Altronix NETWAYSP2BTWPN 2-Port 802.3bt PoE Converter and Fiber Injector
Overview
The Altronix NETWAYSP2BTWPN is a hardened 2-port IEEE 802.3bt PoE converter and injector built for outdoor and industrial deployments where a standard switch won't survive and a single fiber run needs to terminate into high-wattage edge power. It accepts 48–56VDC input at up to 3.5A (180W total), converts it across two RJ45 outputs each capable of 90W max, and bridges a 1Gb SFP fiber uplink — giving integrators a compact, weatherproof node for PTZ cameras, multi-sensor heads, access control panels, or any 802.3bt-class device at the edge of a fiber backbone.
Key Features
- 90W per port, 802.3bt compliant: Each of the two RJ45 outputs delivers up to 90W — enough for the most demanding PoE++ devices including 4K multi-imagers, pan-tilt-zoom cameras with integrated IR, and dual-radio wireless APs. The unit is backward-compatible with 802.3at and 802.3af devices, so it works across a mixed install without re-cabling.
- 1Gb SFP fiber uplink: The single SFP port handles 10/100/1000 Mbps, letting you extend a fiber backbone to within 100m of the edge device over standard 4-pair CAT5e — no separate media converter required. The fiber run itself is immune to ground loops and lightning-induced surges that would kill a copper uplink in an exposed outdoor segment.
- NEMA 4/4X and IP66-11 enclosure: The cast enclosure meets NEMA 4 and 4X ratings — sealed against rain, sleet, windblown dust, and corrosive wash-down. IP66 confirms the same via IEC. This is a unit you can mount on a pole, on a rooftop parapet, or inside a parking structure without a secondary weatherproof housing.
- Wide operating temperature range (varies by load): At 60W load the unit runs from -40°C to 75°C; at 80W from -40°C to 70°C; at the full 90W per port it derate to -40°C to 60°C. For cold-climate deployments driving high-wattage cameras at maximum output, verify your worst-case ambient stays under 60°C — an easy target outdoors but worth checking in enclosed equipment cabinets in warm regions.
- 180W input power headroom: The 48–56VDC, 3.5A input budget totals 180W — enough to simultaneously drive both ports at near-maximum load. Pair with an Altronix power supply sized to that input spec; undersizing the upstream supply is the single most common field failure on high-wattage PoE injectors.
- CAT5e at up to 100m: Standard 4-pair CAT5e to the end device keeps cable costs predictable. No exotic cabling required — the 100m Ethernet reach covers most pole-top and building-perimeter camera runs.
- Altitude-rated to 2,000m: Thermal derating at altitude is pre-characterized from 304.8m to 2,000m, relevant for mountain-site installations where thinner air reduces convective cooling.
Integration and Compatibility
The NETWAYSP2BTWPN fits naturally into fiber-backbone surveillance architectures where a managed PoE switch is impractical at the edge. The SFP port accepts standard LC or SC SFP modules (single-mode or multimode depending on the run) — source the SFP separately matched to your fiber plant. On the device side, any 802.3af, 802.3at, or 802.3bt compliant end-point connects directly over CAT5e. The unit functions as a converter/injector, not a managed switch, so there is no VLAN or QoS configuration — all data passes transparently. Plan accordingly if your deployment requires per-port traffic isolation at this node; a managed fiber switch will be the right upstream choice in those cases.
For Altronix power and networking products, this unit pairs logically with Altronix power supplies that output in the 48–56VDC range. Integrators building outdoor PoE distribution infrastructure will find the NETWAYSP2BTWPN useful as a terminal injector node where the fiber plant ends and copper begins. See the PoE planning guide for switch budget calculations before specifying upstream equipment, and review outdoor IP camera power requirements to confirm 802.3bt draw at your chosen devices.
Frequently Asked Questions
Q: What PoE standards does the NETWAYSP2BTWPN support?
A: The NETWAYSP2BTWPN is compliant with IEEE 802.3af, 802.3at, and 802.3bt — covering 15.4W, 30W, and up to 90W per port respectively. Connected devices negotiate the appropriate power class automatically.
Q: What fiber uplink does the NETWAYSP2BTWPN use?
A: It has one 1Gb SFP port. You supply the SFP module matched to your fiber type and run distance — the unit does not include an SFP transceiver.
Q: Can the NETWAYSP2BTWPN be mounted outdoors without an additional enclosure?
A: Yes. The enclosure is rated NEMA 4/4X and IP66-11, meaning it is sealed against rain, dust, and corrosive environments. No secondary weatherproof housing is required for standard outdoor pole or wall mounting.
Q: Does temperature affect the maximum output power of the NETWAYSP2BTWPN?
A: Yes — the maximum ambient operating temperature derate by load: 75°C at 60W, 70°C at 80W, and 60°C at 90W per port. In hot enclosed spaces driving both ports at full 90W, verify ambient stays under 60°C.
Q: What input power supply does the NETWAYSP2BTWPN require?
A: It requires a 48–56VDC supply rated at up to 3.5A (180W). This is not a PoE switch — it must be powered by a separate DC power supply, typically a dedicated Altronix or compatible 48VDC unit.
Q: How far can the NETWAYSP2BTWPN reach end devices over copper?
A: Up to 100 meters over 4-pair CAT5e, which is the standard IEEE 802.3 Ethernet reach. The fiber uplink side has no inherent distance limit beyond what the SFP module supports.
The spec that defines where the NETWAYSP2BTWPN belongs in a design is the thermal derating curve — at full 90W per port, the unit's maximum ambient drops to 60°C. That sounds generous until you factor a dark-painted steel enclosure on a south-facing wall in midsummer. Size the deployment so ambient at the cabinet interior stays comfortably under that ceiling, and this unit is a clean fit for pushing 802.3bt power to the edge of a fiber backbone without a rack.
Technical Highlights:
- 90W per port (802.3bt): Both RJ45 outputs can simultaneously deliver up to 90W — enough for the highest-draw PTZ and multi-sensor cameras on the market, with the 180W input budget large enough to fully load both ports without clipping.
- NEMA 4/4X + IP66-11 enclosure: The sealed cast housing handles rain, dust, and wash-down environments. At 9.5 × 7.32 × 4.92 inches and 10.5 lb, it is pole-mountable without a separate outdoor cabinet — a meaningful installation cost reduction on perimeter camera runs.
- 1Gb SFP uplink: The fiber-to-copper bridge is built in — no separate media converter box needed at the fiber termination point. The SFP slot accepts standard 1G modules, so you match the transceiver to whatever fiber plant is already in the ground.
Deployment Considerations:
- The NETWAYSP2BTWPN requires an external 48–56VDC supply rated to 3.5A. Pair it with an Altronix power supply explicitly rated to that input spec — undersizing the upstream supply at a 2-port 90W injector is the fastest path to intermittent resets under load.
- The SFP transceiver is not included. Specify the SFP module at design time based on fiber type (SM vs MM) and run distance — overlooking this is a common field delay on fiber-edge PoE projects.
The NETWAYSP2BTWPN is the right call for outdoor perimeter camera nodes on a fiber backbone — specifically where you have two high-wattage 802.3bt devices (PTZ cameras, multi-imagers) at the same mounting location and need to terminate the fiber run and inject power in a single weather-sealed unit, without running conduit back to a rack-mounted switch.
