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Install and Remove PTX10008 Power System Components

PTX10008 routers support both AC, DC, high voltage alternating current (HVAC), and high voltage direct current (HVDC) power supplies. To install and remove the power supplies in a PTX10008 router, read the following sections. All power supply models are hot-insertable and hot-removeable field-replaceable units (FRUs). You can install up to six power supplies in the rear of the chassis in the slots provided along the left side.

If you are upgrading a JNP10008-SF fabric system to use JNP10K-PWR-AC2 power supplies, also upgrade your fans and fan tray controllers to ensure the proper airflow. JNP10K-PWR-AC2 power supplies require JNP10008-FAN2 and JNP10008-FTC2 cooling systems.

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-AC Power Supply

Before you install a JNP10K-PWR-AC power supply in the router:

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

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

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

    • Electrostatic discharge (ESD) grounding strap

    • Phillips (+) screwdriver, number 1

    • Power cords appropriate for your geographical location. See PTX10008 Power Cables Specifications.

    • Power cord retainer clips

To install a JNP10K-PWR-AC power supply in a PTX10008:

  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 5 on the rear of the PTX10008 (see Figure 1).
    Figure 1: ESD Point on the Rear of the PTX10008 ESD Point on the Rear of the PTX10008
      1
    —

    ESD point

    		 
  2. If the power supply slot has a cover on it, insert your thumb and forefinger into the finger holes, squeeze and pull the cover out of the slot. Save the cover for later use. See Figure 2.
    Figure 2: Remove the Power Supply Cover on a PTX10008Remove the Power Supply Cover on a PTX10008
  3. Taking care not to touch power supply connections, remove the power supply from its bag.
  4. Peel back and remove the protective plastic wrap that covers all four sides of the power supply.
  5. Ensure that the power switch is set to the standby (O) position. This switch turns off the output voltage; it does not interrupt AC supply.
  6. Unscrew the captive screw in the counterclockwise direction by using your fingers or by using the Phillips (+) screwdriver, number 1.
  7. 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 5 (top to bottom) on a PTX10008.

  8. Using both hands, place the power supply in the power supply slot on the rear of the system.
  9. 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 3).
  10. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
  11. Tighten the captive screw by turning it clockwise by using your fingers or by using the Phillips (+) screwdriver, number 1. Do not overtighten—do not apply more than 7.3 lb-in (0.82 Nm) of torque to the screws. When the screw is completely tight, the latch locks into the router chassis.
    Figure 3: Install a JNP10K-PWR-AC Power Supply in a PTX10008 Install a JNP10K-PWR-AC Power Supply in a PTX10008 Install a JNP10K-PWR-AC Power Supply in a PTX10008
    Note:

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

  12. Manually load-balance the power supplies as you attach each power cable to a dedicated AC power source outlet. To load-balance, route the power cables to alternate between power sources. The JNP10K-PWR-AC does not share power; all power comes into INP1 (lower receptacle) and uses INP2 (top receptacle) only at failover. See Figure 4.
    Figure 4: Proper Load Balancing for JNP10K-PWR-AC Power Cables on PTX10008Proper Load Balancing for JNP10K-PWR-AC Power Cables on PTX10008
    Warning:

    Ensure that the power cords do not block access to router components or drape where people can trip on them. Always prevent cords and cables from being exposed to hot air exhaust by routing them away from the fan trays and power supplies at the rear of the chassis.

  13. Squeeze the two sides of the power cord retainer clip and insert the ends of the clip into the holes in the bracket on each side of the AC appliance inlets on the AC power supply faceplate. See Figure 5.
  14. Locate two power cords shipped with the router; the cords have plugs appropriate for your geographical location.
  15. Insert the power cord coupler into the power supply.

    Each AC power supply has two independent 16-A-rated AC inlets on the faceplate. Each inlet must be connected to a dedicated AC power feed to achieve 2n source redundancy. If redundancy is not a requirement, use the default input INP1 for a single connection.

  16. Fasten the cord retainer by lowering the clip over the cord and pushing the cord into the adjustment nut of the cord retainer. Rotate the nut until it is tight against the base of the cord. See Figure 5.
    Figure 5: Power Cord and Retainer ClipPower Cord and Retainer Clip
      1
    —

    Enable switch for INP1 appears as PS0 in output.

      2
    —

    Enable switch for INP2 appears as PS1 in output.

    Warning:

    Ensure that the power cords do not block access to router components or drape where people can trip on them.

