Transmission Mode

Transmission Mode

"Transmission  Mode  is  used  to  define  the  direction  of  the  signal  flow  between  the linked devices" o    Communication is Unidirectional o    Only one of the two stations can transmit o    Other can only receive    Examples:  KEYBOARDS (Only Input), Monitors (Only Output) ™  Half - Duplex Mode Each station can both transmit and receive but not at the same time o    When one device is sending the other can only receive and vice versa o    Lets understand the concept by using an example    One Lane Road with two directional traffic    When cars are traveling in one direction, cars going the other way must wait o    Full Channel capacity is allocated to whatever entity that is transmitting at a specific time    Walkie Talkies ™  Full Duplex (Duplex) o    Both stations can transmit and receive simultaneously o    Two way street with traffic flowing in both directions at the same time o    Signals traveling in either direction share the capacity of the link o    The sharing can take place in two ways: o    Either the link must contain two physically separate transmission paths:    One for sending   and    One for receiving o    Capacity of the channel is divided between signals traveling in opposite directions    EXAMPLE -Telephone Network When  two  people  are  communicating  via  a  telephone  line,  both  can  talk and listen at the same time