Ethernet Media Converter QOLTEC 52295 — 1x RJ45 to 1x SFP

QOLTEC 52295 is an Ethernet media converter that links a single RJ45 copper Ethernet port with a single SFP fiber slot. It enables the integration of copper and fiber segments within the same network, allowing longer-distance links and greater flexibility in connecting network devices that use different physical media. The compact unit is designed for use in environments such as small offices, surveillance systems, or localized industrial networks where a straightforward copper-to-fiber conversion is required.

Advantages

The media converter provides a simple physical conversion between 10/100/1000Base-T copper connections and SFP-based fiber modules without altering higher-layer network settings. It supports reliable signal transmission over fiber for extended reach and reduced electromagnetic interference compared with copper cabling. The device has a small footprint suitable for desktop or shelf mounting and allows use of different SFP modules to match required fiber type and distance. Installation requires minimal configuration and preserves existing network addressing and switching arrangements.

Suitable for

• Extending LAN segments over fiber between buildings or floors
• Connecting PoE switches or cameras (power provided separately) to fiber backbones
• Linking network equipment in surveillance and access control systems
• Bridging copper-based switches or routers to fiber uplinks in small office environments
• Integrating industrial or factory network islands with central fiber infrastructure

Key specifications

• Ports: 1 × RJ45 (copper) and 1 × SFP slot (fiber module sold separately)
• Supported speeds: Auto-negotiation for 10/100/1000 Mbps on RJ45
• Fiber compatibility: Depends on installed SFP module (multi-mode or single-mode)
• Link modes: Full duplex and half duplex as supported by connected devices
• LED indicators: Link/activity status for RJ45 and SFP ports
• Power: External DC adapter (check supplied adapter specifications)
• Form factor: Compact standalone unit for desktop or shelf placement

How to use

Install a compatible SFP module into the SFP slot according to the module manufacturer’s instructions. Connect the copper Ethernet device to the RJ45 port using appropriate Cat5e/Cat6 cabling, and connect the fiber cable to the installed SFP module. Apply power with the supplied DC adapter and observe the link/activity LEDs to verify connectivity. No additional configuration is required at the converter level; network settings remain controlled by connected switches, routers, or endpoint devices. Replace SFP modules if different fiber type or reach is needed.

Usage recommendations

Use SFP modules that match your fiber type (single-mode or multi-mode) and the required reach. Ensure cable quality and correct SFP transceiver specifications to maintain link stability. Install the converter in a ventilated, dry location away from extreme temperatures and strong electromagnetic sources. For applications involving PoE devices, keep power supply and PoE sourcing requirements in mind: the converter passes data only and does not inject PoE power.