Specifications

1-2
Cisco PA-FE-TX and Cisco PA-FE-FX Fast Ethernet 100BASE-T Port Adapter Installation and Configuration
OL-2899-02
Chapter 1 Overview
Port Adapter Overview
• 100BASE-TX—100BASE-T, half- and full-duplex over Category 5 unshielded twishted-pair (UTP),
Electronics Industry Association/Telecommunications Industry Association
(EIA/TIA)–568-compliant cable
• 100BASE-FX—100BASE-T, half- and full-duplex over optical fiber
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 the maximum length
between stations in hundreds of meters. Therefore, 100BASE-T specifies a 100-Mbps, baseband LAN
with maximum network segments.
Port Adapter Overview
The PA-FE-TX and PA-FE-FX single-width port adapters provide a 100-Mbps, 100BASE-T Fast
Ethernet interface and support both full-duplex and half-duplex operation. Refer to the “Fast Ethernet
Overview” section on page 1-1 for additional information. Figure 1-1 shows the PA-FE-TX, and
Figure 1-2 shows the PA-FE-FX.
Figure 1-1 PA-FE-TX—Faceplate View
Figure 1-2 PA-FE-FX—Faceplate View
H4495
ENABLED
MII LINK RJ45
FAST ETHERNET
0
H6014
ENABLED
MII LINK FIBER
0
FAST ETHERNET
RX
TX