Dahua Ethernet Over Coax Extender Transmitter
The Dahua LR10021ET is a single-port Ethernet over coax transmitter designed to send Ethernet data and Power over Ethernet over existing RG59 coaxial cable. It is typically installed at the network switch or Network Video Recorder end of the run and pairs with a Dahua Ethernet over coax receiver at the device end.
Key Features
- Transmits Ethernet data and power over RG59 coaxial cable.
- Supports transmission distances up to 400 m at 100 Mbps and 1000 m at 10 Mbps.
- Supports Power over Ethernet in accordance with IEEE 802.3af and IEEE 802.3at.
- Automatic Medium Dependent Interface and Medium Dependent Interface Crossover (MDI/MDIX) adaptation.
- Designed for use with Dahua Ethernet over coax receivers as part of a matched system.
Specifications
- Item Code: LR10021ET
- Manufacturer Model: LR1002-1ET
- Function: Ethernet over coax transmitter
- Network Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3x
- PoE Standards: IEEE 802.3af, IEEE 802.3at
- Ports: 1 × RJ45 (10/100 Mbps), 1 × BNC
- Transmission Medium: RG59 coaxial cable
- Transmission Performance: 400 m at 100 Mbps, 1000 m at 10 Mbps
- Power Consumption: Less than 2 W
- Lightning Protection: Common mode 4 kV, differential mode 2 kV
- Operating Temperature: -30 °C to +65 °C
- Operating Humidity: 5% to 95% relative humidity
- Finish: White
- Weight: 61 g
Dimensions
Suitable Uses
- Connecting network switches or Network Video Recorders to cameras over existing coaxial cabling.
- Ethernet over coax deployments in car parks, warehouses, and perimeter installations.
- Upgrade projects where replacing coaxial cable with new Ethernet cabling is impractical.
Dahua Ethernet Over Coax – Item Code Family
Frequently Asked Questions
- Can this be used on its own?
No. This transmitter must be paired with a compatible Dahua Ethernet over coax receiver to create a complete Ethernet link. - Does this support Power over Ethernet cameras?
Yes. When used with a compatible receiver and power source, it supports Power over Ethernet in accordance with IEEE 802.3af and IEEE 802.3at. - What cable type is required for rated distances?
Performance figures are specified for RG59 coaxial cable. Other cable types may reduce achievable distance and power delivery.
Additional Information
- This transmitter is normally installed at the network infrastructure end, with the receiver mounted near the camera.
- As cable length increases, available PoE power decreases. Always confirm camera power requirements against distance limits.
- Coax condition is critical. Old or high-resistance RG59 cable can significantly reduce bandwidth and power delivery.
