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EX4400 Power System

AC Power Supply in EX4400 Switches

We ship the EX4400 switches with one power supply preinstalled in the rear panel of the switches. You can install up to two power supplies in the switch. You must order the second power supply and a power source cord separately. The power supply slots are numbered 0 and 1, and each slot has a power icon next to it. The power supplies support front-to-back or back-to-front airflow directions. The power supplies are fully redundant, load-sharing, and hot-removable and hot-insertable field-replaceable units (FRUs) when the second power supply is installed and running. You can remove and replace either one of the power supplies without powering off the switch or disrupting switch functions.

Do not mix:

  • AC and DC power supplies in the same chassis.

  • Power supplies with different airflow directions in the same chassis.

  • Fan modules with different airflow directions in the same chassis.

  • Power supplies and fan modules with different airflow directions in the same chassis.

This topic describes the AC power supplies that EX4400 switches support.

Characteristics of the AC Power Supply

The AC power supplies for EX4400 switches come in 550-W, 1050-W, and 1600-W models. EX4400-24T, EX4400-24X, EX4400-48T, and EX4400-48F switches support 550-W AC power supplies (see Figure 1). EX4400-24P and EX4400-24MP switches support 1050W and 1600-W AC power supplies. These models support 1600-W AC power supply if you have Junos OS Release 22.3R1 or later installed. We ship the models with one 1050-W power supply. You can order the 1600-W power supply separately. You must not install different models of power supplies in the same chassis. EX4400-48P and EX4400-48MP switches support 1600-W AC power supplies). The AC power supplies support IEEE 802.3bt Power over Ethernet (PoE-bt) in EX4400-24P, EX4400-24MP, EX4400-48P, and EX4400-48MP models.

Figure 1: 550-W AC Power Supply for EX4400-24T, EX4400-24X, EX4400-48T, and EX4400-48F Switches 550-W AC Power Supply for EX4400-24T, EX4400-24X, EX4400-48T, and EX4400-48F Switches
  1

Power supply handle

  3

Power supply ejector lever

  2

Power supply inlet

 
Figure 2: 1050-W AC Power Supply 1050-W AC Power Supply
  1

Power supply handle

  3

Power supply ejector lever

  2

Power supply inlet

 
Figure 3: 1600-W AC Power Supply 1600-W AC Power Supply
  1

Power supply handle

  3

Power supply ejector lever

  2

Power supply inlet

 

Table 1 lists the details of the 550-W, 1050-W, and 1600-W AC power supplies used in EX4400 switches.

Table 1: Details of the AC Power Supplies in EX4400 Switches

Details

550-W AC Power Supply

1050-W AC Power Supply

1600-W AC Power Supply

Model number

  • JPSU-550-C-AC-AFO

  • JPSU-550-C-AC-AFI

JPSU-1050-C-AC-AFO

JPSU-1600-C-AC-AFO

Minimum installed in chassis

1

1

1

Maximum installed in chassis

2

2

2

AC appliance inlet

Note:

Each AC appliance inlet requires a dedicated AC power feed.

Number

1

1

1

Type

IEC-320-C13

IEC-320-C15

IEC-320-C15

Power supply status LED

OUT.OK

OUT.OK

OUT.OK

To prevent electrical injury while installing or removing AC power supplies, carefully follow instructions in Install a Power Supply in an EX4400 Switch and Remove a Power Supply from an EX4400 Switch.

Specifications of the AC Power Supplies Used in EX4400 Switches

  • Table 2 provides the power supply specifications of the 550-W AC power supplies.

  • Table 3 provides the power supply specifications of the 1050-W AC power supplies.

  • Table 4 provides the power supply specifications of the 1600-W AC power supplies.

  • Table 5 provides the typical power consumption for the EX4400 switch models. Typical power is the weighted power measured according to the TEER/ATIS 0600015 standard.

