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Toslink is an optical fiber connection which is mostly for a consumer audio equipment which will carry digitalized audio streams between the parts such as the CD Players and the MiniDisc. It usually uses inexpensive 1 mm plastic optical fiber which may allow low cost production. It is much more popular than the “copper-based cabling”, since the hip surrounding the newer fiber technology. This fiber was created by Toshiba to connect their CD players to their radio receivers. But recently, it was found that the same function is present on all the CD players, irrespective of the manufacturer. To retain, some amount of originality, Toshiba’s mechanics are employed to send digital audio stream to MiniDisc recorders.

There are several apects about Toslink which may be confusing for potential customers. There are some points that are listed below which will help resolve all the confusions about this particular brand. Some of those points are listed as below:

Toslink is actually Toshiba-Link- It is the brainchild and registered trademark of the Japanese electronic company, Toshiba. Although Toslink is Toshiba-Link, its generic name is EIAJ optical

Is used for audio equipment- The usual users of this optical cable are pieces of equipment that carry a digital audio streams between components. The audio cable may support different physical standards and media formats. To reduce the electrical noise, this cable was introduced to reduce that.

Is a fiber connection system- the cable is made of either high or inexpensive quality fiber. It may use 1 mm of inexpensive plastic fiber or use expensive, multiple strands of plastic fibers. The usual length of the fiber is limited to a length of 5 meters. In the absence of a signal booster, the transmission can go upto 10 meters.

Is made up of four components- The cable is composed of the transmission module, the optical fiber cable, the optical connectors and the receiving module. The transmission module turns electrical signals into optical signals. The optical fiber cable is the physical transmission line. The optical connector connects the transmission module and the receiving module. The receiving module converts the optical signals back into electrical signals.

Connect a Toslink cable to a Mini-Toslink jack- A mini-Toslink jack may look like a 3.5 mm stereo mini-jack but thats where the similarity ends. The jack is 0.5 mm longer and the tip has a finger connection. It is common amongst Apple computers and minidisc players.

The bandwidth and application have a lot to do with what the cable is made out of. At times, it can be made of quartz glass optical fibers but as mentioned they can usually be made of either very expensive or cheap fibers. Although the old wires could run upto a mere 5 or 10 meter, the newer cables are capable of running upto 100 feet or more. The audio signal from a cable was limited to 48 Khz at 20 bits, but now has been increased to support modern formats. There are a few exceptions, however. They are DTS HD audio streams, Dolby Digital Plus and TrueHD.

The chief purpose of the SPDIF cable is mostly for auditory purposes. SPDIF is the acronym of Sony/Philips Digital Interconnect Format. The cable can also be referred to as S/P-DIF or S/PDIF or IEC 958 type 2. The cable can transmit stereo digital audio signals from PC audio cards, DVD Players, CD Players, car audio system or any audio system that is capable of transmitting or receiving stereo digital audio through a modified optical or electrical cable.

The S/PDIF is also known as the IEC 60958 type II and it is defined by the IEC 60958 standard. This cable is a single insulated cable, that includes two split analog cables with it. When the data is transmitted, the sending stream is in manifested in the form of 32-bit data words. The data frame in the stream consists of a total of 384 words. Out of the total number of words (384) 192 words are transmitted into an “A” stereo channel, and 192 data words are transmitted for “B” stereo channel. A conventional S/PDIF I/O connection array is one that is made up of 1 coaxial SPDIF input, 1 coaxial output, 2 optical SPDIF inputs and 1 optical SPDIF output.

To transmit the stereo digital audio signal on a device, using the cable to transmit is not too difficult. There are some steps that can be taken to connect a SPDIF cable successfully. To do it, first, one needs to remove the power chords from the devices one needs to connect. Next, the device needs to be checked thoroughly to find the cable connections. This is to ensure that both devices have their own SPDIF ports. To make this easier for the users, the cables are marked as SPDIF Optical or SPDIF. Yet, some other devices will come with both, but plugging a SPDIF Optical gives a better sound quality. One point to be kept in mind: when one uses a SPDIF port, they should connect it to a SPDIF cable. Similarly when one is using a SPDIF Optical port, they should connect it to SPDIF Optical cable only.

