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MX301 Power System

The MX301 power system includes AC, DC, and HVAC/DC power supply units (PSUs) with related power cords and cables. The PSUs operate within certain ranges and are equipped with status indicator LEDs.

The MX301 uses two 850-W AC, DC, or HVAC/DC PSUs with support for 1+1 redundancy. The PSUs are preinstalled at the factory. The PSUs in the MX301 are hot-insertable and hot-removable field-replaceable units (FRUs). If one PSU fails, you can replace it without powering off or disrupting the routing function. The other PSU balances the electrical load without interruption. A fan in each PSU provides cooling. The PSUs are located at the rear of the MX301.

The MX301 supports the following PSUs:

CAUTION:

Avoid mixing:

  • AC and DC PSUs in the same chassis.

  • PSUs with different ratings in the same chassis.

  • PSUs with different airflow directions in the same chassis.

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

The maximum and typical power consumption of the system depends on the type of power supply.

JPSU-850W-AC-AFO

JPSU-850W-AC-AFO

Figure 1 shows the location of the PSUs on the back panel.

Figure 1: MX301 Rear Panel with AC PSUs MX301 Rear Panel with AC PSUs
  1

Grounding point

  3

AC PSU (2 units)

  2

Fan modules (6 units)

Figure 2 shows the components on the JPSU-850-AC-AFO PSU.

Figure 2: JPSU-850W-AC-AFO PSU (Front view) JPSU-850W-AC-AFO PSU (Front view)

Table 1 describes the components on the JPSU-850W-AC-AFO.

Table 1: Components on the JPSU-850W-AC-AFO PSU (Front View)
Callout Name

1

Handle

2

Power inlet

3

Power cord retainer

4

Release latch

5

Power status LEDs

Figure 3 shows the components on the JPSU-850W-AC-AFO PSU in isometric view.

Figure 3: JPSU-850W-AC-AFO PSU (Isometric View) JPSU-850W-AC-AFO PSU (Isometric View)

Table 2 describes the components on the JPSU-850W-AC-AFO in isometric view.

Table 2: Components on the JPSU-850W-AC-AFO PSU (Isometric View)
Callout Name

1

Power cord retainer

2

Handle

3

Release latch

4

Power inlet

JPSU-850W-AC-AFO Specifications

Table 3 lists the physical specifications of the JPSU-850W-AC-AFO PSU. The power specifications are listed in Table 4.

Table 3: Physical Specifications
Specification Value

Height

1.73 in. (4.4 cm)

Width

2.14 in. (5.45 cm)

Depth

13 in. (33 cm)

Weight

2.26 lb (1.025 kg) per unit

Airflow

AFO

Table 4: Electrical Specifications
Specification Value

Maximum power output

850 W

AC input voltage

Operating ranges:

  • 85 VAC through 132 VAC

    Typical: 120 VAC

  • 170 VAC through 264 VAC

    Typical: 230 VAC

AC input current rating

  • 10 A through 6.4 A @ 85 VAC through 132 VAC

    Typical: 7 A @ 120 VAC

  • 5 A through 3.2 A @ 170 VAC through 264 VAC

    Typical: 3.7 A @ 230 VAC

AC input line frequency

Typical: 50 Hz through 60 Hz

Circuit breaker rating

The overcurrent protection for the device is provided by the building installation. Ensure that the branch circuit breaker is rated at no more than 16 A in the EU, 20 A in the USA, or as required by the local code.

JPSU-850W-AC-AFO LEDs

Each JPSU-850W-AC-AFO has three status LEDs on the PSU faceplate (see Figure 4).

Figure 4: JPSU-850W-AC-AFO LEDs JPSU-850W-AC-AFO LEDs

Table 5 describes the JPSU-850W-AC-AFO PSU status LEDs.

Table 5: JPSU-850W-AC-AFO Status LEDs Description
Callout Label LED Color LED State Description
1 AC (input)

Unlit

Off

The PSU is disconnected from the power source or the PSU is not receiving power.

Green On Steadily

The PSU is receiving power.

2 DC (output)

Unlit

Off

The PSU is experiencing overcurrent or power limit.

Green

On Steadily

The PSU is sending out power correctly.

3 ! (Fault)

Amber

On Steadily

An error has been detected in the PSU. Replace the PSU as soon as possible.

