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QFX5241-32OD Power System

QFX5241-1U-PWR-AO—Two redundant AC power supply units (PSUs) power the AC variant of QFX5241-32OD switch (with 1 + 1 redundancy). For voltage inputs between 200 V and 240 V, each QFX5241-1U-PWR-AO PSU provides a maximum output of 2400 W. The AC PSU consumes a maximum input power of 2600 W from the power outlet to produce the maximum output of 2400 W. For voltage inputs between 100 V and 127 V, each QFX5241-1U-PWR-AO PSU provides a maximum output of 1000 W. The AC PSU consumes a maximum input power of 1100 W from the power outlet to produce the maximum output of 1000 W. The PSU modules support AFO cooling, also known as front-to-back or ports-to FRUs airflow. The PSUs are fully redundant and perform load sharing after you install and power on the second PSU. The AC PSUs are hot-removable and hot-insertable FRUs. That is, you can remove and replace the PSUs without powering off the switch or disrupting the functioning of the switch.

Note: QFX5241-32OD AC switch operates only in nonredundant mode when the AC input voltage range is 100–127 V. Any PSU or input power failure causes a system failure in nonredundant mode. Maintain a minimum system input above 200 V for full-load operation in redundant mode.

The PSUs for the QFX5241-32OD switch are located in the FRU panel at the rear of the chassis.

Figure 1: QFX5241-32OD AC FRU Panel QFX5241-32OD AC FRU Panel
  1
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Power supply units (PSUs)

  3
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Fan modules

  2
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Power connector

QFX5241-32OD AC Power Supply Unit Description

Each 2400-W AC PSU has a single AC input that provides 12 V of output voltage. The maximum output power of the PSU is 2.4 kilowatt (kW) or 2400 W for the input voltage range of 200 V through 240 V. At maximum load, the AC input current rating is 15 A for an input voltage of 220 V.

Note:

At the output power and input voltages provided, you can maintain the input current of the switch within the rated limits.
Table 1: AC Power Specifications for QFX5241-32OD Switch

Item

Specifications

AC input voltage

High input voltage range: 200 V through 240 V.

Low input voltage range: 100 V through 127 V.

AC input current rating

15 A (for the input voltage of 200 V through 240 V)

12 A (for the low input voltage range)

AC input line frequency

50 Hz through 60 Hz (for both high and low voltage ranges)

Maximum input power

2600 W (for input voltage of 220 V)

1100 W (for input voltage of 110 V)
Output voltage (DC)

12 V (for both high and low voltage ranges)

Maximum output power

2400 W (for input voltage of 200 V through 240 V)

1000 W (for input voltage of 100 V through 127 V)
Figure 2: QFX5241-32OD AC Power Supply Unit QFX5241-32OD AC Power Supply Unit
Figure 3: Front View of QFX5241-32OD AC Power Supply Unit Front View of QFX5241-32OD AC Power Supply Unit
  1
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PSU LED

  3
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Ejector latch

  2
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Power connector

  4
—

Handle

To replace a PSU, see Maintain the QFX5241-32OD Power System.

AC Power Cord Specifications

We ship detachable AC power cords with the chassis. The AC power cord CG_CBL-SDG-C20-2M ships by default along with the QFX5130-32OD AC switches.

Note:

In North America, AC power cords must not exceed 14.75 feet (approximately 4.5 meters) in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical Code (CEC) Section 4-010(3). The cords that can be ordered for the QFX Series switches are in compliance.

Table 2 lists AC power cord specifications provided for each country or region.

Table 2: AC Power Cord Specifications

Country/Region

Electrical Specifications

Standards

Juniper Model Number

All countries (except Japan and India)

250 V, 20 A (US), 16 A (rest of the world)

SAF-D-Grid 400 to IEC 60320 C20

CG_CBL-SDG-C20-2M

Japan

250 V, 16 A

SAF-D-Grid 400 to IEC 60320 C20

CG_CBL-SDG-C20-2M

India

250 V, 16 A

SAF-D-Grid 400 to IEC 60320 C20

CG_CBL-SDG-C20-2M

QFX5241-32OD AC Power Supply Unit LED

Each QFX5241-32OD switch PSU has a single LED on the module faceplate to indicate the power status.

Figure 4: QFX5241-32OD AC PSU LED Location QFX5241-32OD AC PSU LED Location
  1
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AC PSU LED

The AC PSU uses a red and green bicolor LED to indicate the operating state.

Table 3: QFX5241-32OD AC PSU LED Color and State

LED Color and State

Description

Off

All the PSUs in the switch are not receiving AC power.

Solid green

The PSU is on and functioning properly, producing 12 V output.

Blinking green (0.5 second on, 0.5 second off)

The PSU is in standby mode (PSU is receiving AC power, but only 5 V).

Blinking green (0.25 second on, 0.25 second off,)

The PSU is undergoing a firmware update.

Blinking on and off (0.5 second red, 0.5 second off, 0.5 second green, 0.5 second off )

The PSU is issuing a warning or alert about a fault condition.

Solid red

The PSU is indicating a critical power supply failure.

Blinking red (1 second red, 1 second off)

The specific PSU is not receiving AC power.

The PSU is indicating a fault with its fan module.