C2G 3ft Cat5E Crossover Patch Cable Black 24493 Leaflet

Product codes
24493
Page of 2
Category Cabling:
A Brief Summary
Category Cabling:
A Brief Summary
The basic difference between CAT5 and CAT5e cabling are the tests the cable was verified under.  CAT5 and
lower category cabling only tested 4 main performance characteristic Ð frequency, attenuation, impedance &
near end cross talk (NEXT).  The frequency by which a signal can reliably transmit through a cable was the pri-
mary sorting characteristic.  For example CAT3 is rated at 16Mhz, CAT4 is rated at 20Mhz, CAT5/5e are BOTH
rated at 100Mhz and the proposed CAT6 standard is rated at 250Mhz.  The ANSI EIA/TIA standards organiza-
tions identified a need for cabling to be able to more reliably transmit signals over copper cabling.  With this
need in mind, they ÔtweakedÕ the CAT5 standard coming up with an enhanced version.  The only change to the
CAT5 standard was the addition of five new tests.  Theses tests were designed to measure performance charac-
teristics necessary in higher speed applications such as 100Mb, 1Gb and 10Gb Ethernet.
Category 5
Category 5e
Category 6
(Draft 9)
Frequency
100 MHz
100 MHz
250 MHz
Attenuation (Min. at 100 MHz)
22 dB
22 dB
19.8 dB
Characteristic Impedance
100 ohms ± 15%
100 ohms ± 15%
100 ohms ± 15%
NEXT (Min. at 100 MHz)
32 dB
35.3 dB
44.3 dB
PS-NEXT (Min. at 100 MHz)
n/s
32.3 dB
42.3 dB
ELFEXT (Min. at 100 MHz)
n/s
23.8 dB
27.8 dB
PS-ELFEXT (Min. at 100 MHz)
n/s
20.8 dB
24.8 dB
Return Loss (Min. at 100 MHz)
n/s
20.1 dB
20.1 dB
Delay Skew (Max. per 100m)
n/s
45 ns
45 ns
Performance Characteristic Comparison*
by Cables To Go
* Source: http://www.ul.com/lancable/verification.html
n/s - not specified
Molded vs. Assembled vs. Booted Ð WhatÕs the Difference?
Cables to Go offers two popular termination types for our premium CAT5e
patch cables: Assembled and Molded
Assembled patch cables have the cable wire stripped back one quarter of an
inch, with the connectors crimped onto the wire. While the least intrusive from
a size perspective, assembled patch cables do not provide the same strain relief
as molded.
Molded patch cables have an overmold where the cable wire enters into the
connector and the connector is crimped onto the wire. This overmold provides
additional strain relief so that the wires will not separate from the connector
when under stress. This also helps ensure the cable maintains its twists, which is
essential to good communication.  Cables To Go also incorporates a boot into the
mold so that the cables wonÕt snap when being installed.
Booted patch cables are typically made with an assembled or crimped on
connector with a plastic or rubber boot that slides over and surrounds the RJ-45
connector. Cables to GoÕs Molded cable uses the overmold to accomplish the
function in a more durable design. We find that the boots can create some
difficulty when unplugging, as they reduce the positive feel on the latch clip
and are not as durable as a molded termination. Cables To Go doesnÕt sell
booted CAT5e cables. Instead, we offer a molded solution which provides the
same functionality.