  17. If the AC power source outlets have a power switch, set them to the on (|) position.
  18. Move the enable switches for input1 and input2 to the ON position.
  19. Verify that the INP1 and INP2 LEDs on the power supply faceplate are lit and are on steadily.
  20. Press the power switch to the on (|) position.

Remove a JNP10K-PWR-AC Power Supply

Before you remove a JNP10K-PWR-AC 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 to remove a JNP10K-PWR-AC power supply from a PTX10008 router:

    • Electrostatic discharge (ESD) grounding strap

    • Phillips (+) screwdriver, number 1

    • Heat-protective gloves

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

      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.

CAUTION:

Before you remove a power supply, ensure that you have power supplies sufficient to power the router left in the chassis. See PTX10008 Power Planning for JNP10008-SF3 Switch Fabric or PTX10008 Power Planning for JNP10008-SF Switch Fabric.

To remove a JNP10K-PWR-AC power supply from a PTX10008 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 5 on the rear of the PTX10008 (see Figure 6).
    Figure 6: ESD Point on Rear of the PTX10008 ESD Point on Rear of the PTX10008
      1
    —

    ESD point

    		 
  2. Flip the power switch (O and |) next to the appliance inlet on the power supply to the standby position (O).
  3. Disconnect power from the router by performing one of the following tasks:

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

    • If the AC power source outlets do not have a power switch, gently pull the plug end of the power cords connected to the power source outlets out of the outlets.

  4. Remove the power cords from the AC appliance inlets on the AC power supply faceplate.
  5. Turn the adjustment nut of the power cord retainers counterclockwise till you can see the power cord. Pull the power cord from the slot in the adjustment nuts.
  6. Unscrew the captive screw counterclockwise by using your fingers or by using the Phillips (+) screwdriver, number 1. See Figure 7.
    Figure 7: Remove a JNP10K-PWR-AC Power Supply from a PTX10008 Remove a JNP10K-PWR-AC Power Supply from a PTX10008
  7. 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 avoid scratching the chassis, see Figure 8.

    Figure 8: Open Power Supply EjectorOpen Power Supply Ejector
  8. Taking care not to touch the power supply output connections, pins, leads, or solder connections, place one 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.

    CAUTION:

    See the heat symbol . The power supply surfaces are hot. Allow a few minutes for the power supply to cool by pulling the power supply halfway out of the chassis, or wear protective, heat-resistant gloves while removing the power supply.

  9. 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.

Install a JNP10K-PWR-AC2 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-AC2 power supplies.

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 between 158°F and 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.

  • Ensure that you understand 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 off (O). Ensure that you have the following parts and tools available to install a 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 PTX10008 Power Cables Specifications. HVAC and HVDC connectors and lugs must be installed by a qualified electrician before installation.

To install a JNP10K-PWR-AC2 power supply in a PTX10008:

  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 PSU5 on the rear of the PTX10008 (see Figure 9).
    Figure 9: ESD Point on the Rear of the PTX10008ESD Point on the Rear of the PTX10008
      1
    —

    ESD point

    		 
  2. If the power supply slot has a cover on it, insert your thumb and forefinger into the finger holes, squeeze, and pull the cover out of the slot. Save the cover for later use. See Figure 10 for the removal on a PTX10008.
    Figure 10: Remove the Power Supply Cover on a PTX10008Remove the Power Supply Cover on a PTX10008
  3. Taking care not to touch power supply connections, remove the power supply from its bag.
  4. Peel back and remove the protective plastic wrap that covers all four sides of the power supply.
  5. Ensure that the power switch is set to the standby (O) position. This switch turns off the output voltage; it does not interrupt input power.
  6. Unscrew the captive screw in the counterclockwise direction by using your fingers or by using the Phillips (+) screwdriver, number 1.
  7. 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 5 (top to bottom) on a PTX10008.

  8. 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 11).
    Figure 11: Install a JNP10K-PWR-AC2 Power Supply in a PTX10008Install a JNP10K-PWR-AC2 Power Supply in a PTX10008
  9. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
  10. Tighten the captive screw by turning it clockwise by using your fingers or by using the Phillips (+) screwdriver, number 1. Do not overtighten—do not apply more than 7.3 lb-in (0.82 Nm) of torque to the screws. When the screw is completely tight, the latch locks into the router chassis.
  11. Attach each power cable to a dedicated power (A and B). The JNP10K-PWR-AC2 only requires that each power supply be connected to a separate source. See Figure 12 for some possible cabling combinations for PTX10008.
    Figure 12: Proper Load Balancing for JNP10K-PWR-AC2 Power Cables on a PTX10008Proper Load Balancing for JNP10K-PWR-AC2 Power Cables on a PTX10008
  12. 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.

