Cabling
Expansion
Modules
remote end node. For example, you cannot connect a fiber optic port with a maximum distance of 2 kilometers and an operating wavelength of 1310 nm to another fiber optic port that has a maximum distance of 40 kilometers (24.8 miles) and an operating wavelength of 1550 nm. For fiber optic ports specifications, refer to
If your network topology will contain a loop where two or more network devices can communicate with each other over more than one data path, do not connect the network cables forming the loop until after you have activated a spanning tree protocol on the switch. Data loops can adversely affect network performance. For information on spanning tree, refer to the
If you are creating a port trunk, do not connect the cables of the trunk to the switch until you after have configured the trunk using the switch’s management software. Connecting the trunk cables to the switch before you have configured the software will result in a data loop, which can adversely affect network performance. For instructions on how to configure a port trunk, refer to the
If you installed a fiber optic or twisted pair expansion module, stacking module, GBIC module, or SFP module, connect the data cable to the port on the module.
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