The Calix GigaSpire BLAST u4 (Model GS2028E, Part Number 100-05493) is a compact, high-performance Wi-Fi 6 smart home system designed to extend broadband services into residential environments. Here's a detailed overview of its functionality:

🧩 Core Functionality

• Wi-Fi 6 (802.11ax): Dual-band 2x2 MU-MIMO radios (2.4 GHz and 5 GHz) with dynamic beamforming for enhanced coverage, speed, and efficiency 
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• Gigabit Ethernet:
  • WAN Port: 1x RJ-45 Gigabit Ethernet for uplink.
  • LAN Ports: 2x RJ-45 Gigabit Ethernet for connecting wired devices 
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• Routing & Bridging:
  • Supports Layer 2 bridging and Layer 3 routing.
  • NAT, DHCP (IPoE), PPPoE, DNS, and configurable IP schemes
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• Smart Home Integration:
  • Acts as a hub for Calix Mesh systems (e.g., u4m satellites).
  • Supports mesh networking with self-healing and load balancing
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🔐 Security & Management

• Security Features:
  • WPA/WPA2/WPA3 encryption.
  • MAC filtering, DoS protection, parental controls, DMZ hosting
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• Remote Management:
  • TR-069 and Calix Support Cloud integration.
  • Local and remote GUI access.
  • Ookla-based speed testing via CommandIQ app 
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📦 Hardware Specs

• Dimensions: 5" x 5" x 1.6" (W x D x H), ~10.6 oz
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• Power: 12V DC via external adapter.
• USB Port: USB 2.0 Type-A for future expansion or diagnostics 
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• Client Support: Up to 200 wireless clients.
• Wi-Fi Features:
  • OFDMA, 1024-QAM, BSS Coloring, Target Wake Time (TWT) for IoT 
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🛠️ Installation & Deployment

• Mounting Options: Tabletop or wall-mounted.
• Setup: Easily activated via the Calix CommandIQ® app.
• Mesh Expansion: Compatible with GigaSpire Mesh BLAST u4m units for whole-home coverage