Cisco Systems CX-FEIP-2TX= Manuale Utente

Fast Ethernet Interface Processor (FEIP) Installation and Configuration  17

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.

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.

H4495

H6014

FAST ETHERNET