Juniper QFX3500, Техническая документация

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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
3 12 379 300 0 679 715 – 715 W AC
11 35 1058 300 0 1358 1430 715 W AC 715 W AC
13 43 1315 300 0 1615 1815 1100 W AC 715 W AC
13 43 1315 300 0 1615 2115 1400 W AC 715 W AC
7 24 745 300 0 1045 1100 – 1100 W AC
14 45 1370 300 0 1670 2200 1100 W AC 1100 W AC
14 45 1370 300 0 1670 2500 1400 W AC 1100 W AC
10 34 1030 300 0 1330 1400 W
AC
– 1400 W AC
17 48 1700 300 0 2000 2800 1400 W AC 1400 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
6 200 150 0 350 350 – 350 W AC
177