Table 272: Power Specifications (AC Power Supplies) (continued)
Power cord wall plug
Refer to
Power Cord Requirements for AC-Powered Switches and AC
on page 393.
Power supply cord gauge
18 AWG (0.75 mm
2
) up to 6 feet or 2 meters
or
16 AWG (1.0 mm
2
) over 6 feet
Efficiency
Low Line: 88% at 50% load and 86% at 100% load
High Line: 90% at 50% and 100% loads
Table 273: Power Specifications (DC Power Supplies)
Nominal input
-48 to -60 VDC, 20.4 A
DC Voltage input range
-35 to -75 V
Inrush Current
21 A peak
Maximum wire size
14 AWG (1.5 mm2 copper stranded).
DC Output
+12.2VDC, 61.5A; +12Vaux, 2.5A
Power (W)
750 W
Table 274: Environmental Specifications (All Power Supply Units)
Operating temperature
0°C to 55°C (normal operation)
Storage temperature
-40°C to 70°C
Operating humidity
20% to 90% relative humidity, non-condensing
Operational shock
30 m/s
2
(3 G)
Summit 770 W Power Supplies Technical Specifications
The following Summit 770 W power supplies are available for use in ExtremeSwitching X690 and X870
series switches.
•
Summit 770 W AC power supply: front-to-back airflow (part no. 10960)
•
Summit 770 W AC power supply: back-to-front airflow (part no. 10961)
Table 275: Physical Specifications
Dimensions
Height: 1.57 inches (4.0 cm)
Width: 3.25 inches (8.3 cm)
Length: 10.22 inches (26.0 cm)
Weight
2.55 lb (1.12 kg)
Technical Specifications
ExtremeSwitching and Summit Switches: Hardware Installation Guide
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