Table 2: Specifications of the 550-W AC Power Supplies Used in EX4400 Switches

Item

Specification

AC input voltage

  • Low-voltage line: 100–127 VAC

  • High-voltage line: 200–240 VAC

AC input line frequency

47–63 Hz

AC input current rating

  • Low-voltage line: 7.1 A

  • High-voltage line: 3.4 A

Output power

550 W

Efficiency

80-plus platinum efficiency certified

Table 3: Specifications of the 1050-W AC Power Supplies Used in EX4400 Switches

Item

Specification

AC input voltage

  • Low-voltage line: 100–120 VAC

  • High-voltage line: 200–240 VAC

AC input line frequency

50–60 Hz

AC input current rating

  • Low-voltage line: 12 A

  • High-voltage line: 6.05 A

Output power

1050 W

Efficiency

80-plus platinum efficiency certified

Table 4: Specifications of the 1600-W AC Power Supplies Used in EX4400 Switches

Item

Specification

AC input voltage

  • Low-voltage line: 100–120 VAC

  • High-voltage line: 200–240 VAC

AC input line frequency

50–60 Hz

AC input current rating

  • Low-voltage line: 12 A

  • High-voltage line: 9 A

Output power

1600 W

Efficiency

80-plus platinum efficiency certified

Table 5: Typical Power Consumption for the EX4400 Switch Models

Model

Typical Power Consumption

EX4400-24T

90 W

EX4400-24P

When PoE is drawn: 1598 W

When PoE is not drawn: 107 W

EX4400-24MP

When PoE is drawn: 1860 W

When PoE is not drawn: 138 W

EX4400-24X

126 W

EX4400-48T

96 W

EX4400-48P

When PoE is drawn: 1964 W

When PoE is not drawn: 135 W

EX4400-48F

116.5 W

EX4400-48MP

When PoE is drawn: 2484 W

When PoE is not drawn: 183 W

AC Power Supply Airflow

Each power supply has its own fan and is cooled by its own internal cooling system. EX4400 switches support power supplies with the following airflow directions:

  • Front-to-back (cold air enters through the vents on the front panel of the switch and hot air exhausts through the vents on the rear panel), indicated by the AIR OUT label and the Juniper Gold handle.

  • Back-to-front (cold air enters through the vents on the rear panel of the switch and hot air exhausts through the vents on the front panel), indicated by the AIR IN label and the Juniper Azure Blue handle.

Table 6 lists the AC power supply models and the direction of airflow in them.

Table 6: Airflow Direction in AC Power Supply Models for EX4400 Switches

Model

Direction of Airflow

  • JPSU-550-C-AC-AFO

  • JPSU-1050-C-AC-AFO

  • JPSU-1600-C-AC-AFO

Front-to-back—that is, cold air enters the chassis through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis, indicated by the AIR OUT label and the Juniper Gold handle.

JPSU-550-C-AC-AFI

Back-to-front—that is, cold air enters the chassis through the vents on the rear panel of the chassis and hot air exhausts through the vents on the front panel of the chassis, indicated by the AIR IN label and the Juniper Azure Blue handle.

Specifications of the Power Cord for AC Power Supplies for EX4400 Switches

Each AC power supply has a single AC appliance inlet that requires a dedicated AC power feed. A detachable AC power cord is supplied with each AC power supply. We ship the 550-W AC power supplies with AC power cords with the C13 coupler type and the 1050-W and the 1600-W AC power supplies with the C15 coupler type 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 ft (4.5 m) in length, to comply with National Electrical Code (NEC) Section 400-8 (NFPA 75, 5-2.2) and Canadian Electrical Code (CEC) Section 4-010(3).

Table 7 lists the AC power cords specifications provided for the 550-W power supplies for each country or region.