To maintain proper airflow through the chassis, leave the PSU installed in the chassis until you are ready to replace it.

Note:
  • If the AC LED and DC LED are unlit, either the AC power cord is not installed properly or the PSU fuse has failed.

  • If the AC LED is lit green and DC LED is unlit, the AC PSU is installed properly, but the PSU is off in a 5 Voltage Standby (VSB) mode.

  • If the AC LED is lit green, DC LED is unlit, and the ! fault LED is lit amber, the PSU has shut down due to a failure.

You can get additional information about the status of the PSUs using the show chassis power command and the show chassis power detail command. Here are some examples of the CLI output:

MX301 with Two AC PSUs

Supported AC Power Cords on the JPSU-850W-AC-AFO

A detachable AC power cord is supplied with the AC PSUs. The coupler is type C19 as described by the International Electrotechnical Commission (IEC) standard 60320. Table 6 lists the default power cord that is provided for each country. The plug end of the power cord fits into the power source outlet that is standard for your geographical location.

CAUTION:

The AC power cord provided with each PSU is intended for use with that PSU only and not for any other use.

Note:

In North America, AC power cords must not exceed 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 supplied with the router are in compliance with these requirements.

Table 6: Supported AC Power Cords
Country/Geographical Region Cord Set Rating Plug Standard Spare Juniper Model Number

Argentina

250 VAC, 10 A, 50 Hz

IRAM2073

CBL-EX-PWR-C13-AR

Australia

250 VAC, 10 A, 50 Hz

AS/NZ 3109-1996

CBL-EX-PWR-C13-AU

Brazil

250 VAC, 10 A, 50 Hz

NBR 14136 Type BR/3

CBL-EX-PWR-C13-BR

China

250 VAC, 10 A, 50 Hz

GB 1002-1996

CBL-EX-PWR-C13-CH

Europe

250 VAC, 10 A, 50 Hz

CEE (7) VII

CBL-EX-PWR-C13-EU 

India

250 VAC, 10 A, 50 Hz

IS 1293

CBL-EX-PWR-C13-IN

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/VII

CBL-EX-PWR-C13-IT

Japan

125 VAC, 12 A, 50 Hz or 60 Hz

JIS C8303

CBL-EX-PWR-C13-JP

North America

125 VAC, 13 A, 60 Hz

250 VAC, 13 A, 60 Hz

250 VAC, 13 A, 60 Hz

CAN/CSA No. 49-92

NEMA L6-15

NEMA 6-15

CBL-EX-PWR-C13-US

South Africa/India

250 VAC, 10 A, 50 Hz

SABS 164/1:1992 Type ZA/3

CBL-EX-PWR-C13-SA

South Korea

250 VAC, 10 A, 60 Hz; 250 VAC, 13 A, 60 Hz

KSC 8305; K60884-1

CBL-EX-PWR-C13-KR

Switzerland

250 VAC, 10 A, 50 Hz

SEV 1011 SEV 1991; EN 60320 C13

CBL-EX-PWR-C13-SZ

Taiwan

125 VAC, 11 A and 15 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

CBL-EX-PWR-C13-UK

JPSU-850W-DC-AFO

JPSU-850W-DC-AFO

Figure 5 shows the location of the PSUs on the rear panel.

Figure 5: MX301 Rear Panel with DC PSUs MX301 Rear Panel with DC PSUs
  1

Grounding point

  3

DC PSU (2 units)

  2

Fan modules (6 units)

Figure 6 shows the components on the JPSU-850W-DC-AFO PSU.

Figure 6: JPSU-850W-DC-AFO PSU (Front View) JPSU-850W-DC-AFO PSU (Front View)

Table 7 describes the components on the JPSU-850W-DC-AFO.

Table 7: Components on the JPSU-850W-DC-AFO PSU (Front View)
Callout Name

1

Handle

2

Terminal block cover

3

Release latch

4

Power status LEDs

Figure 7 shows the components on the JPSU-850W-DC-AFO PSU in isometric view.

Figure 7: JPSU-850W-DC-AFO PSU (Isometric View) JPSU-850W-DC-AFO PSU (Isometric View)

Table 8 describes the components on the JPSU-850W-DC-AFO in isometric view.

Table 8: Components on the JPSU-850W-DC-AFO PSU (Isometric View)
Callout Name

1

Terminal block cover

2

Handle

3

Release latch

JPSU-850W-DC-AFO Specifications

Table 9 lists the physical specifications of the JPSU-850W-DC-AFO PSU. The power specifications are listed in Table 10.

Table 9: Physical Specifications
Specification Value

Height

1.73 in. (4.4 cm)

Width

2.14 in. (5.45 cm)

Depth

13 in. (33 cm)

Weight

2.16 lb (0.98 kg) per unit

Airflow

AFO

Table 10: Electrical Specifications
Specification Value

Maximum power output

850 W

DC input voltage

-40 VDC through -72 VDC

Typical: -48 VDC

DC input current rating

21 A through 11 A @ -40 VDC through -72 VDC

Typical: 18 A @ -48 VDC

Circuit breaker rating

30 A

Note:

We recommend that you connect each DC PSU unit to a dedicated DC power source with an output voltage range between -40 VDC through -72 VDC. The wiring from the dedicated DC power source that connects to the DC PSU unit must be within the same building.

JPSU-850W-DC-AFO LEDs

Each JPSU-850W-DC-AFO has three status LEDs on the PSU faceplate (see Figure 8).

Figure 8: JPSU-850W-DC-AFO LEDs JPSU-850W-DC-AFO LEDs

Table 11 describes the JPSU-850W-DC-AFO PSU status LEDs.

Table 11: JPSU-850W-DC-AFO Status LEDs Description
Callout Label LED Color LED State Description
1 IN (DC input)

Unlit

Off

The PSU is disconnected from the power source or the PSU is not receiving power.

Green On Steadily

The PSU is receiving power.

2 OUT (DC output)

Unlit

Off

The PSU is experiencing overcurrent or power limit.

Green

On Steadily

The PSU is sending out power correctly.

3 ! (Fault)

Amber

On Steadily

An error has been detected in the PSU. Replace the PSU as soon as possible.

To maintain proper airflow through the chassis, leave the PSU installed in the chassis until you are ready to replace it.

You can get additional information about the status of the PSUs using the show chassis power command and the show chassis power detail command. Here are some examples of the CLI output:

MX301 with Two DC PSUs

DC Power Cable Specifications

You must supply four DC power cables that meet the following specifications: 14-16 AWG (2.08 - 1.3 mm2), minimum 60° C wire, or as required by the local code. The accessory box shipped with the router includes the cable lugs that attach to the terminal of each PSU.

Figure 9: DC Power Cable Lug DC Power Cable Lug

JPSU-850W-HV-AFO

JPSU-850W-HV-AFO

Figure 10 shows the location of the PSUs on the back panel.

Figure 10: MX301 Rear Panel with HVAC/DC PSUs MX301 Rear Panel with HVAC/DC PSUs
  1

Grounding point

  3

HVAC/DC PSU (2 units)

  2

Fan modules (6 units)

Figure 11 shows the components on the JPSU-850W-HV-AFO PSU.

Figure 11: JPSU-850W-HV-AFO PSU (Front View) JPSU-850W-HV-AFO PSU (Front View)

Table 12 shows the components on the JPSU-850W-HV-AFO PSU.

Table 12: Components on the JPSU-850W-HV-AFO PSU (Front View)
Callout Name

1

Handle

2

Power inlet

3

Release latch

4

Power status LEDs

Figure 12 shows the components on the JPSU-850W-HV-AFO PSU in isometric view.

Figure 12: JPSU-850W-HV-AFO PSU (Isometric View) JPSU-850W-HV-AFO PSU (Isometric View)

Table 13 shows the components on the JPSU-850W-HV-AFO PSU in isometric view.

Table 13: Components on the JPSU-850W-HV-AFO PSU (Isometric View)
Callout Name

1

Power inlet

2

Handle

3

Release latch

JPSU-850W-HV-AFO Specifications

Table 14 lists the physical specifications of the JPSU-850W-HV-AFO PSU. The power specifications are listed in Table 15.

