LT-AHG0822HV Gigabit Hi-PoE++ Switch – Product Overview

The LT-AHG0822HV is a high‑performance hybrid PoE switch designed for surveillance, wireless networks, and commercial PoE deployments. It features 8 PoE ports (ports 1–2 support IEEE 802.3af/at/bt up to 90W each, ports 3–8 support 30W each), 2 Gigabit uplink RJ45 ports, and 2 Gigabit SFP slots – all 12 ports work simultaneously. With a total PoE budget of 150W, built‑in watchdog on ports 1–8, 250‑meter long‑range transmission, VLAN isolation, 6KV surge protection, OVP, and short‑circuit protection, this unmanaged switch delivers reliable, maintenance‑free operation for IP cameras, VoIP phones, wireless APs, and more.

Key Features

🔌 Intelligent PoE with Priority Management

• Automatically detects IEEE 802.3af/at/bt PoE devices – safe for non‑PoE equipment.

• Smart power priority mechanism ensures high‑priority ports keep running when total power is low, preventing overload.

• Ports 1–2 support PoE++ (90W) for high‑power devices like PTZ cameras, lighting, or Wi‑Fi 6 APs.

🔁 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.

📡 250m 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 – perfect for large sites or aging cable lines.

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

🛡️ Comprehensive Protection: 6KV Surge + OVP + Short‑Circuit

• 6KV lightning protection on both PoE ports and power supply – resilient against surges.

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

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

• Fanless silent design, galvanized steel housing, and low power consumption for reliable 24/7 use.

⚡ High‑Performance Switching

• 24Gbps switching capacity, 17.856Mpps throughput, and 2Mbit packet buffer.

• All ports support non‑blocking wire‑speed forwarding (10/100/1000Mbps).

• Store‑and‑forward architecture with full/half‑duplex flow control.

🔌 Flexible Connectivity & Easy Deployment

• 8× 10/100/1000Base‑T PoE ports + 2× Gigabit uplink RJ45 + 2× Gigabit SFP slots (fiber uplink up to 100km depending on module).

• Plug and play – no configuration required. LED indicators for power (PWR), link (Link), PoE status, and extend mode.
  

• Technical Specifications

  Parameter	Specification
  PoE Ports	8 × 10/100/1000Mbps (Ports 1–2: 90W bt; Ports 3–8: 30W af/at)
  Uplink Ports	2 × Gigabit RJ45
  SFP Slots	2 × Gigabit SFP
  Total PoE Budget	150W
  PoE Standard	IEEE 802.3af/at/bt
  Watchdog	Ports 1–8 (auto‑restart after 2min failure)
  Long‑Range Distance	Up to 250m (10Mbps mode)
  Surge Protection	6KV (ports & power)
  OVP (Over Voltage Protection)	✅ Supported
  Short‑Circuit Protection	✅ Supported
  Switching Capacity	24Gbps
  Throughput	17.856Mpps
  MAC Table	4K
  Operating Temperature	0°C to 55°C