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BlackDiamond 10808 Switch Power Supplies and Power Supply Controllers
Power Supply Overview
The AC power supplies are fully fault tolerant and load-sharing. If one power supply fails, the other
power supplies will provide sufficient power to operate a fully loaded chassis. Table 14 lists the
specifications for the power supply.
Table 14: BlackDiamond AC power supply specifications
Characteristic
AC power supply input socket
Input power
Output power
AC line frequency
Table 15: Power draw
Part
Chassis with Fan Tray
MSM-1/MSM-1XL
G60X
G60T
10G6X
Each power supply has two DC outputs (12V Standby and 48V) that connect to the chassis backplane.
The 12V Standby is used only to power the system logic circuitry. The 48V is used to power all the
system blades and the fan trays.
Since the power supply can provide higher output power at high line, use of 200 - 240VAC input is
recommended. If low line is used to power the chassis, more power supplies will be needed to support
the load. The software will determine the maximum available power required for the chassis and will
enable the blades accordingly. You must power the entire chassis from one type of AC input line only. If
low line is used to power one or more of the power supplies, all power supplies in that chassis will be
limited to low power level only to support redundancy.
Each BlackDiamond 10808 chassis power supply contains two cooling fans. Air enters from the front
vents on the power supply and exits from the rear vents of the chassis. This airflow is independent of
the airflow through the rest of the chassis.
Figure 32 displays an example of how the air flows through the power supplies in a BlackDiamond
10808 chassis.
80
Specification
IEC part number 320 C14
100-120 AC, 10 A max.
200-240 AC, 9 A max.
700 W / 1200 W
50 Hz to 60 Hz
Power required
250W
444W
223W
220W
230W
Extreme Networks BlackDiamond 10K-Series Switch Installation Guide
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