Cisco CX-FEIP-1FX= Installation and con?guration User manual

1
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Cisco Systems, Inc.
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San Jose, CA 95134-1706
USA
Cisco Systems, Inc.
Corporate Headquarters
Copyright © 1995–2002
Documentation Part Number:
FastEthernet InterfaceProcessor(FEIP)
Installation and Configuration
Product Numbers: CX-FEIP-1TX=, CX-FEIP-2TX=, CX-FEIP-1FX=, CX-FEIP-2FX=
This configuration note is a standalone publication that provides instructions for installing and
configuring the Fast Ethernet Interface Processor (FEIP) in all Cisco 7000 series routers and
Cisco 7500 series routers. (For specific compatibility requirements, refer to the section “Software
and Hardware Prerequisites,” on page 3.)
Note For convenience throughout this publication, FEIP-1TX, FEIP-2TX, FEIP-1FX, and
FEIP-2FX are referred to as FEIP, with specific differences clearly noted.
Included in this configuration note are steps for FEIP hardware installation and cable connection,
and basic FEIP configuration steps and examples. A table of contents is included so you can more
easily find what you need.
For additional descriptions of interface subcommands and configuration options available for Fast
Ethernet (FE) interfaces, refer to the appropriate Cisco IOS software configuration and command
reference publications listed in the section “If You Need More Information” on page 2.
DOC-781812=
78-1812-10

2Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Document Contents
Document Contents
This publication includes the following sections:
•If You Need More Information
•Installation Prerequisites on page 3
•What Is the FEIP?, page 15
•FEIP Installation, page 21
•Configuring the Fast Ethernet Interfaces* on page 28
•Upgrading FEIP Microcode, page 37
•Cisco.com on page 41
If You Need More Information
The Cisco IOS software running your router contains extensive features and functionality. For
information on Cisco IOS software and for general installation and maintenance information for
your router, use the following resources:
•Cisco Documentation CD-ROM package
Cisco documentation and additional literature are available in a CD-ROM package, which ships
with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is
updated monthly; therefore, it might be more up to date than printed documentation. To order
additional copies of the Documentation CD-ROM, contact your local sales representative or call
customer service. The CD-ROM package is available as a single package or as an annual
subscription.
•For Cisco IOS software configuration information and support, refer to the modular
configuration and modular command reference publications in the Cisco IOS software
configuration documentation set that corresponds to the software installed on your Cisco
hardware. You can also refer to the Cisco IOS software release notes for the version of software
you are using on your hardware.
•For hardware installation and maintenance information on the Cisco 7500 series routers, refer to
the Cisco 7500 Series Installation and Configuration Guide that shipped with your Cisco 7500
series router.
•For hardware installation and maintenance information on the Cisco 7000 series routers, refer to
the Cisco 7000 Hardware Installation and Maintenance manual and the Cisco 7000 User Guide,
or to the Cisco 7010 Hardware Installation and Maintenance manual and the Cisco 7010 User
Guide, which shipped with your Cisco 7000 or Cisco 7010 router, respectively.
Note You can access Cisco IOS software documentation and hardware installation and
maintenance documentation on the World Wide Web at http://www.cisco.com,
http://www-china.cisco.com, http://www-europe.cisco.com.
If you are reading Cisco documentation on the World Wide Web, you can submit comments
electronically. Click Feedback on the toolbar, and then select Documentation. After you complete
the form, click Submit to send it to Cisco. We appreciate your comments.

