3-port 10/100M PoE Extender
Overview
The ONV-PSE-PD3121L is a 10/100M PoE extender featuring 2×10/100M PoE ports and 1×10/100M uplink PD RJ45 port. Ports 1-2 support IEEE802.3af/at PoE standards with single-port PoE power up to 25W. The extender operates using power from the PoE switch, eliminating the need for an external power supply. Installed at the end of a 100-meter network cable, it extends both network connectivity and PoE power supply by an additional 100 meters at full speed.
As a PoE power supply device, it automatically detects and powers compatible receiving equipment through the network cable. It is ideal for powering PoE terminal devices such as wireless APs, webcams, VoIP phones, video access control systems, and more. This solution addresses high-density PoE power supply requirements and extends twisted-pair PoE transmission up to 200 meters. Suitable for hotels, campuses, factory dormitories, and small-to-medium enterprises seeking cost-effective networking solutions. Plug-and-play operation requires no configuration.
Technical Specifications
Interface Characteristics
| Fixed Port |
2×10/100Base-TX PoE ports (Data/Power)
1×10/100Base-TX uplink PD RJ45 port (Data/Power) |
| Ethernet Port |
Port 1-3 support 10/100Base-TX auto-sensing, full/half duplex MDI/MDI-X self-adaption |
| Twisted Pair Transmission |
10BASE-T: Cat3,4,5 UTP (≤100 meters)
100BASE-TX: Cat5 or later UTP (≤100 meters) |
| Function Switch |
Two working modes: 100m and 250m
100m: Works in standard 100M/100m mode
250m: Works in long-distance 10M/250m mode |
Chip Parameter
| Network Protocol |
IEEE802.3 10BASE-T, IEEE802.3i 10Base-T, IEEE802.3u 100Base-TX, IEEE802.3x |
| Forwarding Mode |
Store and forward (Full wire speed) |
| Switching Capacity |
1.0Gbps (non-blocking) |
| Forwarding Rate@64byte |
0.45Mpps |
| MAC |
1K |
| Buffer Memory |
512K |
| Jumbo Frame |
1536byte |
| LED Indicator |
Power: PWR (Green), Data: Link (Yellow), POE: PoE (Green) |
PoE & Power Supply
| PoE Port |
Port 2-3, IEEE802.3af/at |
| Power Supply Pin |
1/2 (+) 3/6 (-) |
| Max Power Per Port |
25W, IEEE802.3af/at (Limited by max input power of at) |
| Total PWR/ Input Voltage |
25W/(DC48-57V) |
| Power Consumption |
Standby <2W, full load <30W |
| Input Voltage and Interface |
48-57V PoE (IEEE802.3af/at), RJ45 port connection |
Physical Parameter
| Operation TEMP/ Humidity |
-20~+55°C, 5%~90% RH non-condensing |
| Storage TEMP/ Humidity |
-40~+80°C, 5%~95% RH non-condensing |
| Dimension |
104×50×29mm |
| Net/Gross Weight |
0.15kg/0.2kg |
| Installation |
Desktop, Wall-mounted |
Certification & Warranty
| Lightning Protection |
4KV 8/20us, Protection level: IP30 |
| Certification |
CE mark, commercial, CE/LVD EN62368-1, FCC Part 15, RoHS |
| Warranty |
2 years, lifelong maintenance |
Features
10/100M Fast Ethernet, Uplink PD RJ45 Port
- Support non-blocking wire-speed forwarding.
- Support full-duplex based on IEEE802.3x and half-duplex based on Backpressure.
- 3×10/100Base-TX RJ45 ports to meet power supply and transmission requirements within 200 meters
Intelligent PoE Power Supply
- IEEE802.3af/at PoE standard, without damaging non-PoE devices
- 2×10/100Base-TX RJ45 ports support PoE power supply for various security scenarios
Innovative Function
- Extends network signal transmission distance and PoE power supply distance
- No external power supply required, solving bandwidth and power issues for network cable transmission within 200 meters
- Selectable 100M/100m standard transmission and 10M/250m long-distance working modes
Stable and Reliable
- CE, FCC, RoHS certified
- Plug and play, no configuration required
- User-friendly panel with LED indicators for PWR, Link, and PoE status
- Low power consumption, fanless, silent design
- Advanced ABS and PC flame-retardant plastic shell
Dimension
![3-port 10/100M PoE Extender dimension diagram showing product measurements]()
Application
![Application diagram showing 3-port 10/100M PoE Extender deployment in network infrastructure]()
Ordering Information
| Model |
Description |
| ONV-PSE-PD3121L |
PoE extender with 2×10/100M PoE ports and 1×10/100M uplink PD RJ45 port. Port 1-2 supports the IEEE802.3af/at PoE standard. Extend data communication and power supply by 100 meters. (Plastic shell) |
Packing List
| Packing List |
Qty |
Unit |
| 3-port 10/100M PoE extender |
1 |
Set |
| User Guide |
1 |
PC |
| Warranty Card and Certificate of Conformity |
1 |
PC |
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