Ieee Standards - Dell S4820T Installation Manual

Parameter
Reliability
NOTE: The table below represents the DC PSU's capabilities and does not represent S4820T
operation.
The power supply operates within all specified limits over the following input voltage range.
Table 9. DC Input Specification
Parameter
Min/max input voltage range
Maximum power consumption
Typical power consumption
Input power at full load
Input current at full load
Start up VDC
Start off VDC 37.5

IEEE Standards

The S4820T switch complies with the following IEEE standards:
• 802.1AB LLDP
• 802.1ag Connectivity fault Management
• 802.1D Bridging, STP
• 802.1p L2 Prioritization
• 802.1Q VLAN Tagging, Double VLAN Tagging, GVRP
• 802.1s MSTP
• 802.1w RSTP
• 802.3ab Gigabit Ethernet (1000BASE-T)
• 802.3ac Frame Extensions for VLAN Tagging
• 802.3ad Link Aggregation with LACP
• 802.3ae 10 Gigabit Ethernet (10GBASE-X)
• 802.3ba 40 Gigabit Ethernet (40GBase-SR4, 40GBase-CR4) on optical ports
• 802.3u Fast Ethernet (100BASE-TX)
• 802.3x Flow Control
• 802.3z Gigabit Ethernet (1000BASE-X)
• ANSI/TIA-1057 (LLDP-MED)
48
Specifications
MTBF 355,178 hours
Specifications
−40.5V /−48V/ −60V
800 Watts
338 Watts
−40.5V/970W −48V/930W −60V/950W (without
fans)
−40.5V/980W −48V/940W −60V/960W (with fans)
−40.5V/23.8A −48V/19.0A −60V/15.6A (without
fans)
−40.5V/24A −48V/19.2A −60V/16.0A (with fans)
39.0 +/− 1.5V
37.5 +/− 1.5V
Technical Specifications