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 3
Installation Prerequisites
•To obtain information about documentation, refer to the following:
—World Wide Web on page 40
—Documentation CD-ROM on page 40
—Ordering Documentation on page 40
—Documentation Feedback on page 40
—Cisco.com on page 41
—Technical Assistance Center on page 41
—The Cisco Information Packet that shipped with your router.
Installation Prerequisites
This section provides software and hardware prerequisites, a list of parts and tools you will need to
perform the installation, and safety and ESD-prevention guidelines to help you to avoid injury and
damage to the equipment. It also provides a detailed description of the OIR function to help you
perform online installation successfully and avoid error message and system restarts. If you are
installing a new FEIP, be sure to review the equipment descriptions and distance limitations in the
section “FEIP Receptacles, Cables, and Pinouts” on page 17.
Software and Hardware Prerequisites
The FEIP with 100BASE-TX port adapters operates with the CxBus and CyBus and requires that
the host Cisco 7000 series router is running Cisco IOS Release 10.3(5), or later, and the host
Cisco 7500 series routers are running Cisco IOS Release 10.3(6) or later.
The FEIP with 100BASE-FX port adapters operates with the CxBus and CyBus and requires that
the host Cisco 7000 family router is running Cisco IOS Release 10.3(13), or later, Release 11.0(10),
or later, or Release 11.1(5), or later.
Note The latest FEIP microcode images are available via anonymous File Transfer Protocol (FTP)
from /ftp/feip-fx at ftp.cisco.com. Detailed information about the latest FEIP microcode
images can be found in the ASCII file feip.readme.txt, which is also available via FTP from
ftp.cisco.com in the directory /ftp/feip-fx/. This ASCII file includes information and
instructions on how to get the current FEIP microcode image. To access Cisco IOS images, refer to
the section “Cisco.com” on page 41 at the end of this publication.
Caution If you use the FEIP with a single port adapter, you must have the port adapter in slot 0 for the FEIP
to function properly. A single port adapter in slot 1 will not be recognized by the system.
Note Each FE interface on an FEIP can be configured at 100 Mbps, half duplex or full duplex, for
a maximum aggregate bandwidth of 200 Mbps.
Caution To prevent oversubscribing the FEIP, we recommend that you do not operate both FE interfaces on
an FEIP in full-duplex mode.

4Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Installation Prerequisites
Each FEIP is a fixed configuration; therefore, individual port adapters are not available as spare parts
and are not field-replaceable or removable. The entire FEIP assembly is treated as a field-replaceable
unit (FRU). Do not attempt to remove an FEIP’s port adapter and replace it with another. Do not
attempt to simultaneously operate 100BASE-TX and 100BASE-FX port adapters on the same FEIP.
List of Parts and Tools
You need the following tools and parts to install or upgrade an FEIP. If you need additional
equipment, contact a service representative for ordering information.
•CX-FEIP-1TX(=), CX-FEIP-2TX(=), CX-FEIP-1FX(=), or CX-FEIP-2FX(=), and at least one
available interface processor slot in your Cisco 7000 series or Cisco 7500 series router (For
specific compatibility requirements, refer to the section “Software and Hardware Prerequisites”
on page 3.)
•Cables appropriate for the interfaces on your FEIP; Cisco Systems does not supply Category 5
UTP RJ-45 cables, MII cables, or SC-type cables; these cables are available commercially. (For
specific cable requirements, refer to the section “FEIP Receptacles, Cables, and Pinouts” on
page 17.)
Caution Before you attach an MII transceiver to an MII receptacle on your FEIP, ensure that your MII
transceiver responds to physical sublayer (PHY) address 0 per section 22.2.4.4. “PHY Address” of the IEEE
802.3u specification; otherwise, interface problems might result. Confirm that this capability is available on
your MII transceiver with the transceiver's vendor or in the transceiver's documentation. If a selection for
“Isolation Mode” is available, we recommend you use this setting (if no mention is made of “PHY
addressing”).
Caution To prevent system problems, do not simultaneously connect cables to the RJ-45 (or SC) and MII
receptacles on a single FEIP interface. Each interface (100BASE-FX or 100BASE-TX) can have either an
MII attachment or an RJ-45 (or SC) attachment, but not both. The MII and RJ-45 (or SC) receptacles
represent two physical connection options for one interface.
•Number 1 Phillips and a 3/16-inch, flat-blade screwdriver
•Your own ESD-prevention equipment or the disposable grounding wrist strap included with all
upgrade kits, FRUs, and spares
Safety Guidelines
Following are safety guidelines that you should follow when working with any equipment that
connects to electrical power or telephone wiring.
Electrical Equipment Guidelines
Follow these basic guidelines when working with any electrical equipment:
•Before beginning any procedures requiring access to the chassis interior, locate the emergency
power-off switch for the room in which you are working.
•Disconnect all power and external cables before moving a chassis
•Do not work alone when potentially hazardous conditions exist.
•Never assume that power has been disconnected from a circuit; always check.

