力士乐VT-3002-20/32

力士乐VT-3002-20/32

力士乐VT-3002-20/32

IEEE802.3z工作组负责制定光纤（单模或多模）和同轴电缆的全双工链路标准。IEEE802.3z定义了基于光纤和短距离铜缆的1000Base-X，采用8B/10B编码技术，信道传输速度为1.25Gbit/s，去耦后实现1000Mbit/s传输速度。IEEE802.3*有下列千兆以太网标准：

· 1000Base-SX 只支持多模光纤，可以采用直径为62.5um或50um的多模光纤，工作波长为770-860nm，传输距离为220-550m。

· 1000Base-LX 单模光纤：可以支持直径为9um或10um的单模光纤，工作波长范围为1270-1355nm，传输距离为5km左右。

现货*，*  
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· 1000Base-CX 采用150欧屏蔽双绞线（STP），传输距离为25m。

⒉ IEEE802.3ab

IEEE802.3ab工作组负责制定基于UTP的半双工链路的千兆以太网标准，产生IEEE802.3ab标准及协议。IEEE802.3ab定义基于5类UTP的1000Base-T标准，其目的是在5类UTP上以1000Mbit/s速率传输100m。IEEE802.3ab标准的意义主要有两点：

总线型拓扑结构图

所需的电缆较少、价格便宜、管理成本高，不易隔离故障点、采用共享的访问机制，易造成网络拥塞。早期以太网多使用总线型的拓扑结构，采用同轴缆作为传输介质，连接简单，通常在小规模的网络中不需要的网络设备，但由于它存在的固有缺陷，已经逐渐被以集线器和交换机为核心的星型网络所代替。

星型

管理方便、容易扩展、需要的网络设备作为网络的核心节点、需要更多的网线、对核心设备的可靠性要求高。采用的网络设备（如集线器或交换机）作为核心节点，通过双绞线将局域网中的各台主机连接到核心节点上，这就形成了星型结构。星型网络虽然需要的线缆比总线型多，但布线和连接器比总线型的要便宜。此外，星型拓扑可以通过级联的方式很方便的将网络扩展到很大的规模，因此得到了广泛的应用，被绝大部分的以太网所采用。

