Specifications

1-3
PA-8E 10BaseT Ethernet Port Adapter Installation and Configuration
OL-3494-04
Chapter 1 Overview
IEEE 802.3 10BaseT Specifications
IEEE 802.3 10BaseT Specifications
Table 1-1 summarizes the characteristics of IEEE 802.3 Ethernet and Ethernet Version 2 for 10BaseT.
Table 1-2 lists the cabling specifications for 10-Mbps transmission over UTP and foil twisted-pair (FTP)
cables.
Note The IEEE 802.3 Ethernet specifications call the PA-8E an end station, and the PA-8E has a built-in
transceiver. The PA-8E interfaces connect directly to a hub or repeater.
Table 1-1 IEEE 802.3 and 10BaseT Ethernet Version 2 Physical Characteristics
Parameter IEEE 802.3 Ethernet 10BaseT Ethernet Version 2
Data rate (Mbps) 10 10
Signaling method Baseband Baseband
Maximum segment
length (m)
500 100 (UTP)
Media 50-ohm coaxial
(thick)
UTP
Topology Bus Star
Table 1-2 Cable Specifications for 10-Mbps 10BaseT
Parameter RJ-45
Cable specification Category 5 UTP
1
, 22 to 24
AWG
2
1. Cisco Systems does not supply Category 5 UTP RJ-45 cables; these
cables are available commercially.
2. AWG = American Wire Gauge. This gauge is specified by the
EIA/TIA-568 standard.
Maximum segment
length
100 m (328 ft.) for 10BaseT
Maximum network
length
200 m (656 ft) (with 1 repeater)