FDDI Connectivity
18
FDDI Connectivity
The FDDI Module for the Switch 2000 uses a dual-port FDDI interface, with two FSD (fixed shroud duplex) connec-
tors labeled MIC A and MIC B (media interface connector).
•
Either MIC A or MIC B is used to attach the switch to a single attach station (SAS).
•
Both MIC A and MIC B are used in one of the following ways:
•
To attach the switch as a dual attach station (DAS)
•
To attach the switch to two single attach stations
•
To set up the switch as a dual-homed device
You can also use an optical bypass switch to prevent the FDDI ring from “wrapping” if the switch connected as a
DAS loses power or if the FDDI port becomes available. For more information on this topic, refer to the installation
guide provided for the FDDI Module.
Example of the Switch 2000 as a Dual-Attachment Station (DAS)
Adjacent DAS
B
A
A
&ROM
-)# "
&ROM
-)# !
Adjacent DAS
Adjacent DAS
"
sd4pdf.fm5 Page 18 Thursday, February 20, 1997 4:31 PM
