Technical data

48 Brocade VDX 6720 Hardware Reference Manual

53-1002084-06

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 11 lists the power supply specifications for the Brocade VDX 6720 switches.

TABLE 10 Facility requirements

Type Requirements

Electrical • Primary AC input 85-265 VAC nominal, 47-63 Hz; switch autosenses input voltage

• Adequate supply circuit, line fusing, and wire size, as specified by the electrical rating

on the switch nameplate

• Circuit protected by a circuit breaker and grounded in accordance with local electrical

codes

Refer to Table 11 on page 48 for complete power supply specifications.

Thermal

• Ambient air temperature not exceeding 40° C (104° F) while the switch is operating

Cabinet (when

rack-mounted)

• One rack unit (1U) in a 48.3 cm (19-inch) cabinet - Brocade VDX 6720-24

Two rack units (2U) in a 48.3 cm (19-inch) cabinet - Brocade VDX 6720-60

• All equipment in cabinet grounded through a reliable branch circuit connection

• Additional weight of switch not to exceed the cabinet’s weight limits

• Cabinet secured to ensure stability in case of unexpected movement

TABLE 11 System power specifications

Specification Value

Maximum output (per power supply) 250 watts, 12 VDC - Brocade VDX 6720-24

500 watts, 12 VDC - Brocade VDX 6720-60

AC input power draw Brocade VDX 6720-24 - Idle: 106 W, Maximum: 132 W

Brocade VDX 6720-60 - Idle: 270 W, Maximum: 330 W

AC input voltage 85-264 VAC, nominal 100-240 VAC

AC input line frequency 47-63 Hz, nominal 50-60 Hz

AC inrush current Brocade VDX 6720-24 - Maximum of 50A @ 240 VAC for

10ms or less

Brocade VDX 6720-60 - Maximum of 30A @ 25°C

Input line protection AC lines are fused