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 5
Safety Guidelines
•Do not perform any action that creates a potential hazard or makes the equipment unsafe.
•Carefully examine your work area for possible hazards such as moist floors, ungrounded power
extension cables, and missing safety grounds.
Telephone Wiring Guidelines
Use the following guidelines when working with any equipment that is connected to telephone
wiring or to other network cabling:
•Never install telephone wiring during a lightning storm.
•Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
•Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
•Use caution when installing or modifying telephone lines.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are
improperly handled, results in complete or intermittent failures.
Use the following guidelines for preventing ESD damage:
•Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.
•Connect the equipment end of the strap to an unfinished chassis surface.
•When installing a component, use any available ejector levers or captive installation screws to
properly seat the bus connectors in the backplane.
•When removing a component, use any available ejector levers or captive installation screws to
release the bus connectors from the backplane or midplane.
•Handle carriers by available handles or edges only; avoid touching the printed circuit boards or
connectors.
•Place a removed component board-side-up on an antistatic surface or in a static shielding
container; otherwise, immediately place it in a static shielding container.
•Avoid contact between the printed circuit boards and clothing. The wrist strap only protects
components from ESD voltages on the body; ESD voltages on clothing can still cause damage.
•Never attempt to remove the printed circuit board from the metal carrier.
Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should
be between 1 and 10 megohms.

6Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Installation Prerequisites
Guidelines for Interface Processor Installation and Removal
This section describes mechanical functions of system components, emphasizes the importance of
following correct procedures to avoid unnecessary board failures, and is for background only;
specific procedures follow in the section “FEIP Installation” on page 21.
You can remove and replace interface processors while the system is operating; you do not need to
notify the software or reset the system power. This functionality enables you to add, remove, or
replace interface processors with the system online, which provides a method that is seamless to end
users on the network, maintains all routing information, and ensures session preservation.
After an interface processor is reinstalled, the system brings on line only interfaces that match the
current configuration and were previously configured as up; all others require that you configure
them with the configure command.
Caution The system can indicate a hardware failure if you do not follow proper procedures. Remove or
insert only one interface processor at a time. Allow at least 15 seconds for the system to complete the
preceding tasks before removing or inserting another interface processor. Disrupting the sequence before the
system completes its verification can cause the system to interpret hardware failures.
Cisco 7000 series and Cisco 7500 series routers have ejector levers located on the ends of the
interface processor slots. (See Figure 1a.) The function of the ejector levers is to align and seat the
interface processor connectors in the backplane. Failure to use the ejector levers and insert the
interface processor properly can disrupt the order in which connector pins make contact with the
backplane.
Follow the FEIP installation and removal instructions carefully, and review the following examples
of incorrect insertion practices and their results:
•Using the handle to force the interface processor all the way into the slot can pop the ejector
levers out of their springs. If you then try to use the ejector levers to seat the interface processor,
the first layer of pins (which are already mated to the card or interface processor) can disconnect
and then remate with the backplane, which the system interprets as a board failure.
•Using the handle to force or slam the interface processor all the way into the slot can damage the
pins on the board connectors if they are not aligned properly with the backplane.
•When using the handle (rather than the ejector levers) to seat the interface processor in the
backplane, you might need to pull the interface processor back out and push it in again to align
it properly. Even if the backplane pins are not damaged, the pins mating with and disconnecting
from the card or interface processor might cause the system to interpret a board failure. Using the
ejector levers ensures that the board connector mates with the backplane in one continuous
movement.
•Using the handle to insert or remove an interface processor, or failing to push the ejector levers
fully against the interface processor, can leave some (not all) of the connector pins mated to the
card or interface processor, a state which hangs the system. Using the ejector levers and making
sure that they are pushed fully into position ensures that all three layers of pins are mated with
(or free from) the backplane.
Use the ejector levers when removing an interface processor to ensure that the backplane connector
pins disconnect from the interface processor in the sequence expected by the system. Any interface
processor that is only partially connected to the backplane can hang the bus. Steps for correctly
performing OIR are included with the following procedures for installing and removing the FEIP.

