1756-A4K美国AB品牌

PLC器件的制造大国，全球的产品大都在中国和韩国生产。国内可生产光分路器企业有百家左右(包括外资企业)，具备生产及研发能力的有20家左右(从中国电信2010年PLC集采信息中，全国共有近百家企业参加集采投标)。目前各国都在大力推广FTTH、FTTx的工程，国内随着FTTx(光纤接入网)建设的深入开展，市场对于PLC分路器的需求明显大，PLC光分路器可能是下一步无源器件市场需求的重点。除了光器件专业厂加大开发和增加产能力度外，一些知名度较大的光纤光缆厂家也在这方面加大了投入力度，积极开发无源器件产品，同时还在增添生产设备，并将此作为技术和产品储备，以其有准备、有计划的占有市场，可见PLC光分路器在未来几年的市场上的重要性及各大光器件企业、光纤光缆企业对此项目的重视程度。但是国内尚未掌握芯片技术，只能外购芯片进行封装或做代工。

  我国PLC光分路器产业发展中也存在一定的问题。虽然市场需求很大，但产能的扩展及市场供大于求的潜在风险也在迅速加大。首先是由于制造成本压力越来越大，特别是只有耦合和封装后续工序的企业，PLC光分路器现在的价格与2008年初时相比，已经降了40%左右，而且目前PLC分路器相对比较成熟，随着大规模生产，价格和毛利率也将继续往下掉，市场整合趋势越发明显。第二国内厂商的同质化竞争，芯片、V型槽甚至FA全部依赖进口，成本压力非常大。如果公司规模较小，所要面临的成本压力反而会更大，因为材料来源主要采用外购，而成本与采购量成反比，而外购量小的话，外购价格也会相对较高，这个价格可以是20%到30%的差异。第三就是WDM-PON对PLC分路器的冲击，光纤接入技术除了我们经常提到的EPON和GPON，还有WDM-PON。下一代光纤接入技术的演进很可能是WDM-PON技术，而且欧美国家也更热衷于这项技术。但从技术原理上讲，现有的EPON的复用方式是功率分割型的，而WDM-PON则属于波分复用，也就是说，现有的PLC分路器不适用于WDM-PON技术，如果这个技术演进的过程较短，目前PLC分路器厂商将面临严重考验，设备和资金投入成本将难以收回。

PLC(光分路器)技术发展情况

      低成本、高可靠性是FTTH工程中对光分路器件的基本要求。光通信用光分路器从技术工艺上主要可以分为光纤熔融拉锥型和平面集成光波导型两种。

      光纤熔融拉锥技术是制作2´2光分路器Zui为成熟的技术，光分路器目前主要是以全光纤型光分路器为主，其主要特点是：技术成熟，与光纤的连接方便，插入损耗小。但随着功分路数的增加，如1×8以上的光功分路器体积大，效率低，成本高，而且分光均匀性较差。此外基于融熔拉锥技术的光纤光分路器通带等特性方面有很大局限性。

      PLC基于平面技术的集成光学器件。与传统的分立式器件不同他采用的是半导体工艺制作，能够把不同功用的光学元件集成到一块芯片上，是实现光电器件集成化、规模化、小型化的基础工艺技术。与熔融拉锥技术相比，平面波导技术具有性能稳定、成本低廉、适于规模化生产等显著特点。所以，今后在光纤到户系统中将不再使用光纤融熔拉锥光功分器件，而平面波导为高性能、低成本接入网用光器件的生产提供了一条有效的途径。

UniOP eTOP06C-0050 Touchscreen Display eTOP06C0050 Interface 24V DC EXOR 0.60 A

 

Bently Nevada 44461-07 Ctr Deck Assy 12 Slot Rack/Chassis PLC PWB49418-01 49418

 

Exide A53A2 Digital PLC 118 302 416 C Module Board 101072431 D EK184343

 

Bently Nevada 7200 Valve Positioner Indicator 7200-VP-R 72938-01-04-01-01-15 PLC

 

Square D PAF361600DCA680 1600 Amp DC Circuit Breaker PAL S4 PAF PAF361600 1600A

 

Telemecanique Size 2 Breaker MCC Bucket 20 Amp 5600 Gould 5640 MCCB A213D Sz2

 

ITE Siemens SMD69800ANGT 800 Amp Sentron Breaker 800A I-T-E Type SMD6 SMD69800

 

Bently Nevada 7200 Dual Valve Positioner Indicator 7200-VPR 72937-01-02-01-01-15

 

Exide A13A2 DCVI Control PLC 118 302 383 C Module Board 101072371 C 110071307 C

 

Bently Nevada Dual Valve Position Indicator 3300/70-XX-00 PLC PWA83980-01 78412

 

Bently Nevada Dual Valve Position Indicator 3300/70-01-00 PLC PWA83980-01 84136

 

Bently Nevada 7200 Dual Case Exp Ind DCE-R 72937-XX-XX-01-XX-XX PLC Indicator

 

Takenaka Barrier Relay System Type 3810-FM 2310 3810FM

 

Mitsubishi/Freqrol FR-A520-1.5K AC Inverter Drive A500

 

Siemens Sentron SHMD69800AH SHMD 800 Amp Sensitrip III LI SHMD69800 AH 3 3 PH

 

Wireless Technology Inc Remote Quad System Processor Model 8-256

 

Reliance Electric 45C400-A 45C400A 45C-400A AutoMate 40 Logic PLC 802820-106RC

 

Telemecanique Series 5600 Breaker Feeder MCC Bucket 15A

 

Bently Nevada 7200 EIPP 72975-03-03-01-01-01-01 PLC Eccentricity Monitor Module

 

Pepperl+Fuchs KHD2-SR-Ex2.P Switch Isolator KHD2SREx2.P

 

Allen Bradley 1321-3R35-B AC Line Reactor 13213R35B 3 PH 600V 0.8 mH 35A 162754

 

Allen Bradley 1321-3R55-B AC Line Reactor 13213R55B 3 PH 600V 0.5 mH 55A 162753

 

Allen Bradley 1321-3R55-C AC Line Reactor 13213R55C 3 PH 600V 0.85 mH 55A 166519

 

Bently Nevada 7200 DECI-R DIFF EXP COMP INP Monitor 72328-19-01-02-02-02-01-15

 

Trenco R023BTO AC Line Reactor 3 Phase 600V 23A R023BT0 TEC 3PH 600 V

 

Bently Nevada 7200 RA-R Rotor Acceleration Module PLC 72317 7200RAR Bentley 20mA

 

Furnas 14FF32AAA Size 2 Motor Contactor 120V & 240V Coil 45 Amp 600V 25 HP Sz2

 

Furnas 42IF32AF Definite Purpose Controller 120V Coil 600 Vac 150A Contactor

 

Furnas 42IB32AC-D8 Magnetic Controller 240V & 480V Coil 600 Vac 150A Contactor

 

Furnas 42HF35AFGH Definite Purpose Controller 120V Coil 600V 120A Contactor

 

Furnas 42IF35AF Definite Purpose Controller 120V Coil 600 Vac 150A Contactor

 

Furnas 14HF32AC Size 3 Motor Starter 240V & 480V Coil 90 Amp 600V 3Ph 50 HP Sz3

 

fireye Type EUVS4 Flame Amplifier Module PLC Monitor fireeye Allen Bradley AB

 

fireye Type E500-1 Communication Interface /w Cord PLC fireeye Allen Bradley AB

 

Bently Nevada 7200 TACH Digital Tachometer Module PLC 72750-03-01-15-00-02

 

Westinghouse HMCP015E0C 15 Amp Circuit Breaker Matte HMCP015 Cutler-Hammer 15A

 

Mitsubishi Breaker NF-SF3020 NF SF 20 Amp 20Amp 20A 480V

 

Bently Nevada 7200 DVF-R Vector Filter Monitor 72730-02-15-11-00-01 7200DVFR PLC

 

