Podcast
Questions and Answers
How are signals switched in a digital switching system?
How are signals switched in a digital switching system?
What is the common media on which digital signals are time multiplexed in a digital switching system?
What is the common media on which digital signals are time multiplexed in a digital switching system?
How are calls switched in a digital switching system based on the provided text?
How are calls switched in a digital switching system based on the provided text?
What is the popular name for a Time Division Multiplex Digital Switching System?
What is the popular name for a Time Division Multiplex Digital Switching System?
Signup and view all the answers
In the context of a digital switch, what is the purpose of space stages?
In the context of a digital switch, what is the purpose of space stages?
Signup and view all the answers
What is the purpose of the Digital Space Switch?
What is the purpose of the Digital Space Switch?
Signup and view all the answers
How does Time Switching differ from Space Switching?
How does Time Switching differ from Space Switching?
Signup and view all the answers
What does each cross point in the Digital Space Switch consist of?
What does each cross point in the Digital Space Switch consist of?
Signup and view all the answers
How does the control memory in the Digital Space Switch function?
How does the control memory in the Digital Space Switch function?
Signup and view all the answers
What is the function of the cross point matrix in Digital Space Switching?
What is the function of the cross point matrix in Digital Space Switching?
Signup and view all the answers
Study Notes
Digital Switching
- Digital signals are switched using time-division multiplexing (TDM)
- TDM combines multiple digital signals onto a single transmission medium
- The common media for TDM in digital switching systems is a high-speed digital bus
- Time slots are assigned to each call
- Each time slot represents a specific interval in the transmission cycle
- Calls are switched by directing the time slots to the appropriate destination
- The common name for a TDM digital switching system is a Time Division Multiplex (TDM) switch
Space Switching
- In a digital switch, space stages are used to switch calls between different time slots
- Enables flexible routing of calls between various inputs and outputs
- Provides connections between different time slots on the same digital bus
- Digital Space Switch is a key component for switching multiple calls simultaneously
Digital Space Switch
- The Digital Space Switch acts as a cross point matrix—a grid of electronic switches
- Each cross point is composed of a transistor or a gate
- Control memory manages the switch's behavior
- Control memory stores instructions for connecting specific inputs to outputs
- The Digital Space Switch allows the time slots to be routed to the appropriate destination
Time Switching vs. Space Switching
- Time switching works by rearranging the order of time slots
- Space switching physically connects the time slots through a cross-point matrix
- Both methods play a crucial role in routing calls in a digital switching system
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on digital switching systems which involve switching signals in digital form, including speech and data. Learn about time multiplexing, PCM highways, and different modes of switching digitalised speech samples.