  13. If the AC or DC power source outlets have a power switch, set them to the on (|) position.
  14. 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 1.

    Set both enable switches to the on position when using both power source inputs. 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 enable switch is on (|).

    Table 1: 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 for single feed, 5500 W for dual feeds.

    Off

    Enabled for 20-A feed; power supply capacity is 3000 W.
  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 an JNP10K-PWR-AC2 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 to remove a JNP10K-PWR-AC2 power supply from a PTX10008 router:

    • 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 between 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 PTX10008 Power Planning for JNP10008-SF3 Switch Fabric or PTX10008 Power Planning for JNP10008-SF Switch Fabric.

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 a PTX10008 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 5 on the rear of the PTX10008 (see Figure 13).
    Figure 13: ESD Point on the Rear of the PTX10008ESD Point on the Rear of the PTX10008
      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 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 your fingers or by using the Phillips (+) screwdriver, number 1. See Figure 14.
    Figure 14: Remove a JNP10K-PWR-AC2 Power Supply from a PTX10008 Remove a JNP10K-PWR-AC2 Power Supply from a PTX10008
  6. Rotate the captive screw away from the faceplate of the power supply to release the latch.
  7. Wear heat-protective gloves before removing the power supply from the chassis.
  8. Taking care not to touch the power supply output connections, pins, leads, or solder connections, place one 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 to completely cool before placing the power supply in an antistatic bag for storage.
  10. 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.

Install a JNP10K-PWR-DC Power Supply

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

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

    Warning:

    Before you perform DC power procedures, ensure there is no power to 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 position, and tape the switch handle of the circuit breaker in the off position.

    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:

    Do not mix AC and DC power supplies in the same chassis.

    CAUTION:

    To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect PTX10008 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 a PTX10008 router to ground using a separate grounding conductor, see Connect the PTX10008 Router to Earth Ground.

    Note:

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

  • 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 to install a JNP10K-PWR-DC power supply:

    • Electrostatic discharge (ESD) grounding strap

    • DC power source cables (not provided) with the cable lugs (provided) attached.

      The provided Panduit LCD4-14A-L, or equivalent, terminal lugs in a PTX10008 are sized for either 4 AWG (21.1 mm2) or 6 AWG (13.3 mm2) power source cables. When using all JNP10K-PWR-DC power supply modules in the chassis, the DC power source cables that you provide must be 6 AWG (13.3 mm²) stranded wire. We recommend that you install heat-shrink tubing insulation around the crimped section of the power cables and lugs.

      Note:

      If you upgrade the JNP10K-PWR-DC to a JNP10K-PWR-DC2 and set the input mode to high (80 A), you must use 4 AWG (21.1 mm²) stranded wire. The 4 AWG (21.1 mm²) stranded wire should be rated 75° C, or per local electrical code.

      Note:

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

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

    • Phillips (+) screwdrivers, numbers 1 and 2

    • Multimeter

    • Heat resistant gloves

To install a JNP10K-PWR-DC power supply in a PTX10008 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 5 on the rear of the PTX10008 (see Figure 15).
    Figure 15: ESD Point on the Rear of the PTX10008 ESD Point on the Rear of the PTX10008
      1
    —

    ESD point

    		 
  2. Taking care not to touch power supply components, pins, leads, or solder connections, remove the power supply from its bag.
    CAUTION:

    See the heat symbol . The power supply surfaces are hot. Allow a few minutes for the power supply to cool by pulling the power supply halfway out of the chassis, or wear heat-resistant gloves while removing the power supply.
  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 does not interrupt DC.
  5. Remove the plastic cable cover from the DC power input terminals by using the Phillips (+) screwdriver, number 2, to loosen the screws (see Figure 16).
    Figure 16: Remove the Plastic Cable Cover on a JNP10K-PWR-DC Power Supply Remove the Plastic Cable Cover on a JNP10K-PWR-DC Power Supply
  6. Remove the nuts from each DC power input terminal, using the 13/32 in. (10 mm) nut driver or socket wrench to loosen the nuts.
    Note:

