Ubiquiti UA-G2-SK G2 Starter Kit PoE Intercom
Overview
The Ubiquiti UA-G2-SK (often searched as UA G2 SK) is a compact, PoE-powered intercom designed for enterprise and infrastructure deployments where NDAA compliance and environmental durability matter. At just 85.6 x 53.98 x 0.84 mm and weighing 5 grams, the unit fits tight spaces without sacrificing ruggedness. Across the broader Ubiquiti product line, this intercom sits in the small-footprint, outdoor-capable category—ideal for distributed sensor and access-control networks that demand reliable network connectivity without dedicated power runs.
Key Features
- Single 10/100 Mbps RJ45 Port: Wired Ethernet connectivity integrates directly into your existing backbone. This is baseline performance, but sufficient for intercom signaling and low-bandwidth access-control data; you won't saturate this link even with multiple units.
- PoE Power (48V DC, 5W maximum): Draws only 5 watts at 48V DC, leaving substantial headroom on standard 802.3af PoE switches (which deliver up to 15.4W per port). No separate power supply needed, and cable runs can extend the full Ethernet specification distance without voltage drop concerns—a real cost savings on installation labor.
- IP55 Environmental Rating: Protection against dust ingress and low-pressure water jets means roof, pole, and perimeter mounting won't expose bare connectors. Skip this if you need submersion (IP67+); otherwise, IP55 handles rain, dust storms, and harsh outdoor conditions.
- Wide Operating Temperature Range (-30° to 45°C / -22° to 113°F): Covers cold warehouses, outdoor loading docks, and tropical climates without thermal derating or shutdowns. This eliminates seasonal reliability headaches common in extreme-temperature sites.
- Polycarbonate and Glass Enclosure with Aluminum Alloy Mount: Lightweight polymer + metal construction balances durability against weight. The aluminum mount accommodates standard DIN rail and pole installations, reducing custom fabrication cost.
- ESD Protection (±15kV air, ±8kV contact): Critical for outdoor and industrial environments where static discharge can corrupt logic or damage sensors. This built-in safeguard eliminates the need for external surge suppressors in most deployments.
- NDAA Section 889 Compliance: Removes procurement hurdles for U.S. federal, defense, and government-adjacent projects. No supply-chain vetting delays.
- Comprehensive Certifications (CE, FCC, IC, UL 294, CAN/ULC-60839-11-1): North American and European regulatory approval means no rework or re-certification required if you're expanding into new markets.
Integration and Compatibility
The UA-G2-SK integrates into any Ethernet switch or PoE injector infrastructure. Standard 10/100 Mbps performance is sufficient for intercom signaling, access-control data, and lightweight sensor telemetry. If you're standardizing on Ubiquiti ecosystem deployments, this unit benefits from integrated management compatibility and simplified spares logistics. The low power draw ensures minimal thermal load—no active cooling required even in enclosed outdoor cabinets.
Deployment Considerations
Verify that your PoE switch has sufficient power budget for the number of units you plan to deploy (5W per unit is minimal, but backhaul bandwidth and device count still matter). Confirm cable run distances comply with standard Ethernet specifications (up to 100 meters for 10/100 Mbps). In electrically noisy environments (heavy motor loads, arc welders), consider grounding the aluminum mount and running shielded Ethernet if available.
When to Choose a Different Model
If you need gigabit bandwidth for video streaming or large data transfers, consider a higher-speed variant in the Ubiquiti catalog. If your deployment requires sealed submersion or IP67+ rating, look for a purpose-built enclosure or select a different form factor. For indoor-only intercom applications without environmental stress, a simpler, non-rated unit may reduce cost without sacrificing reliability.
Frequently Asked Questions
Q: Is the UA-G2-SK NDAA Section 889 compliant?
A: Yes. NDAA compliance eliminates supply-chain procurement barriers for U.S. federal and defense-adjacent projects.
Q: What is the maximum PoE power draw of the UA-G2-SK?
A: 5W at 48V DC. This leaves ample headroom on standard 802.3af PoE switches (15.4W per port), so multiple units can be deployed on a single switch without power oversubscription.
Q: Can I install the UA-G2-SK outdoors?
A: Yes. The IP55 rating protects against dust and water ingress, and the -30° to 45°C operating range supports outdoor deployment in most climates. Do not submerge; IP55 is water-jet resistant, not submersion-rated.
Q: Does the UA-G2-SK require a separate power supply?
A: No. PoE power delivery via the RJ45 connection eliminates the need for a dedicated power run, reducing installation cost and complexity.
Q: What certifications does the UA-G2-SK hold?
A: CE, FCC, IC, UL 294, and CAN/ULC-60839-11-1. These cover North American and European regulatory frameworks.
Q: Can I mount the UA-G2-SK on a DIN rail or pole?
A: Yes. The aluminum alloy mount accommodates both standard DIN rail and pole-mount applications.
Eden PhillipsPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The UA-G2-SK is a practical anchor for infrastructure teams managing federal compliance and outdoor distributed networks. At 5W maximum draw on 48V PoE, this intercom sits well within budget on any enterprise switch, and the NDAA compliance flag eliminates a major procurement hurdle that slows federal and defense-adjacent projects. The polycarbonate-and-aluminum design is genuinely durable without overweight, and the -30° to 45°C operating range means you deploy once and forget seasonal issues.
Technical Highlights:
- 5W PoE Power Draw: Minimal consumption leaves 10+ W headroom per port on standard 802.3af switches. Deploy 15+ units per switch without power negotiation or oversubscription risk.
- IP55 Rating + -30° to 45°C Range: Dust and water ingress protection combined with extreme-temperature tolerance eliminates environmental derating headaches. You install once and don't revisit seasonal shutdowns or cooling requirements.
- NDAA Compliance + Multi-Standard Certification (CE, FCC, IC, UL 294): Removes procurement review delays and eliminates rework for cross-border deployments. A real time-to-deployment win on federal and government-adjacent projects.
Deployment Considerations:
- 10/100 Mbps Ethernet is sufficient for intercom signaling and low-bandwidth access control, but verify your backbone bandwidth if you're aggregating dozens of these units through a single uplink.
- IP55 handles water jets and dust storms but is not submersion-rated—mount it above standing-water lines and confirm no permanent pooling during heavy rain.
Position the UA-G2-SK in federal compliance networks where NDAA vetting and outdoor durability are non-negotiable. For warehouse automation integrators building distributed sensor and access-control grids, this unit's minimal power footprint and certification compliance make it a reliable anchor point that won't force a redesign down the line.
