Extreme Networks BlackDiamond 8800 Series - Manual (Page 48)

Power Supply Units for BlackDiamond 8800 Series Switches
BlackDiamond 8800 Series Switches Hardware Installation Guide 48
Extreme Networks 1200 W DC PSU
Figure 26 shows the Extreme Networks 1200 W DC UL-listed accessory power supply unit
(Model # 60021/PS 2350). The power supply bays in the BlackDiamond 8800 series switch can
accommodate up to six hot-swappable 1200 W DC PSUs.
Figure 26: 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 that exists through the rest of the
switch.
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 27 ). The connector end has a locking mechanism that locks onto the
DC PSU to prevent accidental removal of the input DC cable.
Figure 27: Input DC Power Cable for the 1200 W DC PSU
To use the 1200 W DC PSU, you need a -48 V DC power source capable of providing 50 A dedicated
power to each 1200 W DC PSU installed in the switch.
NOTE
Extreme Networks does not recommended using the 1200 W DC PSU in combination with any Extreme Networks
AC PSU in the same BlackDiamond 8800 series system. Extreme Networks recommends that DC and AC PSU units
BD_168
EX_135
Return Black: Return
Green/yellow:
Ground
Blue: -48V
Lock
Ground
10 ft.
-48Vdc