Okay, so you may have an occasion where
you need to test just a single fiber.
This is how you do it with a CertiFiber Pro.
First thing is, we'll take our remote unit
and if you look carefully,
you might notice that when it's powered on
the LEDs are alternating
between the Multimode port
and the Singlemode port.
If we hold down this button here for 3 seconds,
then the Multimode port, the LED there,
starts flashing red and green.
That tells me now that this source
is now active, this one is not,
and this is outputting
850 and 1300 nanometers
alternating between the two.
If I press the button down briefly again,
now I'll flip to the the Singlemode port,
where it's now outputting 1310 and 1550.
If I press again,
it returns it to its normal Smart Remote status.
If you don't hold this button
down for the full 3 seconds,
what happens is, is you turn on the visual fault locator.
So, make sure you hold it down for the full 3 seconds,
and then tap it once to get to Singlemode.
As far as the tester setup is concerned,
at the moment we're in Smart Remote mode here,
which is not correct.
Let's change that.
I'm going to create a new test
and our test type we need to change
to Far End Source.
this is Singlemode so I'm going to change
my fiber type to Singlemode.
And my test limit is,
although it's Multimode, it's TIA-568-C.
The problem with the TIA-568 test
or an ISO test is that
limit is calculated based on the length.
While we'll not be able to measure length
because this is Far End Source mode,
So we'll want to create a custom fixed loss limit
and I've done that in a previous video.
So let's tap test limit,
more, custom,
and here's my TRUNK 01
that I created in a previous video
which has a fixed loss.
We're LC, not that effects the outcome,
and of course we're using one jumper.
Save.
Go and select my new setup,
and we're ready to go.
So, first thing we need to do is set a reference.
And the cool thing is we have this thing called a wizard.
So if I tap run wizard.
It's going to walk me through the whole process
I've already inspected and cleaned
all my test reference cords
and this Smart Remote unit here
has been left on for at least 5 minutes.
You do need to do that,
if you don't you're going to end up with
potentially negative loss readings
and inconsistent readings.
I'll tap next.
Now it's telling me to connect to the input port
So here's my LC.
This is SC so that's what they call a hybrid cord,
and I'm going to set a reference.
I get four options here.
Auto CertiFiber Pro is as it suggests
the CertiFiber Pro unit here,
and the auto is because in that mode it
it can make the measurement at 1310
and then 1550 in one go on a single fiber.
That's quite an interesting feature
within this tester that was not there
in the DTX CableAnalyzer.
In the DTX CableAnalyzer you could do this,
but you had to do one wavelengths at a time.
This one will cover both wavelengths.
We also have another project
called the SimpliFiber Pro.
And you can use that source
if you didn't have this one here,
but that's unlikely, but it's something
we put in the tester just in case.
And if you don't want to use any of our sources
you can use any generic source
and then calibrate it or, sorry,
set a reference at 1310 or set it to 1550.
But if it's not our source,
this one or the SimpliFiber Pro,
you're not going to be able to measure at both wavelengths.
Okay, so it's just set a reference.
I'll tap next and it's telling me
to disconnect from the input port.
Never ever disconnect from the output port.
That's bad news.
I'm going to put this in here for safekeeping.
Next.
It's telling me to grab my other test cord,
which is a an LC to LC,
and you'll notice that with the Fluke cords
they're red and they're black.
The rule is that if it's red it's hot,
if it's black it's cold.
So the red here is going to the output port
because that's the hot port.
So on here, when we look at the screen here,
we see that black is actually going to the input port,
because the input port is cold.
Next.
And it's telling me to join the two together.
What we're going to do here
is to actually going to verify how good
these cords are before we make any measurements
Now, this is not the most
desirable situation here because
typically I like to spread out
and not have any coils or kinks
in my Singlemode cable.
Then we'll tap TRC verification.
What are we doing here?
Before we actually disconnect this and plug
into the link we're verifying the performance
of this LC connection here,
and this LC connection here.
Ideally, for Singlemode we're looking
for 0.25, as you see on the screen here.
This is great news I got 0.16 dB.
These are reference-grade
connectors on here.
If you don't purchase reference-grade connectors,
you just go for ordinary patch cords,
you may not hit that 0.25 dB.
It's going to be a bit of a gamble.
So it's always good to go for the
reference-grade connectors. Remember:
the better your connectors are here,
the better they're going to be when you test the link.
The other thing to notice on here is
above the loss here we see
the TRC20140817.
This is a cable ID.
In other words,
the moment we just did this,
and verified this test reference court,
it's already saved it internally
within the memory.
So the cool thing about that
is when you submit the test results,
why not submit it along with
how good your test reference cords are?
And then if there's any questions over
how good the TRCs are
you've actually got documented proof
that they're okay.
So, with that said
we can go forward. Hit next.
It's telling me to disconnect them
and connect them into the link that I want to test.
So I'm going to do that now.
Over to my red,
and
into the other side of my link,
home,
and now if I test.
Bingo. 0.33 dB.
That is the loss of this connection here,
this one here,
the loss of this connection here,
and this loop of fiber.
And if you really want to get picky about it,
it's also the loss of this
other TRC that you added in here.
This two meter represents
a couple hundredths of a dB.
It's totally insignificant.
This is the correct way.
Always do a one jumper reference
when testing a permanent link
patch panel to patch panel.
And as always, we can save our test result
to be downloaded to an instrument later.
And that is how you do
a foreign source measurement,
a single fiber test,
LC to LC,
one jumper reference.