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 7
Guidelines for Interface Processor Installation and Removal
Figure 1 Ejector Levers/Captive Installation Screws on the FEIP (Horizontal
Orientation Shown)
Note The FEIP is oriented horizontally in the Cisco 7010 and Cisco 7505 and vertically in the
Cisco 7000, Cisco 7507, and Cisco 7513.
Interface processor
card slot
Interface processor card
carrier guide (black)
Ejector
lever
Captive
installation
screw
H1984
ab
c

8Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Installation Prerequisites
Microcode Overview
The FEIP microcode (firmware) is an image that provides card-specific software instructions. A
programmable read-only memory (PROM) device on the FEIP contains a default microcode boot
image that assists the system in finding and loading the microcode image from the Cisco IOS
software bundle or Flash memory. The router supports downloadable microcode, which allows you
to upgrade microcode versions by downloading new microcode images, storing them in system
Flash memory, and instructing the system to load its image from Flash. You can store multiple
images for an interface type and, with a configuration command, instruct the system to load any one
ofthemorthedefault microcodeimage. The microcodeboot image inthe PROMinitializes the FEIP
and then assists downloading the FEIP microcode image. All interfaces of the same type (FEIP, and
so on) load the same microcode image, either from the microcode image bundled with the Cisco IOS
software or from an image stored in system Flash. Although multiple microcode versions for a
specific interface type can be stored concurrently in Flash, only one image can load at startup.
The show controllers cbus command displays the currently loaded and running microcode version
for each interface processor, and FEIP. The showstartup-config EXEC command shows the current
system instructions for loading microcode at startup.
Software and interface processor microcode images are carefully optimized and bundled to work
together. Overriding the bundle can result in system incompatibilities. We recommend that you use
the microcode included in the software bundle. For a complete description of microcode and
downloading procedures, refer to the section “Upgrading FEIP Microcode” on page 37.
Fast Ethernet Overview
The term Ethernet is commonly used for all carrier sense multiple access/collision detection
(CSMA/CD), local-area networks (LANs) that generally conform to Ethernet specifications,
including Fast Ethernet under IEEE 802.3u.
Note 100BASE-TX is intended for Environment A, and 100BASE-FX is intended for
Environment B.
IEEE 802.3u is well suited to applications where a local communication medium must carry
sporadic,occasionally heavytrafficathigh peak datarates. Stations on a CSMA/CDLAN can access
the network at any time. Before sending data, the station listens to the network to see if it is already
in use. If it is, the station waits until the network is not in use, then transmits; this is half-duplex
operation.
A collision occurs when two stations listen for network traffic, hear none, and transmit very close to
simultaneously. When this happens, both transmissions are damaged, and the stations must
retransmit. The stations detect the collision and use backoff algorithms to determine when they
should retransmit. Both Ethernet and IEEE 802.3u are broadcast networks, which means that all
stations see all transmissions. Each station must examine received frames to determine if it is the
intended destination and, if it is, to pass the frame to a higher protocol layer for processing.
IEEE 802.3u specifies the following different physical layers for 100BASE-T:
•100BASE-TX—100BASE-T, half and full duplex over Category 5 unshielded twisted-pair
(UTP), Electronics Industry Association/Telecommunications Industry Association
[EIA/TIA]-568-compliant cable
•100BASE-FX—100BASE-T, half and full duplex over optical fiber

