Cisco Systems CX-FEIP-1FX=, CX-FEIP-1TX= manual Ieee 802.3u 100BaseT Specifications, Parameter

IEEE 802.3u 100BaseT Specifications

•100BASE-T4—100BASE-T, half and full duplex over Category 3, 4, or 5 UTP or shielded twisted-pair (STP) cabling with four pairs; also called 4T+ or T2, which is 2-pair UTP over Category 3 cable.

Each physical layer protocol has a name that summarizes its characteristics in the format speed/signaling method/segment length, where speed is the LAN speed in megabits per second (Mbps), signaling method is the signaling method used (either baseband or broadband), and segment length is typically the maximum length between stations in hundreds of meters. Therefore, 100BASE-T specifies a 100-Mbps, baseband LAN with maximum network segments of 100 meters (or 400 meters for 100BASE-FX).

IEEE 802.3u 100BaseT Specifications

This section provides specifications for IEEE 802.3u 100BaseT. Table 1-1 provides cabling specifications for 100BaseTX Fast Ethernet transmission over UTP and foil twisted-pair (FTP), and 100BaseFX Fast Ethernet over fiber-optic cables. It also summarizes IEEE 802.3u 100BaseTX and 100BaseFX physical characteristics. Also see Figure 2.

Table 1	Specifications and Connection Limits for 100BASE-TX and 100BASE-FX Transmission
Parameter		100BASE-TX	100BASE-FX Multimode	100BASE-FX Single Mode
Cable specification		Category 5 1 UTP2, 22 to 24 AWG	62.5/125 multimode optical fiber	9/125 micron single-mode optical fiber
Maximum segment		100 m	412 m	N/A
length (half-duplex)3
Maximum segment		100 m	2000 m	10,000 m
length (full-duplex)3
Maximum network		200 m	272 m	N/A
length (half-duplex, one
repeater)4
Data rate		100 Mbps	100 Mbps	100 Mbps
Signaling method		4B/5B block coded, scrambled, with	4B/5B block coded, with NRZI	4B/5B block coded, with NRZI line
		MLT-3 line coding	line coding	coding
Connector		SC-type: dual simplex or single	RJ-45 (ISO/IEC 60603-7:-1990	Single mode SC-type: dual simplex or
		duplex for RX and TX		single duplex for RX and TX
Topology		Star/hub	Star/hub	Star/hub

1.EIA/TIA-568 or EIA-TIA-568 TSB-36 compliant.

2.Cisco does not supply Category 5 UTP RJ-45 cables. However, they are available commercially.

3.Data Terminal Equipment (DTE to DTE), see Figure 2.

4.DTE to Repeater to DTE, see Figure 2.

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 9