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MX10004 Power System Maintenance

SUMMARY Maintaining a Juniper Networks MX10004 router includes replacing power supplies. Replacing includes removing a failed power supply and installing a functional power supply.

The MX10004 routers support AC, DC, high-voltage alternating current (HVAC), and high-voltage direct current (HVDC) power supplies. All power supply models are hot-insertable and hot-removeable field-replaceable units (FRUs). You can install up to three power supplies in the rear of the chassis in the slots provided along the left side.

The following topics describe how to install and remove the power supplies in an MX10004.

CAUTION:

Use the same type of power supply in all slots. Do not mix power supply models in the same chassis.
Note:

See the heat symbol . Wear heat-resistant hand gloves while accessing the fan tray and power supply.

Install a JNP10K-PWR-AC3 Power Supply

CAUTION:

Use the same type of power supply in all slots. Do not mix power supply models in a production chassis. The only time you are allowed to have two models concurrently running in a system is when you are in the process of swapping out all JNP10K-PWR-AC power supplies with all JNP10K-PWR-AC3 power supplies.
Warning:

Protect yourself from severe burns by wearing heat-protective gloves when removing a running JNP10K-PWR-AC3 power supply from the chassis. The power supply can reach temperatures between 158° F to 176° F (70° C to 80° C) under running conditions.

Before you install a JNP10K-PWR-AC3 power supply in the chassis:

  • Ensure that you have followed all safety warnings and cautions.

  • Ensure that you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • If the AC power source outlets have a power switch, set them to the off (O) position. Ensure that you have the following parts and tools available to install the JNP10K-PWR-AC3 power supply:

    • Electrostatic discharge (ESD) grounding strap

    • Phillips (+) screwdriver, number 1

    • Power cables appropriate for your geographical location (for low-voltage installations) or input amperage (for high-voltage installations). See PTX10004 Power Cable Specifications.

To install a JNP10K-PWR-AC3 power supply in a MX10004:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to an ESD point on the chassis. There is an ESD point located next to the protective earthing terminal and below PSU 2 on the rear of the MX10004 (see Figure 1).
    Figure 1: ESD Point on the Rear of the MX10004 ESD Point on the Rear of the MX10004
      1
    —

    ESD point

    		 
  2. Taking care not to touch power supply connections; remove the power supply from its bag.
  3. Ensure that the power switch is set to the standby (O) position. This switch turns off the output voltage; it doesn’t interrupt input power.
  4. Unscrew the captive screw in the counterclockwise direction by using the Phillips (+) screwdriver, number 1.
  5. Rotate the captive screw away from the faceplate of the power supply to release the latch.
    Note:

    You can install the power supplies in any slot labeled PSU 0 through PSU 2 (top to bottom) on a PTX10004.
  6. Using both hands, place the power supply in the power supply slot on the rear of the system. Slide the power supply straight into the chassis until the power supply is fully seated in the slot. Ensure that the power supply faceplate is flush with any adjacent power supply faceplates or power supply covers (see Install a JNP10K-PWR-AC3 Power Supply).
    Figure 2: Install a JNP10K-PWR-AC3 Install a JNP10K-PWR-AC3
  7. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
  8. Tighten the captive screw by turning it clockwise by using the Phillips (+) screwdriver, number 1. When the screw is completely tight, the latch locks into the router chassis.
  9. Attach each power cable to a dedicated power source (A0, B0, A1, and B1). The JNP10K-PWR-AC3 only requires that each power supply be connected to a separate source.
    1. When installing the right angle power cords, the left column of inputs (A0 and B0) should be connected first. After connecting the A0 and/or B0 inputs, secure the plugs using the retainer (SKU#540-175625) for the A0 plug and retainer (SKU#540-175626) for the B0 plug. The retainers are attached to the PSU faceplate with a single captive fastener using a #1 Philips screws drive. See Figure 3.
      Figure 3: Plug Retainers for A0 and B0 Inputs Plug Retainers for A0 and B0 Inputs
    2. Next connect the right column of inputs (A1 and B1). After connecting the A1 and/or B1 inputs, secure the plugs using the retainers (SKU#540-175627). The right column plug retainer is attached to the PSU faceplate with two captive screws using a #1 Philips screwdriver. See Figure 4.
      Figure 4: Plug Retainers for A1 and B1 Inputs Plug Retainers for A1 and B1 Inputs
    1. If you want to use straight power cords, you may connect the straight power cords in any order. After connecting the straight power cords, secure the plugs with the retainer (SKU#540-175624). The retainer is attached to the PSU faceplate with three captive fasteners using a #1 Philips screw driver. See Figure 5
      Figure 5: Connecting Straight Power Cords Connecting Straight Power Cords
    Note:

