The Management Card functions as the JumboSwitch’s central processing unit and the Main Card is the control bus access point for JumboSwitch management. There are two types of Main & Management Interface Cards: individual and combination. JumboSwitch 2U & 4U chassis options use individual cards and 1U & 2S options use the “combo card."
Designed specifically for 2U chassis options, the JumboSwitch Main (TC3840-4) and Management (TC3840-2) plug-in cards provide layer 2 switching functionalities and the central switching fabric for JumboSwitch interface cards. Each 2U chassis must include both a Main and a Management card to function properly.
All JumboSwitches must include Main and Management plug-in cards to operate properly. The Management Card functions as the JumboSwitch’s central processing unit and the Main Card is the control bus access point for JumboSwitch management. Together, these cards provide the "intelligence" for the entire JumboSwitch network platform.
Because the Model TC3840-4 Main Card also provides two SFP Gigabit ports and four copper 10/100/1000 Ethernet ports, it benefits users by enabling space for another interface card or eliminating the need for an additional Ethernet card. (The JumboSwitch 2U chassis can hold 1 main, 1 management and up to 2 interface cards).