Space switching
When we consider Space
switching there is a dedicated path (two parallel wires) established between
the caller and called subscribers for the entire duration of call in the
exchange by the switch.
It was originally designed for analog networks, but is used currently in both
digital and analog switching. This means then the conversation is
going on the switch create the link between two sides. At that time only that call is going in the path.
 |
| Space switching |
Time
switching
When we
consider Time switching, it was coming when the PCM is introduced. This switching system involves the sharing of
cross points for shorter periods of time. It uses to interchange time slots.
When the E1 are coming to the Switch, it routs the path accordion to the
number. In this switching all the components are electronics. Therefore, in
time division switching, greater savings in cross points can be achieved.
Hence, by using dynamic control mechanisms, a switching element can be assigned
to many inlet-outlet pairs for few microseconds.
Throughout this article I hope you may get some thing.
This provides very basic explanation and future will cover more. Comments are well come. Thank you.