ADAPT ELEKTRONIK SYSTEM TEST ADAPTER 10-1-L-PR
 
EMECANIQUE CONTROL RELAY CA3 DN40 *LOT OF 2*
 
MITSUBISHI INVERTER VARIABLE FRQUENCY DRIVE 400V CLASS FR-S540E-0.75K-?NA
 
ACME ELECTRIC CORP. 50/60HZ 1000VA INDUSTRIAL CONTROL TRANSFORMER TA-1-81217
 
GENERAL ELECTRIC 110-280V SURGE SUPPRESSOR RELAY CR4XS1B
 
EMECANIQUE LA4 DC3U CONTACTOR RELAY SUPPRESSOR, LOT OF 6, NIB
 
TPC * 3 POLE M/F PLUG 6 FT CORD LEAD * 94158
 
PEPPERL + FUCHS 8VDC MAGNETIC FIELD SENSOR MJ60-12GM-1N
 
TURCK INDUCTIVE PROXIMITY SENSOR BI20U-CA40-AP6X?2-H1141/S1590W/?BS2.1
 
FOXBORO TEMPATURE TRANSMITTER RTT20-D1SN0FD-M?2L1
 
SONY SRX4-POWER SERVO BOARD 1-637-877-12
 
ALLEN BRADLEY SHIELDED MOTOR POWER CABLE ASSEMBLY 1326-CPB1-E-005 *NEW*
 
HAMMOND MANUFACUTRING JUNCTION BOX EJ12126 *NEW*
 
KOOLANT KOOLERS SENSO AND CABLE, 4801205 *NEW*
 
AMP * CABLE * 553577-3
 
REESE EMERGENCY STOP PUSHBUTTON 04932-032 *NEW*
 
WIREMOLD SWITCH AND RECEPTACLE BOX, 5741 *NEW*
 
ALLEN BRADLEY CABLE ASSEMBLY 610936-02 *NEW*
 
YASKAWA ELECTRIC * CONTROL RACK * JZNC-XRK01
 
ALLEN BRADLEY FULL VOLTAGE MODULE NIB 800E-3X01 SER. A
 
HONEYWELL MICRO SWITCH PK 8100 5
 
ADVANCE 120V, 0.49A, 60Hz, ELECTRONIC BALLAST REL2P32SC *NEW,SEALED*
 
RELIANCE ELECTRIC MEMCOR 15OHMS RESISTOR 63481-6G
 
RELCON PCB CIRCUIT BOARD R15-2-9
 
SIEMENS 30A 600VAC TYPE 1 ENCLOSED SWITCH SER.A, DAMAGED F351
 
TURCK UPROX 4-PIN PROXIMITY SENSOR Bi6U-EM18H-AN6X?-H1141
 
APPLETON * 2" COVER PLATE * -
 
CUTLER-HAMMER 110/120VAC COIL 27A SIZE 1 STARTER AN16DN0 SER. B1
 
MENNEKES MALE RECEPTACLE 32A-6H 200/346V
 
LITFUSE 4A 250VAC SLO BLO FUSE FLNR-4 *NEW, BOX OF 10*
 
REES 1/2"NPT LIMIT SWITCH 01752-100
 
MEAN WELL S-150-24 POWER SUPPLY
 
ABB CIRCUIT BREAKER 3 POLE UNIT ME790501
 
GENERAL ELECTRIC 3P 30A QMW SWITCH 565B714G42
 
MAC 1/8"NPT, 120V/60HZ, 110V/50HZ SOLENOID VALVE 35A-AAA-DAAJ-1K?D MOD 416G *NEW*
 
ALLEN BRADLEY SIZE 1 STARTER 120V COIL 509-BOB SER. B
 
RELCON INDICAITOR CONTROLLER BOARD R15-2-12 RVR
 
JAMESBURY 3" VALVE W/ ACTUATOR VPVL350DABC
 
BUSS * FUSE HOLDER * BM6032S0
 
I-T-E 1-POLE 30A 125VDC 277VAC CIRCUIT BREAKER E41B030
 
OMRON PROXIMTY SWITCH TL-X10Y2
 
SQUARE D 30A 120/240VAC SAFETY SWITCH SER.E1 D211N
 
T&B / RUSSELLSTOLL 10A 600VAC, 20A 250VAC RECEPTICAL WITH CASKET *NEW*
 
EMECANIQUE 110/120V INDUCTIVE PROXIMITY SENSOR, XSA-V01151 *NEW*
 
THOMAS & BETTS 250/480VAC 100A RECEPTACLE, 8424-72 *NEW*
 
GE MOTOR RUN CAPACITOR 21L3420FB NEW IN BOX
 
BANNER 120VAC, 200VDC-200MA, 3/4 WIRE AC POWER BLOCK MODULE PBAT 16386 *NEW*
 
BRAD HARRISON MICRO CHANGE 803000S20M020

    
