Extreme Networks BlackDiamond 12804 - Manual (Page 30)

Extreme Networks Power Supply Units for BlackDiamond Switches
BlackDiamond 12800 Series Switches Hardware Installation Guide 30
Extreme Networks 1200 W DC PSU
Figure 14 shows the Extreme Networks 1200 W DC UL-listed accessory power supply unit (Model
60021/PS 2350). This power supply is compatible with the BlackDiamond 12804 switch. The power
supply bay in the BlackDiamond 12804 switch can accommodate up to six hot-swappable Extreme
Networks 1200 W DC PSUs. You cannot install a 1200 W DC PSU in the BlackDiamond 12802 switch.
Figure 14: 1200 W DC PSU
In an N+N configuration, each group of power supplies can provide A/B feed redundancy for the
system.
The input DC cable has an input connector on one end and precut wire on the other end that goes to
the DC power source (see
Figure 15 ). The connector end has a locking mechanism that locks onto the
DC PSU to prevent accidental removal of the input DC cable.
Figure 15: Input DC Power Cable for the 1200 W DC PSU
Airflow enters from the front vents on the 1200 W DC PSU and exits to the rear vents of the switch.
Airflow through the 1200 W DC PSU is independent of the airflow through the rest of the switch.
To use the 1200 W DC PSU, you need a -48 V DC power source capable of providing 50 A dedicated
power to each of the 1200 W DC PSUs installed in the switch.
BD_168
EX_135
Return Black: Return
Green/yellow:
Ground
Blue: -48V
Lock
Ground
10 ft.
-48Vdc