INTERNAL COMPONENTS OF ROUTER

These are the internal components of Router. Check out the BLOCK DIAGRAM of router system board.

ROUTER INTERFACES

LAN interface (Ethernet). Some models are equipped with built-in RJ45 connector for 10Mbps, 100Mbps or 10BaseT. One (Attachment Interface Unit) is equipped with a 15-pin AUI anymore.

For the WAN interface or leased line there are 60 pin female cables.

A Console port for initial configuration of the routers.

For remote configuration, router has auxiliary ports.

DEFINITION OF A ROUTER

Router is an internetworking component, that connects networks which are at different geographical locations/connect many networks and does packet filtering. 

But also there are many companies in the makings of networking components which is also includes routers.

So, there are two basic types of router fixed or non-modular routers and modular routers.

In modular router the interfaces are not fixed so that we will be able to installed cards later on router which are available easily and widely. On the other hand, non-modular router the interfaces are fixed, we cannot able to add ports/interfaces later.

Above picture is an example of ROUTER.