Altronix NETWAY4E1BTWPX3 4-Port 802.3bt PoE++ Outdoor Managed Switch with Battery Backup
Overview
The Altronix NETWAY4E1BTWPX3 is a hardened outdoor PoE++ switch built for security integrators who need to power high-draw devices — PTZ cameras, multi-sensor heads, pan-tilt units, access control panels, and wireless APs — in environments where a standard indoor switch simply doesn't belong. Four 10/100/1000 Mbps PoE++ ports deliver up to 90W each against a 360W total power budget, and the NEMA 4X/IP66-rated enclosure keeps the unit operational from -30°C to 70°C. If your deployment sites include exterior cabinets, rooftop equipment rooms, or unheated utility closets, this is the class of device to evaluate.
The unit is part of Altronix's Altronix NETWAY series of field-deployable PoE infrastructure — a line built specifically around physical security installation requirements rather than repurposed IT closet hardware.
Key Features
- 360W Total PoE Budget Across 4 Ports: With 90W available per port under IEEE 802.3bt (PoE++), this switch can simultaneously power four high-draw devices — think PTZ cameras pulling 60–75W, or multi-sensor panoramic units that exceed what 802.3at can deliver. The 360W aggregate means you're not forced into load-balancing compromises on a 4-port device. Compare this to a standard 802.3af switch where a single port caps at 15.4W and 4 ports total just 61.6W — a completely different class of power infrastructure.
- IEEE 802.3af/at/bt Auto-Negotiation: The switch auto-detects the PoE class of each connected device, so legacy 802.3af cameras (e.g., fixed lens domes drawing 8–12W) co-exist with 802.3bt PTZ units on the same switch without manual configuration. No jumpers, no per-port mode switches.
- One Gigabit SFP Uplink Port: The fiber-capable SFP slot gives you media flexibility for the network uplink — run fiber back to a core switch in a distant IDF, or use a copper SFP module for a standard Cat6 trunk. This is the right answer when the switch is mounted 300+ feet from the nearest network closet, where copper Ethernet distance limits would otherwise force a media converter.
- NEMA 4/4X and IP66 Dual Rating: NEMA 4X covers corrosive environments (salt air, cleaning chemicals on food processing floors); IP66 means the enclosure resists high-pressure water jets from any direction. Together these ratings cover exterior wall installations, coastal sites, industrial facilities, and anywhere pressure washing is routine. This is not an IP54 'splash-proof' enclosure — it's a genuinely hardened housing.
- -30°C to 70°C Operating Range: A 100-degree Celsius operating window means this unit runs in unheated northern enclosures in January and in sun-baked rooftop cabinets in August without derating. Storage is rated to -30°C to 85°C, so cold-chain delivery or staging in unheated warehouses won't damage the unit before installation.
- Integrated Battery Backup (48VDC, 4 × 12VDC/4AH SLA/Gel): The onboard battery management supports a 48VDC battery string built from four 12VDC/4AH sealed lead-acid or gel-type batteries. This matters on exterior and remote installations where the first thing that fails in a power outage is the PoE infrastructure — and with it every camera in the cabinet. Battery backup keeps connected devices online through brief outages without a separate UPS in the enclosure.
- 56VDC Input Voltage: Operating at 56VDC input (rather than 48VDC) provides the voltage headroom needed to deliver full 802.3bt power levels over longer cable runs without dropping below the PoE standard's minimum device-side voltage. It's a design choice that matters on installations where the switch is at the end of a long cable rather than in a controlled rack.
- CE Compliance: CE marking confirms the unit meets applicable European electromagnetic compatibility and safety directives — relevant for any project with European equipment standards requirements or EU-headquartered end clients.
Integration and Compatibility
The NETWAY4E1BTWPX3 operates with any 802.3af, 802.3at, or 802.3bt PoE-powered device — IP cameras, wireless access points, VoIP endpoints, access control readers, and intercom stations. Because it auto-negotiates PoE class, mixed fleets of legacy and current-generation cameras connect without per-port configuration. The Gigabit SFP uplink integrates into standard enterprise switching fabrics; the SFP slot accepts third-party modules for copper or fiber depending on the run. For sites using network video recorders in a central headend, this switch functions as the edge aggregation point, consolidating four camera feeds into a single uplink trunk.
