Dc Power Supplies - Extreme Networks Alpine 3802 Hardware Installation Manual

Table 47: 110 VAC power supply LED activity (continued)
LED
DC Out

DC Power Supplies

The DC inputs are located on the front of the power supply. Each set of power terminals on the DC
power supply consists of two 6-mm, metric-threaded, nickel-plated, brass studs that are centered 0.625
inch (15.86 mm) apart.
The earth ground studs extend 0.52 inch (13.2 mm) above the power supply faceplate; the set of positive
(+) and negative (–) studs extend 0.9 inch (22.9 mm) above the faceplate. The nickel plating on the studs
enhances conductivity and resists corrosion.
The input terminals are isolated from the ground terminals. The BlackDiamond DC power supplies
operate with DC input that can range from -42 to -70 V. Each DC power supply requires a dedicated
60 A service.
The DC power supply ships with the input lugs attached to the power supply, and the power supplies
slide in from the front of the chassis, as illustrated in Figure 129.
For centralized DC power connections, install only in a restricted access area.
Figure 129: DC power supplies in a BlackDiamond 6808 or a BlackDiamond 6804
i
POWER
-48V
-48V RET
V
48V, 60A
Table 48 describes the LED activity on the DC power supply
Extreme Networks Consolidated "i" and "e" Series Hardware Installation Guide
Color Indicates
Green All DC outputs are operational
Amber One or more DC outputs failed
Off No power
DC OUT
DC IN
i
POWER
50022
SINGLE DC PSU
-48V
-48V RET
50022
SINGLE DC PSU
V
48V, 60A
BlackDiamond Power Supplies
DC OUT
DC IN
BD_DCpsx
231