SG200-50P and PoE issues

[rdlcert]

Community,

I just purchased a SG200-50P switch to replace a WS-CE500-24LC, that had a limited amount (4) of PoE ports.  I was running Cisco 7940 IP Phone, Cisco AP1231 and AP1100 series access points via PoE off of this switch.

When I attempt to plug in these device types into the SG200-50P they do not power up.  What is going on?  Why do these devices (7940 IP Phone, 7960 IP Phone, AP1100 series access point, AP1231 series access point) not get PoE from the SG200-50P switch?

Is there a setting to enable these devices to receive PoE from the switch?

Thanks for your help.

[David Hornstein · Accepted solution]

Hi

The modern SGx00 series switches accept 802.3af compliant devices.

From a coursory look these devices, they  are pre-standard POE.  Check the Q&A URL below for answers regarding at least the phones.

But no where in the datasheet for the AP1231 can I see that the AP 1231 is 802.3af compliant.

There is a solution within the URL below, which is to choose a switch that can provide both pre-standard and compliant POE.

http://www.cisco.com/en/US/products/hw/phones/ps379/products_qanda_item09186a00808996f3.shtml?referring_site=smartnavRD

regards Dave