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PTX10004 Power Planning

Use the information in this topic to calculate the power consumption for the PTX10004 and plan your configuration’s power requirements.

Power Requirements for PTX10004 Components

Table 1 lists the power requirements for different hardware components of a PTX10004 router under typical voltage conditions and optics. For power requirements for chassis configurations, see Power Requirements for PTX10004 Components.

Table 1: Power Requirements for PTX10004 Components

Component

Description

Power Requirements (Watts)

At 25° C

At 46° C

JNP10004-SF3

PTX10004 SIB

325 W

350 W

JNP10004-FAN2

PTX10004 fan tray

450 W

650 W

JNP10K-RE1-E

PTX10004 enhanced RCB

100 W

150 W

PTX10K-LC1201-36CD

36-port QSFP56-DD line card (without optical transceivers)

1600 W

1775 W

PTX10K-LC1202-36MR

36-port line card (thirty-two 100GbE ports and four 400GbE ports).

740 W

750 W

Calculate Power Requirements for a PTX10004 Router

Use the information in this topic to calculate power requirements of your PTX10004 configuration and the number of power supplies required for different PTX10004 router configurations.

CAUTION:

To ensure adequate power and to avoid raising a power alarm, we recommend that you maintain n +1 power supplies in your router at all times. Replace failed power supplies immediately to prevent unexpected failures.

If a new line card is installed in an operational router, power management does not power on the line card if the increased power demand exceeds the total available power, including redundant power. If redundant power is used to power on the line card, a minor alarm is raised, which becomes a major alarm if the condition is not corrected.

Note:

The calculations in this topic represent the maximum power requirements that you need to budget for your PTX10004 router configuration. The actual power consumption of your router will be less than the calculated results shown here and will vary based on the hardware and software configuration of your router, the amount of traffic passing through the line cards, and environmental variables such as room temperature.

Before you begin these calculations:

This topic describes these tasks:

How to Calculate the Power Consumption of Your PTX10004 Configuration

Use the following procedure to determine the maximum power you need to supply to the router. To calculate maximum system power consumption, you first determine the combined maximum internal power requirements of all the router components and then divide this result by the power supply output power.

Note:

The calculations in this topic represent the maximum power requirements that you need to budget for your PTX10004 router configuration. The actual power consumption of your router will be less than the calculated results shown here and will vary based on the hardware and software configuration of your router, the amount of traffic passing through the line cards, and environmental variables such as room temperature.

To calculate maximum system power consumption:

  1. Determine the maximum power consumption of the base chassis components (that is, the components other than the line cards). Use Table 2 if your router is configured as either for the standard base or the redundant configuration.
    Table 2: Chassis Power Consumption for Standard Configurations

    Chassis Component

    BASE3 Configuration

    PREM2 Configuration

    PREM3 Configuration

    Fan tray

    1300 W

    1300 W

    1300 W

    RCB

    150 W

    300 W

    300 W

    SIB

    1050 W

    1400 W

    2100 W

    Total

    2500 W

    3000 W

    3700 W

  2. Calculate the maximum internal power consumption of the entire router by adding in the power requirements of each line card. See Table 3 for a chart of the power needed for line cards.
    Table 3: Line Card Power Consumption

    Number of Line Cards

    PTX10K-LC1201-36CD

    1

    1775 W

    2

    3550 W

    3

    5325 W

    4

    7100 W

    For example, for a PTX10004 with three PTX10K-LC1201-36CD line cards, the maximum power consumption is:

    = 3 (power consumed by PTX10K-LC1201-36CD in watts)

    = 3 (1775 W)

    = 5325 W

  3. Add the power consumption from Step 1 and the total line card consumption from Step 2.

    To continue from the previous example, add the wattage from two PTX10K-LC1201-36CD line cards to a PREM2 configuration.

    (5325 W) + (3000 W)

    = 8325 W required

How to Calculate the Number of Power Supplies Required for Your PTX10004 Configuration

The minimum power configuration for PTX10004 routers is three power supplies. However, using the calculated minimum power configuration doesn’t prevent the system from raising a power alarm. To ensure you don’t log power alarms with a fully loaded chassis, you must configure your router for dual feed and high-power settings.

To calculate the number of power supplies required for your minimum router configuration:

  1. Determine the power available from the power supplies. The power supplies have s a set of three DIP switches on the faceplate that allows you to configure the power supply for either the high power (30 A) or low power (20 A) input mode. Table 4 and Table 5 showsthe power available for the installed power supplies.
    Table 4: Total Power Available

    Power Supply Module Models

    With Two Power Supplies

    With Three Power Supplies

    JNP10K-PWR-AC2 dual feed, high power (30-A) setting

    11,000 W

    16,500 W

    JNP10K-PWR-AC2 single feed, high power (30-A) setting

    10,000 W

    15,000 W

    JNP10K-PWR-AC2, dual feed, low power (20-A) setting

    6,000 W

    9,000 W

    JNP10K-PWR-AC2, single feed, low power (20-A) setting

    5,400 W

    8,100 W

    JNP10K-PWR-DC2 dual feed, high power (80-A) setting

    11,000 W

    16,500 W

    JNP10K-PWR-DC2 dual feed, low power (60-A) setting

    8,800 W

    13,200 W

    JNP10K-PWR-DC2 single feed, high power (80-A) setting

    5,500 W

    8,250 W

    JNP10K-PWR-DC2 single feed, low power (60-A) setting

    4,400 W

    6,600 W

    Table 5: Power Voltages Settings for JNP10K-PWR-AC2 and JNP10K-PWR-DC2 Power Supplies

    INP0 (Switch 1)

    INP1 (Switch 2)

    H/L (High Input/

    Low Input Switch 3)

    Output Power

    JNP10K-PWR-AC2

    On

    On

    On (High 30 A)

    5500 W

    On

    On

    Off (Low 20 A)

    3000 W

    On

    Off

    On (High 30 A)

    5000 W

    Off

    On

    On (High 30 A)

    5000 W

    On

    Off

    Off (Low 20 A)

    2700 W

    Off

    On

    Off (Low20 A)

    2700 W

    JNP10K-PWR-DC2

    On

    On

    On (High 80 A)

    5500 W

    On

    On

    Off (Low 60 A)

    4400 W

    On

    Off

    On (High 80 A)

    2750 W

    Off

    On

    On (High 80 A)

    2750 W

    On

    Off

    Off (Low 60 A)

    2200 W

    Off

    On

    Off (Low 60 A)

    2200 W

    Note:

    If any JNP10K-PWR-AC2 power supply is set to 20 A, then the power budget for all power supplies installed in the system becomes 20 A, regardless of whether other power supplies are set at 30 A. This design is to prevent overloading of the power supply that is set to 20 A. See Table 1 for details on setting the DIP switches.

  2. Determine the total power required for your configuration with line cards installed. The total power available to the chassis is calculated by dividing the wattage needed by the power rating, and then rounding up.

    In the previous examples, we calculated that a PTX10004 AC system requires 8325 W with three PTX10K-LC1201-36CD line cards. In this example, we calculate the total power available for JNP10K-PWR-AC2 power supplies set for dual feed and low power in a PREM2 configuration:

    = (8325 W) / (3000 W) dual input, low power

    = 2.78

    Round up the result to three JNP10K-PWR-AC power supplies. A PREM2 redundant AC system then has sufficient power supplies.

  3. Calculate how much power the power supplies need. To determine the power required, multiply the number of power supplies by the power supply wattage and divide by the efficiency of the power supply. The efficiency rate accounts for the loss of energy within the power supply and is 89 percent for power supplies running in PTX10004 routers.

JNP10K-PWR-AC2 Power Specifications

The JNP10K-PWR-AC2 power supply supports AC, high-voltage alternating current (HVAC), and high-voltage direct current (HVDC).

Table 6 lists the power specifications for the AC power supply (JNP10K-PWR-AC2) used in a PTX10004 chassis.

Table 6: Power Specifications for a JNP10K-PWR-AC2 Power Supply

Specification

Value

AC input voltage

180–305 VAC

DC input voltage

190–410 VDC

Input current rating

28.5 A

DC output power

12.3 V, 5500 W with dual feed and 5000 W with single feed

Table 7 shows the physical specifications for a JNP10K-PWR-AC2 power supply.

