SZ; Reviewed:
WCH 3/19/2004
Solution & Interoperability Test Lab Application Notes
©2004 Avaya Inc. All Rights Reserved.
9 of 14
3com-PoE-Config.doc
For example, follow the steps above to change ports 1-3 to use the guaranteed profile.
Figure 7 shows all three ports are configured to use the Guaranteed profile. Note the power
limit is set to 15.4 watts for ports 1 and 2, and 7 watts for port 3, since both the 4620 and 4612
IP telephones are class 3 devices and the 4602SW IP phone is a class 1 device.
Table 2 shows the required power allocations defined by IEEE 802.3af-2003, based on the
class.
Class Usage Power
(Watts)
0 Default 15.4
1 optional 4
2 optional 7
3 optional 15.4
Table 2: IEEE 802.3af-2003 Power Classes
Figure 7: Port Inline Power Profile Configuration