LT-ASG0821V  8+2+1 Port Gigabit Unmanaged PoE Switch

The LT-ASG0821V is an unmanaged PSE PoE switch from NEWBRIDGE® designed for small to medium surveillance and network applications requiring Gigabit speeds. It features 8× 10/100/1000Mbps Gigabit PoE ports (IEEE 802.3af/at, up to 30W per port), 2× 10/100/1000Mbps Gigabit uplink RJ45 ports, and 1× 1000Mbps SFP slot – all 11 ports work simultaneously.

With a total PoE budget of 120W, built-in intelligent PoE priority mechanism, watchdog on ports 1‑8 (auto‑restarts unresponsive devices after 2 minutes), OVP (Over Voltage Protection), short‑circuit protection, 4KV lightning protection on both ports and power supply, 250-meter long-range transmission (reduces ports 1‑8 to 10Mbps), and VLAN isolation mode (isolates ports 1‑8 from each other while keeping communication with uplink ports).

Housed in a fanless galvanized steel metal case, this plug-and-play switch is ideal for IP cameras, VoIP phones, and wireless APs in offices, hotels, and small business networks where Gigabit throughput and fiber uplink flexibility are required.

Key Features

🔌 Gigabit PoE+ with 120W Budget, Priority & Protections

• 8× Gigabit PoE ports – IEEE 802.3af/at compliant, up to 30W per port, total PoE budget 120W.

• Intelligent PoE priority mechanism – when remaining power is low, high‑priority ports are guaranteed power to prevent overload.

• OVP (Over Voltage Protection) – safeguards the switch and connected devices from voltage spikes.

• Short‑circuit protection built‑in for safe operation.

• 4KV lightning protection on both PoE ports and power supply.

🔁 Watchdog Auto-Recovery (Ports 1-8)

• Continuously monitors data communication status on all 8 PoE ports.

• If a connected camera or device stops working for 2 minutes, the corresponding port automatically restarts to restore operation – no manual intervention needed.

🌐 Gigabit Uplink & SFP Fiber Slot

• 2× 10/100/1000Mbps RJ45 uplink ports for high‑speed connection to NVRs or core switches.

• 1× 1000Mbps SFP slot – allows fiber uplink (multi‑mode or single‑mode, distance up to 100km depending on module), providing flexible long‑distance backbone connectivity.

📡 Long‑Range & VLAN Mode (DIP Switch)

• Long‑Range Mode: Reduces ports 1‑8 to 10Mbps, extending transmission distance up to 250 meters over standard Cat5e/6 cable.

• VLAN Mode: Isolates ports 1‑8 from each other (they only communicate with uplink ports 9‑10), reducing broadcast storms and preventing DHCP conflicts.

⚡ High‑Performance Switching

• 8× Gigabit PoE ports + 2× Gigabit uplink + 1× Gigabit SFP, all support non‑blocking wire‑speed forwarding.

• Switching capacity: 22Gbps; throughput: 16.368Mpps; MAC table: 2K; packet buffer: 1M.

• Supports IEEE 802.3x flow control and backpressure.

🔌 Plug‑and‑Play & Reliable Hardware

• No configuration required. LED indicators for power (PWR), link (Link), PoE status, and extend mode.

• Fanless silent design, galvanized steel metal shell, excellent heat dissipation.

• Operating temperature: 0℃～55℃; storage: -40℃～70℃.

Technical Specifications