Configuring Modules - 3Com 3C780 - LinkBuilder FDDI Base Unit User Manual

3-16 Configuring the Hub
All three types of port modules can be installed in slot 1. The type of module
you install depends on the medium you are using to connect the hub to the next
node.
Table 3-5 shows how to configure each module for the type of attachment
desired and what additional equipment or action is necessary to complete the
connection. (Refer to the section "Setting Attachment Port Configurations" in
Chapter 4 for information about configuring the attachment ports.)
For example, if you want to establish either a dual attachment or a dual homed
connection, configure the module's attachment ports as B/A. For a single
attachment connection, configure the module's attachment ports as S/M. For a
null attachment, set the attachment ports as M/M.
To discover the configuration of the attachment ports on the module in slot 1,
check the ATTACH LED display on the management module or enter the show
attach command. The ATTACH LED is lit whenever there is a module
installed in slot 1.
Table 3-5. Configuring Modules
Module
Fiber
STP
(continued)
Attachment
Attachment Port
Type Configuration Required
Dual B/A
Dual homing B/A
Single S/M
Null M/M
Dual B/A
Dual homing B/A
Single S/M
Null M/M
Additional
Equipment
None
None
None
None
2 Cascade connectors
2 Cascade connectors
1 Cascade connector
None