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QFX5110 Power System

QFX5110 AC Power Supply Description

Except for the QFX5110-32Q-CHAS, the QFX5110 switches are shipped from the factory with two 650 W power supplies pre-installed. See Figure 1 for an example of a QFX5110 AC power supply. Each power supply is a hot-removable and hot-insertable field-replaceable unit (FRU) when the second power supply is installed and running. You can install replacement power supplies in the two slots next to the fan modules without powering off the switch or disrupting the switching function.

The AC power supply in QFX5110 switches is available in different airflow configurations. Be sure to use the correct power supply for your chassis product SKU (see Table 1).

CAUTION:

Do not mix power supplies with different airflow. The system raises an alarm when a power supply having a different airflow or wattage is inserted into the chassis.

Figure 1: AC Power Supply in QFX5110 SwitchesAC Power Supply in QFX5110 Switches
  1

Handle

  3

AC appliance inlet

  2

Power cord retainer

  4

Security latch

The power supply provides FRU-to-port or port-to-FRU airflow depending on the product SKU you purchase. On legacy switches, or switches with an LCD, this airflow is called back-to-front and front-to-back. The power supplies either have labels on the handles that indicate the direction of airflow or they have color-coded handles with a fan icon. See Figure 2 for an example of the power supply. Either a power supply has the label AFI or a blue handle, which denotes FRU-to-port airflow. A power supply with the label AFO or a gold-colored handle denotes port-to-FRU airflow.

Figure 2: Power Supply Handle DetailPower Supply Handle Detail
  1

Fan icon on handle

 
CAUTION:

Verify that the airflow direction on the power supply handle matches the direction of airflow in the chassis. Ensure that each power supply you install in the chassis has the same airflow direction. If you install power supplies with two different airflow directions, Junos OS raises an alarm. If you need to convert the airflow pattern on a chassis, you must change out all the fans and power supplies at one time to use the new direction.

Table 1 shows the different power supplies and their direction of airflow.

Table 1: Airflow Direction in QFX5110 AC Power Supplies

Product Number

Direction of Airflow

Color of Power Supply Handle

JPSU-650W-AC-AFI

FRU-to-port

Juniper Azure Blue

JPSU-650W-AC-AFO

Port-to-FRU

Juniper Gold

To avoid electrical injury, carefully follow instructions in Connecting AC Power to a QFX5110.

QFX5110 AC Power Specifications

Table 2 describes the AC power specifications for QFX5110 switches. The typical and maximum power consumption values are calculated using small form-factor plus (SFP+) direct attach copper (DAC) cables on all network ports and all 100GBASE-SR4 transceivers in the uplink ports. Traffic is run at 25° C ambient.

Table 2: AC Power Specifications for QFX5110 Models

Item

QFX5110-48S Specification

QFX5110-32Q Specification

AC input voltage

Operating range: 90 VAC to 264 VAC

Operating range: 90 VAC to 264 VAC

AC input line frequency

50–60 Hz

50–60 Hz

AC input current rating

3.6 A at 90 VAC

3.6 A at 90 VAC

Idle power consumption

150 W

250 W

Typical power consumption

195 W (input current of 0.973 A at 220 VAC)

290 W

Maximum power consumption

300 W

340 W

QFX5110 AC Power Cord Specifications

Detachable AC power cords are shipped with the chassis, if you include them as part of your order. The coupler is type C13 as described by International Electrotechnical Commission (IEC) standard 60320. The plug end of the power cord fits into the power source outlet that is standard for your geographical location.

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

Table 3: AC Power Cord Specifications

Country/Region

Electrical Specifications

Plug Standards

Juniper Model Number

Spare Juniper Model Number

Graphic

Australia

250 VAC, 10 A, 50 Hz

IEC 60884-1

CG_CBL-C13-06-AU

CBL-EX-PWR-C13-AU

China

250 VAC, 10 A, 50 Hz

GB 2099.1–2008

CG_CBL-C13-06-CH

CBL-EX-PWR-C13-CH

Europe (except Italy, Switzerland, and United Kingdom)

250 VAC, 10 A, 50 Hz

IEC 60884-1

CG_CBL-C13-06-EU

CBL-EX-PWR-C13-EU

Italy

250 VAC, 10 A, 50 Hz

CEI.23-16/VII

CG_CBL-C13-06-IT

CBL-EX-PWR-C13-IT

Japan

125 VAC, 12 A, 50 Hz or 60 Hz

JIS C8303

CG_CBL-C13-06-JP

CBL-EX-PWR-C13-JP

North America

125 VAC, 13 A, 60 Hz

NEMA 5-ISP

CG_CBL-C13-06-US

CBL-EX-PWR-C13-US

South Korea

250 VAC, 10 A, 60 Hz

KSC 8305

CG_CBL-C13-06-KR

CBL-EX-PWR-C13-KR

Switzerland

250 VAC, 10 A, 50 Hz

SEV 1011–2009

CG_CBL-C13-06-SZ

CBL-EX-PWR-C13-SZ

United Kingdom

250 VAC, 10 A, 50 Hz

BS 1363

CG_CBL-C13-06--UK

CBL-EX-PWR-C13-UK

QFX5110 AC Power Supply LEDs

Figure 3 shows the location of the LEDs on the power supply.

