Power over Ethernet, (PoE) or “Active Ethernet” is a technology that integrates both power and data over a standard Category 5 Ethernet cable Local Area Network (LAN) infrastructure
A Power over Ethernet system comprises of an Ethernet switch and a Power-Hub or a Power over Ethernet enabled Ethernet switch, which serves as the power source, and a number of Power over Ethernet enabled devices, which are the loads. The system uses a "Star Topology", where each load is connected to a dedicated port of the centralized Power-Hub. The Power-Hub is connected in series with an Ethernet Switch or Hub (cascaded), the Power-Hub inputs are connected to the Switch outputs, and the Power-Hub outputs are connected to the patch panel. Power is carried over the spare twisted pairs in a standard Category 5 Ethernet cable with negligible degradation of data communication.
Power over LAN
Power over LAN (PoL) is the name given to the implementation of Power over Ethernet by the company PowerDsine. Some 86% of the standard relates to PowerDsine technology.
The PowerDsine implementation of Power over Ethernet employs “mid-span” devices to inject the DC voltage. The “mid-span” device acts like a patch-panel, residing between a conventional Ethernet switch and the terminals. This is also referred to as a “Power Hub”. Power is added to the spare wires on the cable, with data uninterrupted.
The power delivered over the LAN infrastructure is automatically activated when a compatible terminal is identified and blocked to legacy devices that are not compatible. This is a central feature of the IEEE 802.3af standard which permits users to mix legacy and Power over Ethernet (PoE) compatible devices on the same network.
When a device is not compatible with Power over Ethernet an Active Splitter is installed. The splitter separates the DC voltage and the Ethernet data, into two separate outputs, terminating at a power port and a standard Ethernet connection (RJ-45 jack).
Axis Power over LAN
Axis Power over LAN (APoL) is the Axis implementation of Power over Ethernet by the company PowerDsine. Three Active Splitters are available, together with 1-port, 6-port and 12-port mid-spans. [see “Axis Power over LAN”].
Price
From £171.00
From £27.00
Features
The PowerDsine 3000 Series (3006/3012) is a cost-effective, mid-span implementation of IEEE 802.3af standard compliant PoE, providing a compact, safe and reliable power solution for small enterprises and low port density PoE installations.
The PowerDsine 3001 Series (3001/3001G) is a cost-effective, mid-span implementation of IEEE 802.3af standard compliant PoE, providing a minimum of 15.4 Watts of power.The 3001 supports 10/100 Mbps and the 3001G supports 10/100/1000 Mbps.
Number of Ports
6 and 12-port mid-spans
1-port mid-spans
Compliance
Full 802.3af
Full 802.3af
Mounting
Wall mountable or free standing
Wall mountable or free standing
Safe Detection algorithm
Yes
Yes
LED Status indications
Yes
Yes
Price
From £332.00
From £367.00
Features
The PowerDsine 3500 Series (3512/3524) is a cost-effective, mid-span implementation of IEEE 802.3af standard compliant PoE, providing a minimum of 15.4 Watts of power through each port and ensure safe operation of any standard PoE data terminal.
PowerDsine 6000 Series (6006/6012/6024) Power over Ethernet mid-span Hubs, provide power as well as data over Ethernet cabling. Incorporating IEEE 802.3af compliance, as well as PowerDsine’s unique legacy detection, the PowerDsine 6000 Series can provide power to virtually any Power over Ethernet ready device.
Number of Ports
12 and 24-port mid-spans
6, 12 and 24-port mid-spans
Compliance
Full 802.3af
Full 802.3af
Mounting
1U high, rack mountable
1U high, rack mountable
Safe Detection algorithm
Yes
Yes
LED Status indications
Yes
Yes
Price
From £363.00
From £334.00
Features
The PowerDsine 6000G Series (6006G/6012G/6024G) Power over Ethernet mid-span Hubs, provides safe power over standard Ethernet cabling by supporting both existing 10/100 baseT devices while ensuring support for future 1000 baseT devices. The series provides power for Gigabit Ethernet devices, such as IP-Telephones, wireless LAN access points and IP-Network Video Cameras and Video Servers in enterprise installations.
The PowerDsine 6500 Series (6006/6012/6024) Power over Ethernet mid-span Hubs, provides power as well as data over Ethernet cabling. Incorporating IEEE 802.3af compliance, as well as PowerDsine’s unique legacy detection, the PowerDsine 6500 Series can provide power to virtually any Power over Ethernet ready device. The PowerDsine 6500 Series includes 6-port, 12-port, 24-port and 48-port options.
Number of Ports
6, 12 and 24-port mid-spans
6, 12, 24 and 48-port mid-spans
Compliance
Full 802.3af
Full 802.3af
Mounting
1U high, rack mountable
1U high, rack mountable
Safe Detection algorithm
Yes
Yes
LED Status indications
Yes
Yes
Price
From £363.00
From £336.00
Features
The PowerDsine 7000G Series (7001G/7006G/7012G/7024G) is designed for High-Power (>13W) Ethernet-based end applications such as PTZ Cameras, 802.11n Access Points, Thin-Clients, WiMAX transceivers and Video Telephones. The PowerDsine 7000G Series includes 1-port, 6-port, 12-port and 24-port options
The PowerDsine 8000 Series (8001/8006/8012) High Power over Ethernet (HighPoE) mid-spans provide power up to a maximum of 39W per port, as well as data, over standard Ethernet cabling. The PowerDsine 8000 Series includes 1-port, 6-port and 12-port options
Number of Ports
1, 6, 12 and 24-port mid-spans
6, 12 and 24-port mid-spans
Compliance
Full 802.3af
Full 802.3af
Mounting
1U high, rack mountable
1U high, rack mountable
Safe Detection algorithm
Yes
Yes
LED Status indications
Yes
Yes
Price
From £27.00
£15.00
Features
A Power over Ethernet Active Splitter separates data and power coming over a network cable. It enables products which lack built-in support for Power over Ethernet to receive both power and data from a network connection.
The Power over Ethernet (PoE) Tester, connected to an RJ-45 outlet, tests the cabling infrastructure for the presence of power, either IEEE802.3af standard-compliant or pre-standard. The PoE Tester identifies the existence and type of Power Sourcing Equipment (either end-span or mid-span) in your network