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 9
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 51UTP2, 22 to 24 AWG
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.
62.5/125 multimode optical fiber 9/125 micron single-mode optical fiber
Maximum segment
length (half-duplex)3
3. Data Terminal Equipment (DTE to DTE), see Figure 2.
100 m 412 m N/A
Maximum segment
length (full-duplex)3100 m 2000 m 10,000 m
Maximum network
length(half-duplex,one
repeater)4
4. DTE to Repeater to DTE, see Figure 2.
200 m 272 m N/A
Data rate 100 Mbps 100 Mbps 100 Mbps
Signaling method 4B/5B block coded, scrambled, with
MLT-3 line coding 4B/5B block coded, with NRZI line coding 4B/5B block coded, with NRZI line coding
Connector SC-type: dual simplex or single
duplex for RX and TX RJ-45 (ISO/IEC 60603-7:-1990 Single mode SC-type: dual simplex or single duplex for RX and TX
Topology Star/hub Star/hub Star/hub

10 Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Installation Prerequisites
Figure 2 Maximum Segment and Network Lengths—100BASE-FX and 100BASE-TX
What Is the Cisco 7000 Series?
The Cisco 7000 series includes the Cisco 7000 and Cisco 7010 routers. The FEIP operates in the
Cisco 7000 series routers. (For software and hardware requirements, refer to the section “Software
and Hardware Prerequisites” on page 3.)
Network interfaces reside on modular interface processors, including the FEIP, which are inserted
into interface processor slots and provide a direct connection between external networks and the
high-speed CxBus in the Cisco 7000 series. The Cisco 7000 series supports any combination of
available network interface types.
In the 7-slot Cisco 7000 (see Figure 3), slots 0 through 4 are for interface processors including the
FEIP.
Maximum segment length, full duplex
100 m TX DTEDTE*
*DTE = Data Terminal Equipment
**Because repeaters have more delay, total network length is shorter.
2000 m FX–multimode
Maximum segment length, half duplex
100 m TX DTEDTE 412 m FX
Maximum segment length, full duplex
10,000 m FX–single mode DTEDTE
Maximum network length, half duplex
200 m TX DTEDTE R
(Repeater)
272 m FX**
31703

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 11
What Is the Cisco 7000 Series?
Figure 3 Cisco 7000 (Interface Processor End)
In the 5-slot Cisco 7010 (Figure 4), slots 0 through 2) are for interface processors including the FEIP.
Figure 4 Cisco 7010 (Interface Processor End)
H5288
Interface processor slots 0 123 4 RSP
7000
slot 5
RSP
7000CI
slot 6
Upper
power supply
Lower
power supply
I
O
DC FAIL
AC POWER
I
O
DC FAIL
AC POWER
Captive
installation screw
Captive
installation screw
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR
ENABLE
ENABLE
H5874
RSP7000CI slot 4
RSP7000 slot 3
Interface processor slot 1
DC OK LED
Power switch
Chassis ground
screw
Power receptacle
Interface processor slot 2
Interface processor slot 0
AC-input power supply
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR
ENABLE
ENABLE

12 Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Installation Prerequisites
What Is the Cisco 7500 Series?
The Cisco 7500 series includes the Cisco 7505, Cisco 7507, and Cisco 7513 routers. The FEIP
operates in the Cisco 7500 series routers. (For software and hardware requirements, refer to the
section “Software and Hardware Prerequisites” on page 3.)
Network interfaces reside on modular interface processors, including the FEIP, which are inserted
into interface processor slots and provide a direct connection between external networks and the
high-speed CyBus in the Cisco 7500 series. The Cisco 7500 series supports any combination of
available network interface types.
In the 5-slot Cisco 7505 (see Figure 5), slots 0 through 3 are for interface processors including the
FEIP.
Figure 5 Cisco 7505 (Interface Processor End)
H2761
RSP slot
DC OK LED
Power switch
Chassis
grounding
receptacles
Power receptacle AC-input power supply
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR
ENABLE
ENABLE
Interface processor slot 1
Interface processor slot 2
Interface processor slot 0
Interface processor slot 3

