Talk:optiPoint power supply and PoE classes

Would be nice to add an overview table like this one:

The optiPoint IP workpoints can be powered using different methods as listed in the following table:

Workpoint power supply method	optiPoint 150	optiPoint 400	optiPoint 410	optiPoint 420	optiPoint 600	AP1120
AC/DC Power Supply unit	Yes	Yes	Yes	Yes	Yes	Yes
Pre-standard IEEE 802.3af mid span PoE injectors	Yes	Yes	Yes	Yes	Yes	No
IEEE 802.3af mid span (via unused pairs)	Yes	No	Yes	Yes	Yes	No
IEEE 802.3af end span (via used pairs)	Yes	No	Yes	Yes	No	No
Cisco Power over LAN (via used pairs)	Yes	No	Yes	Yes	Yes	No

AC/DC Power Supply unit

Each IP workpoint has its specific indoor AC/DC power adapter, that adapter is used to power the IP workpoint and is generally supplied with each IP workpoint as an accessory.

Power over Ethernet (PoE)

As shown in the table above there are four different methods to feed power to IP workpoint. Not all of these methods are supported on every workpoints (See, as examples, differences valid for optiPoint 150, optiPoint 400, optiPoint 600 and HiPath AP1120).

• Pre-Standard IEEE 802.3af mid span PoE injectors (known also as power hubs) using spare pairs wires of Ethernet cabling infrastructure.
• IEEE 802.3af Standard mid span (using spare pairs wires) as provided by the current PowerDsine hubs (as well as PowerDsine pre-standard)
• IEEE 802.3af Standard end span (using used pairs wires) as provided by all data vendors from their Ethernet switches (including Cisco)
• The Cisco pre-standard (used pair) inline power as installed in many older Ethernet switches.

Power over Ethernet Mid span (PoE injector), with 1,6,12 or 24 output ports, is connected in cascade to exisintg Ethernet Switch/Hub. As such, it is a scalable solution for upgrading a network to support Power over Ethernet