How to test and check Home Ethernet Network continuity using a RJ45/RJ11 Cable Tester


hello Shaun here today
today I’ll be running through with you how to do self-diagnostics of your home ethernet
points namely those who find like on the walls right using one of this little
babies here so this is actually a general cable tester stated here it does diagnostics check using the RJ11 as well as the RJ45 standard
so RJ11 is the format for your typical phone jacks I mean, for phone jacks is just the other
term of it and for ethernet points or ethernet cables with 8 pins is the RJ45 standard so this allows you to test the continuity of the 8 pins on the RJ45
as well as the 6 pins on your RJ11 so as seen here
so that’s two parts to this remote there is the main unit as well as a remote unit as says on
the tin here it’s actually removable so what you have right is actually a standalone
unit powered by a battery so this runs off a 9 volt battery and there are two ports up here alright
the smaller one with the six pins is the RJ11 phone line jack and the
one down here is the eight pin RJ45 and you find the corresponding same pins as
well on the remote the smaller one phone jack as well as the ethernet point so for this video I’ll be using these as a demonstration on my ethernet points
and the procedures to test your phone jack is largely similar all right let’s get to it then so what is in the box then?
okay so we have two units and it comes in this little pouch here so this whole
thing I got it off eBay costed just under about eight US dollars or about like ten to eleven Singapore dollars
so what you get is pretty basic just the unit in here, no cables
these are my cables and you just get… well, pretty much it
yes just a universal instruction sheet here network cable tester so this unit right conforms to the
T-568 standards which is the standard which everybody
uses especially when you are talking about networking in the home so I believe this actually gives you
a bit of the technicalities of how it goes about testing it
so yeah as elaborated there is eight pins on the RJ45 as well as these six pins over here
and of course yes it says it conforms to the two standards of the T568 standards
here and nothing really much about it there is additional testing for RJ12
but it is not gonna be covered as I do not have RJ12 cables to begin with
so let’s get tested okay so right to begin with I shall plug in one of the Ethernet points up here on to the big port
so this is a eight pin Ethernet jack which you can typically find at
the back of your desktop computer or your laptop computer if you have one
you may need a dongle if your laptop is you know, is an Apple product I guess?
right so and then the other end goes up here okay alright let’s get it down
so what you have is the devices connected via the cable
so there is no battery in this unit so anything which lights up here means that the power has to come through this cable
while this unit has a battery in it and turning on, it actually runs through a continuity check
so it does here right is that it sends a signal through each of the pins
Alright so I have another pin-out another jack there is one to eight
pins alright you can see right there and these are straight cables
so if it’s a straight cable you’ll get a corresponding similarity of “one” being
tagged on to “one” here so as you can see it runs through everything so “one” corresponds to “one” here
and it means that you know, there is actually a signal
running through from here to there so when all of them lights up
you can tell that this is a good cable good cable meaning in a sense that all the pins are connected and there is continuity in there so that is what it checks
you notice that “G” doesn’t lights up “G” is actually a ground a ground signal and that only applies to
cables which are shielded, you know with ground shields and usually that’s not
really needed for a home Ethernet networking you know it is more for areas where you
have large interference, you know, outdoors and so within the purview of
home networking at least, right so “one” to “eight” is really what you need to do
so there’s actually two modes so “ON” quickly cycles through all the eight pins
if you have a phone jack in place you will get signals running through all of
them but you only need to check the six corresponding on both sides
so if you run a phone jack through here you will get the main unit running through “one” to “eight” but
you wouldn’t get a feedback from “six” to “eight” onwards so it is that simple
so you will need to just check six for RJ11 and “one” to “eight” for RJ45
okay this is actually a status LED and it just shows you know that it is doing stuff
and this is actually what you need to take note off so the S mode here right you know it’s actually what I think is called the slow mode
so if you switch it over it holds the LEDs a bit longer
so you can actually check so you don’t miss out on any of the continuities
so likewise… right four five six seven eight and it goes back up again
to one yep so that’s about it before I go about running about checking continuity it is good to have at least two sets of cables so I have checked this yellow cable and next we shall check this spare cable I have here which is this black one here
similarly you just run it through there so the reason why you want to check this too
is to make sure that you don’t have any inherit system issues you’re gonna make sure that these
two cables are good before you go around checking the ports in your
house and whether they are working or not right so let’s run this again so alright there is all eight of them in there and I shall leave this blank cable on the remote side
and the main unit using the first cable which we tested first the jacks on the wall
they are female ports so there’s no way for you to connect this directly to that
without using a cable hence you got to make sure these two cables are okay before you actually go about testing because, if there is anything wrong with
the continuity or the patchwork behind the walls that’s how you can tell
whether the cables are faulty using proper cables here
so lets go about doing that so if you are staying an apartment you will normally find a panel by your main door
alright and it’s usually something like that so everything sits here you have your fuse box and a network box up there
so what you have in here it’s essentially what you have
you know like your fiber termination points your phone jacks
as well as your Ethernet ports and your TV aerial lines
so things of interest of course be your data port panel
so this apartment I am in is a three bedroom apartment so the labeling as such living room alright lets get some focus here and then that’s the first bedroom, second bedroom and the master bedroom each of these panels are eight pins RJ45 and then there is one here
