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UTP STP

(NIC-Network Interface Card)

RAM

OSI LAN ( ) OSI/RM OSI/RM

(1) Router SwitchHub NIC CPURAMHard Driver (2) (CPURAM Hard Driver)

Local Area Network) Metropolitan Area Network) ( Wind Area Network)

ISAEISA MCAVLPCI ISA PCI MCA ISA PCI

16 32 16 32

( 100 185)

10Mbps 100Mbps 10Mbps 100Mbps

ISA EISA PCI ISA 16 10Mbps NE2000 EISA PCI 32 10Mbps100Mbps EISA

10M 100M 10/100M 1000M PCI ISA EISA

AUI BNC RJ45 45 IPC RJ45BNC TPO RJ45 Combo(RJ45AUIBNC)TP BNCAUI 10M ISA 100M PCI EISA

RJ-45 BNC AUI 3. RJ-45

BNC PnP BOOT ROM

2. 16

3. DMA DMA(Direct Memory Access) CPU DMA1 DMA3 DMA

( ) 16 NE2000TE2000 32 NE3200

4 BIOS BootROM 3 CC000 (IRQ)IRQ3

I/O Port(I/O ) 300H 320H340H360H DMA NE2000 DMA (Auto-Switch) setup.exe

1. 3Com 3Com 3C905B10/100M RJ 45 PCI PCParallel Tasking II 3Com 3C509BTPC10M RJ 45 ISA PCParallel Tasking II 3Com 3C508TPO10M RJ45 ISA

2. ACCTON Accton EN 1660 1AUI1 BNC1RJ45 MPX2 Plug and Play Full Duplex 10M 20Mbps

Accton EN 1208 10M RJ 45 Full Duplex 10Mbps 20Mbps Accton MPX2 PCI BOOT ROM

Accton EN 2216 BNC RJ45 CompaqIBMAST ToshibaAcer

3. DLink 19863 D-Link D-Link D-Link 70%

DLink DE220PCTRJ45/BNC PNP NE2000 NOVELL/NT/WIN95

DLink DFE500TXRJ45 10/100M DEC 32 PCI IRQ I/O NOVELL/NT/WIN95

DLink DFE530TX RJ45 10/100M 32 PCI IRQ I/O NOVELL/NT/WIN9 5

DLink DE660CT10M PCMCIA NE2000 LED / / DLink DFE650TX 10/100M NWAY LED

DFE-500FX 100Mbps 32PCI / 2Km I/O LEDs DEC

DFE-550TX DFE-550TX 32,,CPU PCI,, CPU NWAY 10/100Mbps DFE-550TX RJ45, 10BASE-T 100BASE-TX /,

WAKE-ON-LAN( ) ACPI,DFE-550TX, Wired for Management Guideline v10, AMD Magic Packet WOL Windows NT5.0 Wakeup Frame Media Change( EEPROM ) DFE-550TX,, PC,

DFE-570TX 410/100Mbps MAC IEEE802.310BASE-T802.3u 100BASE-TX PCI 2.12.2. / 32 PCI-to-PCI 800Mbps

DEC IPIPX NetBEUI SNMP MIBs

(TP: Twisted Pairwire),

2226 ( ),,, 38.1cm 14cm, 12.7cm,,, (UTP: Unshilded Twisted Pair) (STP: Shielded Twisted Pair)

100Mbps155Mbps,,, 100 155Mbps

, : (1),, (2) (3) (4) (5),

EIA/TIA 1MHz 4Mbps 4Mbps

: ANSIEIA/TIA568 16MHz, 10Mbps 10base-T : 20MHz, 16Mbps 10base- T/100base-T

:,, 100MHz, 100Mbps 100base-T 10base-T 100 150 (WG )

1.54 24 100MHz 4

: 54

2. 5424AWG100 24 24AWG TPG 100MHz, 6

: 5424AWG100

3.5426AWG 4 26AWG TPC 100MHz

: 5424AWG100

4.5424AWG 4,,, 100MHz

5424WAG100

5 5 (UTP), " " ", TIA/EIA5685 5 UTP,, (ACR) (SRL), :

