Brocade VDX 6740 Hardware Reference Manual (Supporting VDX 6740, VDX 6740T, and VDX 6740T-1G) - Manual (Page 59)

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