High Speed Interface Configuration Screen (6H123-50 Only)6H123-50 and 6H133-37 User’s Guide5-75In Auto-Negotiation, the FE-100TX negotiates to the highest commondenominator of the two interfaces. The order of priority of negotiation is100Base-TXFD, 100Base-TX, 10Base-TFD, and 10Base-T.Advertised Ability (Selectable)During auto-negotiation, the FE-100TX informs the device at the otherend of the segment about its capabilities. The capabilities of a slot (5 or 6)with an FE-100TX installed are 10Base-T, 10Base-TFD (full duplexmode), 100Base-TX and 100Base-TXFD (full duplex mode). In normaloperation, with all capabilities enabled, the FE-100TX “advertises” that ithas the ability to operate in any mode. The Network Manager may chooseto set up the port so that only a portion of the available capabilities areadvertised and the others are disabled. For example, only 100Base-TXand 100Base-TXFD might be enabled so that only devices that operate at100 Mbps can communicate with that port. Section 5.21.2.2 describeshow to enable or disable advertised modes.5.21.1 Configuring an FE-100FX or FE-100F3When an FE-100FX or FE-100F3 is installed in slot 5 or 6, it must bemanually set to operate in the same technology as the device at the otherend of the connected segment. Section 5.21.1.1 provides instructions formanually configuring the port slot with an FE-100FX or FE-100F3interface.5.21.1.1 Setting the FE-100FX or FE-100F3Operational ModeUse the Desired Oper. Mode field to set the active technology. This fieldtoggles between 100Base-FX and 100Base-FXFD (full duplex). To set theactive 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-FX or 100Base-FXFD (fullduplex).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 savesthe changes to memory.
