Cisco CX-FEIP-2TX= Installation and con?guration User's Guide download pdf (Page 24)

24 Fast Ethernet Interface Processor (FEIP) Installation and Conﬁguration

FEIP Installation

Connect RJ-45, SC (FEIP-1FX or -2FX), or MII cables as follows:

Step 1 If you have MII connections, attach an MII cable directly to the MII port on the FEIP or

attach a 100BASE-T transceiver, with the media appropriate to your application, to the

MII port on the FEIP. (See Figure 18 for FEIP-2TX or Figure 19 for FEIP-2FX.)

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”).

If you have RJ-45 connections, attach the Category 5 UTP cable directly to one of the

RJ-45 ports on the FEIP. (See Figure 18 for FEIP-2TX or Figure 19 for FEIP-2FX.) The

FEIP is an end station device and not a repeater. You must connect the port adapter to a

repeater or hub.

If you have an SC connection (FEIP-1FX or -2FX), attach a cable directly to the SC port

on one of the port adapters. (See Figure 19.) 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 port adapter and your repeater.

Figure 18 Connecting MII or RJ-45 Cables (FEIP-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 port adapter.

H9784

MII cable

To transceiver,

repeater, or DTE

To repeater

or DTE

FAST ETHERNET

RJ-45 cable

FAST ETHERNET

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Cisco CX-FEIP-2TX= Installation and con?guration User's Guide Page 24