for the phone jack so in this format the living room port runs out
straight to the wall over there and there is another jack here
which is a phone jack distinguished by this phone icon here, which connects to
the phone line up here alright so with this in hand, I shall test the connection
for this port here to the living room port right lets do this in one hand
alright right so that’s connected from the
living room port to the RJ45 port on the tester unit and I shall leave it on so as you can see, it cycles through all right, so it is sending the signal through all right so lets leave it ON here and let’s go on to the other port
and put this other end into the other wall port here so the pins are here and
it just goes on this way and tada as you can see 1 2 3 4 5 6 7 8 right and usually this is all what you need to do
you just need to check whether all eight is lit here because the unit back there at the box
where we are sending the signal from has the battery power and this one doesn’t have
any battery so anything you see here it’s exactly what you see back there
but just to confirm I just leave this here and we head on to the other box then you can see similarly
all “one” to “eight” LEDs are being lit here and there you have it
the connection from the living-room port here to the wall port where the other one is
connected is okay alright do take note though that this tester doesn’t
actually distinguishes between the categories of your cables so if this is a CAT5 cable
and if you are to use a CAT 6 cable they’re all 8 pin cables the only difference between the cables is the shielding and how resilient they are to electromagnetic interference with the exception of considering twisted pairs
you know, and stuff like that so it is just a thicker cable
a better cable, better quality cable and less interference which allows you to
achieve Gigabit speeds using the same number of pins so actually this is all what you need
most new apartments like this one here comes with CAT6 cabling as standard
so they are actually pretty good cables running through the conduit to
each of your bedrooms so you don’t need to worry about that
yeah so the main thing is just to check that whether your internal wirings
as well as the termination on your patch point here is done properly usually 99% of connection issues with regards to Ethernet points, in-built ones, are normally limited to
improper connections on the patch panel side so usually you are good.
the chances of you having to rerun and re-pull your cables is very low
most of the problems usually reside here and this is, and this is a nice handy tool
to allow you to quickly just do that so the procedure is the same for the other bedrooms I can just do the same again and illustrate to you
I put in here and I will just go to here and bring this to the first bedroom so the procedures are the same as well all right so this is the port in one of the bedrooms here note that this is an Ethernet jack here
and daum and there you have it eight LEDs right one two three four five six seven eight are all similarly being lit here so we can tell that this room now
has a direct proper connection through eight pins to the main box in the living room alright to sum up how the networking is
typically done here okay so I’ve run through how you can check that the
continuity and the connection between each of the bedrooms are proper and
terminated properly to your bedrooms how would you actually set up your networking equipment here then all right so we have a power jack here alright and this is
where you typically put your optical network terminal, or “ONT” for short as well as your router so usually it all resides here so that box up there is actually your fiber termination point and that comes up
out through a fiber cable into your optical network terminal (ONT) and that has four outputs
or rather, I would say two different kinds of outputs that is, if you have a voice line subscription you will have a RJ11 port which is a phone jack and that goes on using a
cable into your phone jack and that brings phone lines direct to all the rooms
which you have phone line ports to and then there is a RJ45 a.k.a your Ethernet port which goes into your
router, into the WAN point of your router and that actually, through DHCP, you know whatever static address assignment connects from your router using an RJ45
cable to each of your individual rooms so you can see is: fiber point, ONT, router
connected to ONT and the 4 ports of your router each the each port goes into each of these ports here
each of them representing a spot in your room so usually that is I will be setting up so there’ll be one port on the router going into the living room port, the
master bedroom and the two bedrooms and you have the ability to connect to the same LAN subnet through every single room in the house if you are looking to add more ports you can choose to have a
switch terminated at the endpoint, the bedrooms says if you have like, more
networking devices, a server or like a home port, or you know like a TV box
which you may wish to connect to then it will be recommended given the restricted number of ports here
to actually split the ports on the endpoint, in the rooms with a switch
so that you can actually expand the number of ports in your room on the same LAN
subnet with your router over here so that is how that’s usually how it goes then so everything will sit here, the ONT and the router and then if you’re looking to
expand your network you can choose to connect your mesh routers, your APs,
your repeaters in each of their respective bedrooms from the ports in the bedrooms and not here because you won’t really get good Wi-Fi signal putting on your network equipment in this corner of the house which is usually by the front door
behind a cabinet that being, this is a wooden cabinet so you don’t really get
significant attenuation you know on the Wi-Fi signal but this is not really one
of the best spots you know to put network equipment given the interference
you have from a high voltage fuse box here as well as the number of metal
parts all around here you know that just makes Wi-Fi a little bit more painful to
get especially on the far ends of the room especially, or in the master bedroom
for this 3 bedroom apartment that has come to concern so yep, I hope you enjoyed this video
it’s a quick 101 networking session I might work on an additional
video with the exact details of the setting up the networking infra
if time allows but yeah this is pretty much mostly a video on how to actually test your
network using one of these babies here so yeah if you find the video useful
just feel free to give it a thumbs up subscribe if may and hope to see you again
soon then all right bye

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