Time
2 hours 16 minutes
Difficulty
Beginner
CEU/CPE
3

Video Description

Coaxial cables are usually used for cable modem networks and networking in wide areas.

Video Transcription

00:04
moving away from our fiber connectors in our high speed light connectors. Moving back to some of our standard metal connectors, which transmit with electrical signals, are going to be our co axel. Cables now are co axial. Cable cables are more going to be seen on some of our older networks. They aren't
00:23
quite as common as seeing our
00:25
fiber used in a backbone and R J 45 Ethernet connectors in the office environment, but they still are out there, and so we need to understand what they are. We have our hander copper wire, which transmits our data with a inner insulation, which is our boil shield
00:44
thin layer of foil
00:45
surrounding our copper wire. And then around our foil shield. We actually have a braided shield, which is braided metal. Now this does not count is shielded twisted pair. Because this center wire here is not a twisted wire, it's just a single copper wire. So even though this has its shield on there, it's not considered
01:06
STP. You wouldn't call this an STP cable because not shielded twisted pair. And then, of course, on our outside, we finally have our outer plastic coating. One thing also to know about the braided shield layer is it also acts as our ground. So our single copper wire,
01:23
you know, in the centre transmits our data. And then this outer
01:26
shielded pair also transmits our ground. We have an example of it here,
01:32
and the connectors that we have on the end of this co axial cable are called BNC connectors. Being C connectors are especially noted for their twist and lock connectors. When we're putting these together, they're actually have a small notch, which go into the connector
01:51
and twist and just simply lock.
01:53
So we have part B in C connectors, which are twists and lock, and our only data connector is still that single copper cable. But we'll notice that when we're plugging them together we have our one connector with the notch on the end,
02:12
and then our partner connector
02:14
is a larger connector that has a place for the notch, which then blocks in there. So again, we simply place them together and
02:24
twist, unlock and then click and twists toe, lock them together. And that's our BNC connector. Arco Axel cables also have f connectors, which are our screw on connectors. You may see these still with certain connectors, like if you're using cable box or a satellite television box where
02:44
you simply we have one end that has
02:46
our screw ridges and then the other end rather than just twisting and locking like our BNC connectors, the actual entire end screws on. These can be a pain sometimes, especially if these threads here get misaligned and you're trying to screwed in and you're having problems. Some of them are easier than others. If the connector is,
03:07
uh,
03:07
if the connectors a better connector where we can just turn the end to screw it on rather than having to turn the entire cable saves us some heartache. But that's our difference between our F connectors and our BNC connectors are F connectors are screw on connectors that will see like on our television that we could see on our televisions are satellite boxes, and we have our BNC connectors, which are
03:27
twists and locks
03:28
which were just simply twisted locked connectors. But both of these air still considered co axel cables with our center data cable
03:36
are shielded foil layer our ground shield and then our outer rubber coating on the outside so thank you for joining us here at cyberia dot i t for this module. We can. We covered some basic information as far as identifying different types of network connectors and cables.
03:53
Hopefully you'll be able to join us for some of our
03:57
later videos on the exact specifications of these cables and some more detailed information. But again, my name is Anthony. Thank you for joining us, and we'll see you next time here on cyber dot i t.

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Instructed By

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Anthony Harris
Systems Analyst and Administrator at SAIC
Instructor