EMECANIQUE 110/120V INDUCTIVE PROXIMITY SENSOR, XSA-V01151 *NEW*
 
THOMAS & BETTS 250/480VAC 100A RECEPTACLE, 8424-72 *NEW*
 
GE MOTOR RUN CAPACITOR 21L3420FB NEW IN BOX
 
BANNER 120VAC, 200VDC-200MA, 3/4 WIRE AC POWER BLOCK MODULE PBAT 16386 *NEW*
 
BRAD HARRISON MICRO CHANGE 803000S20M020
 
WESTINGHOUSE 110VAC COIL SIZE 1 27A STARTER A201K1CA
 
MANNESMANN DEMAG DO5-B8-0-1 GEARBOX REDUCER
 
INSERTION PROBE 6" SS C5000
 
IFM EFECTOR 100 10-36VDC INDUCTIVE PROXIMITY SENSOR, IM5097 *NEW*
 
ACME 24VDC 2.5A REGULATED LINEAR POWER SUPPLY SPS-602428 *NEW*
 
ALLEN BRADLEY * SHALLOW BLOCK * 800T-XA2 SER D
 
DENSON VF26-1 12' CABLE ASSEMBLY, NNB
 
FOXBORO THERMOCOUPLE MODULE 2AX+E
 
TURCK PROXIMITY SENSOR BI2-G12-AP6X
 
KEYENCE 100-240VAC 2.1A 50/60HZ POWER SUPPLY, CA-U3, NNB
 
GENUINE STEARNS 90/95VDC COIL 6-3-90950-09
 
HONEYWELL WZ-2RW22-A2 MICRO SWITCH, IN BOX
 
FUJI ELECTRIC 3A SINGLE POLE CIRCUIT BREAKER CP31FM/3
 
BIMBA PNEUMATIC CYLINDER MRS-042-DXP2
 
NUMATICS ACTUATOR 2 1/2 BORE 5 1/2 STROKE P1AM-05I6J-ANS0?T11
 
ABB 1 N.O. 1N.C. AUXILIARY CONTACT CAL5-11 *LOT OF 6*
 
ALLEN BRADLEY BOARD 960082 REV-E2
 
SIEMENS POWER CONNECTOR 6FX2 003-0CA10 NIB
 
BRAD HARRISON * 4-POLE M/F EXTENSION NIB * 80604-030
 
GS HEAVY DUTY 60HZ 1PH TRANSFORMER HS1F1.5A
 
PUMP IMPELLERS CF-8M 53970
 
STATIC O RING 200-1750 PSI 2500 RANGE PRESSURE SWITCH, 8N6-B45-NX-C1A-?JJTTX6
 
SORGEL SQUARE D TRANSFORMER 4000AMP-2AMP CT X66111 2
 
Newly listedBROWNING BELT B38
 
BELL ELECTRICAL 125V 10A GRAY S.P. COVER SWITCH 5121, NIB 105327
 
SUPERIOR ELECTRIC 120 VOLTS 0.8 AMPS SLO-SYN MOTOR SS421G4
 
IFM EFECTOR 600 42MM TEMPERATURE SENSOR, TS2051 *NEW*
 
BEI 3/8" SHAFT DIA. ENCODER, H25E-SB-7200-AB?ZC-8830-SM18
 
SSAC * SOLID STATE TIMER NNB * TL120A5 PC47-1 4085B
 
DALE RESISTOR HLA-245-07Z-4
 
3-POLE 600V 120A CIRCUIT BREAKER HH83XB422A
 
CUTLER-HAMMER LIMIT SWITCH E50SAN6P SER. A2
 
KILLARK 30AMPS 600V PLUG WP-304E4567S
 
BALLUFF MULTI POSITION LIMIT SWITCH BNS-113-D08-R12?-100 *NEW*
 
CABLE 5PIN 20AWG/5 300V E54661
 
RELIANCE ELECTRIC MOBUS GATEWAY MODULE 57414-1B
 
DUREX 120V 250W HEATING ELEMENT BAND BH0275M100 *NEW NO BOX, LOT OF 2*
 
0-150 D-C AMPERES 612233-1A
 
TURCK PROXIMITY SENSOR Ni5-K11-Y1
 
BRAD HARRISON 8 PORT INTERCONNECT SYSTEM BLOCK BTG899-FBP-05 *NEW*
 
OLSUN DRY TYPE CLASS AA 60HZ 1PH 230 TO 460V 10KVA TRANSFORMER 12366 S-34931
 
HOLOPHANE 277V BALLAST REPLACEMENT KIT RBK400MHMTB *NEW*
 
MCI 1-5 480V / 6-10 120V 50A CONTROL TRANSFORMER 3A13371H04/50-1?20-480

    
ALLEN BRADLEY 1" GUARD FOR ILLUMINATED PUSHBUTTON, 800T-N93
 
