Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the working of thousand line exchanges by using a combination of uniselectors and two motion selectors.
The schematic diagram for such an exchange is demonstrated in Fig. All subscribers is connected to a single rotary pre-selector switch at the exchange, and the outputs from this switch being linked to a bank of two-motion switches termed as 'group selectors'. The outputs from the pre-selector switches of an entire group of subscribers are connected together in parallel such as group of subscribers share a single bank of group selectors. If a subscriber lifts his telephone then the cradle switch causes a circuit to be completed reverse to the telephone exchange, signaling which the subscriber wants to make a call. It is causes the pre-selector switch to step around till it find a free group selector. The pre-selector switch then stops in such position and the group selector are 'seized' through the subscriber wishing to make a call.
FIG - 1000 Line Exchange
In 1000 line exchange, all subscribers have a 3 digit identification number starting from 000 to 999. By seizing the group selector, the subscriber dials his first digit and the selector switch moves up to the suitable row on the switch contact array. All final selectors have the possibility of connection to 100 lines. Therefore the 1000 lines are divided in 10 groups of 100 each, the group being specified by the first digit in the subscriber's number. Therefore the vertical motion of the group selector selects a last selector in the group related with the first digit dialed. Each single row of contacts or levels, of the group selector is associated to a bank of last selectors associated with a particular group of 100 line numbers. Containing dialed the first digit to select the suitable group, the group selector arm after that automatically rotates in the vertical direction till it finds a free last selector. In the final selector, both directions of motion are in the control of the subscriber's dial and after dialing two additional digits, connection is established, giving the called subscriber's to answer his telephone.
What is Assembler A macro-assembler or assembler normally forms a part of operating system. That translates an assembly language program into machine language program.
Why is the Wait-For-Memory-Function-Completed step required when reading from or writing to the main memory? WMFC step is needed for the write control signal / read control si
What is RAM Bus technology? The key feature of RAM bus technology is a fast signalling method used to transfer information among chips. Instead of using signals that have volta
How would ASP and ASP.NET apps run at the same time on the same server? Both ASP and ASP.net can be run at similar server, becuase IIS has the capability to respond/serve both
5-pin DIN connector: It is the connector of conventional keyboard which have 5 pins (2 IN, 2 OUT and one ground pin) used for transfer and synchronization.
Give brief summary of common aspects found in spreadsheets - It's made up of columns and rows; every row is identified by a number and every column is identified with a letter
Q. How Dreamweaver Work in Layout View? Dreamweaver has two visual design views-Standard view and Layout view. You will start by working in Layout view, which allows you to dra
Processor Technology: Computers consist of electronic components assembled in a design or "architecture" that will perform necessary functions of input, output, computation an
An event handler is a part of a computer program formed to tell the program how to act in response to a definite event.
#questifind core radius for single mode operation at 850nm in SI fibre with n1=1.480 & n2=1.47 what is NAon..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd