中，数据是一位一位按照到达的顺序依次传输的，每位数据的发送和接收都需要时钟来控制。发送端通过发送时钟确定数据位的开始和结束，接收端需要在适当的时间间隔对数据流进行采样来正确的识别数据。接收端和发送端必须保持步调一致，否则数据传输就会出现差错。为了解决以上问题，串行传输可采用以下两种方法：异步传输和同步传输。

AMD Opteron DC Processor 8222 3.0GHZ OSA8222GAA6CY

Dell T710 Intel Xeon E5640 2.66GHZ CPU Kit T710 E5640

Dell T410 Intel Xeon E5640 2.66GHZ CPU Kit T410 E5640

Dell PowerEdge M610 Intel Xeon E5640 2.66GHZ CPU Kit

Dell R610 Intel Xeon E5640 2.66GHZ CPU Kit R610 E5640

HP DL160 G6 Intel Xeon E5640 2.66GHZ CPU Kit 589715-B21

HP Z600 / Z800 Intel Xeon E5640 2.66GHZ CPU Kit WG730AA

AMD Opteron QC Processor 2356 2.3GHZ OS2356WAL4BGD

Dell R710 Intel Xeon L5640 2.26GHZ CPU Kit R710 L5640

Dell T710 Intel Xeon L5640 2.26GHZ CPU Kit T710 L5640

Dell R510 Intel Xeon L5640 2.26GHZ CPU Kit R510 L5640

AMD Opteron QC Processor 2384 2.7GHZ OS2384WAL4DGI

Dell R410 Intel Xeon L5640 2.26GHZ CPU Kit R410 L5640

Dell M710 Intel Xeon L5640 2.26GHZ CPU Kit M710 L5640

Dell PowerEdge M610 Intel Xeon L5640 2.26GHZ CPU Kit

Dell T410 Intel Xeon L5640 2.26GHZ CPU Kit T410 L5640

Dell R610 Intel Xeon L5640 2.26GHZ CPU Kit R610 L5640

Intel Xeon Quad Core Processor X3320 2.50GHZ SLAWF

Intel Xeon Quad Core Processor X3450 2.66GHZ SLBLD

Dell T710 Intel Xeon X5677 3.46GHZ CPU Kit T710 X5677

Dell R710 Intel Xeon X5677 3.46GHZ CPU Kit R710 X5677

Intel Xeon Quad Core Processor X3430 2.40GHZ SLBLJ

Compaq Redundant VRM PL80/85 12V 48W 312257-001

WD 300GB 10K RPM SATA 2.5 Inch Hard Drive WD3000BLFS

Intel Xeon Quad Core Processor E5640 2.66GHZ SLBVC

Intel Xeon 6 Core Processor L5640 2.26GHZ SLBV8

HP Compaq Genuine 105 Watt VRM for XW6000 332497-001

Dell M610 Intel Xeon L5530 2.40GHZ CPU Kit M610 L5530

Dell T710 Intel Xeon L5530 2.40GHZ CPU Kit T710 L5530

HP DL360 G5 Intel Xeon L5530 2.40GHZ CPU Kit 583379-B21

Dell R510 Intel Xeon L5530 2.40GHZ CPU Kit R510 L5530

HP Compaq Proliant 40W VRM 327660-001

HP Compaq Proliant 40W VRM 327660-001

HP Compaq VRM 75W 60A LTN for Evo W8000 239327-001

HP Compaq VRM 40W for DDL360-G2L 237553-001

Dell R710 Intel Xeon L5530 2.40GHZ CPU Kit R710 L5530

Dell R410 Intel Xeon L5530 2.40GHZ CPU Kit R410 L5530

Dell M710 Intel Xeon L5530 2.40GHZ CPU Kit M710 L5530

HP Compaq VRM 40W for DDL360-G2L 237553-001

Dell R610 Intel Xeon L5530 2.40GHZ CPU Kit R610 L5530

HP Compaq Proliant 1850 3000 5500 VRM 329267-001

VXI Electronics VRM Pentium III XEON 073-20740-20

HP VRM for HP DL585 DL385 G1 383337-001

IBM 95P3681/95P3933 400/800GB Ultrium LTO-3 SCSI LVD HH

DELL NP052 400/800GB Ultrium LTO-3 SCSI LVD HH Internal

HP Proliant BL460c Dual Xeon E5345 2.33GHZ 4GB RAM

HP Proliant BL460c Xeon E5345 2.33GHZ 4GB RAM 1X146GB

HP COMPAQ Smart Array 431 SCSI Controller 143886-001

Dell Drac II Remote Access Card 743NE

Dell Perc3 Quad Channel Raid Controller 9M905

Dell M1000e 2 x M710 Dual Xeon X5670 32GB RAM 4x300GB