Table 7: AC Power Cord Specifications for 550-W AC Power Supplies for EX4400-24T, EX4400-24X, EX4400-48T, and EX4400-48F Switches

Country/Region

Electrical Specifications

Plug Standards

Juniper Model Number

Graphic

Argentina

250 VAC, 10 A, 50 Hz

IRAM 2073 Type RA/3

CBL-EX-PWR-C13-AR

No graphic available

Australia

250 VAC, 10 A, 50 Hz

AS/NZS 3112 Type SAA/3

CBL-EX-PWR-C13-AU

Brazil

250 VAC, 10 A, 50 Hz

NBR 14136 Type BR/3

CBL-EX-PWR-C13-BR

No graphic available

China

250 VAC, 10 A, 50 Hz

GB 1002-1996 Type PRC/3

CBL-EX-PWR-C13-CH

Europe (except Italy, Switzerland, and United Kingdom)

250 VAC, 10 A, 50 Hz

CEE (7) VII Type VIIG

CBL-EX-PWR-C13-EU

India

250 VAC, 10 A, 50 Hz

IS 1293 Type IND/3

CBL-EX-PWR-C13-IN

No graphic available

Israel

250 VAC, 10 A, 50 Hz

SI 32/1971 Type IL/3G

CBL-EX-PWR-C13-IL

Italy

250 VAC, 10 A, 50 Hz

CEI 23-16 Type I/3G

CBL-EX-PWR-C13-IT

Japan

125 VAC, 12 A, 50 Hz or 60 Hz

SS-00259 Type VCTF

CBL-EX-PWR-C13-JP

Korea

250 VAC, 10 A, 50 Hz or 60 Hz

CEE (7) VII Type VIIGK

CBL-EX-PWR-C13-KR

North America

125 VAC, 13 A, 60 Hz

NEMA 5-15 Type N5-15

CBL-EX-PWR-C13-US

South Africa

250 VAC, 10 A, 50 Hz

SABS 164/1:1992 Type ZA/3

CBL-EX-PWR-C13-SA

Switzerland

250 VAC, 10 A, 50 Hz

SEV 6534-2 Type 12G

CBL-EX-PWR-C13-SZ

No graphic available

Taiwan

125 VAC, 10 A, 50 Hz

NEMA 5-15P Type N5-15P

CBL-EX-PWR-C13-TW

United Kingdom

250 VAC, 10 A, 50 Hz

BS 1363/A Type BS89/13

CBL-EX-PWR-C13-UK

Table 8 lists the AC power cords specifications provided for the 1050-W and 1600-W power supplies for each country or region.

Table 8: AC Power Cord Specifications for 1050-W and 1600-W Power Supplies for EX4400-24P, EX4400-24MP, EX4400-48P, and EX4400-48MP Switches

Country/Region

Electrical Specifications

Plug Standards

Juniper Model Number

Argentina

250 VAC, 10 A, 50 Hz

IRAM 2073 Type RA/3

CBL-PWR-C15M-HITEMP-AR

Australia

250 VAC, 10 A, 50 Hz

AS/NZZS 3112-2000 Type SAA/3

CBL-PWR-C15M-HITEMP-AU

Brazil

250 VAC, 10 A, 50 Hz

NBR 14136 Type BR/3

CBL-PWR-C15M-HITEMP-BR

China

250 VAC, 10 A, 50 Hz

GB2099, GB1002 Type PRC/3

CBL-PWR-C15M-HITEMP-CH

Europe (except Italy, Switzerland, and United Kingdom)

