中国通信建设第二工程局有限公司贵州维护总站 China Telecom. Constrction 2nd Engineering Co.,Ltd Guizhou Branch - PowerPoint PPT Presentation

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中国通信建设第二工程局有限公司贵州维护总站 China Telecom. Constrction 2nd Engineering Co.,Ltd Guizhou Branch. 长途光缆线路维护技术培训. ------ 仪器仪表 OTDR 部分. 中国通信建设第二工程局有限公司 贵州维护总站 2010 年 3 月. 3. 3. 3. 3. 3. 1. 3. 2. 4. 5. 内容提要. OTDR 基本知识. OTDR 的相关介绍. OTDR 的工作原理.

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中国通信建设第二工程局有限公司贵州维护总站 China Telecom. Constrction 2nd Engineering Co.,Ltd Guizhou Branch

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China telecom constrction 2nd engineering co ltd guizhou branch

China Telecom. Constrction 2nd Engineering Co.,Ltd Guizhou Branch

------OTDR

20103


China telecom constrction 2nd engineering co ltd guizhou branch

3

3

3

3

3

1

3

2

4

5

OTDR

OTDR

OTDR

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • OTDR

  • 1

  • 2

  • OTDR

  • OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • OTDR

    • AC/DC

    • OTDR

  • OTDR

  • OTDRG.652OTDR

    • 1

  • A1550nm 1550nm,


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • B

  • C 3us 10us

  • D 140km 260km

  • 1.4

  • E

  • F12S 51012

    • 2

  • A

  • B


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • C 0.10dB/km 0.10dB/km

  • D

  • E

  • F

  • G

  • H

  • I

    • 3

  • A1550nm SM

  • B1.468

  • C81


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • AC/DC

  • 95%

  • 2/

  • MTS

  • 25

  • MTS30

  • 10

  • 11

  • 12

  • 13


China telecom constrction 2nd engineering co ltd guizhou branch

3

3

3

3

3

1

3

2

4

5

OTDR

OTDR

OTDR

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • OTDR

  • AgilentANRITSUEXFOWAVETEK

  • 41AV6411 OTDR)

  • 40/39dB:

  • 1310nmL40/0.35=114KM

  • 1550nmL39/0.25=156KM

  • OTDR(

  • 1

  • 2

  • 3CPU


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

3

3

3

3

3

1

3

2

4

5

OTDR

OTDR

OTDR

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • OTDR

  • OTDR

  • OTDR100


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

OTDROTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • Rayleigh Backscatter()

  • =5Log(P0WS)-10ax(loge)

  • P0:

  • W

  • S/

  • a/

  • 1=8.686dB

  • x

  • 4


China telecom constrction 2nd engineering co ltd guizhou branch

3

3

3

3

3

1

3

2

4

5

OTDR

OTDR

OTDR

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • 0.08dB

1

2

3


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

1

0.08dB

0.05dB

2

OTDR

3

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

4/

1.52.0

5

OTDROTDROTDR

8//

=0.25

0.258/300000000/s/1.4681100ns


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

6

OTDR

SM():1550nm1.4681001310nm1.467500

MM1300nm1.487000850nm1.496000

7

OTDR

SM1550nm83.0dB1310nm80.0dB

MM ()1300nm74.0dB850nm67.0dB


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

  • 8

  • OTDROTDROTDROTDR

  • 23


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

1

2

3

4

5

6

7

8

9


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

1


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

2


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

3


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

4


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

5


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

6

1 2 3


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

7


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

8


China telecom constrction 2nd engineering co ltd guizhou branch

OTDR

9


China telecom constrction 2nd engineering co ltd guizhou branch

3

3

3

3

3

1

3

2

4

5

OTDR

OTDR

OTDR

OTDR


China telecom constrction 2nd engineering co ltd guizhou branch

1.:

2.

OTDR()

()


China telecom constrction 2nd engineering co ltd guizhou branch

  • 1. OTDROTDR() OTDR()OTDR()


China telecom constrction 2nd engineering co ltd guizhou branch

  • (1) La=(S1-S2)/(1+P) La;S1;S20.6-1.2;PP=(Sa-Sb)/SbSa;Sb:3-5 :10-15 (2) Ly=LbLa :Ly;Lb+- Ly


China telecom constrction 2nd engineering co ltd guizhou branch

  • 2OTDR()

  • 3OTDR()


China telecom constrction 2nd engineering co ltd guizhou branch

  • 4OTDR500m OTDR20km


China telecom constrction 2nd engineering co ltd guizhou branch

1.

2.

3.

4.

5.


China telecom constrction 2nd engineering co ltd guizhou branch

1

OTDROTDRMW9076B1m310E-5,,,,,

2

OTDROTDROTDR


China telecom constrction 2nd engineering co ltd guizhou branch

3

0.01dB

4


China telecom constrction 2nd engineering co ltd guizhou branch

5

A

BOTDR

C

D


China telecom constrction 2nd engineering co ltd guizhou branch

11OTDROTDR 2OTDR 3OTDR25/1


China telecom constrction 2nd engineering co ltd guizhou branch

2SODF


China telecom constrction 2nd engineering co ltd guizhou branch

3OTDRLL = L1L2/1+PL3L4L5 1+aL1OTDRL2L3L4L5a0.5%0.7%1%PPPRh


China telecom constrction 2nd engineering co ltd guizhou branch

4

5


China telecom constrction 2nd engineering co ltd guizhou branch

1. 005

OTDR

LSA/2PA


China telecom constrction 2nd engineering co ltd guizhou branch

  • LSA


China telecom constrction 2nd engineering co ltd guizhou branch

2PA)


China telecom constrction 2nd engineering co ltd guizhou branch

LSA2PA

  • LSA


China telecom constrction 2nd engineering co ltd guizhou branch

2PA


China telecom constrction 2nd engineering co ltd guizhou branch


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