Figure 3: AC Power Supply LEDs on a QFX5110 SwitchAC Power Supply LEDs on a QFX5110 Switch

Table 4 describes the LEDs on the AC power supplies.

Table 4: AC Power Supply LEDs on a QFX5110 Switch

LED

Color

State

Description

AC OK

Unlit

Off

The power supply is disconnected from power, or power is not coming into the power supply.

Green

On steadily

Power is coming into the power supply.

DC OK

Unlit

Off

The power supply is disconnected from power, or the power supply is not sending out power correctly.

Green

On steadily

The power supply is sending out power correctly.

Fault

Amber

On steadily

An error has been detected in the power supply. Replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supply installed in the chassis until you are ready to replace it.

Note:

If the AC OK LED and the DC OK LED are unlit, either the AC power cord is not installed properly or the power supply fuse has failed. If the AC OK LED is lit and the DC OK LED is unlit, the AC power supply is installed properly, but the power supply has an internal failure.

QFX5110 DC Power Supply Description

Except for the QFX5110-32Q-CHAS, the QFX5110 switches are shipped from the factory with two power supplies (see Figure 4). Each power supply is a hot-removable and hot-insertable field-replaceable unit (FRU) when the second power supply is installed and running. You can install replacement power supplies in the two slots next to the fan modules without powering off the switch or disrupting the switching function.

The DC power supply in QFX5110 is 650 W with dual feeds for power resiliency.

Figure 4: DC Power Supply for the QFX5110 DC Power Supply for the QFX5110
  1

Terminal block

  3

Security latch

  2

Protective earthing terminal

  4

Handle

Note:

The DC power supply in the switch has four terminals labeled V-, V-, V+, and V+ (see Figure 5) for connecting DC power source cables labeled positive (+) and negative (–).

Figure 5: DC Power Supply Faceplate on a QFX5110DC Power Supply Faceplate on a QFX5110
  1

Shunt negative input terminals (-48V)

  5

Protective earthing terminal

  2

Shunt positive input terminals (+RTN)

  6

Fault LED

  3

Terminal block

  7

Output LED

  4

Security latch

  8

Input LED

CAUTION:

Verify that the airflow direction on the power supply handle matches the direction of airflow in the chassis. Ensure that each power supply you install in the chassis has the same airflow direction. If you install power supplies with two different airflow directions, Junos OS raises an alarm. If you need to convert the airflow pattern on a chassis, you must change out all the fans and power supplies at one time to use the new direction.

Table 5 shows the different power supplies and their direction of airflow.

Table 5: Airflow Direction in QFX5110 DC Power Supplies

Product Number

Direction of Airflow

Color of Power Supply Handle

JPSU-650W-DC-AFI

FRU-to-port

Juniper Azure Blue

JPSU-650W-DC-AFO

Port-to-FRU

Juniper Gold

To avoid electrical injury, carefully follow the instructions in Maintaining the QFX5220 Power System.

QFX5110 DC Power Specifications

Table 6 describes the QFX5110 DC power specifications. The typical and maximum power consumption values are calculated using dummy transceivers on all ports. Traffic is run at 25° C ambient.

Table 6: DC Power Specifications for QFX5110

Item

Specifications

DC input voltage

  • Rated operating voltage: –39 VDC to –60 VDC

  • Operating voltage range: –40 VDC through –72 VDC

DC input current rating

–8.2 A at 39 VDC

Idle power consumption

  • QFX5110-48S

  • QFX5110-32Q

  • 150 W

  • 250 W

Typical power consumption

  • QFX5110-48S

  • QFX5110-32Q

  • 190 W

  • 280 W

Maximum power consumption

  • QFX5110-48S

  • QFX5110-32Q

  • 248 W

  • 335 W

QFX5110 DC Power Supply LEDs

Figure 6 shows the location of the LEDs on the DC power supply.

Figure 6: DC Power Supply Faceplate on a QFX5110 SwitchDC Power Supply Faceplate on a QFX5110 Switch
  1

Input LED

  3

Fault LED

  2

Output LED

 
CAUTION:

The V+ terminals are shunted internally together, as are the V- terminals. The same polarity terminal can be wired together from the same source to provide an additional current path in a higher power chassis. Do not connect the terminals to different sources.

Table 7 describes the LEDs on the DC power supplies.

Table 7: DC Power Supply LEDs on a QFX5110 Switch

Name

Color

State

Description

Input

Unlit

Off

The power supply is disconnected from power, or power is not coming into the power supply.

Green

On steadily

Power is coming into the power supply.

Output

Unlit

Off

The power supply is disconnected from power, or the power supply is not sending out power correctly.

Green

On steadily

The power supply is sending out power correctly.

Fault

Amber

On steadily

An error has been detected in the power supply. Replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supply installed in the chassis until you are ready to replace it.