Power supply specifications – Brocade VDX 6740 Hardware Reference Manual (Supporting VDX 6740, VDX 6740T, and VDX 6740T-1G) User Manual

Page 59

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Brocade VDX 6740 Hardware Reference Manual

47

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Power supply specifications

A

Power supply specifications

The power supplies are universal and capable of functioning worldwide without voltage jumpers or
switches. They meet IEC 61000-4-5 surge voltage requirements and are autoranging in terms of
accommodating input voltages and line frequencies.

Table 12

lists the power supply specifications for the Brocade VDX 6740 switches.

Table 13

, and

Table 14

illustrate the power consumption of the switch as measured at maximum

draw.

TABLE 12

Power supply specifications

Specification Value

Input voltage

Range: 90-264 VAC Auto-volt, Nominal: 100-240 VAC, (VDX 6740-3.5A max,
VDX 6740T and VDX 6740T-1G 6.0A max); switch autosenses input voltage
Start-up: 80-87 VAC, Turn-off: 85-75 VAC

Input frequency

Range: 47-63 Hz; Nominal: 50-60 Hz

Inrush current

Brocade VDX 6740 (250 W power supply) - Limited to 50 A peak @ 240 VAC
during cold startup at 25ºC ambient
Brocade VDX 6740T (500 W power supply) - Limited to 30 A peak @ 240 VAC
during cold startup at 25ºC ambient

Input line protection

Both AC lines are fused.

Maximum power supply output
(each)

250 watts @ 12V DC - Brocade VDX 6740
500 watts @ 12V DC - Brocade VDX 6740T

TABLE 13

VDX 6740 power consumption - maximum

MAX: Brocade VDX 6740 All ports configured with ELOAD, Traffic Running (mode 11), Fan Speed Max (8190 RPM), Room
Temp

AC voltage

Input current
(Amp) 1 PSU

Input watts
1 PSU
AC measured

BTU/hr
1 PSU

Input watts
2 PSUs
AC measured

BTU/hr
2 PSUs

100 VAC

1.65

165.00

563.16

170.00

580.22

120 VAC

1.37

165.40

564.52

170.27

581.15

200 VAC

0.85

164.00

559.75

168.45

574.93

240 VAC

0.75

164.00

559.75

168.00

573.40

TABLE 14

VDX 6740T and VDX 6740T-1G power consumption - maximum

MAX: Brocade VDX 6740T All ports configured with ELOAD, Traffic Running (mode 11), Fan Speed Max (8190 RPM), Room
Temp

AC voltage

Input current
(Amp) 1 PSU

Input watts
1 PSU
AC measured

BTU/hr
1 PSU

Input watts
2 PSUs
AC measured

BTU/hr
2 PSUs

100 VAC

4.90

488.00

1665.58

490.00

1672.41

120 VAC

4.53

482.00

1645.10

486.00

1658.76

200 VAC

2.44

474.00

1617.80

480.00

1638.28

240 VAC

2.05

473.00

1614.39

479.00

1634.87

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