156 Power over EthernetMessages"Error messages displayed by PoE ports" (page 156) describes the errormessages displayed by a port that supports PoE.Error messages displayed by PoE portsError Message DescriptionsDetecting The port detects an IP device that is requestingpower.Delivering power The port delivers the requested power to theIP device.Disabled The port power state is disabled.Invalid PD The port detects a device that is not authorizedto request for power.Deny low priority Power is disabled from the port because ofport setting and demands on power budget.Overload Power is disabled from the port because theport is overloaded.Test The port is in testing mode. This was set byusing SNMP.Error An unspecified error condition occurred.Connecting the PSUPerform the following steps in the order specified to connect the PSU to theNortel Ethernet Routing Switch 4548GT-PWR or the 4550T-PWR.Step Action1 Plug the external power source into the DC connector receptacle onthe back of the switch by using the 2-pin power connector and the10-pin control connector.2 Attach the ground lug on a cable to a grounding point.3 Plug the power cord from the Nortel Ethernet RPS 15 into the walloutlet.4 Plug the power cord from switch into the wall outlet.—End—The following figure illustrates three Nortel Ethernet RPS 15s connected tothe back of a stack of three Nortel Ethernet Routing Switch 4548GT-PWRswitches.Nortel Ethernet Routing Switch 4500 SeriesOverview — System ConfigurationNN47205-500 02.01 Standard5.0 23 February 2007Copyright © 2007, Nortel Networks Nortel Networks Confidential.
