Wi-Tek WI-POE22E-O Extends PoE 100 Metres From Extender Location In Larger Security Applications.
Wi-Tek WI-POE22E-O Extends PoE 100 Metres – Wi-Tek’s new WI-POE22E-O is an outdoor PoE extender designed to extend Ethernet and power connections beyond the standard 100m cable limit.
PoE distance, explainedThe 100-metre rule, and how one extender doubles the reachGigabit Ethernet, and the PoE riding on it, is specified over a 100 m channel. Past that, link and power aren’t guaranteed. An extender at the 100 m mark starts the count again.
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With the extender at 100 m.A further 100 m from the extender to each device, two Gigabit PoE outputs, and no mains power at the pole.
~200 mSwitch to device, via one extender
90 W inOne Gigabit 802.3bt PoE input
30 W + 60 WTwo Gigabit PoE outputs
IP68Fanless, −40 to 75°C
Source. The 100 m channel is the 1000BASE-T (IEEE 802.3) limit. Ports, power, IP68 and temperature range as stated by Wi-Tek and reported by SEN. The ~200 m figure is a SEN calculation: up to 100 m to the extender plus Wi-Tek’s stated further 100 m. Device positions are illustrative.
The unit incorporates 2 Gigabit PoE outputs from a single PoE input making it well suited to applications such as IP cameras, wireless access points and other networked devices where devices need to be routed further than planned. This unit is IP68 rated, too, so it can survive complete immersion.
The unit draws up to 90W of 802.3bt PoE through its Gigabit input and delivers a 30W 802.3af/at output and a 60W output. Both outputs support Gigabit Ethernet, allowing the extender to provide power and data to 2 downstream devices without requiring a separate local power supply. The manufacturer specifies a further 100m long-range PoE transmission from the extender.
Work it out for your site30 W plus 60 W out, 90 W in. Does it add up?Not at full stretch. Cable loss eats into the 90 W before it reaches the extender, and again on the way out. Set your run and your devices to see the margin.
PoE source at the switch
The first hop, up to 100 m.
Applied to both outputs.
Power the device needs, e.g. a fixed camera with IR.
e.g. a PTZ with heater, or an access point.
Wi-Tek does not publish this.
Arrives at extender
71.3 W
Extender must send
59.3 W
30 W-port device60 W-port deviceCable loss outExtender
12.0WHeadroom
71.3 W arrivesafter 100 m from a 90 W port, and the extender needs 59.3 W to run both devices at 100 m.
Source. Port ratings as stated by Wi-Tek. Power at the far end of 100 m (71.3 W, 51 W, 25.5 W from 90, 60 and 30 W sources) is the IEEE 802.3bt/at worst case. Scaling loss with length and treating the 60 W “Hi-PoE” port like 802.3bt Type 3 are SEN approximations; the extender’s own draw is your assumption. A sizing sketch, not a design document.
Wi-Tek WI-POE22E-O Extends PoE 100 Metres
Designed for external deployment – you can run it on internal applications as well – the WI-POE22E-O has an IP68-rated enclosure and fanless construction, with an operating temperature range of -40 to 75C, allowing it to survive inside pole mounted metal housings. The unit measures approximately 150 x 73 x 44mm and can be wall mounted or installed on a desktop.
The Wi-Tek WI-POE22E-O supports IEEE 802.3af, 802.3at and 802.3bt PoE standards, with store-and-forward switching, automatic MAC address learning and IEEE 802.3x flow control. Industrial protection is provided against ESD, surge, EFT and conducted susceptibility, while the plug-and-play design requires no configuration – this is a solid little unit for bigger applications.
You can learn more about the Wi-Tek WI-POE22E-O here or reach out to local suppliers – Secusafe here and Zankap here spring to mind – there’s more SEN news here.
Where to get itPricing a long run? Talk to an Australian Wi-Tek supplier
Secusafe and Zankap both list Wi-Tek. Ask for stock, the extender’s own power draw, and whether your devices will negotiate on the 60 W Hi-PoE port.
1 × Gigabit 802.3bt PoE in, up to 90 W1 × Gigabit PoE out, 30 W1 × Gigabit PoE out, 60 WFurther 100 m from the extenderIP68, fanless−40 to 75°CPlug and play
Power1 × Gigabit 802.3bt PoE input, up to 90 W1 × Gigabit PoE output, up to 30 W1 × Gigabit PoE output, up to 60 WNo local power supply needed
Reach100 m long-range PoE transmission from the extenderTwo downstream devices, power and data802.3af, 802.3at and 802.3bt support
EnvironmentIP68 outdoor protectionFanless industrial design−40 to 75°C operating temperatureESD, surge, EFT and conducted-susceptibility protection
InstallationPlug and play, no configurationWall or desktop mountingAbout 150 × 73 × 44 mmStore-and-forward, MAC learning, 802.3x flow control
Source. Features as stated by Wi-Tek and reported by SEN. Distributors describe the 60 W output as Wi-Tek “Hi-PoE” rather than 802.3bt. Not published: the extender’s own power draw, IP68 test depth and duration, and whether units can be cascaded. Check with your supplier.
Questions & AnswersLong PoE runs and the WI-POE22E-O: what installers askWhy is there a 100 metre limit on PoE?
Gigabit Ethernet (1000BASE-T) is specified over a 100 m channel, and standard PoE rides on the same cable. Past 100 m the link and the power delivery are no longer guaranteed, even if a short test appears to work.
How far can the WI-POE22E-O take a run?
Wi-Tek specifies a further 100 m from the extender. With up to 100 m from the switch to the extender, that is about 200 m end to end for one extender, on standard Gigabit cabling.
Does it need mains power at the far end?
No. It draws up to 90 W of 802.3bt PoE through its Gigabit input and powers both outputs from that, so there is no local power supply at the pole or wall.
Can I run a 60 W device and a 30 W device together?
Not both at full rating over long runs. A 90 W 802.3bt port delivers about 71.3 W after 100 m, and the extender and its outgoing cables use some of that. Use the power calculator above to check your loads.
Is the 60 W output 802.3bt?
Wi-Tek lists the 30 W port as 802.3af/at. Distributors describe the 60 W port as Wi-Tek Hi-PoE rather than 802.3bt, so confirm with your supplier that a specific bt device will negotiate power on it.
Will it survive inside a pole-mounted housing?
It is rated IP68, fanless and specified for −40 to 75°C, with protection against ESD, surge, EFT and conducted susceptibility. Allow for heat build-up inside a sealed metal housing in full sun.
Does it need configuring?
No. It is plug and play, with store-and-forward switching, automatic MAC address learning and IEEE 802.3x flow control. There is no management interface to set up.
Answers draw on Wi-Tek’s stated specs, distributor listings (the Hi-PoE naming) and the IEEE 802.3 standards; derived figures are SEN calculations.
“Wi-Tek WI-POE22E-O Extends PoE 100 Metres From Extender Location In Larger Security Applications.”
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