S/PDIF cable has been designed in such a format that it used to transmit 20-bit audio information along with other-related information. This cable transmits high-quality audio sound from system to which it can be connected all because of its interface.

The S/PDIF cable used to transport information via the jacks and RCA plugs will have a coaxial type of shield that opposes and grounds all of the audio spectra noise including brown, pink and white. The best cables are the optical fiber cables. They have numerous useful features such as they adequate sound-proofing system and they have a lot of space in terms of the amount of feet, the cable can accomodate. The highlight of these cables are the noise-immunity of the digital transference as compared to the user analog transmissions. So go ahead and invest in a smart pair of cables and enhance the quality of your sound system. The purchase is totally worth every penny.

SCADA stands for Supervisory Control and Data Acquisition, which are found in many business ventures. They are mostly used in applications like distributing power for electrical power distribution grids and traffic signals. Some fields of engineering such as the civil engineering branch uses these systems.

Functions of SCADA

These systems often control and manage a number of switches and pumps in the applications that are being controlled by these systems. This may often be referred to as the RTU- Remote Telemetry Unit. The data is provided to users through RTU. The Unit sends data to the user or the operator to prompt a assignment to be carried out. No machine is not capable of performing any task on its own. Usually, it requires the help of an operator to help it complete the process. There are many uses of Data Acqusition, which are applicable and observed in daily life. Some of these instances are listed as follows:

Chemical industry

Waste water treatment

Traffic Lights

Paper and mill Industries

Automative Industry

Food processing

Not only these, but the SCADA system is at times, used in some prominent, big industries which are listed as below:

Gas

Mining

Oil

Power Plants

There is some confusion, related to the differences between the Distributed Control Systems and the SCADA systems. To put it in laymen’s terms, the latter is a system that mostly co-ordinates but does not control the processes in the real time. This technology is fairly advanced but it is not entirely fool-proof. It has some shortcomings too, such as handle recent technologies such as newer telecommunication, or allowing reliable, or low latency, high speed communications over enormous areas. There are not a great number of differences between Distributed Control Systems and SCADA and those minor differences can be overlooked.

This system chiefly incorporate a distributed database, also known as a tag database. This form of database is comprised mainly of points or tags. A point is shown by a single input or output value controlled or monitored by the system. Points can be soft or hard. A soft point is the result of mathematical calculations which are applied, whereas hard points are usually a result of actual inputs that exists within the system. Points are usually maintained in value-timesnap pairs, such as a value and the timesnap in which it was recorded or added together.

Of course every new technology has some pros and cons but SCADA has some vulnerabilities which may outnumber the pros. Some of them are listed as below:

1)It uses open system architecture to distribute functionality across Wide Area Network communications for communications equipment and master station

2)They are present everywhere. Web-based products, web portals and thin clients are becoming more popular with major vendors

3)The transparency makes it vulnerable to cyber-terrorism. Breakdown of the system may cause loss of data.

4)There arent many administrative, physical and technical security locks in SCADA systems.

The RJ-11 connector has 6 connector position, but it uses only two or four, of the six of them. The wiring of this connector comes in 2 standard assortments namely the flat-satin cable, also known as the untwisted and the UTP; Unshielded Twisted Pair. It is the most recognized among the jacks, because it is mostly used in all single line handset jacks, also known as Plain Old Telephone service (POTS). The connector is mostly used in most of the offices and homes of North America and other countries. There are other similar jacks such as the RJ-25 which is used for a three line jack, RJ-61 which is used for a four line handset jack, RJ-14 for a two line handset jack and so on.

