Difference between revisions of "optiPoint 410/420 FAQ (general)"
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== Power over LAN == | == Power over LAN == | ||
| − | ==== My oP410/420 phone only supports power class 0 (default). How to setup the corresponding PoE-switch to reserve lower power? | + | ==== My oP410/420 phone only supports power class 0 (default). How to setup the corresponding PoE-switch to reserve lower power? ==== |
: Some models of the first oP410/420 phones do not support power negotiation according IEEE 802.3 af. For details refer to [[PoE classes of optiPoint phones]]. To avoid that the Lan-switch reserves to much | : Some models of the first oP410/420 phones do not support power negotiation according IEEE 802.3 af. For details refer to [[PoE classes of optiPoint phones]]. To avoid that the Lan-switch reserves to much | ||
| + | |||
| + | [http://www.cisco.com/en/US/products/hw/switches/ps5528/prod_release_note09186a00804cc85f.html|Settings for Cisco 3750, 3560, 2970 LAN switches] | ||
==== Can I run an optiPoint 410/420 with local '''and''' PoE power supply= ==== | ==== Can I run an optiPoint 410/420 with local '''and''' PoE power supply= ==== | ||
| − | : This is not recommended, although the phone will not break. | + | : This is not recommended, although the phone will not break. Power class negotiation will not run properly, because the standard required a power-less state for the negotiation (no local power supply). Thus in this case the class will be set to 0 (default). <br/> |
| + | If the power negotiation is done first and then the local power supply is connected, the initial negotiated power class will not be changed. | ||
Revision as of 11:59, 16 January 2007
Power over LAN
My oP410/420 phone only supports power class 0 (default). How to setup the corresponding PoE-switch to reserve lower power?
- Some models of the first oP410/420 phones do not support power negotiation according IEEE 802.3 af. For details refer to PoE classes of optiPoint phones. To avoid that the Lan-switch reserves to much
for Cisco 3750, 3560, 2970 LAN switches
Can I run an optiPoint 410/420 with local and PoE power supply=
- This is not recommended, although the phone will not break. Power class negotiation will not run properly, because the standard required a power-less state for the negotiation (no local power supply). Thus in this case the class will be set to 0 (default).
If the power negotiation is done first and then the local power supply is connected, the initial negotiated power class will not be changed.