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 13
What Is the Cisco 7500 Series?
In the Cisco 7507 (see Figure 6), slots 0 and 1 and 4 through 6 are for interface processors including
the FEIP.
Figure 6 Cisco 7507 (Interface Processor End)
ENABLE
ENABLE
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR 2
SLAVE
MASTER
SLAVE/MASTER
H3888
Slot 0 1234 5 6
Upper
power supply
Chassis
grounding
receptacles
Lower
power supply
I
O
DC FAIL
AC POWER
I
O
DC FAIL
AC POWER
RSP slots
Captive
installation screw
Captive
installation screw

14 Fast Ethernet Interface Processor (FEIP) Installation and Configuration
Installation Prerequisites
In the Cisco 7513 (see Figure 7), slots 0 through 5 and 8 through 12 are for interface processors
including the FEIP.
Figure 7 Cisco 7513 (Interface Processor End)
ENABLE
ENABLE
H5268
EJECT
SLOT 0
SLOT 1
NORMAL
CPU HALT
RESET
AUX.
CONSOLE
ROUTE SWITCH PROCESSOR 2
SLAVE
MASTER
SLAVE/MASTER
Blower module
Cable-management
bracket
Card cage and
processor modules
Air intake vent
Power supplies
Chassis grounding
receptacles
0
I
AC
OK FAN
OK OUTPUT
FAIL
0
I
AC
OK FAN
OK OUTPUT
FAIL
POWER
A
POWER
B

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 15
What Is the FEIP?
What Is the FEIP?
The FEIP provides up to two 100-Mbps, IEEE 802.3u Fast Ethernet interfaces. (Figure 8 shows a
two-port 100BASE-TX FEIP.)
The FEIP is available in the following fixed configurations:
•CX-FEIP-1TX(=)—FEIP with one 100BASE-TX port adapter in port adapter slot 0
•CX-FEIP-2TX(=)—FEIP with two 100BASE-TX port adapters
•CX-FEIP-1FX(=)—FEIP with one 100BASE-FX port adapter in port adapter slot 0
•CX-FEIP-2FX(=)—FEIP with two 100BASE-FX port adapters
Figure 8 Fast Ethernet Interface Processor (FEIP-2TX)
Each100BASE-TXinterfacehas an RJ-45connector to attachto Category 5unshielded twisted-pair
(UTP) for 100BASE-TX, and an MII connector that permits connection through external
transceivers to multimode fiber for 100BASE-FX, or to Category 3, 4, and 5 UTP or shielded
twisted-pair (STP) for 100BASE-T4 physical media. Each 100BASE-TX or 100BASE-FX interface
on an FEIP can be configured at 100 Mbps, half duplex or full duplex, for a maximum aggregate
bandwidth of 200 Mbps.
Caution To prevent oversubscribing the FEIP, we recommend that you do not operate both FE interfaces on
an FEIP in full-duplex mode.
For pinouts, refer to the section “FEIP Receptacles, Cables, and Pinouts” on page 17. The standard
dynamic random access memory (DRAM) size for the FEIP is 8 megabytes (MB). You can install
FEIPs in any available interface processor slots.
H2940
DRAM
SIMMs
Microcode
ROM U37
Bus connector
MII RJ-45