As RJ-11 connector uses two or four, out of the given six positions, 6P4C, wiring standards, it indicates that out of the six positions, only four have contacts. Contacts is translated as having both the wires connected to them. The conventional form of standard wiring are used for practical purposes to make sure that the plug fits in smoothly and perfectly. The other left over wires an be used for applications, for instance, they can be used to prevent the pulse dial telephone ringing from ringing the addition phone bells or powering an LED ring-indicator and so on.

In a powered-up state, Pins #5 (yellow- old color code/ orange- new color code) and #2 (black- old color code /white with orange stripe-new color code) may carry either AC or DC power or low voltage from a central transformer plugged in. It is usually plugged near a jack and the aforementioned jack supplies power to each of the other jacks through a circuit. In most of the times, the telephone lines directly supply a huge amount of power for most of the telephone terminals. The telephones of the olden days, such as the Trimline Phone and the old Western Empress Princess, used to contain lights, and need more energy than the usual telephone line supplies. The dial lights need 6.3 volts and the usual transformer output ~5 volts (for a larger battery life). It also depends on whether the wire is of the old or new color code convention (read left to right, while the jack faces towards the person), the positive and negative terminals are: Pin #3 which is a negative terminal ( blue-new color code/red-old color code) and Pin #4 which is a positive terminal (white with blue stripe-new color code/green-old color code). Some of the commonly used Registered Jacks are listed as below:

RJ-45- This connector is similar to RJ-11 connector but is larger and comprises of eight conductors. It is usually used to connect telephone cables to a telephone set or to a modem. It uses an unshielded twisted pair (UTP) and is used in computer networks.

Straight Tip (ST)- A straight tip connector is a fiber-opted connector used with multimode fiber. The connector has a 2.5 mm shaft and bayonet locking ring and allows instant connection and disconnection of 124 micron multi-mode fiber.

The acronym for LC Connector is Lucent connector. It is a small form-optic connector which is mainly made of fiber. It resembles the small standard ceramic and usually uses a 1.25mm ferule, which is half of the ST size. In other cases, it has to be a standard ceramic ferrule connector. It was developed by Lucent Technologies for use in TelCo environments and is greatly favored for single mode transmission. It has been standardized as the Fiber Optic Connector Intermateability Standards (FOCIS 10) in EIA/TIA-604-10.

The LC Connector have been incorporated with some common and proven technologies for the system to deliver as being easy to carry out the fiber optic interface. The most preferred telephone plug RJ-45 helps to provide support providing mechanism for, both the connecting system, and the time tested ceramic ferrule to terminate the fiber. These connectors include features such as single set design, having detachable clips for duplex and simple connectors and polarized. It complies with industrial standards, is half the dimension of normal connectors and having the push and pull mechanism which resemble RJ connectors.

There are two versions available. The first one is the LC Unibody jumper connector which is designed for 1.6-2.0 mm cordage and 3.0 mm cordage. The second version is the “behind-the-wall” or BTW which is designed to mount on 0.9 milimeter buffered fiber. LC connectors are offered with pre-radiused ferrules. They have numerous features and applications which are listed as below:

Features:

One piece design

Pull proof for jumper

RJ Style push and pull housing

Polarized

Anti-snag latch for BTW and jumper

PC finish

Standards compliant

Removable clips for simplex and duplex connectors

Pre-radiused connectors available

1/2 the size of the standard connectors

There are various applications too for LC connector. For instance they are used in local area networks, data processing networks, tele-communication, premises distribution benefits, cable television and so on. A lucent connector is available in blue and beige color shades and it can be used in CATV, LAN, WAN and MAN applications. One even has the option to customize, where one can find some connectors have features and make it suitable for certain functions. It has the facility to accomodate various types of cable fibers. It has the ability to accomodate various types of cable fibres. The types of cable that can be accomodated are 2.4mm, 1.6mm, 900um and 2.9mm and so on. The main body is made of many parts such as capillary (Zirconia, a type of ceramic), tubing, flange (brass), spring (stainless steel), plug frame and stopper. The crimping is made of aluminum alloy plus Sumitube.

