Relay Kit

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Relay Kit
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You can start building your own Cisco home lab using many simulators available out there on the internet, but nothing like the real Cisco devices.

Imagine to have Cisco devices in your own LAN, awesome. And also, having a real hand experience on configuring Cisco devices can surely boost your chance passing the Cisco certification exam.

If you have more budget in your hands, then go for it, buy used Cisco routers and switches. You can get them at a really affordable price - compare to the real new Cisco price, you're looking at a price above US$ 1,000 for one device.

From a used Cisco sellers you can get discounts up to 90% or more. Even though they're used devices but Cisco devices are tough, yet you still have to be careful when buying, check the sellers reputation first, and make sure you have warranty at minimum 6 months.

Then which devices should you get, there are many Cisco devices out there. If you need these devices on your own lab for the CCNA exam, the key is to know what topics are tested at the exam.

Lets see, you definitely need routers and switches, you're need at least 2 routers and 2 switches.

Routers

Having 2 routers allows you to simulate routing protocols, and 2 switches let you practice on VLANs, VTP, etc.

The best router for Cisco CCNA home lab I think is the 2611 router, they're cheaper than others, it has slots that let you to add expansion cards if you need to upgrade your router to enable VOIP, WAN, etc.

The 2611 can cost you from not more than US$80 to 200 depends where you buy them.

If you have more money, you can buy the WIC-1T module (US$ 30 - 50) to simulate WAN in your network. The CCNA exam will test you on WAN protocols, in my opinion, to have the WICs are not too essential, but if feel like it, then go for it.

To complete your WAN environment, you can get additional 2523 router at less than US$ 100. This router can act as Frame Relay Switch. So you can pretend to be an ISP in your LAN that connects two different routers located half way around the world, cool.

Switches

Next thing is the switch, you don't need a great Layer 3 switches for the CCNA exam, plus it can cost more than US$ 500 each.

You can buy something like Catalyst Switch 2924 or 2950, they should be enough for the exam. 12, 24, or 48 ports? it's all up to you.

What you need to concern when you buy the switch is that you have to check all the ports on that switch, sometimes few of the ports got damaged.

Cables

Another important things, but often forgotten by used Cisco first buyers are the cables. Make sure the seller provide you with the power cable and console cable for configuring the Cisco devices.

One end of this console cable is RJ45 that you plug into the Cisco devices and at the other end is the serial port for your PC's serial port.

You can make your own console cable, but it is much more convenient to get it from Cisco.

If you will use the WIC cards, then you'd need the DB-60 crossover cables, you plug in this cable at the WIC card back-to-back to another router.

Access Server / Routers

You don't really need access server in you LAN, but it is so convenient that one day you'd need them anyway.

Access servers allow you to connect to all Cisco devices in your network without having to plug and unplug the console cable between routers and switches.

You can buy the 2500 series routers (2509, 2510, 2511, or 2512) for access servers, you also need to get the octal cable.

Octal cable is a cable that has one serial port at one end where you plug it to your router's asynchronous port and at other end is not one but 8 RJ45 console cables.

With only one octal cable you can control up to 8 Cisco devices.

That's it, many people will suggest different devices for your Cisco lab, it's really up to you and your budget. When you're lucky enough you can have a pretty complete Cisco home lab for under US$ 1,000 and I need to tell you that many people out there selling what is called Cisco lab kit. Cisco lab kits are sets of Cisco devices usually for certification purpose, they have from lab kits for CCNA until CCIE, and the important thing is that they sell them with pretty good price.

You can find more about building Cisco home labs from my blog Networking Newbie, thank you for visiting.

Andhika Krishananda, a CCNA who runs a private Cisco home lab willing to share anything about Cisco and eager to learn from other experts. Also runs a blog at http://networking-newbie.blogspot.com that covers about networking, Cisco, and other related topics.

What Using the Hid Xenon Kits Means

People are often looking to make relatively small investments into their vehicles to make it a more enjoyable and safe ride for everybody. One of the ways that they can do that is by purchasing a HDI xenon kit. An HID Xenon kit allows you to install headlights that go far beyond making your car look better. They also make it easier to see at night. The light they produce is more intense and has a bigger range than those of the halogen headlights that most people use today. In fact, in many cases you can see anywhere between 3 and 5 times better.

The HID xenon kits can provide over 300 percent of the light that you are now getting from your halogen bulb. The light produced by the HID kits often simulates the daytime with a clear white light, though there are always blue and purple bulbs available that work just as well. With the <a href="http://www.shophidkits.com/">HID xenon kit</a> installed in your car you can see the reflection of signs and road markings much better than you could with the common halogen headlights.

Instead of the filament and the non reactive gases that you normally see in household use, and the filaments that are surrounded with quartz and halogen gases that you see in the everyday halogen headlights you get a more efficient system with the HID xenon kits.

While halogen uses gases to help your headlights last longer and shine brighter than your household lights, the HID headlights use the gases to produce the lights. The lights in the HID xenon kit use a micro-discharge bulb that is later filled with a mixture of noble gases. These gases of course include xenon. There are absolutely no filaments in these bulbs. Instead, two electrodes create the light arc. This in turn gives a greater range in illumination.

In order to convert a car or a motorcycle you need a several different things. They include ballasts, or amplifiers, igniters, if they aren't built into the ballast already, HID headlights, and the 20 amp fuses for when you start up. If it turns out that your car uses sealed halogen beams then you'll need to get a sealed beam converter. If you'd rather you could try using a wiring harness, an upgraded factory harness, and some relays.

You can use an HID xenon kit for almost every type of vehicle there is. The biggest limitation is that the high/low bulbs do not function. Normally these would be bulbs with two filament ; however with the HID kit converter you can't get both high beams and low beams.

In order to find the HID xenon kit that will work best for your car you need to do some research. Know everything you can about our car and it's current headlights, and it doesn't hurt to take it to a professional. The HIS conversion kits in general are kind of pricey, so you want to be sure you get the best one for your money.

About the Author

Buying the right HID Kits can seem confusing, but it doesn’t have to be! At www.shophidkits.com, we take the confusion out of buying HID conversion kits and help you find the lowest prices on the web!

For HID's, do I need a relay harness for only 3.5 working amps?

My HID kit didn't come with a relay harness. I know that it is good to have one in case the factory wiring cant handle the amperage. but the kit says its 3.5 working amps and I'm pretty sure the wiring is made for about 4 working amps. would it be a good idea to install a relay harness just to be safe? they are digital ballasts too if that makes any difference. thanks

Here is current chart by wire Gauge.
GaugeAmps
22- 5A
20- 8A
18 - 10A
16- 20A
14- 40A
12- 60A
10- 100A
8- 150A

If the amp is 3.5 you should be fine with the wire in your car. I cannot see any automaker using smaller than 22 Gage.

BTW, relays are used to protect switches from high current, not wires.

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