In such a stack it is necessary to provide interconnection between the stacked devices via what is known as a cascade connection in order to allow users connected to {HEAD ~ one device} to communicate with {TAIL ~ users} connected to other devices 
to communicate with
In such a stack it is necessary to provide interconnection between the stacked devices via what is known as a cascade connection in order to allow users connected to { HEAD ~ one device } to communicate with { TAIL ~ users } connected to other devices
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH