AC Power Supply in EX4300 Switches

The AC power supply in EX4300 switches is a hot-insertable and hot-removable field-replaceable unit (FRU): You can install it without powering off the switch or disrupting the switching function.

All the EX4300 switches that are powered by AC power supplies, except EX4300-24T-S, EX4300-24P-S, EX4300-32F-S, EX4300-48T-S, EX4300-48P-S, and EX4300-48MP-S switches are shipped with one AC power supply installed in the rear panel of the switches. EX4300-24T-S, EX4300-24P-S, EX4300-32F-S, EX4300-48T-S, EX4300-48P-S, and EX4300-48MP-S switches are not shipped with power supplies; you must order the power supplies separately.

Note:

EX4300 switches except EX4300-48MP and EX4300-48MP-S switches support 350 W, 715 W, and 1100 W AC power supplies. EX4300-48MP and EX4300-48MP-S switches support 715 W, 1100 W, and 1400 W AC power supplies.

This topic describes the AC power supplies.

CAUTION:

Do not mix:

AC and DC power supplies in the same chassis
Power supplies with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.
Fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.
Power supplies and fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same chassis.

Characteristics of an AC Power Supply

The AC power supplies for EX4300 switches are available in 350 W, 715 W, 1100 W, and 1400 W models. Figure 1 shows an AC power supply for EX4300 switches. The AC power supplies support Power over Ethernet (PoE+) in EX4300-24P, EX4300-24P-S, EX4300-48P, EX4300-48P-S, EX4300-48MP, and EX4300-48MP-S models.

Figure 1: AC Power Supply for EX4300 Switches

Table 1 lists the details of the 350 W, 715 W, 1100 W, and 1400 W AC power supplies used in EX4300 switches.

Table 1: Details of the AC Power Supplies in EX4300 Switches
Details		350 W AC Power Supply	715 W AC Power Supply	1100 W AC Power Supply	1400 W AC Power Supply
Model number		JPSU-350-AC-AFO-A JPSU-350-AC-AFI-A	JPSU-715-AC-AFO-A	JPSU-1100-AC-AFO-A	JPSU-1400W-AC-AFO
Field-replaceable unit (FRU) type		Hot-insertable and hot-removable	Hot-insertable and hot-removable	Hot-insertable and hot-removable	Hot-insertable and hot-removable
Power supply weight		2.43 lb (1.1 kg)	2.43 lb (1.1 kg)	2.43 lb (1.1 kg)	3.06 lb (1.39 kg)
Minimum installed in chassis		1	1	1	1
Maximum installed in chassis		2	2	2	2
Power supply slots		Install in power supply slots labeled PSU 0 and PSU 1 in the rear panel of the chassis.	Install in power supply slots labeled PSU 0 and PSU 1 in the rear panel of the chassis.	Install in power supply slots labeled PSU 0 and PSU 1 in the rear panel of the chassis.	Install in power supply slots labeled PSU 0 and PSU 1 in the rear panel of the chassis.
AC appliance Inlet Note: Each AC appliance inlet requires a dedicated AC power feed.	Number	1	1	1	1
	Type	IEC-320-C13	IEC-320-C13	IEC-320-C15	IEC-320-C15
	Rating	2 A Note: EX4300-48MP and EX4300-48MP-S switches do not support this power supply.	EX4300 switches except EX4300-48MP and EX4300-48MP-S switches—11–5 A EX4300-48MP and EX4300-48MP-S switches—10 A	EX4300 switches except EX4300-48MP and EX4300-48MP-S switches—12–6 A EX4300-48MP and EX4300-48MP-S switches—15 A	12–8 A
Fans		Internal	Internal	Internal	Internal
Airflow		Front-to-back, indicated by label AIR OUT (AFO) Back-to-front, indicated by label AIR IN (AFI)	Front-to-back, indicated by label AIR OUT (AFO)	Front-to-back, indicated by label AIR OUT (AFO)	Front-to-back, indicated by label AIR OUT (AFO)
AC power cord retainer		1	1	1	1
Power supply status LEDs		IN OK and OUT OK	IN OK and OUT OK	IN OK and OUT OK	IN OK and OUT OK
Operating range		Low line: 100–120 VAC High line: 200–240 VAC	Low line: 100–120 VAC High line: 200–240 VAC	Low line: 115–120 VAC High line: 200–240 VAC	Low line: 100–140 VAC High line: 200–240 VAC

Note:

In EU countries, Egypt, Nigeria, Saudi Arabia, Serbia, South Korea, and South Africa, you must ensure that the redundant power supply is installed in the switch chassis.

