User guide

16 Fast Ethernet Interface Processor (FEIP) Installation and Conﬁguration

What Is the FEIP?

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 9 and the 1FE-FX port adapter in Figure 10.)

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 9 1FE-TX Port Adapter (Faceplate View)

Figure 10 1FE-FX Port Adapter (Faceplate View)

H4495

ENABLED

MII

LINK

RJ45

FAST ETHERNET

H6014

ENABLED

MII

LINK

FIBER

FAST ETHERNET