1-42 Cisco 7000 Hardware Installation and Maintenance
Physical Description
• Collision—A frame collision has been detected.
Figure 1-14 Ethernet Interface Processor (EIP)
Up to five EIPs can be installed in available interface processor slots for a maximum of 30 Ethernet
ports. Each port requires an Ethernet transceiver or a media attachment unit (MAU) and attachment
unit interface (AUI) cable to connect to the external network. For descriptions of Ethernet
transceivers and AUIs refer to the section “Ethernet Connection Equipment” in the chapter
“Preparing for Installation.” For descriptions of Ethernet network connections refer to the section
“Ethernet Connections” in the chapter “Installing the Router.”
Each port on the EIP automatically supports both Ethernet Version 1 and Version 2/IEEE 802.3
connections. Ethernet Version 1 permits certain signals to float, whereas IEEE 802.3 requires the
signals to be grounded. When an interface is connected to an EIP port, the port automatically adjusts
to the interface type. The ports are independent, so you can mix both versions on one EIP.
Fast Ethernet Interface Processor
The FEIP provides up to two 100-Mbps, IEEE 802.3u 100BaseT ports. (Figure 1-15 shows a
two-port FEIP.) IEEE 802.3u specifies several different physical layers for 100BaseT:
100BaseTX—100BaseT, over Category 5, unshielded twisted-pair (UTP), EIA/TIA-568-compliant
cable; 100BaseFX—100BaseT full duplex, over twisted pair or optical fiber); and
100BaseT4—100BaseT, using Category 3 and 4 cabling with four pairs (also called 4T+).
H1898
ENABLED
U101
LEDs
Captive
installation
screw
Captive
installation
screw
Socket
with ROM
ENABLED
0
1
2
3
4
5
RECEIVE
TRANSMIT
COLLISION
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