Juniper EX6210 Complete Hardware Manual page 138

Complete Hardware Guide for EX6210 Ethernet Switches
Table 53: Calculating the Number of Power Supplies Required for Your EX6210 Switch
Configuration (continued)
Step
3 Total PoE+ Power Requirement of the
Installed Line Cards = (Number of line cards
installed in the switch) * (Maximum PoE+
Power Requirement of each line card)
For details about the PoE+ power budget
for your switch, see Understanding PoE on
EX Series Switches.
4 Total Power Requirement of the Installed
Line Cards = (Total Base Power
Requirement of the Installed Line Cards) +
(Total PoE+ Power Requirement of the
Installed Line Cards)
5 Maximum Internal Power Requirement of
the Switch = (Chassis Base Power Budget)
+ (Total Power Requirement of the Installed
Line Cards)
6 Determine the output wattage of the
installed power supply:
The output wattage of a 2500 W AC
power supply is 2500 W at high-voltage
line (200–240 VAC) input.
The output wattage of a 2500 W AC
power supply is 1250 W at low-voltage
line (100–120 VAC) input.
The output wattage of a 5000 W AC
power supply is 5000 W at high-voltage
line (200–240 VAC) input when both
input feeds are connected and active.
The output wattage of a 5000 W AC
power supply is 2500 W at low-voltage
line (100–120 VAC) input when both input
feeds are connected and active.
The output wattage of a 2100 W DC
power supply is 2100 W
118
EX6210 switch
with two 48-port
EX6210 switch PoE+ line cards,
with two 48-port 2500 W AC power
RJ-45 line cards, supply
2100 W DC power (high-voltage line
supply input)
- = (2) * (1440 W)
= 2880 W
= 300 W = (440 W + 2880
W)
= 3320 W
= 500 W + 300 W = (500 W + 3320
W)
= 800 W
= 3820 W
2100 W 2500 W
EX6210 switch
with two 48-port
SFP line cards,
5000 W AC power
supply
(high-voltage line
input)
-
= 500 W
= 500 W + 500 W
= 1000 W
5000 W
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