    The JNP10K-PWR-DC2 power supply requires a dedicated circuit breaker for each input DC feed. You must use a circuit breaker that is rated for 80 A DC with medium delay.
  7. Ensure that the power source circuit breaker is open so that the voltage across the cable leads of the DC power source cable is 0 V and that the cable leads do not become active while you are connecting DC power.
  8. Install a power lug on each DC power cable. Ensure that the lug meets the double-hole standard lug terminal for 4 AWG wire. The lugs should be dual, 1/4 in. spaced 5/8 in. apart. The terminal must accommodate double-hole standard lug terminal for 4 AWG or larger wire.
  9. Verify that the DC power cables are correctly labeled 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 –48V 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 –48V (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.

    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.
  10. Install heat-shrink tubing insulation around the power cables.

    To install heat-shrink tubing:

    1. Slide the tubing over the portion of the cable where it is attached to the lug barrel. Ensure that tubing covers the end of the wire and the barrel of the lug attached to it.

    2. Shrink the tubing with a heat gun. Ensure that you heat all sides of the tubing evenly so that it shrinks around the cable tightly.

    Figure 17 shows the steps to install heat-shrink tubing.

    Note:

    Do not overheat the tubing.
    Figure 17: How to Install Heat-Shrink Tubing How to Install Heat-Shrink Tubing
  11. Install each power cable lug on the DC power input terminal, securing it with the nut (see Figure 18). Apply between 23 lb-in. (2.6 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 –48V (input) DC power input terminal.

    Figure 18: Connect the DC Power Source Cables to a JNP10K-PWR-DC Connect the DC Power Source Cables to a JNP10K-PWR-DC

    Each power supply has two independent sets of DC power input terminals (INPUT 1: RTN -48V/-60V and INPUT 2: RTN -48V/760V). For feed redundancy, each power supply must be powered by dedicated power feeds derived from feed INPUT 1 and feed INPUT 2. This configuration provides the commonly deployed INPUT 1 / INPUT 2 feed redundancy for the router. There is basic insulation between the inputs and the chassis ground. Also, there is basic insulation between RTN input feeds.

  12. Install the plastic cable cover over each set of power cables by using the Phillips (+) screwdriver, number 2, to tighten the screw.
  13. If the power supply slot on the chassis has a cover on it, insert your thumb and forefinger into the finger holes, squeeze, and pull the cover out of the slot. Save the cover for later use (see Figure 19).
    Figure 19: Remove the Power Supply Cover on a PTX10008 Remove the Power Supply Cover on a PTX10008
  14. Unscrew the captive screw in the counterclockwise direction by using your fingers or by using the Phillips (+) screwdriver, number 1.
  15. Pull 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 5 (top to bottom) on a PTX10008.
  16. Using both hands, place the power supply in the power supply slot on the rear of the router.
  17. 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 20).
  18. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
  19. Tighten the captive screw by turning it clockwise by using your fingers or by using the Phillips (+) screwdriver, number 1. Do not overtighten—do not apply more than 7.3 lb-in (0.82 Nm) of torque to the screws. When the screw is completely tight, the latch locks into the router chassis.
    Figure 20: Install a JNP10K-PWR-DC Power Supply in a PTX10008 Install a JNP10K-PWR-DC Power Supply in a PTX10008
    Note:

    Ensure that the ejector is fully open to avoid scratching the chassis (see Figure 21).
    Figure 21: Proper NP10K-PWR-DC Power Supply Ejector Position Proper NP10K-PWR-DC Power Supply Ejector Position
  20. Route input 1 cables to a power source and input 2 cables to another power source. The JNP10K-PWR-DC shares power, so if power dips on one input, the power supply is able to load-balance internally. See Figure 22.
    Figure 22: Proper Load Balancing for JNP10K-PWR-DC Power Cables on a PTX10008 Proper Load Balancing for JNP10K-PWR-DC Power Cables on a PTX10008
    Warning:

    Ensure that the power cords do not block access to router components or drape where people can trip on them.
  21. Set the enable switches for input 1 and input 2 (see Figure 23).

    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 (O) position. The LED turns red and indicates an error if a source input is not in use and the enable switch is on (|).

