E-link PoE Switche

The E-link LNK-INJ301-30 is an industrial gigabit high-power PoE+ injector that enables IEEE 802.3af/at PoE devices—such as IP cameras and wireless access points—to connect to a non-PoE LAN switch at distances up to 100 m. It features a 12–48 VDC input, an operating temperature range of -40°C to 80°C, and DIN-rail/wall-mount installation, making it suitable for security surveillance, wireless access, and IP telephony applications.

Overview

The LNK-INJ301-30 is a hardened gigabit high-power PoE+ injector. As IEEE 802.3at PoE+ power sourcing equipment (PSE), it connects IEEE 802.3af/at powered devices—such as cameras and access points—to a non-PoE LAN switch at distances up to 100 m. Both the Ethernet port and the PoE output port support 10/100/1000Base-T, and the PoE output port complies with IEEE 802.3at. The product provides an integrated power solution with a wide 12–48 VDC input for high-availability applications.

Key Advantages

• Wide-voltage input for diverse power environments
  Supports 12–48 VDC terminal-block input with 36 W maximum power consumption, providing an integrated power solution for high-availability applications and flexible deployment under different on-site power conditions.

• Integrated gigabit data and PoE+ power
  One RJ45 Ethernet data input port and one RJ45 PoE output port (data + power); supports 10/100/1000Base-T; compliant with IEEE 802.3af/at PoE; up to 30 W per port (Alternative B mode, pins 4/5 positive and 7/8 negative), capable of powering high-power PoE devices directly.

• Industrial-grade reliability for harsh environments
  Operating temperature from -40°C to 80°C and storage temperature from -40°C to 85°C; aluminum alloy case; DIN-rail and wall-mount installation; Power and PoE LED indicators for on-site PoE diagnostics; RJ45 surge protection at 1 kV, power surge protection at 500 V, and ESD protection at 4 kV/8 kV; MTBF greater than 200,000 hours for long-term stable operation.

• Compact and flexible deployment
  95 × 70 × 30 mm and 0.25 kg; DIN-rail bracket installed by default, with wall-mount bracket included for installation flexibility; power supply sold separately for configuration on demand.

Typical Applications

Suitable for CCTV security transmission, wireless APs, IP phones, and PoE IP cameras. The LNK-INJ301-30 delivers both data and power between a non-PoE switch and remote PoE devices, simplifying cabling and extending PoE device deployment.

Key Specifications at a Glance

Compliant with IEEE 802.3af/at PoE; supports 10/100/1000Base-T; 2 × RJ45 connectors (1 Ethernet data input, 1 PoE output); Cat5 or above cabling up to 100 m; 12–48 VDC terminal-block input; 36 W maximum power consumption; up to 30 W per port (Alternative B mode); operating temperature -40°C to 80°C; aluminum alloy case; DIN-rail/wall-mount installation; ISO9001, FCC Part 15 Class A, and EN55022:2006+A1:2007 Class A approvals.

Ordering Information

Model LNK-INJ301-30, 12–48 VDC power input industrial gigabit PoE+ injector. DIN-rail bracket installed by default; wall-mount bracket included; power supply sold separately.

For more information, please contact E-link.