Installation Guide

Summit DC Power Supplies for X670 and X770 Series Switches
The following tables list the specifications for the 550 W DC PSU-FB (Model 10926) and 550 W DC
PSU-BF (Model 10928) power supplies for use with the Summit X670 and Summit X770 series switches.
Dimensions Height: 1.5 inches (3.8 cm)
Width: 3.1 inches (7.8 cm)
Depth: 13.3 inches (33.8 cm)
Weight 3.22 lb (1.46 kg)
Table 502: Power Specifications
Nominal Input –40 V to –60 V, 18 A
DC Voltage Input Range
–36 to –75 V
Maximum Input Amperages
18 A @ 36 V 13.5 A @ 48 V
8.5 A @ 75 V
Inrush Current 25 A peak
Inrush Energy 0.625 A
2
S
Minimum wire size 14 AWG (1.5 mm
2
) copper stranded
DC Output
12 V , 45 A/3.3 V , 3.0 A
DC Output Power (W) 550 W
Table 503: Environmental Specifications
Operating temperature 0°C to 45°C (normal operation)
Storage temperature -40°C to 70°C
Operating humidity 20% to 90% relative humidity, non-condensing
Operating altitude Up to 10,000 feet
Operational shock
Frequency Range 5 to 350 Hz, 200 to 2000 Hz PSD: 0.0001g2/Hz
350 to 500 Hz -6dB/Octave, 500 Hz 0.000052 Hz
Acceleration 0.21.0 gRMS (Typical Level)
Duration: 20 min per axis
Summit 715 W Power Supplies Technical Specifications
The following Summit 715 W power supplies are available for use in Summit X460-G2 series switches.
• Summit 715 W AC power supply: front-to-back
airflow (part no. 10951)
• Summit 715 W AC power supply: back-to-front airflow (part no. 10952)
Technical
Specifications
Summit DC Power Supplies for X670 and X770 Series
Switches
Summit Family Hardware Installation Guide 641