Calculating The Number Of Power Supplies Required For Your Ex6210 Switch Configuration; Table 53: Calculating The Number Of Power Supplies Required For Your Ex6210 - Juniper EX6210 Complete Hardware Manual

Table 52: Calculating the Maximum System Power Required for Your EX6210 Switch
Configuration (continued)
Step
7 Maximum System Power Requirement =
(Maximum Internal Power Requirement of
the Switch) / (Efficiency of the Installed
Power Supply)

Calculating the Number of Power Supplies Required for Your EX6210 Switch Configuration

Table 53: Calculating the Number of Power Supplies Required for Your EX6210 Switch
Configuration
Step
1 Start with the chassis base power budget
of your switch.
Compute chassis base power budget as
shown in "Calculating the Chassis Base
Power Budget for Your EX6210 Switch" on
page 115.
2 Total Base Power Requirement of the
Installed Line Cards = (Number of line cards
installed in the switch) * (Maximum Power
Requirement of line card)
For maximum power requirements of
different EX6210 switch components, see
Table 51 on page
Copyright © 2014, Juniper Networks, Inc.
Use the procedure described in this section to calculate the number of power supplies
required by your switch configuration. The recommended power configuration for EX6210
switches is N+1. You can optionally configure power management to manage the power
supplies for N+N redundancy. See Understanding Power Management on EX Series
Switches.
To calculate the number of power supplies required for your EX6210 switch, follow the
instructions in Table 53 on page
113.
Chapter 7: Planning Power Requirements
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)
= 800 W / .92 = 3820 W / .94
= 870 W = 4064 W
117.
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)
500 W 500 W
= (2) * (150 W) =(2) * (220 W)
= 300 W = 440 W
EX6210 switch
with two 48-port
SFP line cards,
5000 W AC power
supply
(high-voltage line
input)
1000 W / .92
= 1087 W
EX6210 switch
with two 48-port
SFP line cards,
5000 W AC power
supply
(high-voltage line
input)
500 W
= (2) * (250 W)
= 500 W
117