    Figure 23: Set the Enable Switches for the Power Source Set the Enable Switches for the Power Source
      1
    —

    DIP switches for enabling input sources

      2
    —

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

Remove a JNP10K-PWR-DC Power Supply

Before you remove a JNP10K-PWR-DC power supply from the router:

  • 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 to remove a JNP10K-PWR-DC power supply:

    • 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

    • Heat-protective gloves

CAUTION:

Before you remove a power supply, ensure that you have power supplies sufficient to power the router left in the chassis. See PTX10008 Power Planning for JNP10008-SF3 Switch Fabric or PTX10008 Power Planning for JNP10008-SF Switch Fabric.

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.

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-DC power supply from a PTX10008 router (see Figure 25):

  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 5 on the rear of the PTX10008 (see Figure 24).
    Figure 24: ESD Point on the Rear of the PTX10008ESD Point on the Rear of the PTX10008
      1
    —

    ESD point

    		 
  2. Make sure that the voltage across the DC power source cables leads is 0 V and that there is no chance that the cables might become active during the removal process.
  3. Ensure that the black power supply output switch, to the right of the captive screw, is set to the standby position (O).
  4. Unscrew the captive screw counterclockwise by using your fingers or by using the Phillips (+) screwdriver, number 1.
  5. Rotate the captive screw away from the faceplate of the power supply to release the latch. See Figure 25.
    Figure 25: Remove a JNP10K-PWR-DC Power Supply from a PTX10008 Remove a JNP10K-PWR-DC Power Supply from a PTX10008
    Note:

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

    Figure 26: Power Supply Ejector Power Supply Ejector
  6. 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.
    CAUTION:

    See the heat symbol . The power supply surfaces are hot. Allow a few minutes for the power supply to cool by pulling the power supply halfway out of the chassis, or wear heat-resistant gloves while removing the power supply.

  7. 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.
  8. Unscrew the screw on the plastic cable cover that shields the input terminal studs counterclockwise by using the number 2 Phillips (+) screwdriver.
  9. Unscrew the nuts counterclockwise, using the 13/32 in. (10 mm) nut driver or socket wrench from the input terminal studs.
  10. Remove the cable lugs from the input terminal studs.

Install a JNP10K-PWR-DC2 Power Supply

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

  • Ensure that you have followed 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 between 158°F and 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 power supply models in a production chassis.

    CAUTION:

    To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect PTX10008 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 a PTX10008 router to ground using a separate grounding conductor, see Connect the PTX10008 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).

  • 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 to install a DC power supply:

    • Electrostatic discharge (ESD) grounding strap

    • Use high current cable assembly, CBL-PWR2-BARE (not provided) with the cable lugs (provided) attached.

      The provided terminal lugs for the JNP10K-PWR-DC2 are Panduit LCD4-14A-L, or equivalent, and sized for 4 AWG (21.1 mm2) power source cables. The 4 AWG (21.1 mm²) stranded wire should be rated 75° C, or per local electrical code. We recommend that you install heat-shrink tubing insulation around the crimped section of the power cables and lugs.

    • 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 a PTX10008 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 5 on the rear of the PTX10008 (see Figure 27).
    Figure 27: ESD Point on Rear of the PTX10008 ESD Point on Rear of the PTX10008
      1
    —

    ESD point

    		 
  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 does not 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 28).
    Figure 28: 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 to loosen the nuts.
  7. Ensure that the power source circuit breaker is open so that the voltage across the DC power source cable leads is 0 V and that the cable leads do not become active while you are connecting DC power.
  8. Verify that the DC power cables are correctly labeled 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 –48V 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 –48V (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:

    • A0: INPUT A0 RTN –48V/–60V

    • B0: INPUT B0 RTN –48V/–60V

    • A1: INPUT A1 RTN –48V/–60V

    • B1: INPUT B1 RTN –48V/–60V

    Figure 29: 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.

    We recommend source redundancy (source A and source B) to all inputs to ensure reliability of the system.

    If you have two independent power sources (source A and source B): We recommend that you have four sets of independent power feeds—two from source A and two from source B. You must connect the two feeds from source A to terminals A0 and A1 on the power supply and the two feeds from source B to terminals B0 and B1 on the power supply. This will provide the power supply with source and power distribution redundancy.

    If you have only one power source and want power distribution redundancy: We recommend that you have four sets of independent power feeds from that source. You must connect the feeds to terminals A0, A1, B0, and B1 on the power supply. This will provide the power supply with power distribution redundancy.

    If you have only one power source and do not want power distribution redundancy: We recommend that you have four sets of independent power feeds from that source. You must connect one pair of feeds to terminal A0 or B0 on the power supply, and you must connect the other pair of feeds to terminal A1 or B1. In this scenario, the power supply delivers the full output power of 5500 W.

    If you connect one power feed to A0 and another power feed to B0 or if you connect one power feed to A1 and another power feed to B1, the power supply delivers only half the output power—2750 W. That is because terminals A0 and B0 are associated with PS0 power supply (2750 W) and terminals A1 and B1 are associated with PS1 power supply (2750 W).

  9. Install heat-shrink tubing insulation around the power cables.

    To install heat-shrink tubing:

    1. Slide the tubing over the portion of the cable where it is attached to the lug barrel. Ensure that tubing covers the end of the wire and the barrel of the lug attached to it.

    2. Shrink the tubing with a heat gun. Ensure that you heat all sides of the tubing evenly so that it shrinks around the cable tightly.

    Figure 30 shows the steps to install heat-shrink tubing.

    Note:

    Do not overheat the tubing.
    Figure 30: How to Install Heat-Shrink Tubing How to Install Heat-Shrink Tubing
  10. Install each power cable lug on the DC power input terminal, securing it with the nut (see Figure 31). Apply between 23 lb-in. (2.6 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 –48V (input) DC power input terminal.

    Figure 31: 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
  11. Install the plastic cable cover over each set of power cables by using the Phillips (+) screwdriver, number 2, to tighten the screw.
  12. If the power supply slot on the chassis has a cover on it, insert your thumb and forefinger into the finger holes, squeeze, and pull the cover out of the slot. Save the cover for later use (see Figure 32).
    Figure 32: Remove the Power Supply Cover on a PTX10008 Remove the Power Supply Cover on a PTX10008
  13. Unscrew the captive screw in the counterclockwise direction by using your fingers or by using the Phillips (+) screwdriver, number 1.
  14. Rotate the captive screw away from the faceplate of the power supply to release the latch.
  15. 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. The power supply will protrude from the chassis about 2 in. (5 cm) (see Figure 33).
  16. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
  17. Tighten the captive screw by turning it clockwise by using your fingers or by using the Phillips (+) screwdriver, number 1. Do not overtighten—do not apply more than 7.3 lb-in (0.82 Nm) of torque to the screws. When the screw is completely tight, the latch locks into the router chassis.
    Figure 33: Install a JNP10K-PWR-DC2 in PTX10008 Install a JNP10K-PWR-DC2 in PTX10008
  18. Route input A0 and A1 cables to a power source and input B0 and B1 cables to another power source. You must connect each input to a dedicated power distribution and protection. The JNP10K-PWR-DC2 shares power, so if power dips on one input, the power supply is able to load-balance internally. See Figure 34.
    Figure 34: Proper Load Balancing for JNP10k-PWR-DC2 Power Cables on PTX10008 Proper Load Balancing for JNP10k-PWR-DC2 Power Cables on PTX10008
    Warning:

    Ensure that the power cords do not block access to router components or drape where people can trip on them.
  19. Set the three DIP switches to indicate the number of input sources and to indicate high or low power. See Table 2 and Figure 35.

    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 2: 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 for a single feed, 5500 W for dual feeds.

    Off

    Enabled for 60-A feed; 2200 W for a single feed, 4400 W for dual feeds.
    Figure 35: 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)
  20. Verify that the input 1 and 2 LEDs on the power supply faceplate are lit and are on steadily.
  21. 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:

  • 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 to remove a JNP10K-PWR-DC2 power supply:

    • Heat-protective gloves able to withstand temperatures between 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 up to 158°F and 176°F (70°C and 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 PTX10008 Power Planning for JNP10008-SF Switch Fabric and PTX10008 Power Planning for JNP10008-SF3 Switch Fabric.

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 a PTX10008 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 5 on the rear of the PTX10008 (see Figure 36).
    Figure 36: ESD Point on the Rear of the PTX10008ESD Point on the Rear of the PTX10008
      1
    —

    ESD point

    		 
  2. Make sure that the voltage across the DC power source cables leads is 0 V and that there is no chance that the cables might become active during the removal process.
  3. Ensure 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 by using your fingers or by using the Phillips (+) screwdriver, number 1.
  5. Rotate the captive screw away from the faceplate of the power supply to release the latch. (See Figure 37.)
    Figure 37: Remove a JNP10K-PWR-DC2 Power Supply on PTX10008Remove a JNP10K-PWR-DC2 Power Supply on PTX10008
  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 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.

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