250 VAC, 10 A, 50 Hz

CEE (7) VII Type VIIG

CBL-PWR-C15M-HITEMP-EU

Israel

250 VAC, 10 A, 50 Hz

SI 32 Type IL/3G

CBL-PWR-C15M-HITEMP-IL

India

250 VAC, 10 A, 50 Hz

SABS 164/1:1992 Type ZA/3

CBL-PWR-C15M-HITEMP-IN

Italy

250 VAC, 10 A, 50 Hz

CEI 23-16 Type I/3G

CBL-PWR-C15M-HITEMP-IT

Japan

125 VAC, 15 A, 50 Hz or 60 Hz

JIS 8303 Type 498GJ

CBL-PWR-C15M-HITEMP-JP

Korea

250 VAC, 10 A, 50 Hz

CEE (7) VII Type VIIG

CBL-PWR-C15M-HITEMP-KR

South Africa

250 VAC, 10 A, 50 Hz

SABS 164/1:1992 Type ZA/3

CBL-PWR-C15M-HITEMP-SA

North America

125 VAC, 15 A, 60 Hz

NEMA 5-15 Type N5/15

CBL-PWR-C15M-HITEMP-US

Switzerland

250 VAC, 10 A, 50 Hz

SEV 1011 / 6534-2 Type 12G

CBL-PWR-C15M-HITEMP-SZ

United Kingdom

250 VAC, 10 A, 50 Hz

BS 1363/A Type BS89/13

CBL-PWR-C15M-HITEMP-UK

CAUTION:

You must use the AC power cord for the EX4400 switch with this switch only. Do not use the cord with any other product.

CAUTION:

Power cords must not block access to switch components.

PoE-bt Budget Planning

Table 9 lists the PoE-bt power available in an EX4400-24P switch.

Table 9: PoE-bt Power Available in an EX4400-24P Switch
Power Supply Input Voltage Available PoE-bt Power
1 2

1050 W

110 V

783 W

230 V

783 W

1050 W

1050 W

110 V

1806 W

230 V

1806 W

1600 W

110 V

783 W

230 V

1320 W

1600 W

1600 W

110 V

1806 W

230 V

2160 W

Table 10 lists the PoE-bt power available in an EX4400-24P switch if Junos OS Release 22.2R1 or earlier is installed in the switch.

Table 10: PoE-bt Power Available in an EX4400-24P Switch if Junos OS Release 22.2R1 or Earlier is Installed in the Switch

Power Supply

Input Voltage

Available PoE-bt Power

1

2

1050 W

110 V

788 W

230 V

788 W

1050 W

1050 W

110 V

1440 W

230 V

1440 W

Table 11 lists the PoE-bt power available in an EX4400-24MP switch.

Table 11: PoE-bt Power Available in an EX4400-24MP Switch

Power Supply

Input Voltage

Available PoE-bt Power

1

2

1050 W

110 V

753 W

230 V

753 W

1050 W

1050 W

110 V

1776 W

230 V

1776 W

1600 W

110 V

753 W

230 V

1290 W

1600 W

1600 W

110 V

1776 W

230 V

2160 W

Table 12 lists the PoE-bt power available in an EX4400-24MP switch if Junos OS Release 22.2R1 or earlier is installed in the switch.

Table 12: PoE-bt Power Available in an EX4400-24MP Switch if Junos OS Release 22.2R1 or Earlier is Installed in the Switch

Power Supply

Input Voltage

Available PoE-bt Power

1

2

1050 W

110 V

780 W

230 V

780 W

1050 W

1050 W

110 V

1800 W

230 V

1800 W

Table 13 lists the PoE-bt power available in an EX4400-48P switch.

Table 13: PoE-bt Power Available in an EX4400-48P Switch

Power Supply

Input Voltage

Available PoE-bt Power

1

2

1600 W

110 V

773 W

230 V

1310 W

1600 W

1600 W

110 V

1796 W

230 V

2200 W

Table 14 lists the PoE-bt power available in an EX4400-48P switch if Junos OS Release 22.2R1 or earlier is installed in the switch.

Table 14: PoE-bt Power Available in an EX4400-48P Switch if Junos OS Release 22.2R1 or Earlier is Installed in the Switch

Power Supply

Input Voltage

Available PoE-bt Power

1

2

1600 W

110 V

768 W

230 V

1290 W

1600 W

1600 W

110 V

1440 W

230 V

1800 W

Table 15 lists the PoE-bt power available in an EX4400-48MP switch.

Table 15: PoE-bt Power Available in an EX4400-48MP Switch

Power Supply

Input Voltage

Available PoE-bt Power

1

2

1600 W

110 V

723 W

230 V

1260 W

1600 W

1600 W

110 V

1746 W

230 V

2200 W

Table 16 lists the PoE-bt power available in an EX4400-48MP switch if Junos OS Release 22.2R1 or earlier is installed in the switch.

