What is the time of the slot?
In the computer network, the slot time is the time that should pass between the first sending of the electronic pulse and the second follow. It is equal to twice the time required for electronic pulse to travel over the theoretical maximum distance between two devices in the network. Slot time must only be taken into account during the transfer of half duplex.
A computer network is a group of computers and other devices associated with cable or wireless connections. This allows you to share communication and resources between different devices known as nodes. The network interface controller, such as a network interface card, network adapter or LAN adapter, allows physical access to the node via the network.
When the information is sent from one node to another, the network interface controller must take into account the time of the slot. Since the slot time is twice the time required to travel over the network, the pulse can never take longer than the time to get to the destination. After the first pulse transmission is waitingNo network interface at least the length of the slot time before it transmits the second pulse.
This is important because instead of a late collision, it creates a local collision. The local collision is one that occurs between two pulses in the network interface controller. This type of collision can be detected by a network interface controller, which then deals with the problem. There is a late collision in the wire and may not be detectable using a network interface controller.
Slot time is only important in half duplex communication system. Any system composed of devices that can communicate with each other in both directions is called a duplex system. In a half -duplex system, communication can only move in one direction at a time. This means that if one node sends a signal, the other cannot answer until the first completion of the sending. Walkie-Talkie is a well-known example of this kind of system.
the time of the slot of half duplex system is an importantMountained because the nodes allow you to know how long to wait for you to respond to the signal. In a fully duplex communication system, information can move in both directions at the same time without interference. In this case, the slots time is irrelevant because the nodes do not have to wait for each other to respond. For this reason, they are fully duplex systems.