Protect CAT5e lines from noise.

Protect CAT5e lines from noise.
Free 24-hour Tech support: 724-746-5500
© 2010. All rights reserved. Black Box Corporation.
CAT5e Shielded Twisted-Pair (STP) Patch Cables
Protect CAT5e lines
from noise.
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» The cost-effective alternative to fiber optic
cabling in high-noise environments.
» Foil shielding protects signals from EMI/RFI.
» Reliable performance in extreme climate
» Snagless boots.
» Choose from stranded or solid conductors.
» PVC and plenum-safe jacketing available.
If you have a high-noise environment and running fiber optic
cable is not cost-effective, the CAT5e Shielded Twisted-Pair (STP)
Patch Cables are your practical alternative for runs up to 150 feet
and beyond.
What is noise? It is the common term for electromagnetic
interference (EMI) or radio-frequency interference (RFI). It’s generated
by motors, fluorescent lights, air conditioners, and office appliances.
EMI and RFI play havoc with ordinary, unshielded copper cables.
But the BLACK BOX® CAT5e STP Patch Cables are built for harsh
environments. In fact, they perform reliably in temperatures
as hot as 176°F (80°C) or as cold as -4°F (-20°C).
These cables are built with protective foil shielding and
support 100-MHz or 155-Mbps high-speed communications.
The patch cables are terminated with the T568B wiring pattern
and have slide-back, snagless, molded gray boots. They are ideal
for applications with TIA/EIA 568-A Category 5e and ISO/IEC 11801
Choose from two versions, either with stranded conductors
and a PVC jacket (EVNSL72GY) or with solid conductors and a jacket
safe for plenum installation (EVNSL73GY).
The EVNSL72GY cables are available in lengths from 3 feet
(0.9 m) to 20 feet (6 m), and custom lengths are also available.
The EVNSL73GY cables are available in lengths from 25 feet (7.6 m)
|to 150 feet (45.7 m).
Technically Speaking
Shielded vs. unshielded cable.
The environment determines whether cable should be
shielded or unshielded. Quiet office environments, busy retail
establishments, and industrial workshops all require different
levels of shielding.
Shielding is the sheath surrounding and protecting the wires
of the cable from electromagnetic leakage and inter­­ference (EMI).
This activity is commonly referred to as noise. Sources of EMI in
the workplace include elevator motors, fluorescent lights,
generators, air conditioners, and photocopiers.
To protect your data from high EMI, choose a shielded cable.
Foil is the most basic cable shield, but a copper-braid shield
provides more protection.
Use a foil-shielded cable in busy office or retail environments.
For industrial environments, you might want to choose
a copper-braid shield. For quiet office environments, choose
unshielded cable.
Stranded vs. solid conductor.
Stranded cable is for use in shorter runs between network
interface cards (NICs) and wallplates, or between concen-trators
and patch panels, hubs, and other rackmounted equipment.
Stranded-conductor cable is much more flexible than solid-core
cable. However, attenuation is higher in stranded-conductor cable,
so the total length of stranded cable in your system should be
kept to a minimum to reduce signal degradation.
Solid cable is for use in runs between two wiring closets
or from the wiring closet to a wallplate. Solid-conductor cable
shouldn’t be bent, flexed, or twisted repeatedly. It’s designed for
both backbone and horizontal cable runs. Its attenuation is lower
than that of stranded-conductor cable.
For more information on how to choose the right cable for
your application, call our FREE Tech Support at 724-746-5500,
24 hours a day!
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Tech SPecs
Conductor Gauge —
EVNSL72GY: 26 AWG, 7/34 stranded tinned copper;
EVNSL73GY: 24 AWG, 7/32 solid tinned copper
Construction — EVNSL72GY: Gray PVC jacket, ripcord, foam
polypropylene insulation, aluminum/polyester shield with drain wire;
EVNSL73GY: Gray plenum polymer alloy jacket, ripcord, FEP insulation,
aluminum/polyester shield with drain wire
Delay Skew (Maximum) — <25 nsec/ 100 m
ELFEXT (Minimum/100 m) — EVNSL72GY: 66 dB @ 100 MHz;
EVNSL73GY: 63 dB @ 100 MHz
Frequency — Up to 100 MHz
Impedance — 100 ± 15 ohms
NEXT (Minimum/100 m) — EVNSL72GY: 64 dB @ 100 MHz;
EVNSL73GY: 67 dB @ 100 MHz
PS-ELFEXT (Minimum/100 m) — 63 dB @ 100 MHz
PS-NEXT (Minimum/100 m) — 64 dB @ 100 MHz
Return Loss (Minimum) — 18.9 dB @ 100 MHz
Velocity of Propagation (Nominal) — EVNSL72GY: 71%;
EVNSL73GY: 72%
Wiring Type — TIA/EIA-T568B
Connectors — RJ-45
CAT5e Shielded Twisted-Pair (STP) Patch Cables with Snagless Boots,
T568B, 4-Pair, RJ-45
PVC, Stranded
3-ft. (0.9-m)
6-ft. (1.8-m)
10-ft. (3-m)
20-ft. (6-m)
Custom Lengths
3-ft. (0.9-m)
6-ft. (1.8-m)
10-ft. (3-m)
20-ft. (6-m)
Custom Lengths
Plenum, Solid
10-ft. (3-m)
25-ft. (7.6-m)
50-ft. (15.2-m)
100-ft. (30.4-m)
150-ft. (45.7-m)
10-ft. (3-m)
25-ft. (7.6-m)
50-ft. (15.2-m)
100-ft. (30.4-m)
150-ft. (45.7-m)
Why Buy From Black Box? Exceptional Value.
Exceptional Tech Support. Period.
Recognize any of these situations?
• You wait more than 30 minutes to get through to a vendor’s tech support.
• The so-called “tech” can’t help you
or gives you the wrong answer.
• You don’t have a purchase order number
and the tech refuses to help you.
• It’s 9 p.m. and you need help, but your vendor’s
tech support line is closed.
According to a survey by Data Communi­cations magazine, 90%
of network managers surveyed say that getting the technical support
they need is extremely important when choosing a vendor. But even
though network managers pay anywhere from 10 to 20% of their
overall purchase price for a basic service and support contract, the
technical support and service they receive falls far short of their
expectations—and certainly isn’t worth what they paid.
At Black Box, we guarantee the best value and the best support.
You can even consult our Technical Support Experts before you buy if
you need help selecting just the right component for your application.
Don’t waste time and money—call Black Box today.
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