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!
With neat diagrams explain the configuration of a step-by-step switching system.
Schematic diagram for such an exchange is given in Figure. Every subscriber is connected to a single rotary pre-selector switch at the exchange, outputs from this switch being connected to a bank of two-motion switches called "group selectors". The out-puts from pre-selector switches of a whole group of subscribers are connected together in parallel as that group of subscribers share a single bank of group selectors. When a subscriber lifts his telephone, cradle switch causes a circuit to be completed back to telephone exchange, signalling that subscriber wishes to make a call. This causes pre-selector switch to step around until it finds a free group selector. Pre-selector switch then stop in this position and group selector is 'seized' by subscriber wishing to make a call.
On seizing group selector, the subscriber dials his first digit and selector switch moves up to the appropriate row on switch contact array. Every final selector has the possibility of connection to 100 lines. 1000 lines are thus divided into 10 groups of 100 each, group being identified by the first digit in the subscriber's number. Vertical motion of the group selector hence selects a final selector in the group associated with first digit dialled. Every individual row of contacts, or levels, of group selector is connected to a bank of final selectors associated with a specific group of 100line numbers. Having dialled first digit to select appropriate group, group selector arm then automatically rotates in vertical direction until it finds a free final selector. In final selector, both directions of motion are under the control of subscriber's dial and after dealing two further digits, connection is established, providing called subscriber's to answer his telephone.
Illustration of embedded web technology An oven comprise an embedded processor. Owner can use a web ready mobile phone anywhere to control the oven remotely. By accessing a
Q. Draw and explain the working of a negative clamping circuit. The clamping network shown above is a negative clamping circuit that will clamp the input signal to a negative d
Q. What will be the effects of an increase in real national income on the interest rate? Answer: An enhance in real national income will increase the interest rate. If
Process The rectangle symbol is used to represent the process operations as shown below. MOV A, B
Q. Residential wiring and safety considerations? Residential electric power service commonly consists of a three-wire ac system supplied by the local power company. A distribut
Data rates in PSTNs: A voice channel in a PSTN is band limited with a nominal bandwidth of 3.1 kHz. A first-cut estimate of this can be attained from Nyquist's theorem that app
Q. Determine the bits required for a D/A converter to detect 1-V change when V ref = 15 V.
Q. It is desired to cut a λ/4 length of RG58A/U cable (ε r = 2.3) at 150MHz.What is the physical length of this cable?
Thevenin' s Theorem Thevenins Theorem states: "Any linear circuit containing several energy source and resistances can be replaced by just a Single Voltage in series with a
Q. Find the output function Y for the logic circuits of Figure (a) and (b). An AOI (AND-OR-INVERT) gate is shown in Figure with its two possible realizations. Obtain the output
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