Table 16: PoE-bt Power Available in an EX4400-48MP Switch if Junos OS Release 22.2R1 or Earlier is Installed in the Switch

Power Supply

Input Voltage

Available PoE-bt Power

1

2

1600 W

110 V

750 W

230 V

1300 W

1600 W

1600 W

110 V

1800 W

230 V

2200 W

DC Power Supply in EX4400 Switches

We ship the EX4400 switches with one power supply installed in the rear panel of the switches. You can install up to two power supplies in the switch. You must order the second power supply and a power source cord (part number: CBL-JNP-PWR-DSUB) separately. The power supply slots are numbered 0 and 1 and each slot has a power icon next to it. The power supplies support front-to-back or back-to-front airflow directions. The power supplies are fully redundant, load-sharing, and hot-removable and hot-insertable field-replaceable units (FRUs) when the second power supply is installed and running: You can remove and replace either one of them without powering off the switch or disrupting switch functions.

Do not mix:

  • AC and DC power supplies in the same chassis.

  • Power supplies with different airflow directions in the same chassis.

  • Fan modules with different airflow directions in the same chassis.

  • Power supplies and fan modules with different airflow directions in the same chassis.

This topic describes the DC power supplies that EX4400 switches support.

Characteristics of the DC Power Supply

DC-powered EX4400-24T, EX4400-24X, EX4400-48T, and EX4400-48F switches support 550-W DC power supplies (see Figure 4).

Figure 4: 550 W DC Power Supply for EX4400 Switches 550 W DC Power Supply for EX4400 Switches
  1

Power supply handle

  3

Power supply ejector lever

  2

Power supply inlet

 

Table 17 lists the details of the 550-W DC power supplies used in EX4400 switches.

Table 17: Details of the DC Power Supplies in EX4400 Switches

Details

550-W DC Power Supplies

Model number

  • JPSU-550-C-DC-AFO

  • JPSU-550-C-DC-AFI

Minimum installed in chassis

1

Maximum installed in chassis

2

Power supply status LED

DC.OK

To prevent electrical injury while installing or removing DC power supplies, carefully follow instructions in Install a Power Supply in an EX4400 Switch and Remove a Power Supply from an EX4400 Switch.

Specifications of the DC Power Supplies Used in EX4400 Switches

Table 18 provides the power supply specifications of the 550-W DC power supplies.

Table 19 provides the typical power consumption for the EX4400 switch models.

Table 18: Specifications of the 550-W DC Power Supplies Used in EX4400 Switches

Item

Specification

DC input voltage

Rated operating voltage: –48 VDC through –60 VDC

DC input current rating

13 A

Output power

550 W

Table 19: Typical Power Consumption for the EX4400 Switch Models

Model

Typical Power Consumption

EX4400-24T

95.8 W

EX4400-24X

126 W

EX4400-48T

102.7 W

EX4400-48F

128.6 W

EX4400 DC Power Cable Specification

EX4400 DC power supplies require a D-Sub 3W3- type connector. The three pins on the connector provide –48 VDC input (–), return (+), and ground connections to the power supply.

Note:

Regardless which DC power cable you use, you must connect the EX4400 to earth ground before you connect it to power.

DC power cables, each 4 m (approximately 13.1 ft) long, are supplied with the EX4400 switches. The provided cables include the three-pin connector on one end and three insulated wires at the opposite end, for connection to the site’s DC power distribution system.

EX4400 DC Power Cable Specification lists the specifications for the EX4400 DC power cables.

