Here are the detailed specs for the Netstar NS‑ER7‑E1‑V12‑OD2 Unmanaged Remote Powered Switch:

🚪 Ports & Power

• 7 × 10/100 Mbps Remote‑Powered (RPoE) downstream ports (data + power in)
• 1 × 10/100 Mbps uplink port (data only)
• 12 V DC output jack for powering an ONU/ONT downstream

🛠️ Key Technical Specs

• Standards: IEEE 802.3, 802.3u, 802.3x, 802.3az (Energy Efficient Ethernet)
• MAC table: 1K entries; packet buffer: ~448 Kb
• Max packet size: 1,536 bytes
• Throughput:
  • 100 Mbps ports → 148,800 pps
  • 10 Mbps ports → 14,880 pps

⚡ Power Management & Protection

• Powered remotely via 24 V DC PoE injector (0.75–1 A) — no rooftop UPS needed
• 2500 V surge protection on all ports
• Over-voltage protection (handles up to ~50 V DC, shuts down and auto-recovers removal)
• Per-port over-current protection via resettable fuses

🌡️ Physical & Environmental Specs

🔧 Networking Features

• Auto-negotiation (10/100 Mbps, half/full duplex) on all ports
• Non-blocking wire-speed switching
• Port-based isolation (hardware VLAN) — downstream ports are isolated from each other; uplink can talk to all
• Cascadable setup – supports daisy-chaining up to 3 additional switches

✅ Ideal Use Cases

• Perfect for ISP WISP deployments, enabling a single ONT/ONU to service multiple units
• Outdoor-ready design (optionally pole-mounted via weatherproof casing)
• Simplifies last‑mile power logistics: only one client PoE feed is needed to power the switch and ONU downstream

🔍 Summary – Quick Specs

• Model: NS‑ER7‑E1‑V12‑OD2
• LAN Ports: 7 × RPoE + 1 × uplink
• PoE IN: Remote-powered via 24 V DC
• PoE OUT: N/A (only 12 V DC jack for ONT)
• Protection: Surge, over-voltage, over-current
• Physical: 158 × 60 × 50 mm; 178 g; 0–50 °C operation
• Switching: Wire-speed; 1K MAC; 448 Kb buffer
• Extras: Port isolation, cascading, auto-negotiation