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Cartridge Wires
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Anyone dealing with RS232, RS422 or RS485 serial data communication, USB, Ethernet or TTL will occasionally have to convert and/or between them, extend reach, or add isolation. That's just in the nature of the game, and that's what serial converters, adapters and repeaters are for. Let's take a look at the various types that are available.
Serial RS232 to RS485 converters convert signals between any standard full duplex RS-232C port to any two-wire balanced half duplex RS-485 port. These converters are port-powered and do not need external power. They are usually plug-and-play (meaning you don't need to set or configure anything), and they have built-in surge protection, static protection and surge protection. These converters are available in 9-pin and 25-pin format and are usually also available in industrial grade versions that can handle higher temperatures, more abuse, and they can be used with terminal blocks instead of just DB-9 or DB-25. There are also opto-isolated converters that use optical isolation circuitry to protect from transient surges, ground loop and remote lightning. There are also special powered opto-isolated units that can go from RS232 to RS422 or RS485
Serial RS232 to RS422 converters convert signals between a standard full duplex RS232C port and any four-wire balanced full duplex RS422 port. These converters are also port-powered and there is no need for an external power adapter. They, too, are usually plug-and-play so you don't have to set or configure anything. Most good ones have built-in surge and static protection. These converters are available for use with either 9-pin or 25-pin connectors and are usually also available in industrial grade versions that can handle higher temperatures, more abuse, and they can be used with terminal blocks instead of just DB-9 or DB-25.
Serial RS232 or RS485 to TTL converters communicate between a standard full duplex RS232C port or a RS485 port and also 3.3 or 5 Volt TTL devices. TTL stands for Transistor -Transistor Logic and is a standard defined back in the early 1960s, but still used today. These converters, again, are port-powered and do not need additional external power. They are usually plug-and-play so you can start using them right away without any configuration, and they are generally protected against surges and static discharge.
Opto-Isolated converters and surge suppressors include isolators that simply provide optical isolation to guard against transient surges, ground loop and remote lightning. These isolators are available in different configurations ranging from models with just three wires or seven or more wires for connections that require it. Opto-isolated converters are more expensive, but the extra investment buys peace of mind at a small extra investment.
Serial data repeaters can greatly enhance the maximum distance of RS232 lines, therefore acting as RS232 extenders. Repeaters can also come in the form of combined converters and repeaters. These can be a very inexpensive way of solving distance problems.
For mixed serial/USB environments, there are various types of adapters that convert from USB to RS232, RS422, RS485 or various voltage TTL. These adapters are usually all port-powered and do not need external AC adapters. If needed, they are also available with industrial terminal blocks.
Fiber optic media converters convert from RS32, RS422, RS485 or Ethernet to fiber optic media. They are available for single mode or multi mode fiber and they are usually available with ST (Straight Tip) or SC (Subscriber Connector) connectors. Fiber optic can greatly extend the reach of serial connections, up to over 12 miles with single fiber links.
Bottom line: Pretty much everything connects with everything else in the RS232/RS422/RS485/USB world of serial communication. Converters are inexpensive (usually US$30-60, except for optic media converters, which cost more).
Chris Robertson is an author of Majon International, one of the worlds MOST popular internet marketing companies on the web.
Learn more about RS422 Converters.
Hp Color Laserjet Cp2025N & Cp1215 Printer
With very high print speeds and exceptional print output along with the high degree of duty cycle, the HP Color LaserJet CP2025n printer is a good investment. While the pricing maybe a little prohibitive, the multiple computer connectivity and high quality of prints makes up for the high-end pricing.
Overview
The HP Color LaserJet CP2025n printer is designed exclusively for small workgroups and small businesses. Priced at around 450 USD, you can connect this HP LaserJet printer to a multitude of computers over any wired network. However, there are a couple of drawbacks with this printer namely, slow output speeds when it comes to presentations and text documents. The plus point is that there is a robust toolbox replete with plenty of settings, instructions and features to make your user experience better.
Design elements
In terms of design, the HP Color LaserJet CP2025n printer is trendy and chic. Most of the color is comprised of gray tones and the dimensions of this printer are 12.7 inches in height, 15.9 inches in width and 25.9 inches in depth. All drawers are neatly tucked inside. The printer is heavy, weighing at around 50 pounds. The output speeds are very fast for color text prints as well as graphics at 8.31 ppm and 13.56 ppm respectively. However, when it comes to black text pages, the speeds are much slower.
HP LaserJet CP1215 printer
The HP LaserJet CP1215 printer is easy to install and prints out very high quality when it comes to colored documents. Manual duplexing is supported and it is compact in design, thus occupying less space. The price of this HP LaserJet printer is quite expensive at around 299 USD and it is slow in printing color graphics. There is also no LCD display and the resolution is fixed. Yet, all is not gloomy when it comes to the HP LaserJet CP1215 printer as this offers all the functionality needed from a basic printer needed in small businesses.
Design features
The HP LaserJet CP1215 printer is not very impressive in the looks department as most of the color schemes are comprised of gray white undertones. The control panel is basic with resume, ready, cancel, attention, paper jam buttons and several other indicators within. This HP LaserJet printer is not as bulky or large as the HP LaserJet CP2025n printer as it measures 15.7x10x20 inches in dimensions. Driver installation and setting up connection is easy with this printer. The performance is not very good in this HP LaserJet printer, especially when compared to other printers in its league. With slow print speeds of 5.36 ppm for color, it is extremely slow compared to the pricier HP LaserJet CP2025n printer.
Cartridges used
Both the HP LaserJet CP2025n and the HP LaserJet CP1215 printers use different sets of cartridges as required. The HP LaserJet CP2025n printer and the 1215 versions come with standard HP CC530, CC531, CC532, CC533 and HP CB540A, HP CB541A, HP CB542A, HP CB543A printer cartridges.
About the Author
John C Arkin from PrintCountry.com the contributor of Printer Ink Cartridges Blogs. More information on the subject is at HP Color Laserjet CP2025n & CP1215 Printer, and related resources can be found at HP LaserJet Printer Cartridges.
i need soldering tips.?
i need help about circuit boards? learning to re locate a connector ( like on a nintendo gba, moving the cartridge slot, is there certain types of wires i cant use? and i posted picture to see your opinion if the soldering is bad. its a drawing. and can you cut down a circuit board if some parts arent labeled or looks like it isnt in use? and soldering types? please be specific on what you do soldering.
http:// www.flick r.com /photos/38562948@N02/4396514403/
its just example. why?
First of all, here's a clickable link:
http://www.flickr.com/photos/38562948@N02/4396514403/
It seems as if you are connecting six circuit board terminals to each other.
Any reason for this?
Latest News
In a world without wires, Epson today unveiled a $99 all-in-one printer that gives you wireless 802.11n built-in. When I’m on my laptop I don’t want the hassle of plugging and unplugging every time I need to access the printer, not to mention having to actually move your setup next to it.
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