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Understanding PoE: crucial for installing intelligent lighting
Underst dna crucial fo
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over Ethernet) in inverEthernet) ininteltelligligigent light ngap elelectrician now, ac ord
rder tocopewitpe wiiththegrowth the growing nt
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Networksworks.. PoEtesters can onduct quic sworkan
etworks.PoE tes conduonductqu guessw
“ a edfromITd building sys and ac ess c qui k, accur wor andgetting ices into
Injust a few short years theuseofPoE hasmigrathas migrated from IT devices into building systems like lighting, HVAC andaccess control,” explainsTim ddershoven,marke etworks. “How
y ems like lighting,HVAC l,” explains Tim
VA
Widdersho en, marketing director for Ideal Networks. “However, the growth of PoE presents issues for electricians, who may hav ne erhadc
etingdirector f r I eal r, the gr wthofP
al
presents issues f r electricians,w omay have never had cause to work on anything other than traditional electrical cablebl nfrastructur
a se towo w onanything
other thantradi ional electrical cab iinfrastructure. PoE offe
ffectiv
““PoE offers clear benefits in many applications, not least that installing just one set of cabling infrastructure is less disruptive and generally more cost effe
ffers clear benefits inmany applications
not least that installing just one set of cabling infrastructure is less disruptive and generally more cost effective,” he continues “So, to stay ahead of clients’ demands, it’s crucial for electricians to learn the necessary PoE testing and troubleshooting skills now
he continues. “So, to sta
ahead of clients demands, it s crucial fofor electricians to learn the necessary PoE testing and troubleshooting skills now.” n 2018 a new standar
In 2018 a new standard, IEEE 802.3bt, was, IEEE 802.3bt, was
ansneedtomasternewsk ding to supplier of daingtosupplier of
wing use of Pi ta cable
guesswork and getting the job done faster. In just a f wshortyears the use of PoE
r
uick,accurate PoE vali at on,elimi atingminating obdonef ster.
sterscanhe pelectricians toan help ell validation
uratePoEva dation, eliminat ng ngthejobdo
ratified and provides the specifications for PoE equipment to provide up 90 watts of power t devices over twisted-pair Ethernet cabling This amount of power combined with high-efficienc LED light fixturesmakes PoE lighting practical ith 60-90 watts of power available,multiple luminaries or troffe
single port on a PoE Ethernet switch, g eatly reducing the total system cost and simplifying the installation.
ratified and provides the specifications fofor PoE equipment to provide up 90 watts of power to devices over twisted-pair Ethernet cabling. This amount of power combined with high-efficiency LED light fixtures makes PoE lighting practical. With 60-90 watts of power available, multiple luminaries or troffers can be daisy chained from a single port on a PoE Ethernet switch, greatly educing the total systemcost and simplifyfying the installation.
“Electricians installing or servicing PoE lighting systems need to be familiar with the
components of PoE lighting systems to ensure proper operation and easily troubleshoot an problems that arise says Tim. “Even when live a oE systemis not always ener
ised, so this
means that fafamiliar,, standard electrical testing tools cannot be used to test PoE systems.”
components of PoE lighting systems to ensur proper operation and easily troubleshoot any problems that arise,” says Tim. “Even when live a PoE system is not always energised, so this means that familiarr, standard electrical testing ools cannot be used to test PoE systems
nstead, there is a range of PoE testers on the market, from simple LED voltage detectors (like a neon
Instead, there is a range of oE testers on themar et, fromsimple LED voltage detec ors (like a neon
electrical outlet checker) to esters whichmeasur
electrical outlet checker) t testers which measure
voltage and power available o the P
on a circuit.
the PoE P omulti-function PoE tester from IDEAL
Networks, which measures and reports PoE Class
Net orks, whichmeasures and reports PoE Class,
voltage/voltage drop, watts and injec or type,making it easy to see howmuch power is available
Previously electricians would have needed to understand all the various standards, device power
eviously electricians ould ha e needed t
understand all the various standards, device power
34 34 | electrical wicalwholesalerApril 2020 ele lectric wholesalerAp le pril2020
oltage/voltage drop, watts and injector type, making it easy to see how much power is available.
oltage and power available to the Powered Devices (PD) on a circuit. For example, the PoE Pro multi-function oE tester fromIDEAL
ered D vices (PD) or example
“Electricians installing or servicing PoE lighting systems need to be fafamiliar with the
for installing intelligent lighting
row nguseof oE (Powe ent liightingapplilication
electricians need to mastster new skills and equipm n now
nt lighting applications at
sters Idea
ofPoE(Powerwer ons,
ewskillsandequ pment ofdatacab e tesblletesters Ide ectricians to
quipment eall
ingP :Eo
ffers can be daisy chained froma
outputs and cable lengths to be sure a device will operate successfully. How er,r, with PoE P instant, easy to read test results are shown on the large backlit screen, up to amaximumof 90W egardless of cable length, cable quality or other ac ors
ffa
oE test equipment, such as IDEAL Net orks PoE Pro, can also be used to highlight issues with cable quality. For instance, electricians may encounter copper-clad aluminium (CCA) cable which is constructed primarily of aluminium conductors coated with a thin skin of copper. CCA has a much higher resistance than solid copper cable and should not be used in PoE applications, but due to its very low comparative cost, can offten be ffound in intelligent lighting installations “The rise of PoE presents electrical contractors with a fafantastic opportunity to confidently expand their service offe
ound in intelligent lighting installations. he rise of PoE presents electrical contrac ors with a fantastic opportunity to confidently expand their service offering,” says Tim. “Electricians who are equipped with the right esting tools and a functional knowledge of PoE systems will be able to both ensure that new installations deliver the expec ed perfo and quickly identify fa troubleshooting
ffering says Tim.
“Electricians who are equipped with the right testing tools and a functional knowledge of PoE systems will be able to both ensure that new installations deliver the expected performanceormance and quickly identify faults whenfy faults when troubleshooting.”
For more information, visit
idealnetworks.net
ormore information, visit
www..idealnetworks.net
ewnews..co.u
ewnews.co..uk
PoE test equipment, such as IDEAL Networks’ oE P , can also be used to highlight issueswith cable qualit . For instance, electriciansma encounter copper clad aluminium(CCA) cable which is construc ed primarily of aluminium conduc ors coatedwith a thin skin of copper. CCA has amuch higher resistance than solid copper cable and should not be used in PoE applications but due to its very lowcomparative cost, can often be fo
outputs and cable lengths to be sure a device will operate successfully. However, with PoE Pro, instant, easy to read test results are shown on the large backlit screen, up to a maximum of 90W, regardless of cable length, cable quality or other factors.
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