LT-ASG1621V 16+2+1 Port Gigabit Unmanaged PoE Switch

The LT-ASG1621V is an unmanaged PSE PoE switch from NEWBRIDGE® designed for medium to large surveillance and enterprise network applications requiring high‑power Gigabit PoE and flexible uplinks. It features 16× 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 19 ports work simultaneously.

With a total PoE budget of 300W, built‑in intelligent PoE priority mechanism, watchdog on ports 1‑16 (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 1‑16 to 10Mbps), and VLAN isolation mode (isolates ports 1‑16 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 large-scale IP surveillance, Wi-Fi AP deployments, campus networks, hotels, and industrial environments where high port density, Gigabit throughput, and a 300W PoE budget are required.

Key Features

🔌 High-Power Gigabit PoE+ with 300W Budget, Priority & Protections

• 16× Gigabit PoE ports – IEEE 802.3af/at compliant, up to 30W per port, total PoE budget 300W – ample for up to 16 cameras/APs.

• 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 1‑16)

• Continuously monitors data communication status on all 16 PoE ports.

• If a connected camera or device stops working for 2 minutes, the corresponding port automatically restarts to restore operation – no manual maintenance 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 1‑16 to 10Mbps, extending transmission distance up to 250 meters over standard Cat5e/6 cable.

• VLAN Mode: Isolates ports 1‑16 from each other (they only communicate with uplink ports 17‑18), reducing broadcast storms and preventing DHCP conflicts.

⚡ High‑Performance Switching

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

• Switching capacity: 38Gbps; throughput: 28.272Mpps; MAC table: 8K; packet buffer: 2M.

• Supports IEEE 802.3x flow control and backpressure.

• 8‑core PoE power supply (pins 1,2,3,6 + and 4,5,7,8 -) for stable power delivery.

🔌 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