APPLETON 1-1/2" MALL IRON FORM 35 UNILETS T150-M
 
BUSSMANN 250V 4A 5-PACK GLASS TUBE FUSES, AGC-4 NNB LOT OF 7
 
BANNER MULTI-BEAM SCANNER BLOCK 2SBDX1
 
ASEA CIRCUIT BOARD 2668 180-179/4
 
SANYO DENKI CO. RM2424S MOTOR
 
DEVILBISS GA-100 0-100 PSIG PRESSURE GAUGE, NEW
 
ALLEN BRADLEY * BREAKOUT CABLE * 209-U3BC-DD4401
 
GANDALF LDS 120 1996ZR SHORT HAUL MODEM
 
AMPHENOL RFX CRIMP PLUG 31-7100-RFX1 LOT OF 4
 
FESTO * FOOT MOUNT NIB * HBN-40X2
 
HONEYWELL 3A 250V MICRO SWITCH LIMIT SWITCH 914CES-KQ1
 
CONBRACO INDUSTRIES 120 PSIG, COMPAC TORQUE PNEUMATIC ACTUATOR, CTD-030 *NEW*
 
CMC 220/380V 30kA 30kA 660V 3-POLE CIRCUIT BREAKER QLV3
 
BEI 3/8" SHAFT DIA. ENCODER, H25E-SB-7200-M5?-ABZC-8830-SM18
 
TURCK PROXIMITY SWITCH B115-CP40-FDZ30?X2/S10
 
ASCO RED-HAT 110/120V 6.1/8.1W 50/60HZ 3/8" NPT SOLENOID VALVE, 8316G54 *NEW*
 
CALEX * TWO CHANNEL SIGNAL CONVERTER * MODEL 8501
 
ALLEN BRADLEY BULLETIN 512 CONTROL TRANSFORMER 512-BAC-1-6-24
 
FOXBORO PRESSURE TRANSMITTER 821AM-IK1NM1
 
BALLUFF * 4P FEMALE CABLE CONNECTOR * C49ANE00VY050M
 
CUTLER-HAMMER EATON CONTACTOR AE16BNS0 SER A1
 
FOXBORO PRESSURE TRANSMITTER IDP10-DF1C01-S0?RJB2Z1
 
DALE 100-OHMS 10% 225W RESISTOR HLA-225-07Z-4
 
CLE FORGE 1 29/31 HS DRILL BIT 7392
 
CLE FORGE 1 13/32 HS DRILL BIT 218103
 
HONEYWELL 250V 4 PIN PROXIMITY SWITCH 973AA2HM-A7T-L
 
HOFFMAN * THERMOSTAT A-TEM5A 120V/10A 250V * NO PART NUMBER
 
SALISBURY ELECRTICAL RUBBER GLOVES SZ 8 BLUE ANSI/ASTM D120 TYPE II
 
BAUMER ELECTRIC IFRM 06P1501/S25L
 
MATSUSHITA * FEC NUT RUNNER * DFT-201M1-S
 
SOLA 95-130/190-260/?380-520V TO 120V CONSTANT VOLTAGE TRANSFORMER 23-23-125-8
 
BALLUFF * 4-PIN/F 22AWG CABLE NIB * C04BEL00TY050M
 
HOFFMAN LIGHT ENCLOSURE ALF16M48R NIB
 
OMRON 24VDC SAFETY RELAY UNIT, G9S-501
 
IDEC BLACK SELECTOR SWITCH LOT OF 3 HW-CB10 98984
 
3M BOX OF SCHOTCHLOK ELECTRICAL SPRING CONNECTORS NIB 103620
 
FOXBORO INLIGENT DIFFERENTIAL PRESSURE TRANSMITTER 823MP-DM3SBSA
 
GOULD / FERRAZ SHAWMUT 30A 600V 2 POLE FUSEHOLDER USM2 N217523 *LOT OF 3*
 
LITTLEFUSE 2A, 600VAC POWR-GARD FUSE FLSR 2 *LOT OF 3*
 
SHARP POWER SUPPLY MODULE JW-1PU
 
ALLEN BRADLEY * MODULE * 800-3DL3XLL
 
FOXBORO CONTROL BOARD 2AX+AM
 
SENSOTEC 9-32VDC 4-20MA 25 PSIA AMPLIFIED TRANSDUCER, 415/7371-05
 
2-POLE 70A EXTERNAL COMMON TRIP CIRCUIT BREAKER G402
 
CANFIELD * CABLE * 51C7-1090024
 
2-POLE 40A INTERNAL COMMON TRIP CIRCUIT BREAKER G927

    
ADVANCE VC-2S102-TP RAPID START BALLAST, NIB
 
ROSS CONTROLS 24VDC 1/2" NPT SOLENOID VALVE, D2171A4982 *NNB*
 
FERRAZ SHAWMUT ULTRASAFE 600V 60A FUSE HOLDER * US6J1I
 
