The Catalyst 3900 is now enhanced with a four-port copper and a four-port fiber expansion module, which can be inserted into one of the two available Catalyst 3900 expansion slots. With these modules, a single Catalyst 3900 can support up to 28 Token Ring ports. Up to eight units can be stacked using the optional stack port module and the Catalyst Matrix switch, for a total configuration of 224 Token Ring ports
Ports
4 ports
Data Transfer
16,000 Kbps
Wireless
Internal External
Modem Type
Device Type
Connectivity Technology
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