Juniper QFX5110 Series - N+N Redundancy Configuration of AC Power Supplies

Table 57: N+0 AC Power Calculations for EX4300-48MP and EX4300-48MP-S Switches
Ports
Enabled
for
PoE++
Ports
Enabled
for
PoE+
Available
PoE
Power (in
watts)
Base
Power
(in
watts)
Backup
Power
(in
watts)
Usable
System
Power
(in watts)
Total
Power (in
watts)
PSU
0
(W)
+
PSU
1
(W)
Power Supply Rating
PSU
1
PSU
0
3123793000679715–715 W AC
11351058300013581430715 W AC715 W AC
134313153000161518151100 W AC715 W AC
134313153000161521151400 W AC715 W AC
724745300010451100–1100 W AC
144513703000167022001100 W AC1100 W AC
144513703000167025001400 W AC1100 W AC
10341030300013301400 W
AC
–1400 W AC
174817003000200028001400 W AC1400 W AC
N+N Redundancy Configuration of AC Power Supplies
You can configure your switch for N+N redundancy, in which N power supplies can be removed or fail and
the remaining N power supplies continue to supply power to the switch without interruption.
Table 58 on page 177 lists the N+N power calculation for 24-port EX4300 switches that use 350 W, 715 W,
and 1100 W power supplies.
Table 58: N+N AC Power Calculations for 24-Port EX4300 Switches
Ports
enabled
for
PoE+
Available
PoE
Power (in
watts)
Base
Power (in
watts)
Backup
Power
(in
watts)
Usable
System
Power (in
watts)
Total
Power (in
watts)
Power Supply Rating
PSU
1
PSU
0
62001500350350–350 W AC
177