(1), (2), (3) (4),

5,5 (NEXT) LAN NEXT NEXT db,

, NEXT 10BASETTokenRing 100BASET 155Mbps ATM, LAN 622Mbps ATM1000BASE-T ( 4 ) 5

( Power Sum NEXT) NEXT 5 Power Sum NEXT, LAN 5 NEXT 5 1/8

(Structural Return Loss),, SRL,,,

5 100MHz 8db 5 1/4

1. 50

1km 1Gb/s~2Gb/s

2. " " 4kHz " "

300MHz 450MHz

6MHz CD (1.4Mb/s) 3Mb/s

1) 1 (head-end) 2 1 2

2) (subsplit) 5MHz~30MHz 40MHz~300MHz (midsplit) 5MHz~116MHz 168MHz~300MHz

3. :,

,,,, 100, 20,,,

, (1) BNC T (2) Tap,,

1. (1) 502 3 2

(2) 500 10MHz 8.5db(17db/ ) 5MHz, 6.0db(12db/ ) (3) 0.77C(C ) (4) 10 /(20 )

, 254mm(10 ) 2.17mm0.013mm ECM, 6.15mm, 8.28mm (PVC)

3. : (1) (2) (3) (4)

,,, 50(RG-8RG-58);, 75(RG-59)

,,,,,, (BNC) T

,,,

: RG-8RG-11 50 RG-58 50 RG-59 75 RG-62 93 RG-8 RG-58 RG-59 RG-62 ARCnet IBM3270

,, / 1.

BNC BNC T

(1) : BNC PCMCIA (2) BNC-T : Ethernet T,, BNC

(3) (RG-58 A/U): 5, 50 BNC : BNC : BNC :BNC 50,

(4) :, 185,,,

:185 :925 :30 BNC-T :0.5

2. N N

(1) : AUI PCMCIA (2) (Transceiver):, (IEEE802.3)

(3) :, AUI (4) : :

(RG-11 A/U): 10, 50, 2.5 N- : N- : N- :N- 50,

(5) :, 500,,,

:500 :2500 :100 :2.5 :50

,, 2500

3. / /,, : N- BNC N- BNC

: 185, 500 : 925, 2500

t= ( 500 - L ) / 3.28 L t 400, (500-400 ) / 3.28 = 30()

15mm~50mm 8mm~10mm,, 1

2. : (Single Mode Fiber) (Multi Mode Fiber)

3. 10%20%

5 10%

4. LED(light-emitting diode) ILD(injection laser diode)

LED

1ns 1Gb/s

(active repeater)

,, :

,,,,,

,,, 420Mbps 119, 10-8,

,,,

( )

8.3m 125m 62.5m 125m 50m 125m 100m 140m

:,,,,

62.5m/125m 100m/125m100m/140m 2

1. (1)

, LIGHTCRIMP

(2) 900m Aramid,

UL/CSA OFNROFNP Bellcore GR-409- COREIEC793-1/794-1 62.5/125 ISO/IEC 11801:1995

2. (1)

LIGHTCRIMP

(2) 900m Aramid

UL/CSA OFNROFNP Bellcore GR-409- COREIEC793-1/794-1 62.5/125 ISO/IEC 11801:1995 5 4 6

3. (1)

LIGHTCRIMP

(2) 900m EZA UL/CSA OFNROFNP

Bellcore GR-409- COREIEC793-1/794-1 62.5/125 ISO/IEC 11801:1995 12 2472, 7

4. (1)

, LIGHTCRIMP

(2) 900m 2.4mm UL/CSA OFNROFNP

Bellcore GR-409- COREIEC793-1/794-1 62.5/125 ISO/IEC 11801:1995 Aramid 4 6 8 12 8

5. 412 (1)

( ) /

(2) 900m TIA,, Bellcore GR-20- CORE

62.5/125 ISO/IEC 11801:1995 Aramid,, 4 6 8 12,, 9

6. 24144 (1)

( )

(2) TIA,, Bellcore GR-20- CORE

62.5/125 ISO/IEC 11801:1995 Aramid,,, 24144, 243648607296 1447, 10

7. / (1)

,, ( ) /

(2) LSZH TIA,, Bellcore GR-20-CORE

62.5/125 ISO/IEC 11801:1995 Aramid,, / 4 6 8 12 24 32, 11

,,,

UTP STP BNC RG-58(50Ω)

MAU RG-8(50Ω)

ST SC AUI STSC RG-45 HUB