    Installing baffle is optional, and only to be used when you want to redirect the air flow from the left side of the PSU to the rear of the router. This ensures NEBs compliance.

    The baffle should be installed before the power supply is inserted int the router. See Figure 6
    Figure 6: Installing Baffle in JNPR10K-PWR-AC3 Installing Baffle in JNPR10K-PWR-AC3
  10. For each power cable, insert the end of the cable with C21 connector into the JNP10K-PWR-AC3 power supply. Use the retainers to keep the power cord in its place in the power supply. See Figure 7
    Figure 7: Installing a JNPR10K-PWR-AC3 using RA Power Cords with Baffle Installing a JNPR10K-PWR-AC3 using RA Power Cords with Baffle
    Warning:

    Ensure that the power cords do not block access to router components or drape where people can trip on them.
  11. If the AC power source outlets have a power switch, set them to the On (|) position.
  12. Set the five DIP switches to set the inputs and whether the power supply is running at 3000 W, 6000 W, or 7800 W. See Table 1.
    Table 1: DIP Switch Settings for JNP10K-PWR-AC3 Power Supply

    INP-A0 (Switch 0)

    INP-A1 (Switch 1)

    INP-B0 (Switch 2)

    INP-B1 (Switch 3)

    Switch 4 (High Input 20 A/Low Input 15 A)

    Output Power

    15-A

    Off

    Off

    Off

    On

    Off (15 A)

    2500 W

    Off

    Off

    On

    Off

    Off (15 A)

    2500 W

    Off

    Off

    On

    On

    Off (15 A)

    5000 W

    Off

    On

    Off

    Off

    Off (15 A)

    2500 W

    Off

    On

    Off

    On

    Off (15 A)

    5000 W

    Off

    On

    On

    On

    Off (15 A)

    7500 W

    Off

    On

    On

    Off

    Off (15 A)

    5000 W

    On

    Off

    Off

    Off

    Off (15 A)

    2500 W

    On

    Off

    Off

    On

    Off (15 A)

    5000 W

    On

    Off

    On

    Off

    Off (15 A)

    5000 W

    On

    Off

    On

    On

    Off (15 A)

    7500 W

    On

    On

    Off

    Off

    Off (15 A)

    5000 W

    On

    On

    Off

    On

    Off (15 A)

    7500 W

    On

    On

    On

    Off

    Off (15 A)

    7500 W

    On

    On

    On

    On

    Off (15 A)

    7800 W

    20-A

    Off

    Off

    Off

    On

    On (20 A)

    3000 W

    Off

    Off

    On

    Off

    On (20 A)

    3000 W

    Off

    Off

    On

    On

    On (20 A)

    6000 W

    Off

    On

    Off

    Off

    On (20 A)

    3000 W

    Off

    On

    Off

    On

    On (20 A)

    6000 W

    Off

    On

    On

    Off

    On (20 A)

    6000 W

    Off

    On

    On

    On

    On (20 A)

    7800 W

    On

    Off

    Off

    Off

    On (20 A)

    3000 W

    On

    Off

    Off

    On

    On (20 A)

    6000 W

    On

    Off

    On

    Off

    On (20 A)

    6000 W

    On

    Off

    On

    On

    On (20 A)

    7800 W

    On

    On

    Off

    Off

    On (20 A)

    6000 W

    On

    On

    Off

    On

    On (20 A)

    7800 W

    On

    On

    On

    Off

    On (20 A)

    7800 W

    On

    On

    On

    On

    On (20 A)

    7800 W
  13. If the AC power source outlet has a power switch, turn it off before plugging in the AC power cord to the power outlet.
  14. Verify that the INP A0, INP A1, INP B0, and INP B1 LEDs on the power supply faceplate are lit and are On steadily.
  15. Press the power switch to the On (|) position.