TPC WIRE & CABLE 300V 7 METER SJ00 QUICK-CONNECT CORD SET, CF24E25M007 *NEW*
 
CUTLER-HAMMER 15A 125-250VAC LIMIT SWITCH E47BMS03 *NEW, LOT OF 2*
 
MITSUBISHI * ELECTRIC PARAMETER UNIT * FR-PUO1E
 
OMRON 24VDC COIL STANDARD RELAY G7T-1112S W/ BASE 0163YH *LOT OF 5*
 
OMRON 24VDC COIL STANDARD RELAY G7T-1112S W/ BASE 3076EG *LOT OF 5*
 
TIME MARK 3-PHASE POWER MONITOR 258B, NIB 105398
 
MILLER 180433 TRIGGER ASSEMBLY CORD, LOT OF 19, NEW
 
BODINE ELECTRIC COMPANY 34X6BFPP-W2 GEAR MOTOR 230 VOLTS
 
YASKAWA * MAGNETIC CONTACTOR * HI-15E2TUT
 
SIEMENS 24VDC 10A CONTACTOR RELAY, 3RH1140-1BB40
 
STI MINSAFE / FLEXSAFE CURTAIN CONTROLLER MS4320B2-AC1-15?X-5R-U / MS43-B2-AC1
 
THOMAS AND BETTS ANGLE ADAPTER W/ JB6 JUNCTION BOX *NEW NO BOX*
 
HONEYWELL PHOTOELECTRIC SENSOR HEAD MPP6HD NNB
 
SKF 3.6KVA INDUCTION HEATER TIH 100m/230V
 
ADVANCE RC2S102TP MAGNETIC STD RPAID START BALLAST, NIB
 
GENERAL ELECTRIC MODEL#57 MINI LAMPS, LOT OF TEN, NIB
 
GE 1PH 3W 120/240V 225A A SERIES PANELBOARD AQF1362AT, AF49S, AB49B, W/ BREAKERS
 
MICRO SWITCH 600VAC LIMIT SWITCH, BZV6-2RN
 
ADVANCE 120V 60HZ RAPID START BALLAST R-1P32-TP *NEW*
 
ALLEN BRADLEY SIZE 1 27 AMP 600 VOLT 1 PH MOTOR STARTER 500-BOD930 SERIES B
 
FUJI ELECTRIC BLUE PUSH BUTTON LOT OF 5 AR22G4L E3 98974
 
TREX-ONICS * 4 POLE M/F EXTENSION 4M CABLE 18AWG NIB * 63432/97036
 
ORIENTAL MOTOR GEAR HEAD 2GN7.5K
 
FOXBORO ELECTRONIC TRANSMITTER 821AM-IK1NM1-M NIB
  
BANNER 20-250V AC OPPOSED MODE SENSOR S183EQ1
 
TAMAGAWA FA-SOLVER TYPE TS2087N1E9 26V 2,400HZ 800123-R
 
PDI CF1P-004A 60 PSI 2.5" S.S. CASE 1/4" NPT GLYCERIN FILLED PRESSURE GAUGE, NIB
 
TPC WIRE & CABLE 600V 4M SUPER-TREX QUICK-CONNECT CORD SET, CL23F02M004 *NEW*
 
PRESCOLITE 8" VERTICAL COMPACT RECESSED FLUORESCENT DOWNLIGHT FIXTURE, NIB
 
SIEMENS CIRCUIT BREAKER 3VF3211-1BW41-0?AA0, 3VF3211-1BW41-0?AC2
 
WOODHEAD ENS2115M160 16M ETHERNET MALE TO MALE CABLE, NEW
 
DIXON BOSS 2" HOSE FITTING COMPRESSION CLAMP 2188524
 
NORTHSTAR 5-26V ENCODER SWITCH, 757-3100-01
 
JOHN CRANE 69-64-0140 SIZE 1.625
 
DAIFUKU1-1552-1?48 HID PICK UP COIL
 
SQUARE D 1500:5 CURRENT TRANSFORMER 76R-152
 
IDEC BLACK PUSH BUTTON LOT OF 8 HW-CB20
 
FURNAS OVERLOAD RELAY SER A 48JB11AA2R
 
EMECANIQUE LED CLUSTER YELLOW LIGHT SET NIB XVBKEQ3743G1
 
MITSUBISHI MELSEC 24VDC AJ55TB32-8DT
 
FUJINON CAMERA LENS HF50HA-1B W/ SONY XC-56
 
BAILEY CONTROLS 118V 60CY CHART DRIVE MOTOR 35416 A1
 
CUTLER-HAMMER POWEREED BOX OF 2 REED RELAY POLES D40RPG *NEW, LOT OF 2 BOXES*
 
INTERNATIONAL RECTIFIER, RECTIFIER DIODE S23DG2B0
 
CUTLER-HAMMER * CONTACT KIT POLE SIZE 2 NIB * 6-24-2