Table 7: Physical Specifications for a JNP10K-PWR-AC2 Power Supply

Specification

Value

Height

3.5 in. (8.89 cm)

Width

3.6 in. (9.14 cm)

Depth

15.1 in. (38.35 cm)

Weight

11.4 lb (5.17 kg)

PTX10004 Power Cable Specifications

Most sites distribute power through a main conduit that leads to frame-mounted power distribution panels, one of which can be located at the top of the rack that houses the router. An AC power cord connects each power supply to the power distribution panel.

Note:

In North America, AC power cords must not exceed 15 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 shipped with the router to North America and Canada are in compliance.

The PTX10004 AC, high-voltage alternating current (HVAC), and high-voltage direct current (HVDC) power supplies have specific cord requirements. Use the following sections to determine the cable requirements based on the model of your power supply and any mode settings:

JNP10K-PWR-AC2 Power Cable Specifications

The JNP10K-PWR-AC2 power supply operates in two modes:

Warning:

Do not run JNP10K-PWR-AC2 power supplies using 16-A or 20-A cables if connected to 30-A input.

CAUTION:

You can prevent AC power cables from being exposed to hot air exhaust by always routing the power cables away from the fan trays and power supplies.

Table 8: JNP10K-PWR-AC2 Power Cable Specifications for 20-A Input

Locale

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 3112

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

Europe (except Italy, Switzerland, and United Kingdom)

20 A, 250 VAC

CEE 7/7

CBL-JNP-SG4-EU

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/3C

CBL-JNP-SG4-IL

Italy

16 A, 250 VAC

CEI 23-16

CBL-JNP-SG4-IT

North America

20 A, 250 VAC

3-5958P4 to IEC 60320 C20

CBL-JNP-SG4-C20

16 A, 250 VAC

Locking NEMA L6-20P

CBL-JNP-SG4-US-L

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

JNP10K-PWR-AC2 Power Cable Specifications for 30-A Input

The JNP10K-PWR-AC2 HVAC or HVDC power supplies require a high-current cable assembly when set for 30-A input. One end of the cable has an Anderson APP-400 connector, while the other end of the cable is bare wire. See Figure 1 and Table 9. These cables are separately orderable and are not shipped automatically with JNP10K-PWR-AC2 orders. An example of the right-angle cable and connector is shown in Figure 3.

For connection to AC systems, Juniper provides a cable with either a NEMA 30-A connector (Figure 1) or an IEC 330P6W connector (Figure 2).

Figure 1: NEMA 30-A Locking Connector NEMA 30-A Locking Connector
Figure 2: IEC 330P6W ConnectorIEC 330P6W Connector
Table 9: 30-A Cabling Options

Option

Locale

Cord Set Rating

Plug Standards

Connector

Spare Juniper Model Number

HVAC/HVDC power cord

Any

30 A 400 VAC

UL 950 and IEC 60950

Anderson/straight to bare wire

CBL-PWR2-BARE

Any

30 A 400 VAC

UL 950 and IEC 60950

Anderson/right-angle to bare wire

CBL-PWR2-BARE-RA

AC power cord

Continental Europe

30 A 250 VAC

UL 950 and IEC332P6

Anderson/right-angle to IEC 332P6

CBL-PWR2-332P6W-RA

Continental Europe

30 A 250 VAC

UL 950 and IEC332P6

Anderson/straight to IEC332P6

CBL-PWR2-332P6W

Continental Europe

30 A 240 VAC

IEC330P6

Anderson/right-angle to IEC 330P6

CBL-PWR2-330P6W-RA

Continental Europe

30 A 240 VAC

IEC330P6

Anderson/straight to IEC 330P6

CBL-PWR2-330P6W

North America

30 A 250 VAC

UL 498 and CSA

Anderson/right-angle to L6-30P (NEMA-30A)

CBL-PWR2-L6-30P-RA

North America

30 A 250 VAC

UL 498 and IEC5958P4

Anderson/straight to L6-30P (NEMA-30A)

