Specifications

Second-Generation Fast Ethernet Interface Processor (FEIP2) Installation and Configuration 27
FEIP2 Installation
Connect RJ-45, SC (FEIP2-2FX), or MII cables as follows:
Step 1 If you have MII connections, attach an MII cable directly to the MII port on the FEIP2 or
attach a 100BASE-T transceiver, with the media appropriate to your application, to the
MII port on the FEIP2. (See Figure 19 for FEIP2-2TX or Figure 20 for FEIP2-2FX.)
Caution Before you attach an MII transceiver to an MII receptacle on your FEIP2, 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”).
If you have RJ-45 connections, attach the Category 5 UTP cable directly to one of the
RJ-45 ports on the FEIP2. (See Figure 19 for FEIP2-2TX or Figure 20 for FEIP2-2FX.)
The FEIP2 is an end station device and not a repeater. You must connect the FE interface
to a repeater or hub.
If you have an SC connection (FEIP2-2FX), attach a cable directly to the SC port on one
of the FEIP2-2FX’s interfaces. (See Figure 20.) Use either one duplex SC connector, or
two simplex SC connectors, and observe the correct relationship between the receive
(RX) and transmit (TX) ports on the FEIP2-2FX and your repeater.
Figure 19 Connecting MII or RJ-45 Cables (FEIP2-2TX Shown, Horizontal Orientation)
Note Each Fast Ethernet 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 FE interface.
H9784
MII cable
To transceiver,
repeater, or DTE
To repeater
or DTE
0
FAST ETHERNET
RJ-45 cable
or
0
FAST ETHERNET