Table 14: Physical Specifications
Specification Value

Height

1.73 in. (4.4 cm)

Width

2.14 in. (5.45 cm)

Depth

13 in. (33 cm)

Weight

2.21 lb (1.005 kg) per unit

Airflow

AFO

Table 15: Electrical Specifications
Specification Value

Maximum power output

850 W

Input voltage

HVAC

  • 90 VAC through 140 VAC

    Typical: 100 VAC through 127 VAC

  • 180 VAC through 305 VAC

    Typical: 200 VAC through 277 VAC

HVDC

  • 190 DC through 400 DC

    Typical: 240 DC through 380 DC

Input current rating

AC

  • Maximum: 11 A @ 140 VAC

  • Maximum: 5.5 A @ 305 VAC

DC

  • Maximum: 5.5 A @ 400 VAC

Input line frequency for AC input

50 Hz through 60 Hz

Circuit breaker rating

HVAC

  • 15 A @ 90 VAC through 140 VAC

  • 10 A @ 190 VAC through 305 VAC

HVDC

  • 10 A

JPSU-850W-HV-AFO LEDs

Each JPSU-850W-HV-AFO has three status LEDs on the PSU faceplate (see Figure 13).

Figure 13: JPSU-850W-HV-AFO LEDs JPSU-850W-HV-AFO LEDs

Table 16 describes the JPSU-850W-AC-AFO PSU status LEDs.

Table 16: JPSU-850W-HV-AFO Status LEDs Description
Callout Label LED Color LED State Description
1 AC (input)

Unlit

Off

The PSU is disconnected from power source or the PSU is not receiving power.

Green On Steadily

The PSU is receiving power.

2 DC (output)

Unlit

Off

The PSU is experiencing overcurrent or power limit.

Green

On Steadily

The PSU is sending out power correctly.

3 ! (Fault)

Amber

On Steadily

An error has been detected in the PSU. Replace the PSU as soon as possible.

To maintain proper airflow through the chassis, leave the PSU installed in the chassis until you are ready to replace it.

You can get additional information about the status of the PSUs using the show chassis power command and the show chassis power detail command. Here are some examples of the CLI output:

MX301 with Two HVAC/DC PSUs

Supported Power Cords on the JPSU-850W-HV-AFO

Table 17 lists the specifications of the power cord for the high-voltage PSUs provided for countries and regions.

CAUTION:

The power cord provided with each PSU is intended for use with that PSU only and not for any other use.

Note:

In North America, AC power cords must not exceed 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 supplied with the router are in compliance.

Table 17: Specifications of the Power Cords for the High-Voltage PSUs
Country/Geographical Region Cord Set Rating Plug Standard Spare Juniper Model Number Graphic

Argentina

16 A, 250 VAC

IRAM 2073 Type RA/3

CBL-JNP-SG4-AR

Australia and New Zealand

15 A, 250 VAC

AS/NZS 4417

CBL-JNP-SG4-AU

Brazil

16 A, 250 VAC

NBR 14136 Type BR/3

CBL-JNP-SG4-BR

China

16 A, 250 VAC

GB2099

CBL-JNP-SG4-CH

Great Britain

13 A, 250 VAC

BS1363

CBL-JNP-SG4-UK

India

16 A, 250 VAC

SANS 164-1

CBL-JNP-SG4-SA

Israel

16 A, RA, 250 VAC

SI 32/1971 Type IL/3G

CBL-JNP-SG4-IL

Italy

16 A, 250 VAC

CEI 23-16

CBL-JNP-SG4-IT

North America

16 A, 250 VAC

Locking NEMA L6-20P

CBL-JNP-SG4-US-L

16 A, 250 VAC

NEMA 6-20P

CBL-JNP-SG4-US

15 A, 277 V

NEMA I7-20P

CBL-JNP-SG4-HVAC

South Africa

16 A, 250 VAC

SANS 164-1

CBL-JNP-SG4-SA

Switzerland

16 A, 250 VAC

CEI 23-50

CBL-JNP-SG4-SZ

All countries

16 A, 400 VAC

Anderson/straight to bare wire

CBL-PWR2-BARE

See Figure 14.

The JPSU-850W-HV-AFO PSU uses an Anderson SAF-D power connector for its HVAC/DC PSU power inlet. The cable has an Anderson connector on one end and bare wire on the other. This bare wire can be used to connect to DC power outlet and is shipped without any lug attached.

Figure 14: Straight, Bare Cable with Anderson Connector Straight, Bare Cable with Anderson Connector
  1

Black wire–Return (+)

  3

White wire–Neutral

  2

Green wire-Ground