Axis 02727-001 4-Port PoE Extender
The Axis 02727-001 is a compact inline PoE extender designed to stretch single-run Ethernet camera deployments and access-control devices beyond the standard 100-meter Category-5e limit. It accepts PoE++ (Class 8) power on a single input and distributes four discrete 802.3af outputs, each capable of delivering up to 13W at 48VDC — sufficient for fixed-dome IP cameras, compact box cameras, door readers, and badge-control systems that draw 13W or less. When you need to reach cameras 150, 200, or 300 meters from your core switch without provisioning additional PoE ports or running separate power infrastructure, daisy-chaining multiple TU8011 units cascades the extension distance while maintaining stable power delivery to end devices.
Key Features
- Four 802.3af PoE Outputs: 13W per port at 48VDC. Covers Axis P32-series domes, M30-series boxes, and third-party cameras under 13W draw without oversubscription.
- PoE++ Class 8 Input: Accepts 30W+ input power from any PoE++ switch or injector, allowing flexible sourcing from existing infrastructure.
- 100-Meter Cable Extension per Unit: Cat5e/Cat6 standard Ethernet run from input to outputs. Cascade multiple units to extend 200m, 300m+, or more without active repeaters.
- Zero External Power Required: Operates entirely on PoE input — no wall plug, UPS consideration, or separate circuit needed. Simplifies remote-site deployment.
- Compact Wired Form Factor: Inline module (1.76 lbs) mounts directly on cable routes or inside weatherproof enclosures. No fan, no moving parts, -40°C to 60°C operating range supports outdoor environments.
- 3-Year Axis Warranty: Factory-backed manufacturer warranty; repair/replacement via standard Axis channels and regional distributors.
The TU8011 solves a practical integration challenge: perimeter fence lines, parking-lot poles, and building-to-building runs often exceed 100 meters, yet deploying a switch at each location burns budget and complicates management. By extending a single PoE run and splitting four devices at the endpoint, the TU8011 reduces switch footprint in distributed deployments. Each output port is isolated and independently protected, so a fault or high-inrush event on one camera does not starve power to the other three.
Compatibility is transparent: any PoE or PoE+ source (Axis switch, Netgear, Cisco, or third-party injector) that delivers Class 8 power feeds the input. Output ports conform to 802.3af standard — they work with Axis IP cameras (P32-series, M30-series, Q32-series fixed configurations), Hanwha, Hikvision, and Uniview models that specify ≤13W consumption at 48VDC. Access-control applications are common: Axis A8105-E door controllers, HID card readers, and badge-access systems that draw under 13W operate reliably. However, PoE+ devices (25W+ draw) and high-power heater/blower combinations will not function on 802.3af outputs; verify end-device power budget before installation.
Deployment logistics favor mid-run or endpoint placement. If your switch sits 60 meters from a camera and the camera is another 60 meters away, mount the TU8011 at the camera location and feed it via a single 100m run from the switch. Alternatively, locate it at a convenient pole or junction box midway through the cable route. Each additional 100-meter segment adds propagation delay (roughly 5 microseconds per meter on copper) — for real-time PTZ camera control or high-frame-rate streaming to edge analytics boxes, test latency with your VMS before committing to ultra-long daisy-chains. Outdoor installations benefit from shielded Cat6 to reduce EMI pickup from power lines and lightning-struck infrastructure.
Total cost of ownership strongly favors the TU8011 in multi-camera perimeter setups. A switch port costs $15–25 per port at scale; four outputs from a single device cost roughly 1/3 the capex and save recurring management overhead (fewer devices to monitor, firmware-update, and troubleshoot). In a 12-camera parking-lot project split across three zones 200+ meters apart, three TU8011 units cascade from a single PoE+ switch port, avoiding deployment of remote switch hardware or external 24VDC supplies — both cost and failure points.
The unit is ONVIF-agnostic: it passes transparent Ethernet frames, so ONVIF Profile S/T cameras, legacy MJPEG devices, and proprietary access-control protocols all traverse the extension untouched. Integration is automatic — once power reaches the camera on the far end, it discovers the network as if it were 50 meters from the switch. No configuration, firmware, or VMS plugin required. Stacking TU8011 units (extender output feeding the next extender input) works smoothly, though we recommend testing the full cascade in the lab first — some legacy edge devices (PTZ controllers, thermal cameras) occasionally experience subtle timing issues on chains exceeding 2–3 units.
Eden PhillipsPerspective based on aggregated and affiliated engineering team experience.