To prevent electrical injury while installing or removing AC power supplies, carefully follow instructions in Installing an AC Power Supply in an EX4300 Switch and Removing an AC Power Supply from an EX4300 Switch.

AC Power Supply Airflow

Each power supply has its own fan and is cooled by its own internal cooling system.

Each power supply has a label AIR OUT (AFO) or AIR IN (AFI) on the faceplate of the power supply that indicates the direction of airflow in the power supply.

Table 2 lists the AC power supply models and the direction of airflow in them.

Table 2: Airflow Direction in AC Power Supply Models for EX4300 Switches
Model	Label on Power Supply	Direction of Airflow
JPSU-350-AC-AFO-A	AIR OUT (AFO)	Front-to-back—that is, air intake to cool the chassis is through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis.
JPSU-350-AC-AFI-A	AIR IN (AFI)	Back-to-front—that is, air intake to cool the chassis is through the vents on the rear panel of the chassis and hot air exhausts through the vents on the front panel of the chassis.
JPSU-715-AC-AFO-A	AIR OUT (AFO)	Front-to-back—that is, air intake to cool the chassis is through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis.
JPSU-1100-AC-AFO-A	AIR OUT (AFO)	Front-to-back—that is, air intake to cool the chassis is through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis.
JPSU-1400W-AC-AFO	AIR OUT (AFO)	Front-to-back—that is, air intake to cool the chassis is through the vents on the front panel of the chassis and hot air exhausts through the vents on the rear panel of the chassis.

N+0 Redundancy Configuration of AC Power Supplies

In an N+0 redundancy configuration, lower priority PoE ports may be impacted if a power supply fails.

Table 3 lists the N+0 power calculation for 24-port EX4300 switches that use 350 W, 715 W, and 1100 W power supplies.

Table 3: N+0 AC Power Calculations for 24-Port EX4300 Switches
Power Supply Rating		Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports Enabled for PoE+
PSU₀	PSU₁	Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports Enabled for PoE+
350 W AC	–	350	350	0	150	200	6
350 W AC	350 W AC	700	665	0	150	515	17
350 W AC	715 W AC	1065	993.5	0	150	720	24
715 W AC	–	715	715	0	150	565	18
715 W AC	715 W AC	1430	1358.5	0	150	720	24
715 W AC	1100 W AC	1815	1705	0	150	720	24
1100 W AC	–	1100	1100	0	150	720	24
1100 W AC	1100 W AC	2200	2090	0	150	720	24
1100 W AC	350 W AC	1450	1340	0	150	720	24

Table 4 lists the N+0 power calculation for 32-port EX4300 switches that use the 350 W power supply.

Note:

32-port EX4300 switches does not support Power over Ethernet (PoE).

Table 4: N+0 AC Power Calculations for 32-Port EX4300 Switches
Power Supply Rating		Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)
PSU₀	PSU₁	Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)
350 W AC	–	350	350	0	164
350 W AC	350 W AC	700	665	0	164

Table 5 lists the N+0 power calculation for 48-port EX4300 switches except EX4300-48MP and EX4300-48MP-S switches that use 350 W, 715 W, and 1100 W power supplies.

Table 5: N+0 AC Power Calculations for 48-Port EX4300 Switches Except EX4300-48MP and EX4300-48MP-S Switches
Power Supply Rating		Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports Enabled for PoE+
PSU₀	PSU₁	Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports Enabled for PoE+
350 W AC	–	350	350	0	175	175	5
350 W AC	350 W AC	700	665	0	175	490	16
350 W AC	715 W AC	1065	993.5	0	175	818	27
715 W AC	–	715	715	0	175	540	18
715 W AC	715 W AC	1430	1358.5	0	175	1183	39
715 W AC	1100 W AC	1815	1705	0	175	1440	48
1100 W AC	–	1100	1100	0	175	925	30
1100 W AC	1100 W AC	2200	2090	0	175	1440	48
1100 W AC	350 W AC	1450	1340	0	175	1165	38

Table 6 lists the N+0 power calculation for EX4300-48MP and EX4300-48MP-S switches that use 715 W, 1100 W, and 1400 W power supplies.

Note:

When operating at low line configuration, the 1400 W power supply operates as 1100 W power supply.

