Digimerge DNS1010 Lower Costs, More Flexible, Centralize vs Localize Power Source, Manageability

Digimerge IP Devices are certified for use with Microsemi PoE hardware solutions. Visit www.microsemi. com/PowerDsine for details on all available PoE hardware solutions.

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DNS1010_Quick Installation Guide_En_R1 Page 14

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Power OVER ETHERNET (PoE)

Power over Ethernet, also known as PoE, is a technology for carrying power along with data on standard CAT5 network cables, allowing devices to be powered via their network ports. It is sup- ported by some devices directly (i.g. 802.3af compliant or “PoE Enabled” devices) while other devices require PoE accessories, such as PoE Endspans, PoE Midspans, power injectors and/or active splitters, in order to make use of the technology.

Power is injected on the Ethernet Cable Data Pairs using:

•PoE Endspan – PoE enabled Ethernet switch

•PoE Midspan - PoE multi port injector for use with non-PoE Ethernet switches

•PoE Injectors – Adapter that injects Power into an Ethernet cable. Can be used in combination with an active splitter (for connecting to non- PoE devices) or used on its own (for connecting to PoE enabled devices)

•Active Splitter – An adapter that splits the Date and Power transmissions over a single Ethernet cable (PoE) into a separate Date (using RJ45 connector) and power stream (using power barrel connector) for use strictly with non-PoE devices.

Note that PoE allows devices to be powered with a power rating of up to 12.9W. Devices that consume more then 12.9W but less than 39W require use of High Power PoE (IEEE-802.3at) devices. High Power PoE devices like the 8000 series from Microsemi are readily available. An example of an IP camera that would require High Power PoE to power it up would be PTZ Speed Dome cameras which consume a lot of power.

A detailed description of the 802.3af standard is available in IEEE publication SS95312

(http://standards.ieee.org/getieee802/download/ 802.3af-2003.pdf).

The main benefits of PoE technology are as follows:

Lower Costs

•Eliminate the need to run A/C power wires

•Utilize existing IT infrastructure investments

More Flexible

•Locate device where it truly needs to be located (Not constrained by the location of an AC outlet)

Centralize vs Localize Power Source

•Allow use of a centralized UPS (Uninterruptible power supply) to guarantee power to the device even during a power failure

Manageability

•PoE devices that are Simple Network Management Protocol (SNMP) manageable can be remotely monitored and controlled

The main benefits of PoE Midspan use over PoE Endspan use are:

•Improve ROI on current installations

•Minimize capital expenditure

-Keep the existing Switches

•Lower purchase price

-30% less than Enterprise PoE switch

•Easy and simple to install

-Lower installation costs - 20% less than Enterprise PoE switch

-Enable higher productivity - Negligible downtime

•PoE investment is protected

-Switch technology changes

-Why pay for PoE every time you upgrade your switch?

•Gain flexibility to power also pre-standard terminals

Examples of PoE installations using…

PoE Endspan

Endspan IP camera (PoE enabled)

EndspanActive SplitterIP Camera (non-PoE)

PoE Midspan

Non-PoE Ethernet SwitchMidspanIP Camera (PoE enabled)

Non-PoE Ethernet SwitchMidspanActive Splitter IP Camera (non-PoE)

PoE Injector

Non-PoE Ethernet SwitchPoE InjectorIP Camera (PoE enabled)

Poe Injector + Splitter

Non-PoE Ethernet SwitchPoE InjectorActive Splitter IP Camera (non-PoE)