Dell M1000e 2 x M710 Dual Xeon X5670 64GB RAM 4x300GB

Dell M1000e 2 x M710 Dual Xeon X5670 96GB RAM 4x300GB

Dell M1000e 2 x M710 Dual Xeon X5670 144GB RAM 4x300GB

Dell M1000e 2 x M710 Dual Xeon X5670 32GB RAM 2x146GB

Dell M1000e 2 x M710 Dual Xeon X5670 64GB RAM 2x146GB

HP Compaq SmartArray 2DH PCI RAID Controller 295243-001

Dell M1000e 2 x M710 Dual Xeon X5670 96GB RAM 2x146GB

Dell M1000e 2 x M710 Dual Xeon X5670 144GB RAM 2x146GB

Dell M1000e 2 x M710 Dual Xeon X5670 32GB RAM 4x146GB

Dell M1000e 2 x M710 Dual Xeon X5670 64GB RAM 4x146GB

Dell M1000e 2 x M710 Dual Xeon X5670 96GB RAM 4x146GB

Dell M1000e 2 x M710 Dual Xeon X5670 144GB RAM 4x146GB

HP Compaq Smart Array 3200 PCI SCSI Raid 340855-001

HP VRM For Proliant DL380 ML370 G4 347884-001

HP VRM For Proliant DL380 ML350 ML370 G4 347884-001

Dell M1000e 4 x M710 Dual Xeon X5670 32GB RAM 2x300GB

Dell M1000e 4 x M710 Dual Xeon X5670 64GB RAM 2x300GB

ACULAB AC6191_152 PCI Card With AC6132 PM4-T1

Dell M1000e 4 x M710 Dual Xeon X5670 96GB RAM 2x300GB

Dell M1000e 4 x M710 Dual Xeon X5670 144GB RAM 2x300GB

Dell M1000e 4 x M710 Dual Xeon X5670 32GB RAM 4x300GB

Dell M1000e 4 x M710 Dual Xeon X5670 64GB RAM 4x300GB

Dell M1000e 4 x M710 Dual Xeon X5670 96GB RAM 4x300GB

Dell M1000e 4 x M710 Dual Xeon X5670 144GB RAM 4x300GB

HP Compaq NETRAID 3 SI PCI Array Card D5955

Dell PowerEdge M1000e M610x16 1x E5520 Blade Enclosure

DellPowerEdge M1000e M610x16 2x E5520 Blade Enclosure

IBM HS22 Intel Xeon X5680 3.33GHZ CPU Kit 59Y5713

HP SL170Z G6 Intel Xeon X5680 3.33GHZ Kit 592019-B21

Dell PowerEdge M1000e M610x16 2x X5550 Blade Enclosure

Dell M710 24GB Memory Kit DDR3 PC3-10600R RAM (6 X 4GB)

DELL R610 24GB Memory Kit DDR3 PC3-10600R RAM (6 X 4GB)

Dell M1000e 4 x M710 Dual Xeon X5670 32GB RAM 2x146GB

Dell M1000e 4 x M710 Dual Xeon X5670 64GB RAM 2x146GB

Dell M1000e 4 x M710 Dual Xeon X5670 96GB RAM 2x146GB

Dell M1000e 4 x M710 Dual Xeon X5670 144GB RAM 2x146GB

Dell M1000e 4 x M710 Dual Xeon X5670 32GB RAM 4x146GB

Dell M1000e 4 x M710 Dual Xeon X5670 64GB RAM 4x146GB

Dell M1000e 4 x M710 Dual Xeon X5670 96GB RAM 4x146GB

Dell M1000e 4 x M710 Dual Xeon X5670 144GB RAM 4x146GB

Dell R710 36GB Memory Kit DDR3 PC3-8500R RAM (9 X 4GB)

Dell M710 36GB Memory Kit DDR3 PC3-8500R RAM (9 X 4GB)

Dell T710 36GB Memory Kit DDR3 PC3-8500R RAM (9 X 4GB)

Dell M710 36GB Memory Kit DDR3 PC3-8500R RAM (9 X 4GB)

Dell R710 36GB Memory Kit DDR3 PC3-10600R RAM (9 X 4GB)

Dell T710 36GB Memory Kit DDR3 PC3-10600R RAM (9 X 4GB)

Dell M610 40GB Memory Kit DDR3 PC3-8500R RAM (10 X 4GB)

Dell R710 40GB Memory Kit DDR3 PC3-8500R RAM (10 X 4GB)

Dell M710 40GB Memory Kit DDR3 PC3-8500R RAM (10 X 4GB)

DELL T710 40GB Memory Kit DDR3 PC3-8500R RAM (10 X 4GB)

DELL T610 40GB Memory Kit DDR3 PC3-8500R RAM (10 X 4GB)

DELL R610 40GB Memory Kit DDR3 PC3-8500R RAM (10 X 4GB)