16 Fast Ethernet Interface Processor (FEIP) Installation and Configuration
What Is the FEIP?
Note Each FEIP is a fixed configuration; therefore, individual port adapters are not available as
spare parts and are not field-replaceable or removable. The entire FEIP card is treated as a
field-replaceable unit (FRU). Do not attempt to remove an FEIP’s port adapter and replace it with
another. Do not attempt to install 100BASE-TX and 100BASE-FX port adapters on the same FEIP.
Caution To prevent system problems, we recommend that you not attempt to remove an FEIP port adapter
and replace it with another, nor attempt to mix 100BASE-TX and 100BASE-FX FE port adapters on the same
FEIP.
Note Each of the two 100BASE-FX interfaces on the FEIP-2FX uses the MII connector like the
FEIP-2TX, but the FEIP-2FX has an SC-type fiber-optic connector in place of the RJ-45 connector.
Either the MII LED or the RJ-45 (or FIBER) LED should be on at any one time; never both.
Caution To prevent system problems, do not simultaneously connect cables to the RJ-45 (or SC) and MII
receptacles on a single FEIP port adapter. Each port adapter (100BASE-FX or 100BASE-TX) can have either
an MII attachment or an RJ-45 (or SC) attachment, but not both. The MII and RJ-45 (or SC) receptacles
represent two physical connection options for one port adapter.
FEIP LEDs TheFEIP contains theenabled LED and a bank of threestatus LEDs foreach of thetwo portadapters
(located between the two receptacles on each port adapter). After system initialization, the enabled
LED goes on to indicate that the FEIP has been enabled for operation. (The LEDs are shown in
Figure 9.)
Figure 9 LEDs on an FEIP Port Adapter (Partial Faceplate View)
The following conditions must be met before the enabled LED goes on:
•The FEIP is correctly connected and receiving power
•The FEIP card contains a valid microcode version that has been downloaded successfully
•The bus recognizes the FEIP.
If any of these conditions is not met, or if the initialization fails for other reasons, the enabled LED
does not go on.
H2941

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 17
FEIP Receptacles, Cables, and Pinouts
Following are the three status LEDs and an explanation of what each indicates:
•MII—On when the MII port is selected as the active port by the controller.
•Link—When the RJ-45 or SC port is active, this LED is on when the port adapter is receiving a
carrier signal from the network. When the MII port is active, this LED is an indication of network
activity, and it flickers on and off proportionally to this activity.
•RJ45 (or FIBER on FEIP-1FX or FEIP-2FX)—On when the RJ-45 (or FIBER) port is selected
as the active port by the controller.
FEIP Receptacles, Cables, and Pinouts
The two interface receptacles on the FEIP port adapter are a single MII, 40-pin, D-shell type
receptacle, and a single RJ-45 receptacle (or SC-type for FEIP-1FX and -2FX optical-fiber
connections). (See the 1FE-TX port adapter in Figure 10 and the 1FE-FX port adapter in Figure 11.)
You can use either one receptacle or the other; only one receptacle can be used at one time. Each
connection supports IEEE 802.3u interfaces compliant with the 100BASE-X and 100BASE-T
standards. The RJ-45 connection does not require an external transceiver. The MII connection
requires an external physical sublayer (PHY) and an external transceiver. Cisco Systems does not
supply Category 5 UTP RJ-45 cables; these cables are available commercially.
Caution To prevent system problems, do not simultaneously connect cables to the RJ-45 (or SC) and MII
receptacles on a single port adapter. Each port adapter (100BASE-FX or 100BASE-TX) can have either an
MII attachment or an RJ-45 (or SC) attachment, but not both. The MII and RJ-45 (or SC) receptacles
represent two physical connection options for one Fast Ethernet interface.
Figure 10 1FE-TX Port Adapter (Faceplate View)
Figure 11 1FE-FX Port Adapter (Faceplate View)
H4495
ENABLED
MII LINK RJ45
FAST ETHERNET
0
H6014
ENABLED
MII LINK FIBER
0
FAST ETHERNET
RX
TX

