EX4400 Power System

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, EX4400-48T, 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 and EX4400-48P models.

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

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

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

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
EX4400-48T	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, EX4400-48T, 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
North America	250 VAC, 15 A, 60 Hz	NEMA 6-15 Type N6/15	CBL-PWR-C15M-HITEMP-US (250)
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:

The AC power cord for the EX4400 switch is intended for use 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

Characteristics of the DC Power Supply

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

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: TypicalPower Consumption for the EX4400 Switch Models

Model	Typical Power Consumption
EX4400-24T	95.8 W
EX4400-48T	102.7 W
EX4400-48F	128.6 W

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

Table 20: 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.