FCM9002 USER MANUAL
76-02-095 Rev.B
Page 92 of 145
Note, some cheaper SFP modules are not correctly programmed and in this case
the type will be displayed as UNKNOWN.
4.4.2.4 Speed
The Speed setting sets the operating speed of the port with valid options of:
100M
100 Base FX Fast Ethernet
1000M
1000 Base X Gigabit Ethernet
Auto
In the auto mode, the SFP module is read and the port
parameters are set according to the SFP type installed. If a
1000BaseX SFP is installed the port will operate at 1000M,
whilst if a 100BaseFX or OC3 SFP is installed, the port will
operate at 100M.
4.4.2.5 Duplex
The Duplex parameter is valid for 100M operation only, 1000M ports must
operate in full duplex modes.
Half
Half Duplex
Full
Full Duplex
4.4.2.6 Auto Negotiation
Auto Negotiation allows the port to automatically determine the best operating
parameters for the port. If both link partners support auto negotiation then they
will select the best mode that is supported by both devices.
1000M operation requires Auto Negotiation is enabled, whilst 100M operation
does not support auto negotiation.
