Altronix NETWAYSP2BTWPX 2-Port 802.3BT PoE Power Supply and Injector
Overview
The Altronix NETWAYSP2BTWPX is a hardened, outdoor-rated two-port 802.3BT power supply and PoE injector built for surveillance deployments where power and data need to reach high-demand edge devices in environmentally exposed locations. Housed in a NEMA 4/4X, IP66-rated enclosure and rated from -40°C to 60°C, this unit goes where standard rack-mount gear cannot — think parking garages, building exteriors, perimeter fence lines, and industrial yards. At 90W output per port with a 240W total output budget, it comfortably powers two 802.3BT Class 6 or lower devices simultaneously, including multi-sensor cameras, PTZ units, and access control panels with electric locks.
Beyond raw power delivery, the NETWAYSP2BTWPX integrates battery backup support for two 12VDC batteries (providing 24V of standby capacity), keeping connected devices online through brief outages without relying on a distant UPS in a server room. An SFP fiber port extends the network reach beyond copper limitations, making this a complete edge power and connectivity node rather than a simple injector.
Key Features
- 90W Output Per Port (802.3BT): Each of the two RJ45 data ports delivers up to 90W — enough headroom for the most power-hungry 802.3BT devices including high-end PTZ cameras, multi-sensor panoramic units, and dual-head access control readers. Running at 90W per port means you are not forced into a shared-power compromise when both ports are loaded simultaneously, since the 240W total output budget supports near-full load on both channels.
- 240W Total Output at 56VDC: The 56VDC output rail supplies the 240W system budget at 6.4A. This is a meaningful spec for integrators calculating wire runs — 56V source voltage reduces resistive losses over the full 100m CAT5e span more effectively than 48V-class supplies, preserving margin at the device end of long home-run pulls.
- NEMA 4/4X and IP66-Rated Enclosure: This is not an indoor-grade box slipped into a weatherproof cabinet — the NETWAYSP2BTWPX enclosure is independently rated NEMA 4, NEMA 4X, and IP66. That means it handles wind-driven rain, hose-directed water, dust, and corrosive environments. NEMA 4X specifically adds resistance to corrosion, critical in coastal, industrial, or chemical-adjacent sites where standard powder-coat fails within two years.
- -40°C to 60°C Operating Range: Operational from extreme cold to desert heat without supplemental heating or cooling. Most competing outdoor injectors are rated to -20°C or -30°C — the extra headroom matters in northern climates, cold-storage perimeters, and unheated equipment enclosures where January temperatures spike power draw on marginally-rated gear.
- Integrated Battery Backup — Two 12VDC Batteries: The onboard charging circuit (24VDC, 0.75A) supports two 12VDC batteries in series, delivering 24V standby capacity. Compatible with LiFePO chemistry or four sealed lead-acid/gel-type batteries. This keeps cameras and access control hardware live during short power interruptions without running a conduit back to a central UPS — a real labor and cost saver on remote exterior mounting points.
- 1Gb SFP Fiber Port: The fiber uplink breaks the 100m copper constraint, allowing this unit to sit at the far end of a long fiber run and inject power locally into the final copper segment. For campus-scale deployments with buildings or structures beyond the 100m Ethernet limit, this means a single fiber backbone with local PoE injection at each node rather than active repeaters or mid-span injectors at every run.
- 10/100/1000 Mbps RJ45 Data Ports with 4-Pair CAT5e Support: Full gigabit throughput on both data ports ensures the power supply doesn't become a network bottleneck, even as cameras shift toward 4K and multi-stream encoding. 4-pair CAT5e wiring is the minimum cable grade — verify that any existing cable plant meets this spec before assuming compatibility, particularly in older installations with 2-pair legacy runs.
- Wide AC Input Compatibility: Accepts 115VAC/60Hz at 2.5A or 230VAC/50-60Hz at 1.3A, with a 5A/250V input fuse. The dual-voltage input makes this unit deployable in international installations without a transformer, and the onsite-replaceable blade fuse avoids service calls for a blown protection component.
- 100m Maximum Reach on Copper: Standard IEEE 802.3 copper distance limit applies. At full 90W load per port, verify that the installed cable meets CAT5e or better specifications end-to-end — degraded connectors, poor patch terminations, or mixed-gauge pigtails compress the usable power delivery range before the electrical distance limit is reached.
