sundance-communications.com/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring Splicing Cat5e

And here's one for the UR2 splice which says the same thing:

https://multimedia.3m.com/mws/mediawebserver?66666UuZjcFSLXTtlxT2NxM_EVuQEcuZgVs6EVs6E666666--

Here's a cut and paste:

8.0 Frequency Performance
Connector performance was evaluated per ANSI/EIA/TIA standard 568 A, Oct. 1995, section 10.4.4, Category
5, which applies to connecting hardware for 100 ohm UTP cable whose transmission characteristics are
specified up to 100MHz. That document details the attenuation, NEXT, and return loss test procedures and
requirements for testing of connector performance.
For the following three tests, four pairs of UR2 connectors were fixtured in close proximity, top to bottom, to
simulate a four-pair connector or to approximate a closely bundled group of individual connectors.
8.01 Attenuation
Attenuation is a measure of signal power loss due to the connecting hardware and is derived from swept
frequency voltage measurements on short lengths of 100 ohm twisted pair test leads before and after inserting
the connectors on test.
For attenuation measurement, connector samples were prepared using small lengths of Category 5 wire
terminated with contact pins on both sides of the connector pair on test. The insertion loss due to the
connectors was measured by inserting the connectors on test between two baluns in a set-up for insertion
loss/attenuation measurement. The set-up was calibrated using full two port calibration prior to connecting the
connectors on test.
Equipment:
• H.P. Network Analyzer Model 8753D/E with
• North Hills balun Model 0322BF for 1MHZ to 100MHz
(Category 5 freq. band measurement) and
• North Hills balun Model 0320BF for 30KHz-30MHz (for xDSL freq. band measurement)
Results:
The results below show that the measured connector complies with Category 5 requirements.
Frequency Category 5
(MHz) Attenuation
(dB)
1.0 ≤ - 0.1
4.0 ≤ - 0.1
8.0 ≤ - 0.1
10.0 ≤ - 0.1
16.0 ≤ - 0.2
20.0 ≤ - 0.2
25.0 ≤ - 0.2
31.25 ≤ - 0.2
62.5 ≤ - 0.3
100.0 ≤ - 0.4

8.02 NEXT
NEXT (near end crosstalk) loss is a measure of signal coupling from one circuit to another and is derived from
swept frequency voltage measurements on short lengths of 100 ohm twisted pair test leads terminated to the
connector under test. A balanced input signal is applied to a disturbing pair of the connector while the induced
signal on the disturbed pair is measured at the near-end of the test leads.
For NEXT measurement, connector samples were prepared using small lengths of Category 5 wire. One side
(near end) of the first of the four pairs of connectors was terminated with contact pins and the other side was
terminated using 100 ohm SMT resistors. NEXT measurements were made from the contact pin side between
pairs 1-2, pairs 1-3, pairs 1-4, pairs 2-3, pairs 2-4, & pairs 3-4. The set-up was calibrated using full two port
calibration prior to connecting the connectors on test.
Equipment:
• H.P. Network Analyzer Model 8753D/E with
• North Hills balun Model 0322BF for 1MHZ to 100MHz
(Category 5 freq. band measurement) and
• North Hills balun Model 0320BF for 30KHz-30MHz (for xDSL freq. band measurement)
Results:
The results below show that the measured connector complies with Category 5 requirements.

8.03 Return Loss
Connector return loss is a measure of the degree of impedance matching between cable and connector and is
derived from swept frequency voltage measurements on short lengths of 100 ohm twisted pair test leads before
and after inserting the connector under test. A balanced input signal is applied to a connector while signals that are
reflected back due to impedance discontinuities are measured at the same port from which the signal is applied.
For return loss measurement, connector samples were prepared using small lengths of Category 5 wire. One
side of the connector pair on test was terminated with contact pins and the other side was terminated using a
100 ohm SMT resistor. Return loss measurements were performed by connecting each pair of contact pins to
the balun. The set-up was calibrated using full two port calibration prior to connection of the connectors on test.
Equipment:
• H.P. Network Analyzer Model 8753D/E with
• North Hills balun Model 0322BF for 1MHZ to 100MHz
(Category 5 freq. band measurement) and
• North Hills balun Model 0320BF for 30KHz-30MHz (for xDSL freq. band measurement)
Frequency Category 5
(MHz) Return Loss
(dB)
1.0 ≥ 23
4.0 ≥ 23
8.0 ≥ 23
10.0 ≥ 23
16.0 ≥ 23
20.0 ≥ 23
25.0 ≥ 14
31.25 ≥ 14
62.5 ≥ 14
100.0 ≥ 14
Results:
The results below show that the measured connector complies with Category 5 requirements.

Yeah, I'll still use the splice box, which I bought for the first time after reading this thread (Thanks Arthur!).

Quicker, cheaper and easier.

https://www.telephoneparts.com/index.cgi?pcode=60001SPLICE

Not when you have to order it. Scotchloks are available locally for me. I can get 50 of them for what that part plus shipping costs.

If you use those little splice boxes, as I did, READ THE DIAGRAM of how the wires get terminated. The punchdowns ARE NOT SYMETRICAL.

Arghhh.

Just a little more weirdness to mess with an old phone man's mind.

Well, I'd figure in repair costs too .
When the customer realizes that those tests were Cat5, not Cat5e compliant. Just hope they don't want to run gigabit on it. (I understand it would work in the real world, for most networking applications, but I'd rather do it once and do it correctly)

----

Are you suggesting that we "Read The * Manual?"
:gasp:


I know exactly what you mean though Arthur, I had to double check the first one I did too... after that it was in my "working memory", so the next few were simple. Still a very useful product, thanks again!

Well...what's your proof that these splice boxes are actually Cat5e compliant? The fact that they say so on the cover?

Something to think about..

(Incidentally I'm running gigabit on Commscope 0478 Cat5 cable. I think I'd have some reservations about running it on "Space Shuttle" or "Wonderful" Cat5 cable, though...)

had a call yesterday for two cut 5E cables , when I got there sparky had already scotchlocked them , GC was saying sparky had to make a special trip out to get the scotchlocks

one workstations was working sloooowly one was dead

I punched down cat5e jacks on each end of the cut cable and used a patch cord to get everything back up

the cable is being replaced on Monday anyway as the workstations are moving and the cut was part of the remodel
:rolleyes:

how do we know anything we use is actually cat5e compliant

just because it says so ?

I have no proof, therefore it must be a conspiracy theory.

"Something to think about"... Is it? Really?

:rolleyes:

Well I have test reports showing how Scotchloks perform, all you have is a cover that says Cat5E on it probably made in the same factory where they counterfeit UL labels.

The same way you know that the cable you're installing in a drop-ceiling return air space is actually plenum-rated.

I've used UY and UR splices for Cat5E cable on 100BaseT connections. No problems. I have not tried it with 1000BaseT but you know, that would be an interesting test. I predict it works fine.