Dell M1000e 8 x M710 Dual Xeon X5670 32GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 64GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 96GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 144GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 32GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 64GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 96GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 144GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5670 32GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5670 64GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5670 96GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5670 144GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5670 32GB RAM 4x146GB

Dell M1000e 8 x M710 Dual Xeon X5670 64GB RAM 4x146GB

Dell M1000e 8 x M710 Dual Xeon X5670 96GB RAM 4x146GB

Dell M1000e 8 x M710 Dual Xeon X5670 144GB RAM 4x146GB

DELL M610 48GB Memory Kit DDR3 PC3-8500R RAM (12 X 4GB)

Dell R710 48GB Memory Kit DDR3 PC3-8500R RAM (12 X 4GB)

Dell M710 48GB Memory Kit DDR3 PC3-8500R RAM (12 X 4GB)

Dell T710 48GB Memory Kit DDR3 PC3-8500R RAM (12 X 4GB)

Dell T610 48GB Memory Kit DDR3 PC3-8500R RAM (12 X 4GB)

Dell R610 48GB Memory Kit DDR3 PC3-8500R RAM (12 X 4GB)

Dell R410 48GB Memory Kit DDR3 PC3-8500R RAM (12 X 4GB)

Dell R710 56GB Memory Kit DDR3 PC3-8500R RAM (14 X 4GB)

Dell M710 56GB Memory Kit DDR3 PC3-8500R RAM (14 X 4GB)

Dell T710 56GB Memory Kit DDR3 PC3-8500R RAM (14 X 4GB)

Dell R710 64GB Memory Kit DDR3 PC3-10600R RAM (16x4GB)

Dell M710 64GB Memory Kit DDR3 PC3-10600R RAM (16x4GB)

Dell T710 64GB Memory Kit DDR3 PC3-10600R RAM (16x4GB)

Dell M710 72GB Memory Kit DDR3 PC3-10600R RAM (18x4GB)

Dell T710 72GB Memory Kit DDR3 PC3-10600R RAM (18x4GB)

Dell R710 72GB Memory Kit DDR3 PC3-10600R RAM (18x4GB)

Dell R410 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell M610 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell T410 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell R710 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell M710 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell R510 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell T710 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell T610 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell R610 8GB Memory Kit DDR3 PC3-8500R RAM (2 X 8GB)

Dell R410 32GB Memory Kit DDR3 PC3-8500R RAM (4 X 8GB)

Dell T710 32GB Memory Kit DDR3 PC3-8500R RAM (4 X 8GB)

Dell R710 40GB Memory Kit DDR3 PC3-8500R RAM (5 X 8GB)

Dell M710 40GB Memory Kit DDR3 PC3-8500R RAM (5 X 8GB)

Dell M610 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell T410 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell R710 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell M710 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell R510 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell T710 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell T610 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell R610 48GB Memory Kit DDR3 PC3-8500R RAM (6 X 8GB)

Dell R410 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell M610 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell T410 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell R710 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell M710 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell R510 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell T710 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell T610 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell R610 64GB Memory Kit DDR3 PC3-8500R RAM (8 X 8GB)

Dell R710 80GB Memory Kit DDR3 PC3-8500R RAM (10 X 8GB)

Dell M610 80GB Memory Kit DDR3 PC3-8500R RAM (10 X 8GB)

Dell M710 80GB Memory Kit DDR3 PC3-8500R RAM (10 X 8GB)

Dell T710 80GB Memory Kit DDR3 PC3-8500R RAM (10 X 8GB)

Dell T610 80GB Memory Kit DDR3 PC3-8500R RAM (10 X 8GB)

Dell R610 80GB Memory Kit DDR3 PC3-8500R RAM (10 X 8GB)

Dell M610 96GB Memory Kit DDR3 PC3-8500R RAM (12 X 8GB)

Dell R710 96GB Memory Kit DDR3 PC3-8500R RAM (12 X 8GB)

Dell T710 96GB Memory Kit DDR3 PC3-8500R RAM (12 X 8GB)

Dell M710 96GB Memory Kit DDR3 PC3-8500R RAM (12 X 8GB)

Dell T610 96GB Memory Kit DDR3 PC3-8500R RAM (12 X 8GB)

Dell R610 96GB Memory Kit DDR3 PC3-8500R RAM (12 X 8GB)

Dell R710 112GB Memory Kit DDR3 PC3-8500R RAM (14x8GB)

Dell M1000e 8 x M710 Dual Xeon X5650 32GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 64GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 96GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 144GB RAM 2x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 32GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 64GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 96GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 144GB RAM 4x300GB

Dell M1000e 8 x M710 Dual Xeon X5650 32GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5650 64GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5650 96GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5650 144GB RAM 2x146GB

Dell M1000e 8 x M710 Dual Xeon X5650 32GB RAM 4x146GB

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