There are numerous benefits with Lucent connector. It has double density, maintains optical contact, it helps maintain receive/transmit direction, it helps guarantee high repeatability, helps to reduce cross-connect and improves durability. It is fielded mountable and the necessary tools are included in the 1032 B kit combined with latest version, D182959. The version comes with connector holders, polishing tool and microscope adapter.

The BNC connector also known as Bayonet Neill-Concelman or is a Radio Frequency (RF) connector used as coaxial cable, is bascially used to connect a television or a radio and other radio-frequency electronic equipment. It is used in frequencies which are below 3 Ghz. The connector is used for RF signal connections. It is an option to the RCA connector when used for composite video on mainstream video devices, although numerous consumer electronic devices with RCA jacks are usually used with BNC-only video equipment via simple adapter. BNC connector are commonly used on 10base2 thin Ethernet networks, both on cable interactions and network cards. The TNC (threaded) connector is mostly used for standard performances at higher frequencies than used with the BNC connector.

The name of the connector is derived from the collaboration of two things. They are listed as below:

1)The connecting technology that has been employed behind the working of the connector

2)The names of the two inventors of the device. Those two inventors were Carl Concelman and Paul Neill, both of whom worked in the Bell Labs. Their main purpose was to develop a connector that used the principle of bayonet mount mechanism for locking.

The connector was a practical experiment, based on the research of Octavio M. Salati. Neill and Concelman perfected an earlier design and created a connector that has been used in numerous applications over the last several decades. It has been organized to process both the serial digital inter-face and the analog video broadcast. It is also capable of audio-interface managing transmissions.

As mentioned before the BNC connector is used for RF signal connections, in digital and analog video broadcast. Apart from that, it is useful for aviation electronics, amateur radio antenna connections and other types of electronic test equipments and so on. They exist in 50 and 75 ohm versions. During its early days, all the connectors were 50 ohm and were joined together with different cables and the differences in the wires were not very noticeable at a lower frequency. The newer ones, i.e., the 75 ohm category may be recognized by the absent or the reduced dielectric in the mating ends. The different wires can be mated with each other, although the differences may lead to signal reflections. The 75 ohm connectors are mostly used for DS3 Telco central office applications and are also used in video and 50 ohm is used for RF and data.

There are different types of connectors which are similar to BNC connector. They are briefly listed as follows:

A miniature version of BNC, known as TNC is also available in the market. It is superior to BNC and at microwave frequencies

Triaxial BNC connector, which was mostly used in NIM electronics. These have been replaced by LEMO connectors which permit higher density.

In USSR, the connectors were replicated as SR-75 which is Russian:-75 and SR-50 which is Russian: -50

The computer is a very important part of our lives. It is unimaginable to imagine lives without this machine. Given its importance, utmost care must be taken of it. People usually spend time and money on the monitor or to keep the machine free of viruses but what they forget to take care of the most important part of any computer. This component is the Central Processing Unit or the CPU. In school, children are taught that the CPU is the brain of the computer and all the important functions of the computer take place there. The CPU is also a machine and aspects of it must be scrutinized. For instance, if there is some internal problem, it is a sound idea to check the CPU temperature. This problem may come to light when the heat or the other fans in the tower stop working. This may result in the speed of the computer reducing.

This problem is more complicated than one realizes. Since there are are so many brands of CPU processors and motherboards, it is difficult to determine the mean temperature the CPU should be subjected to. To add to the confusion, the sensor and the software that is used also differs from PC to PC. However after several trial and error methods, it has been determined that the average CPU temperature should never exceed 95C and unit runs between 70C to 90C. To check a temperature, one can boot the computer and go to the BIOS set up and check the temperature there.

