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The SGPAT10xx-105 is a 10/100/1000Base-T to 1000Base-SX/LX Gigabit Ethernet Media Converter, which easily and affordably facilitates the connection between different types of network cabling, while also injecting PoE+ power through the copper RJ-45 port.
Being a Power Sourcing Equipment (PSE) device, the SGPAT media converter combines data received over a fiber optic link with 56VDC input power to provide power and data to a Powered Device (PD) over twisted pair cabling while complying with the IEEE 802.3at PoE+ standard, which is also backwards compatible with the IEEE 802.3af PoE standard.
The converter is available in 2-port, 3-port, and 4-port versions and includes PD signature sensing and power monitoring features. Other features include over-current protection, under-current protection, and fault protection input. Active Link Pass Through (ALPT) is supported, which is an automatically activated version of Link Pass Through (LPT) that allows the converter to detect the loss of Receive (Rx) signals on either fiber or copper port and propagate the failure to the end devices, preventing the media converter from isolating those link failures. During a Link Pass Through event, the Auto Power Reset feature will re-set the power to the end PD device, ensuring it is ready to go when the LPT event is corrected.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 1 year
- Limited Warranty period (labor): 1 year
- Read full details
Return Policies
- Return for refund within: 15 days
- Return for replacement within: 15 days
- This item is covered by Newegg.com's 15-Day Return Policy.
- Read full return policy for details.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-260-1312
- Support Website
- View other products from Transition Networks
The Transition Networks SGPAT1039-105 is a Gigabit Ethernet PoE+ media converter that links 10/100/1000Base-T copper Ethernet with 1000Base-SX multimode fiber, making it suitable for network teams connecting compatible PoE+ devices to fiber-based infrastructure.
Recommended For
- Network installers extending a Gigabit Ethernet connection over existing 1000Base-SX multimode fiber, with LC connectors and a run within the model’s supported distance.
- Installers connecting a fiber backbone to a nearby PoE-powered device, such as a network endpoint, where the converter can deliver PoE+ over its copper port.
- Organizations adding a point-to-point fiber link to an existing Ethernet setup that need a standalone converter rather than a multiport switch.
- Facilities teams deploying a converter at a wall, on a DIN rail, or on a tabletop as part of a fixed network installation.
Real-World Use Scenarios
- When a network connection needs to cross an existing multimode-fiber run but the connected switch or device uses Ethernet over copper, this converter bridges the fiber and RJ-45 segments; the link must use compatible 1GbE SX optics and LC multimode fiber.
- To connect a single PoE-compatible endpoint—such as an IP camera or wireless access point—at the copper end of a fiber link, the converter can carry network data over fiber and supply PoE+ power over the RJ-45 cable, provided AC power is available at the converter and the endpoint’s power needs are supported.
- When extending a gigabit connection over multimode fiber between network areas, the SGPAT1039-105 can convert the fiber link back to copper for a nearby Ethernet device; the manual lists a maximum fiber distance of 220 m on 62.5/125 µm fiber or 550 m on 50/125 µm fiber.
- In a setup where loss of the fiber or copper link should be visible to connected network equipment, enabling Active Link Pass Through lets the converter propagate a detected link failure instead of leaving the other side appearing connected.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Connecting 10/100/1000Base-T Ethernet and 1000Base-X/SX/LX network links through RJ45 and SFP interfaces |
| Network Compatibility And Data Rate | Supports 10/100/1000Base-T, 1000Base-X, 1000Base-SX/LX, and data transfer rates up to 1 Gbps |
| Ports And Interfaces | 3 ports with RJ45 and SFP interfaces |
| Power And Package Contents | 56 V DC; includes a North American power cord |
| Construction | Plastic case |
| Model Identifiers | Transition Networks SGPAT1039-105 |