Integration and Compatibility
The NETWAYSP2BTWPX fits into the Altronix power and infrastructure ecosystem alongside their indoor PoE injectors, power distribution modules, and rackmount supplies. The dual RJ45 ports support any 802.3BT, 802.3at (PoE+), or 802.3af (PoE) compliant device — the injector negotiates class automatically, so lower-class devices simply draw what they need without damage. For IP camera deployments, pair this unit with outdoor IP cameras that require 802.3BT power; for access control on perimeter gates, it supplies both the reader and electric lock load from a single port on compatible dual-output controllers. When speccing the fiber uplink, confirm the SFP module type (single-mode vs. multimode) matches the installed fiber plant — the SFP slot is 1Gb but the transceiver is field-installed and not included. For system-wide power planning, consult a PoE planning guide to map total wattage demand before selecting injector counts. Complement this unit with PoE switches on the backbone side where centralized management is preferred over distributed injection.
Frequently Asked Questions
Q: What is the maximum PoE wattage the NETWAYSP2BTWPX delivers per port?
A: Each port delivers up to 90W under the 802.3BT standard. The unit's total output budget is 240W across both ports, so simultaneous full-load operation on both ports is supported within that ceiling.
Q: What battery types are compatible with the NETWAYSP2BTWPX backup circuit?
A: The charging circuit supports LiFePO (lithium iron phosphate) batteries or up to four sealed lead-acid or gel-type 12VDC batteries. The circuit charges at 24VDC, 0.75A, so battery runtime depends on the capacity of the batteries installed — the unit accommodates two 12VDC batteries wired in series for 24V standby.
Q: Can the NETWAYSP2BTWPX be mounted outdoors without an additional enclosure?
A: Yes. The enclosure carries NEMA 4, NEMA 4X, and IP66 ratings, meaning it is designed for direct outdoor installation and withstands wind-driven rain, hose-directed water, dust ingress, and corrosion. No external weatherproof cabinet is required.
Q: What fiber SFP module does the NETWAYSP2BTWPX require?
A: The unit includes a 1Gb SFP port. The SFP transceiver itself is field-installed and not included with the unit. Select a single-mode or multimode SFP module that matches your installed fiber type and the distance of the fiber run.
Q: What is the operating temperature range of the NETWAYSP2BTWPX?
A: The unit operates from -40°C to 60°C (-40°F to 140°F), with a storage temperature range of -40°C to 85°C. This rating covers extreme cold-climate installations without supplemental heating.
Q: Does the NETWAYSP2BTWPX support both 115VAC and 230VAC input?
A: Yes. The unit accepts 115VAC/60Hz at 2.5A or 230VAC at 50/60Hz at 1.3A, making it suitable for both North American and international installations. A 5A/250V input fuse provides overcurrent protection.
The spec that drives most of my NETWAYSP2BTWPX recommendations is the -40°C floor on the operating temperature range. I've worked on enough northern perimeter deployments where a competing outdoor injector failed its first winter because the manufacturer's -20°C rating looked fine on paper until a cold snap hit -28°C and the unit simply stopped negotiating PoE. This unit's thermal range removes that conversation entirely.
Technical Highlights:
- 90W Per Port / 240W Total: At 56VDC output with 6.4A total current, this unit comfortably handles two simultaneous 802.3BT Class 6 devices — multi-sensor panoramic cameras or PTZ units with integrated IR — without shared-power throttling.
- NEMA 4X + IP66 Enclosure: NEMA 4X goes beyond standard weatherproofing to include corrosion resistance. In coastal or industrial environments where salt air or chemical spray is a factor, this rating means the enclosure outlasts the cameras it's feeding.
- Integrated Battery Backup with LiFePO Support: The 24VDC / 0.75A charging circuit and LiFePO battery compatibility give this unit a longer service interval than lead-acid-only designs — LiFePO cells tolerate partial state-of-charge cycling far better, which is exactly what you see in short-outage scenarios at unstable grid edges.
Deployment Considerations:
- The 1Gb SFP transceiver is not included — specify single-mode or multimode at order time based on your backbone fiber type. Forgetting this step on a remote mounting point adds a truck roll to an otherwise clean install.
- At full 90W load per port, cable quality matters across the full 100m run. Older in-wall CAT5 (not CAT5e), degraded connectors, or keystone jacks with compromised pair continuity will compress your effective power delivery range before you hit the electrical distance limit.
This unit is the right call for hardened perimeter deployments at industrial facilities, campus entry points, or any exterior location where the power source is local, the network uplink is fiber, and the connected devices are high-wattage 802.3BT loads that cannot tolerate outages.
