42 | Specificationsw w w . d e l l . c o m | s u p p o r t . d e l l . c o m DC Power RequirementsIEEE StandardsThe Z9000 complies with the following IEEE standards:• 802.3ae 10 Gigabit Ethernet• 802.3ab 1000Base-T• 802.1p L2 Prioritization• 802.1Q VLAN Tagging, Double VLAN Tagging (Q in Q), GVRP• 802.1s Multiple Spanning Tree Protocol• 802.1w Rapid Spanning Tree Protocol• 802.3ad Link Aggregation with LACP• 802.1D Bridging, STP• 802.3x Flow Control• 802.1ac Frame Extension for VLAN Tagging• 802.1x Port Based Network Access ControlAgency ComplianceThe Z9000 is designed to comply with the following safety and agency requirements.USA Federal Communications Commission (FCC) StatementThis equipment has been tested and found to comply with the limits for a Class A digital device, pursuantto Part 15 of the FCC rules. These limits are designated to provide reasonable protection against harmfulinterference when the equipment is operated in a commercial environment. This equipment generates,uses, and can radiate radio frequency energy. If it is not installed and used in accordance to theinstructions, it may cause harmful interference to radio communications. Operation of this equipment in aresidential area is likely to cause harmful interference, in which case users will be required to takewhatever measures necessary to correct the interference at their own expense.Properly shielded and grounded cables and connectors must be used in order to meet FCC emissionlimits. Dell Force10 is not responsible for any radio or television interference caused by using other thanrecommended cables and connectors or by unauthorized changes or modifications in the equipment.Unauthorized changes or modification could void the user’s authority to operate the equipment.Parameter SpecificationsNominal input voltage -40 to -60 VDCMaximum DC power supply input current 16.5 A @ -48 VDCMaximum system power input 789 W