LT-AS1621GEV16+2+1 Port Unmanaged PoE Switch
The LT-AS1621GEV is an unmanaged PSE PoE switch from NEWBRIDGE® designed for medium to large surveillance and network applications. It features 16× 10/100Mbps 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 250W, 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 IP cameras, VoIP phones, and wireless APs in larger deployments such as campuses, hotels, and enterprise networks where high PoE power and fiber uplink flexibility are required.
Key Features
🔌 High‑Power PoE+ with 300W Budget, Priority & Protections
IEEE 802.3af/at compliant (up to 30W per port), total PoE budget 250W – ample power for up to 16 devices.
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 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 1‑16 to 10Mbps, extending transmission distance up to 250 meters over standard Cat5e/6 cable – ideal for large‑area surveillance.
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× 10/100Mbps PoE ports + 2× Gigabit RJ45 uplink + 1× Gigabit SFP, all support non‑blocking wire‑speed forwarding.
Switching capacity: 9.2Gbps; throughput: 6.8448Mpps; 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
| Parameter | Specification |
|---|---|
| Model | LT-AS1621GEV |
| PoE Ports | 16× 10/100Mbps RJ45 (PoE) |
| Uplink Ports | 2× 10/100/1000Mbps RJ45 |
| SFP Slot | 1× 1000Mbps SFP (fiber) |
| PoE Standard | IEEE 802.3af/at (up to 30W per port) |
| Total PoE Budget | 250W |
| PoE Priority | Yes (intelligent priority mechanism) |
| Watchdog | Yes (ports 1‑16, auto‑restart after 2min failure) |
| PoE Pin Assignment | 1/2(+), 3/6(-) (4‑core power) |
| OVP | ✅ Supported |
| Short‑Circuit Protection | ✅ Supported |
| Lightning Protection | 4KV (ports & power) |
| Long‑Range Distance | Up to 250m (10Mbps mode on ports 1‑16) |
| VLAN Mode | Ports 1‑16 isolated, communicate with ports 17‑18 |
| Switching Capacity | 9.2Gbps |
| Throughput | 6.8448Mpps |
| MAC Table | 2K |
| Packet Buffer | 1M |
| Forwarding Mode | Store‑and‑forward (full wire speed) |
| Power Input | AC 110-240V, 50-60Hz (internal 300W) |
| Operating Temperature | 0°C ~ 55°C |
| Storage Temperature | -40°C ~ 70°C |
| Dimensions (L×W×H) | 310×183×45mm |
| Weight | 1.75kg |
| Housing | Galvanized steel, fanless |
| Installation | Desktop / Rack (optional) |