Battery backup compatibility requires sealed lead-acid or gel-type batteries at 12VDC/4AH each, configured as a 4-battery 48VDC string. Flooded lead-acid or lithium chemistries are not specified for this platform. Review your PoE switch selection against your total per-port wattage requirements before finalizing — 90W per port is the ceiling, not a guarantee if total draw approaches the 360W aggregate.
Frequently Asked Questions
Q: How many watts can each port deliver on the NETWAY4E1BTWPX3?
A: Each of the four PoE ports supports up to 90W under IEEE 802.3bt (PoE++), with a total switch power budget of 360W. Ports auto-negotiate to 802.3af (up to ~15.4W) or 802.3at (up to ~30W) for devices that don't require full PoE++ power.
Q: What type of batteries does the NETWAY4E1BTWPX3 support for backup power?
A: The unit is designed for sealed lead-acid (SLA) or gel-type batteries — four 12VDC/4AH batteries wired in series to produce a 48VDC backup string. Flooded or lithium battery chemistries are not specified for this platform.
Q: Is the NETWAY4E1BTWPX3 rated for outdoor installation?
A: Yes. The enclosure carries NEMA 4/4X and IP66 ratings, meaning it is sealed against high-pressure water jets and corrosive environments. The operating temperature range is -30°C to 70°C, making it suitable for exterior cabinet mounting in most climates.
Q: What does the SFP port on the NETWAY4E1BTWPX3 support?
A: The single SFP port is a Gigabit uplink slot. It accepts standard SFP modules — copper or fiber — for flexible connection back to a core switch or IDF. This is particularly useful when the unit is mounted at a distance that exceeds copper Ethernet's 100-meter limit.
Q: What input voltage does the NETWAY4E1BTWPX3 require?
A: The unit operates on 56VDC input. This elevated input voltage (relative to a standard 48V PoE system) provides the headroom needed to deliver full 802.3bt power levels to connected devices, particularly over longer cable runs.
Q: Is the NETWAY4E1BTWPX3 compatible with any IP camera brand?
A: The switch is compatible with any IEEE 802.3af, 802.3at, or 802.3bt PoE-powered device regardless of manufacturer. There is no proprietary PoE implementation — standard ONVIF-compatible cameras, access control readers, and wireless APs all connect without issue.
The NETWAY4E1BTWPX3 is one of the few edge switches I'd spec without hesitation into an exterior cabinet on a northern campus — the -30°C to 70°C operating window combined with a 360W 802.3bt power budget in a NEMA 4X/IP66 enclosure is a combination you don't see often at this port count. Most integrators shopping 4-port outdoor PoE are comparing against indoor switches stuffed in NEMA enclosures as an afterthought; this is purpose-built for the environment.
Technical Highlights:
- 90W Per Port (802.3bt): Full PoE++ on all four ports simultaneously — 360W aggregate budget means you can run four PTZ cameras drawing 60–75W each without throttling or port-priority workarounds.
- Integrated Battery Management (48VDC / 4×12VDC 4AH): Onboard SLA/gel battery support eliminates the need for a separate UPS module in a constrained exterior enclosure — a real space and cost factor when you're working inside a 16-inch wall cabinet at 20 feet.
- NEMA 4X + IP66 Dual Rating: NEMA 4X covers corrosive exposure (salt air, chemical washdown); IP66 covers high-pressure water ingress. Both ratings on the same enclosure is the spec to look for on coastal, industrial, or food-service perimeter deployments.
Deployment Considerations:
- Input is 56VDC — confirm your power source or Altronix power supply is configured for this rail before commissioning. Feeding a 48VDC supply into a 56VDC-rated switch will under-deliver on PoE headroom and may not light up 802.3bt-class devices at full wattage.
- Battery chemistry is restricted to SLA or gel type at 12VDC/4AH each — four in series. Lithium drop-in replacements are not specified for this platform; substituting them voids the design intent and may affect charging behavior.
This unit is the right call for perimeter PTZ deployments, parking structure edge cabinets, and industrial facility exterior runs — specifically where you need PoE++ power density, battery ride-through, and a housing that survives the same conditions as the cameras it's feeding.