Siemens Tiastar Furnas System 89 Size 1 Starter 30A Fused 

Omron C500-ID218 Input Unit 3G2A5-ID218 C500ID218 PLC In

 

Square D I-Line FJA34100 100 Amp PowerPact Circuit Breaker 240/480V FJA 100A IAD

 

Siemens Tiastar Furnas System 89 Size 1 Starter 60A Fused 12" MCC MCCB Bucket

 

Square D I-Line FC24050BC 50 Amp Circuit Breaker 480V S3 Type FC FC24050 SqD 50A

 

Cutler-Hammer HMCP015E0C 15 Amp Circuit Breaker w/ Aux HMCP015 Westinghouse 15A

 

K-Unit KTS-4A-R 24V DC Signal Condition T/C Transmitter KUnit KTS4AR 24 VDC

 

ITE Siemens SMD69800ANGT 800 Amp Sentron Breaker 800A Type SMD6 SMD69800 damage

 

Siemens JXD63L400 JXD6-ETI 400 Amp A w/ 400A Trip breaker

 

Load Controls Incorporated PH-3A-HG 460V 4.2A 4-20ma Module Transducer CT PLC

 

MultiTrode Barrier Module MTISB 5 PLC Control MT1SB MTISB5 MT1SB5 FlyGT

 

Woodward 9905-001 M SPM-A Synchronizer 9905001 SPMA

Exide A53A3 Analog Board Microprocessor PLC 118 302 415 C Module Board 101072428

 

GE General Electric TFL236200WL 200 Amp Circuit Breaker 240/480/600V TFL 200A

 

Bently Nevada Dual Vibration XY/Gap Monitor 3300/16-05-01-01-00-00-00 PWA86739

 

Bently Nevada Dual Accelerometer Monitor 3300/25-01-03-03-00-00-01-00 PWA105513

 

Bently Nevada Dual Thrust Monitor 3300/20-03-01-01-00-00 PLC PWA135313-01 82362

 

Bently Nevada Dual Velocity Monitor 3300/55-01-04-02-02-00-00-05-01 PWA129958-02

 

Bently Nevada Dual Vibration XY/Gap Monitor 3300/16-03-01-01-00-00-00 PWA140720

 

Bently Nevada Dual Vibration XY/Gap Monitor 3300/16-05-01-00-00-00-00 PWA135305

 

Cutler Hammer Westinghouse 2100 100 Amp Reversing Size 4 Breaker MCC Bucket 100A

 

Exide A53A4 Diagnostic Microprocessor PLC 118 302 453 B Module Board 101072475

 

Westinghouse HMCP100R3C 100 Amp Circuit Breaker Matte 

Exide A13A8 HT Inv Gate Timing PLC 118 302 791 A Module Board 101072973 A

 

Exide A100-HT Charge Lim Cntl Bd. PLC 118 302 807 A Module Board 101072981 A

 

Square D I-Line FC24050BC 50 Amp Circuit Breaker 480V S3 Type FC FC24050 50A IAD

 

Toshiba C100A-E 100 Amp Magnetic Contactor 240V Coil 600 

Toshiba C-250E Size 5 Magnetic Contactor 270 Amp 120V Coil 

Toshiba C-180E Size 4 Magnetic Contactor 170 Amp 120V Coil 600 Vac 150 HP Sz4

 

Zenith RP550 Reverse Power Relay RP-550

 

Westinghouse JD3250KYD04 250 Amp Switch Breaker JD3250KY JD-K 250A Cutler-Hammer

 

Bently Nevada Dual Thrust Monitor 3300/20-03-01-00-00-00 PLC PWA135313-01 82362

 

Bently Nevada Differential Expansion Monitor 3300/45-XX-XX-01-00 PLC 82803-01

 

Bently Nevada Eccentricity Monitor 3300/40-03-01-01-00-00 PLC PWA88796-01 82924

 

Bently Nevada Dual Thrust Monitor 3300/20-05-01-00-00-00 PLC PWA79482-01 82362

 

Allen Bradley 4100 REC AB Resolver Encoder Converter 4100REC 36 VDC PLC Module

 

 

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