3 Port 10/100M PoE Extender IEEE802.3af 802.3at Standard For Fast Ethernet Extension
| PoE ports: | 2*10/100M | Max port power: | 25 W |
| Buffer memory: | 512K | Forwarding rate: | 0,45 Mpps |
| Dimensions: | 104*50*29mm | MAC table: | 1k |
| Switching capacity: | 1.0Gbps | Uplink port: | 1 cavo RJ45 da 10/100 M |
| Port count: | 3 | PoE standard: | IEEE802.3AF/AT |
| High Light: | PoE Extender For Wireless APs,Industrial 3 Port PoE Extender,100M 3 Port PoE Extender |
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The ONV-PSE-PD3121S is a 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. This extender operates using power from the PoE switch, eliminating the need for an additional 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 recognizes compliant power-receiving equipment, supplying power through the network cable. It powers PoE terminal equipment such as wireless APs, webcams, VoIP phones, video access control systems, and more via network cables, meeting high-density PoE power supply requirements and enabling twisted pair PoE transmission up to 200 meters. Ideal for hotels, campuses, factory dormitories, and small-to-medium enterprises seeking cost-effective networking solutions. Unmanaged mode ensures plug-and-play operation with no configuration required.
| Model | ONV-PSE-PD3121S |
|---|---|
| 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) |
| 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 | Default 1/2 (+) 3/6 (-) |
| Max Power Per Port | 25W, IEEE802.3af/at (Limited by max input power of at) |
| Total PWR/ Input Voltage | 25W (PoE) |
| Power Consumption | Standby <2W, Full load <30W |
| Input Voltage and Interface | 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 (L×W×H) | 104×50×29mm |
| Net /Gross Weight | 0.15kg /0.2kg |
| Installation | Desktop, Wall-mounted |
| Certification & Warranty | |
| Lightning Protection | Port lightning protection: 4KV 8/20us, Protection level: IP30 |
| Certification | CE mark, commercial, CE/LVD EN62368-1, FCC Part 15, RoHS |
| Warranty | 1 year, lifelong maintenance |
Supports non-blocking wire-speed forwarding, full-duplex based on IEEE802.3x and half-duplex based on Backpressure. Three 10/100Base-TX RJ45 ports meet power supply and transmission requirements for scenes within 200 meters.
IEEE802.3af/at PoE standard compliant, safe for non-PoE devices. Two 10/100Base-TX RJ45 ports support PoE power supply for various security scenarios.
Extends network signal transmission distance and PoE power supply distance. Operates without external power supply, solving bandwidth and power network cable transmission within 200 meters.
CE, FCC, RoHS certified. Plug-and-play operation with no configuration required. User-friendly panel with LED indicators for PWR, Link, and PoE status. Low power consumption with advanced ABS and PC flame-retardant plastic shell.


| Model | Description |
|---|---|
| ONV-PSE-PD3121S | PoE extender with 2×10/100M PoE ports and 1×10/100M uplink PD RJ45 port. Port 1-2 support IEEE802.3af/at PoE standard. Extend data communication and power supply by 100 meters. (Plastic shell) |
| ONV-PSE-PD3321 | PoE extender with 2×10/100/1000M PoE ports and 1×10/100/1000M uplink PD RJ45 port. Port 1-2 support IEEE802.3af/at PoE standard. Extend data communication and power supply by 100 meters. (Plastic shell) |
| Packing List | Qty | Unit |
|---|---|---|
| 3-port 10/100M PoE extender | 1 | Set |
| User Guide | 1 | PC |
| Warranty Card and Certificate of Conformity | 1 | PC |
| Model | Description |
|---|---|
| ONV-PSE-PD3304 | PoE extender with 4×10/100/1000M PoE ports and 1×10/100M uplink PD RJ45 port. Port 1-4 support IEEE802.3af/at PoE standard. Extend data communication and power supply by 100 meters. (Plastic shell) |
| ONV-PSE-PD3102 | PoE extender with 2×10/100M PoE ports and 1×10/100M uplink PD RJ45 port. Port 1-2 support IEEE802.3af/at PoE standard. Extend data communication and power supply by 100 meters. (Metal shell) |
| ONV-PSE-PD3302 | PoE extender with 2×10/100/1000M PoE ports and 1×10/100/1000M uplink PD RJ45 port. Port 1-2 support IEEE802.3af/at PoE standard. Extend data communication and power supply by 100 meters. (Metal shell) |