CBL-PWR2-L6-30P

AC jumper power cord

Any

30 A 400 VAC

UL and CSA

Anderson/straight to Anderson

CG-CBL-APP-400-02

Figure 3: Right-Angle, Bare Cable with Anderson ConnectorRight-Angle, Bare Cable with Anderson Connector
  1

Black wire –“+” or “-” for HVDC and “Hot or neutral” for AC

  3

White wire – “+” or “-” for HVDC and “Hot or neutral” for AC

  2

Green wire - Ground

 

JNP10K-PWR-DC2 Power Specifications

Table 10 lists the power specifications for the high-voltage direct current (HVDC) power supply used in PTX10004 routers.

Table 10: Power Specifications for the JNP10K-PWR-DC2 Power Supply

Item

Specifications

DC input voltage

  • Minimum operating voltage: –40 VDC

  • Nominal operating voltage: –48 VDC

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

DC input current rating

  • 76-A maximum at minimum operating voltage (-40 VDC) with 80-A DIP switch setting and 5500-W output load

  • 64-A maximum at nominal operating voltage (–48 VDC) with 80-A DIP switch setting and 5500-W output load

  • 60-A maximum at minimum operating voltage (-40 VDC) with 60-A DIP switch setting and 4400-W output load

  • 50-A maximum at nominal operating voltage (-48 VDC) with 60-A DIP switch setting and 4400-W output load

Output power

  • 2200 W for low-input (60-A) single feed

  • 4400 W for low-input (60-A) dual feed

  • 2750 W for high-input (80-A) single feed

  • 5500 W for high-input (80-A) dual feed

Table 11 shows the physical specifications for a JNP10K-PWR-DC2 power supply.

Table 11: Physical Specifications of a JNP10K-PWR-DC2 Power Supply

Specification

Value

Height

3.5 in. (8.89 cm)

Width

3.6 in. (9.14 cm)

Depth

16.05 in. (40.77 cm)

Weight

8.1 lb (3.67 kg)

PTX10004 Grounding Cable and Lug Specifications

The router must be adequately grounded before power is connected to ensure proper operation and to meet safety and electromagnetic interference (EMI) requirements. To ground a PTX10004 chassis, connect a grounding cable to earth ground and then attach it to the chassis grounding point on the rear of the chassis beneath.

You must install the PTX10004 in a restricted-access location and ensure that the chassis is always properly grounded. The PTX10004 has a two-hole protective grounding terminal provided on the chassis. Under all circumstances, use this grounding connection to ground the chassis. For AC-powered systems, you must also use the grounding wire in the AC power cord along with the two-hole grounding lug connection. This tested system meets or exceeds all applicable EMC regulatory requirements with the two-hole protective grounding terminal.

Warning:

To comply with GR-1089 requirements, all intrabuilding copper cabling used for SFP+, QSFP+, and higher must be shielded and grounded at both ends.

CAUTION:

Before router installation begins, a licensed electrician must attach a cable lug to the grounding cables that you supply. See Connect the PTX10004 Router to Earth Ground. A cable with an incorrectly attached lug can damage the router.

Before you connectthe router to earth ground, review the following information:

  • Two threaded inserts (PEM nuts) are provided on the lower rear of the chassis to connect the router to earth ground. The protective earthing terminals are spaced at 0.63 in. (16 mm) centers.

  • The grounding lug required is a Panduit LCD6-10A-L or equivalent (provided). The grounding lug accommodates 6 AWG (13.3 mm²) stranded wire. If one or more JNP10K-PWR-DC2 power supplies are installed in the chassis and set for high input (80 A), use the Panduit LCD4-14A-L or equivalent (provided). This lug accommodates 4 AWG (21.1mm²) stranded wire. The 4 AWG (21.1 mm²) stranded wire should be rated 90° C or as permitted by local electrical code.

  • The grounding cable that you provide for a PTX10004 must be the same size as, or heavier than, the input wire of each power supply. Minimum recommendations are 6 AWG (13.3 mm²) stranded copper wire, Class B; 90° C wire, or as permitted by local code.