Install Guide

Table 5. AC power requirements
Parameter Specifications
Power supply 100–240 VAC 50/60 Hz.
Maximum current draw per system
7.1 A @ 550 Watts
3.4 A @ 550 Watts
Maximum power consumption 550 Watts.
Typical power consumption 338 Watts.
Table 6. DC power requirements
Parameter Specifications
Minimum/maximum input voltage range -40.5V/ -48V/ -60V
Input power at full load
−40.5V/970W −48V/930W −60V/ 950W, without fan.
−40.5V/980W −48V/940W −60V/ 960W, with fan.
Input current at full load
−40.5V/23.8A −48V/19.0A −60V/ 15.6A, without fan.
−40.5V/24.0A −48V/19.2A −60V/ 16.0A, with fan.
Start up VDC—voltage when the system is powered on 39.0+/−1.5V.
Start off VDC—voltage during the boot up process 37.5+/−1.5V.
IEEE standards
The S4048T–ON complies with the following IEEE standards:
● 802.3ab Gigabit Ethernet (1000BASE-T)
● 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)
● 802.3z Gigabit Ethernet (1000BASE-X)
Agency compliance
The S4048T–ON is designed to comply with the following safety and agency requirements:
USA Federal Communications Commission Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC
rules. These limits are designated to provide reasonable protection against harmful interference 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 the instructions, it may cause harmful interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference, in which case users will be required to take whatever 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 emission limits. Dell EMC is not
responsible for any radio or television interference caused by using other than recommended 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.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
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Specifications