Remove a JNP10K-PWR-AC3 Power Supply

Before you remove a JNP10K-PWR-AC3 power supply from the chassis:

  • Ensure that you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you have the following parts and tools available:

    • Heat-protective gloves able to withstand temperatures of 158°F (70°C)

    • Electrostatic discharge (ESD) grounding strap

    • Phillips (+) screwdriver, number 1

    • Replacement power supply or a cover for the power supply slot

Warning:

Protect yourself from severe burns by wearing heat-protective gloves when removing a working JNP10K-PWR-AC3 power supply from the chassis. These power supplies can reach temperatures between 158°F and 176°F (70°C to 80°C) under running conditions.
CAUTION:

Before you remove a power supply, ensure that you have power supplies sufficient to power the router left in the chassis. See Power Requirements for MX10004 Components.
CAUTION:

Do not leave the power supply slot empty for a long time while the router is operational. Either replace the power supply promptly or install a ABPM or a cover over the empty slot.

To remove a JNP10K-PWR-AC3 power supply from a MX10004 router:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to an ESD point on the chassis. There is an ESD point located next to the protective earthing terminal and below PSU 2 on the rear of the MX10004 (see Figure 1).
    Figure 8: ESD Point on the Rear of the MX10004 ESD Point on the Rear of the MX10004
      1
    —

    ESD point

    		 
  2. Flip the power (|) switch next to the appliance inlet on the power supply to the standby position (O).
  3. If the AC power source outlets have a power switch, set them to the off (O) position.
  4. Remove the retainers using a #1 Philips screw driver and detach the power cords from the PSU.
    Figure 9: Detach the Power Cords from JNP10K-PWR-AC3 Power Supply Detach the Power Cords from JNP10K-PWR-AC3 Power Supply
  5. Unscrew and remove the retainers, remove the power cord from the PSU, and disconnect the IEC320-C21 connectors from each input on the JNP10K-PWR-AC3 power supply faceplate.
  6. Unscrew the captive screw counterclockwise by using the Phillips (+) screwdriver, number 1. See Figure 10.
    Note:

    Ensure that the ejector is fully open to avoid scratching the chassis.

    Figure 10: Remove a JNP10K-PWR-AC3 Power Supply from a MX10004 Remove a JNP10K-PWR-AC3 Power Supply from a MX10004
  7. Rotate the captive screw away from the faceplate of the power supply to release the latch.
  8. Wear heat protective gloves before you remove the power supply from the chassis.
  9. Taking care not to touch the power supply output connections, pins, leads, or solder connections, place one gloved-hand under the power supply to support it. Grasp the power supply handle with your other hand and pull the power supply completely out of the chassis.
    CAUTION:

    Do not bump the output connections. If the connection hits a solid object, it could damage the power supply.
  10. Place the JNP10K-PWR-AC3 power supply on an antistatic surface to completely cool before placing the power supply in an antistatic bag for storage.
  11. Install the replacement JNP10K-PWR-AC3 power supply.
    CAUTION:

    Use the same type of power supply in all slots. Do not mix power supply models in a production chassis.

Install a JNP10K-PWR-AC2 Power Supply

CAUTION:

Use the same type of power supply in all slots. Do not mix AC and DC power supplies in a production chassis.
Warning:

Protect yourself from severe burns by wearing heat-protective gloves when removing a running JNP10K-PWR-AC2 power supply from the chassis. The power supply can reach temperatures from 158° F to 176° F (70° C to 80° C) under running conditions.

Before you install a JNP10K-PWR-AC2 power supply in the chassis:

  • Ensure that you have followed all safety warnings and cautions.

  • Review how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • If the AC or DC power source outlets have a power switch, set them to the off (O) position.

