Changes between Version 15 and Version 16 of poe
- Timestamp:
- 10/02/2018 09:12:23 PM (6 years ago)
Legend:
- Unmodified
- Added
- Removed
- Modified
-
poe
v15 v16 2 2 3 3 = Power Over Ethernet (PoE) Notes = 4 PoE works by having a PoE capable injector or network switch. When the switch connects to a device, the switch tries to make a handshake with the device. The device has to have the signature to be able to do the handshake to activate PoE. Some Gateworks boards do not have this signature. If the signature is not detected, then power is not turned on. 4 5 5 PoE works by having a PoE switch. When the switch connects to a device, the switch tries to make a handshake with the device. The device has to have the signature to be able to do the handshake to activate PoE. Some Gateworks boards do not have this signature. If the signature is not detected, then power is not turned on. 6 PoE has evolved to define several different classes of power requirements: 7 * class 0 - (no signature) max device power of 12.95W 8 * class 1 - 4.0W available for max device power of 3.84W 9 * class 2 - 7.0W available for max device power of 6.49W 10 * class 3 - 15.4W available for max device power of 12.95W 11 * class 4 (PoE+) - 30W available for max device power of 25.5W 12 * class 5 (PoE++) - 45W available for max device power of 40W 13 6 14 7 15 ''' Please reference the user manual for the product to learn if it has POE capability at [http://www.gateworks.com/usermanuals] … … 13 21 References: 14 22 * http://en.wikipedia.org/wiki/Power_over_Ethernet 15 23 * http://www.veracityglobal.com/resources/articles-and-white-papers/poe-explained-part-2.aspx 16 24 17 25 [=#gateworks]
