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.
CGI is significant whenever you require to retain state information about a user, or run an application which communicates with the server. Things like guestbook's, Chat clients, d
A ring counter consisting of five Flip-Flops will have ? Ans. A ring counter have 5 states while consisting of Five Flip-Flops.
What is a union ? A union, like a structure, is a derived type. Unions follow the same syntax as structures but have members that share storage. A union type defines a set of alt
Explain Garbage collection In this method two passes are made over the memory to identify new areas. In the first pass it traverses all pointers pointing to allocated areas an
JK, SR, D master FF 1)draw block diagram 2) combinational circuits using NOR & NAND gate thank you
Define the term- Analysis The analysis involves some or all of the following stages: Fact finding - this is usually done in four ways. Understanding the current syst
Explain the operation of 8:1 multiplexer. Ans: In this multiplexer 8 Input and 1 Output and three select lines i.e. S 2 , S 1 , S 0 are given. Any one of the inputs will be
Scientific Applications/Image processing Major of concurrent processing applications from science and other academic disciplines, are mostly have based on numerical simulations
LAN is a privately - owned computer networks confined to small geographical area, like a factory or an office widely used to connect office PCs to share resources and information.
What is reentrant tasks and functions Tasks and functions without optional keyword automatic are static , with all declared items being statically allocated. These items will b
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