  • Have a qualified electrician install the HVAC and HVDC connectors and lugs.

  • Ensure that you have the following parts and tools available to install the JNP10K-PWR-AC2 power supply:

    • Electrostatic discharge (ESD) grounding strap

    • Phillips (+) screwdriver, number 1

    • Power cables appropriate for your geographical location (for low-voltage installations) or input amperage (for high-voltage installations). See MX10004 Power Cable Specifications.

To install a JNP10K-PWR-AC2 power supply in an MX10004:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to an ESD point on the chassis. An ESD point is located next to the protective earthing terminal and below PSU2 on the rear of the MX10004 (see Figure 11).
    Figure 11: ESD Point on the Rear of the MX10004 ESD Point on the Rear of the MX10004
      1
    —

    ESD point

    		 
  2. Taking care not to touch power supply connections, remove the power supply from its bag.
  3. Peel back and remove the protective plastic wrap that covers all four sides of the power supply.
  4. Ensure that the power switch is set to the standby (O) position. This switch turns off the output voltage; it doesn’t interrupt input power.
  5. Unscrew the captive screw in the counterclockwise direction by using the Phillips (+) screwdriver, number 1.
  6. Rotate the captive screw away from the faceplate of the power supply to release the latch.
    Note:

    You can install the power supplies in any slot labeled PSU 0 through PSU 2 (top to bottom) on an MX10004.
  7. Using both hands, place the power supply in the power supply slot on the rear of the system. Slide the power supply straight into the chassis until the power supply is fully seated in the slot. Ensure that the power supply faceplate is flush with any adjacent power supply faceplates or power supply covers (see Figure 12).
    Figure 12: Install a JNP10K-PWR-AC2 Install a JNP10K-PWR-AC2
  8. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
  9. Tighten the captive screw by turning it clockwise with the Phillips (+) screwdriver, number 1. When the screw is completely tight, the latch locks into the router chassis.
  10. Attach each power cable to a dedicated power source (A and B). The JNP10K-PWR-AC2 only requires that each power supply be connected to a separate source.
  11. For each power cable, insert the end of the cable with the Anderson connector into the JNP10K-PWR-AC2 power supply. The connector snaps and locks the cable into position.
    Warning:

    Ensure that the power cords do not block access to router components or drape where people can trip on them.
  12. If the AC or DC power source outlets have a power switch, set them to the on (|) position.
  13. Set the three DIP switches to set the inputs and whether the power supply is running at 3000 W, 5000 W, or 5500 W. See Table 2.

    Set both switch 1 and switch 2 to the on position when using both power source inputs; power is shared. When not using source redundancy, set the unused source to the off (O) position. The LED turns red and indicates an error if a source input is not in use and the DIP switch is on (|).

    Table 2: Set the JNP10K-PWR-AC2 DIP Switches

    Switch

    State

    Description

    1

    On

    INP0 is present.

    Off

    INP0 is not present.

    2

    On

    INP1 is present.

    Off

    INP1 is not present.

    3

    On

    Enabled for 30-A feed; 5000 W is for a single feed, and 5500 W is for dual feeds.

    Off

    Enabled for 20-A feed; power supply capacity is 3000 W.
  14. If the AC power source outlet has a power switch, turn it off before plugging in the AC power cord to the power outlet.
  15. Verify that the INP1 and INP2 LEDs on the power supply faceplate are lit and are on steadily.
  16. Press the power switch to the on (|) position.

Remove a JNP10K-PWR-AC2 Power Supply

Before you remove a JNP10K-PWR-AC2 power supply from the chassis:

  • Review how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you have the following parts and tools available:

    • Heat-protective gloves able to withstand temperatures of 158° F (70° C)

    • Electrostatic discharge (ESD) grounding strap

    • Phillips (+) screwdriver, number 1

    • Replacement power supply or a cover for the power supply slot

Warning:

Protect yourself from severe burns by wearing heat-protective gloves when removing a working JNP10K-PWR-AC2 power supply from the chassis. These power supplies can reach temperatures from 158° F to 176° F (70° C to 80° C) under running conditions.
CAUTION:

Before you remove a power supply, ensure that you have power supplies sufficient to power the router left in the chassis. See Power Requirements for MX10004 Components.
CAUTION:

Do not leave the power supply slot empty for a long time while the router is operational. Either replace the power supply promptly or install a cover over the empty slot.

To remove a JNP10K-PWR-AC2 power supply from an MX10004 router:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to an ESD point on the chassis. An ESD point is located next to the protective earthing terminal and below PSU 2 on the rear of the MX10004 (see Figure 11).
  2. Flip the power (|) switch next to the appliance inlet on the power supply to the standby position (O).
  3. If the AC or DC power source outlets have a power switch, set them to the off (O) position.
  4. Disconnect the Anderson connectors from each input on the JNP10K-PWR-AC2 power supply faceplate.
  5. Unscrew the captive screw counterclockwise by using the Phillips (+) screwdriver, number 1. See Figure 13.
    Note:

    To avoid scratching the chassis, ensure that the ejector is fully open.

    Figure 13: Remove a JNP10K-PWR-AC2 Power Supply from an MX10004 Remove a JNP10K-PWR-AC2 Power Supply from an MX10004
  6. Rotate the captive screw away from the faceplate of the power supply to release the latch.
  7. Wear heat-protective gloves before you remove the power supply from the chassis.
  8. Taking care not to touch the power supply output connections, pins, leads, or solder connections, place one gloved hand under the power supply to support it. Grasp the power supply handle with your other hand and pull the power supply completely out of the chassis.
    CAUTION:

    Do not bump the output connections. If the connection hits a solid object, it could damage the power supply.
  9. Place the JNP10K-PWR-AC2 power supply on an antistatic surface for it to cool down before placing the power supply in an antistatic bag for storage.
  10. Install the replacement JNP10K-PWR-AC2 power supply.
    CAUTION:

    Use the same type of power supply in all slots. Do not mix AC and DC power supplies in a production chassis.

Install a JNP10K-PWR-DC2 Power Supply

Before you install a JNP10K-PWR-DC2 power supply in the chassis:

  • Ensure that you follow all safety warnings and cautions.

    Warning:

    Before performing DC power procedures, ensure that power is removed from the DC circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the off (O) position, and tape the switch handle of the circuit breaker in the off position.
    Warning:

    Protect yourself from severe burns by wearing heat-protective gloves when removing a working JNP10K-PWR-DC2 power supply from the chassis. JNP10K-PWR-DC2 power supplies can reach temperatures from 158° F to 176° F (70° C to 80° C) under running conditions.
    CAUTION:

    Before you connect power to the router, a licensed electrician must attach a cable lug to the grounding and power cables that you supply. A cable with an incorrectly attached lug can damage the router (for example, by causing a short circuit).
    CAUTION:

    Use the same type of power supply in all slots. Do not mix AC and DC power supplies in a production chassis.

    CAUTION:

    To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the MX10004 routers to earth ground before you connect them to power. For installations that require a separate grounding conductor to the chassis, use the protective earthing terminal on the router chassis to connect to earth ground. For instructions on connecting an MX10004 router to ground using a separate grounding conductor, see Connect the MX10004 Router to Earth Ground.
    Note:

    The battery returns of the JNP10K-PWR-DC2 power supply must be connected as an isolated DC return (DC-I).

  • Review how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you have the following parts and tools available to install a DC power supply:

    • Electrostatic discharge (ESD) grounding strap

    • High-current cable assembly CBL-PWR2-BARE (not provided) with the cable lugs (provided) attached and with heat-shrink tubing insulation around the crimped section of the power cables and lugs

      The provided terminal lugs for the JNP10K-PWR-DC2 (Panduit LCD4-14A-L, or equivalent) and sized for 4 AWG (21.1 mm2) power source cables

      Power source cables as 4 AWG (21.1 mm²) stranded wire that is rated 75° C or per local electrical code

    • 13/32 in. (10 mm) nut driver or socket wrench

    • Phillips (+) screwdrivers, numbers 1 and 2

    • Multimeter

To install a JNP10K-PWR-DC2 power supply in an MX10004:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to an ESD point on the chassis. An ESD point is located next to the protective earthing terminal and below PSU 5 on the rear of the MX10004 (see Figure 11).
  2. Taking care not to touch power supply components, pins, leads, or solder connections, remove the power supply from its bag.
  3. Peel back and remove the protective plastic wrap that covers all four sides of the power supply.
  4. Ensure that the power switch is set to the standby (O) position. This switch turns off the output voltage; it doesn’t interrupt DC.
  5. Remove the plastic cable cover from the power input terminals by using the Phillips (+) screwdriver, number 2, to loosen the screws (see Figure 14).
    Figure 14: Remove the Plastic Cable Cover on a JNP10K-PWR-DC2 Power Supply Remove the Plastic Cable Cover on a JNP10K-PWR-DC2 Power Supply
  6. Remove the nuts from each DC power input terminal, using the 13/32 in. (10 mm) nut driver or socket wrench.
  7. Ensure that the power source circuit breaker is open so that the voltage across the DC power source cable leads is 0 V. Also ensure that the cable leads don’t become active while you connect DC power.
  8. Verify that the DC power cables are labeled correctly before making connections to the power supply. In a typical power distribution scheme where the return is connected to chassis ground at the battery plant, you can use a multimeter to verify the resistance of the –48 V and RTN DC cables to chassis ground:

    • The cable with very high resistance (indicating an open circuit) to chassis ground is negative (–) and will be installed on the –48 V (input) DC power input terminal.

    • The cable with very low resistance (indicating a closed circuit) to chassis ground is positive (+) and will be installed on the RTN (return) DC power input terminal.

    The JNP10K-PWR-DC2 power supply is the equivalent of two power supplies in a single housing. Each JNP10K-PWR-DC2 has four independent sets of DC power input terminals:

    • INPUT A0: : RTN –48 V/–60 V

    • INPUT B0: : RTN –48 V/–60 V

    • INPUT A1: : RTN –48 V/–60 V

    • INPUT B1: : RTN –48 V/–60 V

    We recommend source redundancy (source A and source B) to all inputs to ensure reliability of the system. If two power sources are not available, then use two feeds from the same source to provide power distribution reliability. Two feeds mean two independent power distribution routes from the source to the system. See Figure 15.

    Figure 15: JNP10K-PWR-DC2 Input Terminal Marking JNP10K-PWR-DC2 Input Terminal Marking
    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.
  9. Install each power cable lug on the relevant DC power input terminal, securing each cable lug with the nut (see Figure 16). Apply between 24 lb-in. (2.7 Nm) and 25 lb-in. (2.8 Nm) of torque to each nut. (Use the 13/32 in. [10 mm] nut driver or socket wrench.)

    1. Secure each positive (+) DC source power cable lug to the RTN (return) DC power input terminal.

    2. Secure each negative (–) DC source power cable lug to the –48 V (input) DC power input terminal.

    Figure 16: Connect the DC Power Source Cables to a JNP10K-PWR-DC2 Power Supply Connect the DC Power Source Cables to a JNP10K-PWR-DC2 Power Supply
  10. Install the plastic cable cover over each set of power cables and tighten the screws by using the Phillips (+) screwdriver, number 2.
  11. Unscrew the captive screw in the counterclockwise direction by using the Phillips (+) screwdriver, number 1.
  12. Rotate the captive screw away from the faceplate of the power supply to release the latch.
  13. Using both hands, place the power supply in the power supply slot on the rear of the router. Slide the power supply straight into the chassis until the power supply is fully seated in the slot. (See Figure 17).
  14. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
  15. Tighten the captive screw by turning it clockwise with the Phillips (+) screwdriver, number 1. When the screw is completely tight, the latch locks into the router chassis.
    Figure 17: Install a JNP10K-PWR-DC2 in an MX10004 Install a JNP10K-PWR-DC2 in an MX10004
  16. Route INP1 cables to a power source and INP2 to another power source. The JNP10K-PWR-DC2 shares power, so if power dips on one input, the power supply is able to load balance internally.
    Warning:

    Ensure that the power cords do not block access to router components or drape where people can trip on them.
  17. Set the three DIP switches to indicate the number of input sources and to indicate high or low power. See Table 3 and Figure 18.

    Set both enable switches to the on position when using both source inputs. When not using source redundancy, set the unused source to the off position. The LED turns red and indicates an error if a source input is not in use and the enable switch is on.

    Table 3: Set the JNP10K-PWR-DC2 DIP Switches

    Switch

    State

    Description

    1

    On

    IP0 is present.

    Off

    IP0 is not present.

    2

    On

    IP1 is present.

    Off

    IP1 is not present.

    3

    On

    Enabled for 80-A feed; 2750 W is for a single feed, and 5500 W is for dual feeds.

    Off

    Enabled for 60-A feed; 2200 W is for a single feed, and 4400 W is for dual feeds.
    Figure 18: Set the Enable Switches for the Power Source Set the Enable Switches for the Power Source
      1
    —

    DIP switches

      2
    —

    Power switch: on (|) and standby (O)
  18. Verify that the input 1 and 2 LEDs on the power supply faceplate are lit and are on steadily.
  19. Press the power switch to the on (|) position.

Remove a JNP10K-PWR-DC2 Power Supply

Before you remove a DC power supply from the router:

  • Review how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you have the following parts and tools available to remove a JNP10K-PWR-DC2 power supply:

    • Heat-protective gloves that can withstand temperatures from 158° F to 176° F (70° C to 80° C)

    • Electrostatic discharge (ESD) grounding strap

    • Phillips (+) screwdriver, numbers 1 and 2

    • 13/32 in. (10 mm) nut driver or socket wrench

    • Replacement power supply or a cover for the power supply slot

CAUTION:

A working JNP10K-PWR-DC2 power supply can reach temperatures of 158° F to 176° F (70° C to 80° C) under running conditions. In order to avoid injury, do not touch a running power supply with your bare hands.
CAUTION:

Before you remove a power supply, ensure that you have power supplies sufficient to power the router left in the chassis. See MX10004 Power Planning and Power Requirements for MX10004 Components.
CAUTION:

Do not leave the power supply slot empty for a long time while the router is operational. Either replace the power supply promptly or install a cover over the empty slot.

To remove a JNP10K-PWR-DC2 power supply from an MX10004 router:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to an ESD point on the chassis. An ESD point is located next to the protective earthing terminal and below PSU 5 on the rear of the MX10004 (see Figure 11).
  2. Make sure that the voltage across the DC power source cable leads is 0 V.
  3. Ensure that the black power supply output switch, to the right of the captive screw, is set to the standby position.
  4. Unscrew the captive screw counterclockwise using the Phillips (+) screwdriver, number 1. (See Figure 19 )
    Figure 19: Remove a JNP10K-PWR-DC2 Power Supply on an MX10004 Remove a JNP10K-PWR-DC2 Power Supply on an MX10004
  5. Rotate the captive screw away from the faceplate of the power supply to release the latch.
    Note:

    Ensure that the ejector is fully open to prevent damaging the chassis. See Figure 20.
    Figure 20: Open Power Supply Ejector Open Power Supply Ejector
  6. Wear the heat-resistant gloves to protect your hands from the hot power supply.
  7. Taking care not to touch power supply components, pins, leads, or solder connections, place one gloved hand under the power supply to support it. Grasp the power supply handle with your other hand and pull the power supply completely out of the chassis.
  8. If you are not replacing the power supply, install the cover over the slot. To install the cover, insert your thumb and forefinger into the finger holes of the cover, squeeze to retract the spring latches, and place the cover in the slot. Do not run the chassis without a power supply or cover in place.
  9. Unscrew the screw on the plastic cable cover that shields the input terminal studs. Turn the screw counterclockwise by using the Phillips (+) screwdriver, number 2.
  10. Unscrew the nuts counterclockwise, using the 13/32 in. (10 mm) nut driver or socket wrench, from the input terminal studs.
  11. Remove the cable lugs from the input terminal studs.