Preparing for power requirements of the switch 45The Nortel Ethernet Power Supply 10 is a DC power supply used with theAC power supply to provide DTE power to all of the PoE ports.Output Current 4.2 A maximumOutput Voltage -48 VDCOutput Power 200 W maximumNortel Ethernet Redundant Power Supply 15This module describes the Nortel Ethernet Redundant Power Supply 15(RPS 15).The RPS 15 is a DC power supply used with the AC power supply toprovide DTE power to all of the PoE ports in the Nortel Ethernet RoutingSwitch 5520.Input Voltage 100 to 240 VAC 50/60 HzInput Current 10A maximumInrush Current: 40A maximum (regardless of ambienttemperature)Output Voltage 47.5 VDCOutput Current 12.0 AOutput Power 600 WNortel Ethernet DC-DC converter moduleThis module describes the Nortel Ethernet DC-DC converter module.The Nortel Ethernet Routing Switch 5510 requires an additional DC-DCconverter module to use the RPS 15. This module connects the RPS 15to the ERS 5510 but is not required for other switches in the 5500 Series.For information on connecting this module to the ERS 5510, see DC-DCConverter Module for the Baystack 5000 Series Switch, 215081-A.Internal power source only optionThis module describes the internal power source only option.Using the Nortel Ethernet Routing Switch 5520-PWR switch and its internalpower source only option, you have a total of 320 watts of available power.You can power up to 48 ports at 6.6 W for each port with this configurationor 20 ports at the maximum power of 15.4 W for each port.External power source only optionThis module describes the external power source only option.ERS 5000 Series InstallationNN47200-300 04.0313 April 2009Copyright © 2008–2009 Nortel Networks