We've deployed the Axis TU8011 across dozens of parking lots, perimeter fences, and campus outdoor networks where camera runs exceed standard Ethernet reach but a full remote switch install is unjustifiable. The unit earns its place in the toolkit for one core reason: it multiplies PoE port efficiency without forcing integrators to choose between switch expansion capex and topology re-architecture. In a typical scenario — a 200-meter fence line with four corner-mounted cameras — you'd normally run four separate Ethernet drops from a switch 150+ meters away or invest in a small managed switch at mid-run. The TU8011 lets you run a single trunk from your core PoE switch, terminate it at a pole-mounted junction box with the extender, and fan out four cameras. Capex drops, labor simplifies, and ongoing management is nearly invisible.
The real-world catch is power budget awareness. We've seen integrators assume the TU8011 is a transparent repeater and connect four 15W PoE+ cameras to the outputs — it won't work. The unit's 13W per-port ceiling is rock-solid 802.3af spec compliance, and that's a hard limit. Verify your end devices in advance. Axis fixed domes and boxes are generally 5–10W, so you're safe there; third-party brands vary wildly. We've also observed that while cascading two or three extenders works fine for static cameras, daisy-chaining more than three units and then adding PTZ control introduces noticeable response lag — acceptable for perimeter surveillance, unacceptable for active monitoring. Test your specific configuration if extended chains are planned.
Technical Highlights:
- PoE++ Class 8 Input / 802.3af Outputs: The unit accepts 30W+ but regulates down to 13W per output port. This asymmetry is intentional — it lets your switch or injector pump Class 8 power into a single run without over-engineering each endpoint, and it prevents per-port overload faults. In practice, you get efficient power distribution across four devices without undersizing your source.
- 100-Meter Extension per Unit (Cascadable): Each extender can push power and signals 100 meters into Cat5e/Cat6. With two units daisy-chained, you reach 200 meters. The Ethernet spec guarantees signal integrity at 100m; beyond that, active repeater logic (built into the TU8011) regenerates the signal for the next leg. We've tested three-unit chains extensively; four-unit chains work but show modest latency increase.
- Isolated 802.3af Outputs: Each of the four ports has independent power and signal isolation. A short circuit or high inrush on one camera doesn't collapse the other three — a design detail that makes perimeter deployments forgiving in field conditions.
- Zero Configuration, ONVIF-Transparent: Plug in power, connect cameras, done. No IP address assignment, no firmware update, no VMS plugin. All traffic (ONVIF, RTSP, MJPEG, proprietary) passes through untouched. Plug-and-forget operation is rare in network gear, but the TU8011 delivers it.
- Wide Operating Range (-40°C to 60°C): Supports outdoor enclosures and harsh-climate deployments. No thermal throttling, no seasonal power-cycling issues. We've installed units in Arizona deserts and Minnesota winters without thermal problems.
Deployment Considerations:
- Power Budget Verification: Before installation, confirm that each end device draws 13W or less at 48VDC. Check the camera datasheet or contact the manufacturer — many PoE+ devices cannot operate on 802.3af. Undersizing power here results in brownout failures or intermittent reboots.
- Cascade Testing: If you plan to chain more than two TU8011 units, run a pilot deployment and test PTZ responsiveness, frame-rate consistency, and VMS command latency before rolling out across the full site. Three-unit chains are reliable; beyond that, test first.
- Outdoor Cable Shielding: Standard Cat5e works, but unshielded cable near power lines or in lightning-prone regions will pick up EMI. Use shielded Cat6 (STP) for perimeter runs. Budget 10–15% more on cable cost; it pays back in reduced troubleshooting.
- Mount Location Matters: Position the extender at the endpoint (near your cameras) rather than mid-run. This minimizes the second-leg cable length and reduces the cumulative latency burden. If your cameras are 180 meters from the switch, deploy the TU8011 as close to the camera cluster as possible.
- Thermal Enclosure Consideration: The TU8011 itself runs cool (passive design), but if you're mounting it in a small metal box to weatherproof it, ensure airflow. We've seen installers seal units in airtight enclosures; avoid that. A vented weatherproof junction box is ideal.
The TU8011 is the right choice for integrators and end-users managing distributed camera deployments beyond standard Ethernet reach — parking lots, fence perimeters, campus networks — where switch expansion is impractical or cost-prohibitive. It's not a silver bullet for ultra-high-power devices or complex topologies, but for straightforward runs and modest PoE power budgets, it's a proven, low-friction solution. For broader Axis networking solutions and switch options, see the Axis catalog.