Table 20: EX4400 DC Power Cable Specifications

Juniper Model

Wire Function

Insulation Color

Wire Size

CBL-JNP-PWR-DSUB (straight cable)

–48 VDC input (–)

Blue

8 AWG (8.4 mm²), 90° C

Return (+)

Black

8 AWG (8.4 mm²), 90° C

Ground

Green and yellow

8 AWG (8.4 mm²), 90° C

CBL-JNP-PWR-DSUB4 (straight cable)

–48 VDC input (–)

Blue

12 AWG (8.4 mm²), 90° C

Return (+)

Black

12 AWG (8.4 mm²), 90° C

Ground

Green and yellow

12 AWG (8.4 mm²), 90° C

Note:

CBL-JNP-PWR-DSUB4 (straight cable) can be separately ordered.

Note:

The connector has 3 pins and the middle one is the Ground.

Warning:

For field-wiring connections, use copper conductors only.

Warning:

Power cables must not block access to components or drape where people could trip on them.

CAUTION:

You must ensure that power connections maintain the proper polarity. The power source cables might be labeled (+) and (–) to indicate their polarity. There is no standard color coding for DC power cables. The color coding used by the external DC power source at your site might be different from the color coding for the leads on the DC power cable provided with the chassis.

DC Power Supply Airflow

Each power supply has its own fan and is cooled by its own internal cooling system. EX4400 switches support power supplies with the following airflow directions:

  • Front-to-back (cold air enters through the vents on the front panel of the switch and hot air exhausts through the vents on the rear panel), indicated by the AIR OUT label and the Juniper Gold handle.

  • Back-to-front (cold air enters through the vents on the rear panel of the switch and hot air exhausts through the vents on the front panel), indicated by the AIR IN label and the Juniper Azure Blue handle.

Table 21 lists the DC power supply models and the direction of airflow in them.

Table 21: Airflow Direction in DC Power Supply Models for EX4400 Switches

Model

Direction of Airflow

JPSU-550-C-DC-AFO

Front-to-back—that is, cold air enters the chassis through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis, indicated by the AIR OUT label and the Juniper Gold handle.

JPSU-550-C-DC-AFI

Back-to-front—that is, cold air enters the chassis through the vents on the rear panel of the chassis and hot air exhausts through the vents on the front panel of the chassis, indicated by the AIR IN label and the Juniper Azure Blue handle.

Power Supply LEDs in EX4400 Switches

The power supplies for EX4400 switches have one LED that indicates its state.

  • Figure 5 shows the LED on the 550-W AC power supply for EX4400 switches.

  • Figure 6 shows the LED on the 1050-W AC power supply for EX4400 switches.

  • Figure 7 shows the LED on the 1600-W AC power supply for EX4400 switches.

  • Figure 8 shows the LED on the 550-W DC power supply for EX4400 switches.

Figure 5: LED on the 550-W AC Power Supply for EX4400 SwitchesLED on the 550-W AC Power Supply for EX4400 Switches
  1

Power supply LED

 
Figure 6: LED on the 1050-W AC Power Supply for EX4400 SwitchesLED on the 1050-W AC Power Supply for EX4400 Switches
  1

Power supply LED

 
Figure 7: LED on the 1600-W AC Power Supply for EX4400 SwitchesLED on the 1600-W AC Power Supply for EX4400 Switches
  1

Power supply LED

 
Figure 8: LED on the 550-W DC Power Supply for EX4400 SwitchesLED on the 550-W DC Power Supply for EX4400 Switches
  1

Power supply LED

 

Table 22 describes the power supply LED.

Table 22: Power Supply LED in EX4400 Switches

Color

State

Description

Green

On steadily

The power supply is receiving input and is providing proper output to the switch.

Blinking

The fan in the power supply has failed or there is an internal communication failure in the power supply; you must replace it.

Unlit

Indicates one of the following:

  • The power cord might not be installed properly.

  • The power supply is not receiving power correctly. Verify that the input voltage range is correct.

  • The power supply is in standby mode.

  • The ambient temperature is high and the power supply has shut down. Ensure that the temperature is between 32° F and 113° F (between 0° C and 45° C).

  • There is a critical failure in the power supply and it has shut down. You must replace it.