Table 6: N+0 AC Power Calculations for EX4300-48MP and EX4300-48MP-S Switches
Power Supply Rating		Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports Enabled for PoE+	Ports Enabled for PoE++
PSU₀	PSU₁	Total Power (in watts) PSU₀(W) + PSU₁(W)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports Enabled for PoE+	Ports Enabled for PoE++
715 W AC	–	715	679	0	300	379	12	3
715 W AC	715 W AC	1430	1358	0	300	1058	35	11
715 W AC	1100 W AC	1815	1615	0	300	1315	43	13
715 W AC	1400 W AC	2115	1615	0	300	1315	43	13
1100 W AC	–	1100	1045	0	300	745	24	7
1100 W AC	1100 W AC	2200	1670	0	300	1370	45	14
1100 W AC	1400 W AC	2500	1670	0	300	1370	45	14
1400 W AC	–	1400 W AC	1330	0	300	1030	34	10
1400 W AC	1400 W AC	2800	2000	0	300	1700	48	17

N+N Redundancy Configuration of AC Power Supplies

You can configure your switch for N+N redundancy, in which N power supplies can be removed or fail and the remaining N power supplies continue to supply power to the switch without interruption.

Table 7 lists the N+N power calculation for 24-port EX4300 switches that use 350 W, 715 W, and 1100 W power supplies.

Table 7: N+N AC Power Calculations for 24-Port EX4300 Switches
Power Supply Rating		Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports enabled for PoE+
PSU₀	PSU₁	Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports enabled for PoE+
350 W AC	–	350	350	0	150	200	6
350 W AC	350 W AC	700	350	350	150	200	6
350 W AC	715 W AC	1065	350	350	150	200	6
715 W AC	–	715	715	0	150	565	18
715 W AC	715 W AC	1430	715	715	150	565	18
715 W AC	1100 W AC	1815	715	715	150	565	18
1100 W AC	–	1100	1100	0	150	720	24
1100 W AC	1100 W AC	2200	1100	1100	150	720	24
1100 W AC	350 W AC	1450	350	350	150	200	6

Table 8 lists the N+N power calculation for 32-port EX4300 switches that use 350 W power supplies.

Note:

32-port EX4300 switches does not support Power over Ethernet (PoE).

Table 8: N+N AC Power Calculations for 32-Port EX4300 Switches
Power Supply Rating		Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)
PSU₀	PSU₁	Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)
350 W AC	–	350	350	0	177
350 W AC	350 W AC	700	350	350	177

Table 9 lists the N+N power calculation for 48-port EX4300 switches except EX4300-48MP and EX4300-48MP-S switches that use 350 W, 715 W, and 1100 W power supplies.

Table 9: N+N AC Power Calculations for 48-Port EX4300 Switches Except EX4300-48MP and EX4300-48MP-S Switches
Power Supply Rating		Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports enabled for PoE+
PSU₀	PSU₁	Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports enabled for PoE+
350 W AC	–	350	350	0	175	175	5
350 W AC	350 W AC	700	350	350	175	175	5
350 W AC	715 W AC	1065	350	350	175	175	5
715 W AC	–	715	715	0	175	540	18
715 W AC	715 W AC	1430	715	715	175	540	18
715 W AC	1100 W AC	1815	715	715	175	540	18
1100 W AC	–	1100	1100	0	175	925	30
1100 W AC	1100 W AC	2200	1100	1100	175	925	30
1100 W AC	350 W AC	1450	350	350	175	175	5

Table 10 lists the N+N power calculation for EX4300-48MP and EX4300-48MP-S switches that use 715 W, 1100 W, and 1400 W power supplies.

Note:

When operating at low line configuration, the 1400 W power supply operates as 1100 W power supply.

Table 10: N+N AC Power Calculations for EX4300-48MP and EX4300-48MP-S Switches
Power Supply Rating		Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports enabled for PoE+	Ports enabled for PoE++
PSU₀	PSU₁	Total Power (in watts)	Usable System Power (in watts)	Backup Power (in watts)	Base Power (in watts)	Available PoE Power (in watts)	Ports enabled for PoE+	Ports enabled for PoE++
715 W AC	–	715	679	0	300	379	12	3
715 W AC	715 W AC	1430	679	679	300	379	12	3
715 W AC	1100 W AC	1815	679	679	300	379	12	3
715 W AC	1400 W AC	2115	679	679	300	379	12	3
1100 W AC	–	1100	1045	0	300	745	24	7
1100 W AC	1100 W AC	2200	1045	1045	300	745	24	7
1100 W AC	1400 W AC	2500	1045	1045	300	745	24	7
1400 W AC	–	1400	1330	0	300	1030	34	10
1400 W AC	1400 W AC	2800	1330	1330	300	1030	34	10

ON THIS PAGE

AC Power Supply in EX4300 Switches

Characteristics of an AC Power Supply

AC Power Supply Airflow

N+0 Redundancy Configuration of AC Power Supplies

N+N Redundancy Configuration of AC Power Supplies