18 Fast Ethernet Interface Processor (FEIP) Installation and Configuration
What Is the FEIP?
The RJ-45 connection does not require an external transceiver. The MII connection requires an
external physical sublayer (PHY) and an external transceiver. Figure 12 shows the RJ-45 cable
connectors. RJ-45 cables are not available from Cisco Systems, but are available from commercial
cable vendors. Table 2 lists the pinouts and signals for the RJ-45 connectors.
Figure 12 RJ-45 Connections (Connector and Plug)
Warning The ports labeled “Ethernet,” “10BASE-T,” “Token Ring,” “Console,” and “AUX” are safety
extra-low voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Because
the BRI circuits are treated like telephone-network voltage, avoid connecting the SELV circuit to the
telephone network voltage (TNV) circuits.
Table 2 RJ-45 Connector Pinout
Note Referring to the RJ-45 pinout in Table 2, proper common-mode line terminations should be
used for the unused Category 5, UTP cable pairs 4/5 and 7/8. Common-mode termination reduces
the contributions to electromagnetic interference (EMI) and susceptibility to common-mode
sources. Wire pairs 4/5 and 7/8 are actively terminated in the RJ-45, 100BASE-TX port circuitry in
the FEIP port adapter.
Pin Description
1 Receive Data + (RxD+)
2 RxD–
3 Transmit Data + (TxD+)
6 TxD–
H2936
87654321
RJ-45 connector

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 19
FEIP Receptacles, Cables, and Pinouts
Depending on your RJ-45 interface cabling requirements, use the pinouts in Figure 13 and
Figure 14.
Figure 13 Straight-Through Cable Pinout (Connecting FEIP RJ-45 Interface to a Hub or
Repeater)
Figure 14 Crossover Cable Pinout (RJ-45 Connections Between Hubs and Repeaters)
Figure 15showsthe duplex SCconnector (onerequired forboth transmitand receive),and Figure 16
shows the simplex SC connector (two required, one for each transmit and receive) used for 1FE-FX
optical-fiber connections. These multimode optical-fiber cables are commercially available, and
they are not available from Cisco Systems.
Figure 15 1FE-FX Duplex SC Connector
Figure 16 1FE-FX Simplex SC Connector
Hub or repeaterFEIP
5 TxD+
6 TxD–
3 RxD+
4 RxD–
5 RxD+
6 RxD–
3 TxD+
4 TxD– H3137
ub or LAN switch
3 TxD+
6 TxD–
1 RxD+
2 RxD–
3 TxD+
6 TxD–
1 RxD+
2 RxD– H3138
Hub or LAN switch
H2214
H2399

20 Fast Ethernet Interface Processor (FEIP) Installation and Configuration
What Is the FEIP?
Depending on the type of media you use between the MII connection on the port adapter and your
switch or hub, the network side of your 100BASE-T transceiver should be appropriately equipped
with SC-type or ST-type connectors (for optical fiber), BNC connectors, and so forth. Figure 17
shows the pin orientation of the female MII connector on the port adapter.
The MII receptacle uses 2-56 screw-type locks, called jackscrews (shown in Figure 17), to secure
the cable or transceiver to the MII port. MII cables and transceivers have knurled thumbscrews
(screws you can tighten with your fingers) that you fasten to the jackscrews on the FEIP MII
connector. Use the jackscrews to provide strain relief for your MII cable. (The RJ-45 modular plug
has strain relief functionality incorporated into the design of its standard plastic connector.)
Figure 17 shows the MII connector.
Figure 17 MII Connection (Female)
Table 3 lists the MII connector pinout and signals. MII cables are available commercially.
Table 3 MII Connector Pinout
Pin1
1. Any pins not indicated are not used.
In Out In/Out Description
14–17 – Yes – Transmit Data (TxD)
12 Yes – – Transmit Clock (Tx_CLK)2
2. Tx_CLK and Rx_CLK are generated by the external transceiver.
11 – Yes – Transmit Error (Tx_ER)
13 – Yes – Transmit Enable (Tx_EN)
3 – Yes – MII Data Clock (MDC)
4–7 Yes – – Receive Data (RxD)
9 Yes – – Receive Clock (Rx_CLK)
10 Yes – – Receive Error (Rx_ER)
8 Yes – – Receive Data Valid (Rx_DV)
18 Yes – – Collision (COL)
19 Yes – – Carrier Sense (CRS)
2 – – Yes MII Data Input/Output (MDIO)
22–39 – – – Common (ground)
1, 20, 21, 40 – – – +5.0 volts (V)
Jackscrew Pin 1
Pin 21
H2943