IC660EBD025-工控行業(yè)信息網(wǎng)(chinagkong.com)-工控行業(yè)門戶網(wǎng)站

產(chǎn)品簡介

IC660EBD025

產(chǎn)品價格：￥888

上架日期：2018-11-13 10:42:05

產(chǎn)地：美國

發(fā)貨地：福建廈門

供應(yīng)數(shù)量：不限

最少起訂：1個

瀏覽量：421

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詳細(xì)說明

IC660EBD025

單工形式一般用在只向一個方向傳送數(shù)據(jù)的場合。如計算機(jī)與打印機(jī)之間的通信是單工形式，因?yàn)橹挥杏嬎銠C(jī)向打印機(jī)傳送數(shù)據(jù)，而沒有相反的數(shù)據(jù)傳送。還有在某些通信信道中，如單工無線發(fā)送等。

2．半雙工形式：RS-485

半雙工通信使用同一根傳輸線，即可發(fā)送數(shù)據(jù)又可接收數(shù)據(jù)，但不能同時發(fā)送和接收。在任何時刻只能由其中的一方發(fā)送數(shù)據(jù)，另一方接收數(shù)據(jù)。因此半雙工形式即可以使用一條數(shù)據(jù)線，也可以使用兩條數(shù)據(jù)線，如圖４所示。

半雙工通信中每端需有一個收/發(fā)切換電子開關(guān)，通過切換來決定數(shù)據(jù)向哪個方向傳輸。因?yàn)橛星袚Q，所以會產(chǎn)生時間延遲，信息傳輸效率低些。但是對于像打印機(jī)這樣單方向傳輸?shù)耐鈬O(shè)備，用半雙工方式就能滿足要求了，不必采用全雙工方式，可省一根傳輸線。

波仕電子的RS-232/RS-485轉(zhuǎn)換器使用了獨(dú)特的零延時自動收發(fā)轉(zhuǎn)換技術(shù)，直接從RS-485信號中用硬件方法提取收發(fā)切換控制信號，并且具備零延時的性能。零延時指收發(fā)切換過程轉(zhuǎn)變時間為0，在使用時與RS-232通信一樣。

3．全雙工形式：RS-232、RS-422

全雙工數(shù)據(jù)通信分別由兩根可以在兩個不同的站點(diǎn)同時發(fā)送和接收的傳輸線進(jìn)行傳送，通信雙方都能在同一時刻進(jìn)行發(fā)送和接收操作，如圖５所示。

在全雙工方式中，每一端都有發(fā)送器和接收器，有兩條傳送線，可在交互式應(yīng)用和遠(yuǎn)程監(jiān)控系統(tǒng)中使用，信息傳輸效率較高。

三異步傳輸與同步傳輸

串行傳輸中，數(shù)據(jù)是一位一位按照到達(dá)的順序依次傳輸?shù)?，每位?shù)據(jù)的發(fā)送和接收都需要時鐘來控制。發(fā)送端通過發(fā)送時鐘確定數(shù)據(jù)位的開始和結(jié)束，接收端需要在適當(dāng)?shù)臅r間間隔對數(shù)據(jù)流進(jìn)行采樣來正確的識別數(shù)據(jù)。接收端和發(fā)送端必須保持步調(diào)一致，否則數(shù)據(jù)傳輸就會出現(xiàn)差錯。為了解決以上問題，串行傳輸可采用以下兩種方法：異步傳輸和同步傳輸。

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AMD Opteron QC Processor 2384 2.7GHZ OS2384WAL4DGI

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Dell R610 Inb Xeon L5640 2.26GHZ CPU Kit R610 L5640

Inb Xeon Quad Core Processor X3320 2.50GHZ SLAWF

Inb Xeon Quad Core Processor X3450 2.66GHZ SLBLD

Dell T710 Inb Xeon X5677 3.46GHZ CPU Kit T710 X5677

Dell R710 Inb Xeon X5677 3.46GHZ CPU Kit R710 X5677

Inb 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

Inb Xeon Quad Core Processor E5640 2.66GHZ SLBVC

Inb Xeon 6 Core Processor L5640 2.26GHZ SLBV8

HP Compaq Genuine 105 Watt VRM for XW6000 332497-001

Dell M610 Inb Xeon L5530 2.40GHZ CPU Kit M610 L5530

Dell T710 Inb Xeon L5530 2.40GHZ CPU Kit T710 L5530

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

Dell R510 Inb 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 Inb Xeon L5530 2.40GHZ CPU Kit R710 L5530

Dell R410 Inb Xeon L5530 2.40GHZ CPU Kit R410 L5530

Dell M710 Inb Xeon L5530 2.40GHZ CPU Kit M710 L5530

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

Dell R610 Inb 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

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HP Compaq NETRAID 3 SI PCI Array Card D5955

Dell PowerEdge M1000e M610x16 1x E5520 Blade Enclosure

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IBM HS22 Inb Xeon X5680 3.33GHZ CPU Kit 59Y5713

HP SL170Z G6 Inb 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)

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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

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

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

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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)

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

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

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

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

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

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

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

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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)

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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)

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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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