There are some other indications that show the computer is not working, the way it should. The signs to watch out for are listed below:

Computer crashes too often
Computer works too slowly, when previously it worked faster
It locks itself, without provocation
The sound of the fans in the computer start acting erratic. They may be loud at times and at other times, slow.

The cause in the rise of the CPU temperature is usually due to over use of the computer. The heat builds up and then it results in overheating. The heating may also escalate if the computer use resides in a warm or a hot area where there is not much scope of coolants.  As mentioned previously, every computer has a BIOS where one can check the temperature of both the CPU and the system.

The temperature of every CPU processor is different; for instance, the processor for AMD is usually Idle: 30 to 45 Load: 50 to 70. It is slower and takes more time to heat up as compared to Intel Idle: 40 to 55 Load: 50 to 70.

In case there is overheating, here are some steps that can be taken to bring down the temperature:

One needs to make sure the heat-sink is working properly or not.
Location of the computer in a hot area leads to the rise in the temperature of the CPU
Inducing extenal influences such as heat pipes or phase-changing cooling and water cooler are good steps to bring down the temperature.

Read here for more information on: CPU Temperature Monitor Software

Micro ATX, sometimes referred to as mATX or uATX is a standard for computer motherboards. The micro ATX was introduced in 1997. The biggest size of a micro ATX motherboard is 9.6 inches x 9.6 inches or 244 mm x 244mm. The smallest micro ATX motherboard is 6.75 x 6.75 inches (171.45 x 171.45 mm). The size of a standard ATX motherboard is 12 x 9.6 inches (305 x 244 mm). The central processing units (CPUs) that are supported by micro ATX motherboard are VIA, INTEL and AMD.

Micro ATX motherboard was specifically created to be backward-compatible with ATX. If you are unaware of what ATX is, it is a computer form factor that was created by INTEL. It was a transformation for years in computer case, power supply and motherboard models. AT was the default form factor for computer systems until it was replaced by ATX. The chief reason for the change from AT to ATX was that ATX dealt with many of the problems that were faced with AT by system developers. It effectively suited new market trends and computer advancements. They offer the same advantages of ATX but micro ATX motherboards improved upon certain areas of ATX. Micro ATX motherboards can be used in complete ATX boards particularly since the I/O panel is exactly the same. Both micro ATX and ATX motherboards use the same power connectors and as a result, full sized ATX power supplies can be used with micro ATX. Both kinds of motherboards use the same chipsets therefore allowing them to use much of the same components. Micro ATX are much smaller than ATX types, therefore, they are usually fitted with fewer expansion slots.

In order to successfully use the available expansion slots, and case space, they are widely produced with a full range of peripherals that can form the basis of small form factors and medium center computer systems. As a result of so many integrated components on the motherboard, the demand for having several expansion slots is significantly decreased, and accordingly, the use of micro ATX motherboards increased.

Micro ATX motherboards are suitable for use where less than 4 expansion slots are needed. The current tendency in computer technology is one where consumers are seeking cheaper solutions for their computer systems. Micro ATX also handles this issue, in that, being a much smaller motherboard the expenses associated with the entire system set up is significantly lessened so that the purchaser can gain from more inexpensive computer systems. Previously, stereo sound, LAN connection, USB and other useful elements were bought independently and added to a computer system. Now, with micro ATX, all these features and more are integrated hence lessening the trouble, the time and the expense of purchasing and installing these essential components at a later time.

Micro ATX supports:

Present processor technologies

The switch to more advanced processor technologies.

AGP high performance graphics solutions

Smaller power supply form factor

There are useful tips that you must bear in mind when buying a micro ATX. Some of these tips are provided below.

It is of utmost importance that you find out if the motherboard will do everything that you want to get done or not. The success of most motherboards is determined by how the computer is used and for what purpose.

Before you buy a micro ATX, be ensure that it will work with the parts that you already have.

Similar to any other electronic device, when purchasing a micro ATX ensure you are getting a high quality motherboard. Always try to purchase from suppliers that are prominent and reputable in the sector of computer technology.