Cabletron Systems DLE23-MA, DLE33-MA, DLE22-MA Configuring an DELFX-UI or DELF3-UI in Port 25 or

High Speed Interface Configuration Menu Screen (DLE2X-MA Only)

that only devices that operate at 100 Mbps can communicate with that port. Section 5.23.5 describes how to enable or disable advertised modes.

5.23.1Configuring an DELFX-UI or DELF3-UI in Port 25 or 26

When an DELFX-UI or DELF3-UI is installed in port 25 or 26, it must be manually set to operate in the same technology as the device at the other end of the connected segment. Section 5.23.2 provides instructions for manually configuring the port with an DELFX-UI or DELF3-UI interface.

5.23.2Setting the DELFX-UI and DELF3-UI Operational Mode

Use this field to set the active technology. This field toggles between 100BASE-FX and 100BASE-FXFD (full duplex). To set the active technology through Local Management, proceed as follows:

1.Use the arrow keys to highlight the Desired Oper. Mode field.

2.Use the SPACE bar to select 100Base-FXor 100Base-FXFD(full duplex).

3.Press ENTER. The port now operates in the chosen mode.

4.Use the arrow keys to highlight the SAVE command. Press ENTER. The message “SAVED OK” displays and Local Management saves the changes to memory.

5.23.3 Configuring an DELTX-UI in Port 25 or 26

In normal operation, a port (25 or 26) with an DELTX-UI interface automatically establishes a link with the device at the other end of the segment and no user setup is required. Section 5.23.4 and Section 5.23.5 provide instructions for manually configuring the port with an DELTX-UI installed.

5.23.4 Setting the DELTX-UI Operational Mode

Use this field to set the active technology. This field steps between Auto-Negotiation, 10BASE-T, 10BASE-TFD (full duplex), 100BASE-TX, and 100BASE-TXFD (full duplex). If Auto-Negotiation is

DLE22-MA,DLE32-MA,DLE23-MA and DLE33-MA User’s Guide 5-75