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Connecting the PTX1000 to Power

Connecting the PTX1000 to Ground

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the chassis to earth ground before you connect it to power. For installations that require a separate grounding conductor to the chassis, use the protective earthing terminal on the PTX1000 chassis to connect to the earth ground.

Note:

An AC-powered PTX1000 gains additional grounding when you plug the power supply in the device into a grounded AC power outlet by using an AC power cord appropriate for your geographical location. See PTX1000 AC Power Cord Specifications.

CAUTION:

Before you connect power to the PTX1000, 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 PTX1000 (for example, by causing a short circuit).

Note:

Mount the PTX1000 in the rack before attaching the grounding lug to the PTX1000. See Mounting the PTX1000 in a Rack.

Note:

You must install the PTX1000 in a restricted-access location and ensure that the chassis is always properly grounded. The PTX1000 has a two-hole protective grounding terminal provided on the chassis. See Figure 1. We recommend that you use this protective grounding terminal as the preferred method for grounding the chassis regardless of the power supply configuration. However, if additional grounding methods are available, you can also use those methods. For example, you can use the grounding wire in the AC power cord or use the grounding terminal or lug on a DC power supply. This tested system meets or exceeds all applicable EMC regulatory requirements with the two-hole protective grounding terminal.

Ensure that you have the following parts and tools available (none are provided):

  • Grounding cable—The grounding cable must be 8 AWG (8.4 mm²), minimum 90° C wire, or as permitted by the local code.

  • Grounding lug for your grounding cable—The grounding lug required is a Panduit LCD6-14BH-L or equivalent.

  • Two #10-32 UNF screws and washers.

  • Screwdriver appropriate for the #10-32 UNF screws.

To connect a grounding cable to the PTX1000:

  1. Connect one end of the grounding cable to a proper site earth ground, such as the rack in which the PTX1000 is mounted.
  2. Place the grounding lug attached to the grounding cable over the protective earthing terminal on the chassis (see Figure 1).
    Figure 1: Connecting a Grounding Cable to the PTX1000Connecting a Grounding Cable to the PTX1000
  3. Secure the grounding lug to the protective earthing terminal with the washers and screws.
  4. Dress the grounding cable and ensure that it does not touch or block access to other device components and that it does not drape where people could trip over it.

Connecting AC Power to the PTX1000

Before you begin connecting AC power to the PTX1000:

  • Read AC Power Electrical Safety Guidelines and AC Power Disconnection Warning.

  • Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

  • Ensure that you have connected the PTX1000 chassis to earth ground.

    CAUTION:

    Before you connect power to the PTX1000, 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).

    Note:

    To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the chassis to earth ground before you connect it to power. For installations that require a separate grounding conductor to the chassis, use the protective earthing terminal on the PTX1000 chassis to connect to the earth ground (see Connecting the PTX1000 to Ground).

    Note:

    An AC-powered PTX1000 gains additional grounding when you plug the router’s power supply into a grounded AC power outlet by using an AC power cord appropriate for your geographical location. See PTX1000 AC Power Cord Specifications.

  • Install the power supply in the chassis following the instructions in Installing a Power Supply in a PTX1000.

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

CAUTION:

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

Note:

Each power supply must be connected to a dedicated power source outlet.

To connect AC power to a PTX1000:

  1. To prevent damage to the equipment caused by static discharge, attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point.
  2. Ensure that the power supplies are fully inserted in the chassis and the latches are secure.
  3. Locate the power cord or cords shipped with the PTX1000; the cords have plugs appropriate for your geographical location. See PTX1000 AC Power Cord Specifications.
    Warning:

    Ensure that the power cord does not block access to router components or drape where people could trip over it.

  4. Insert the coupler end of the power cord into the AC power cord inlet on the AC power supply faceplate (see Figure 2).
    Figure 2: Connecting an AC Power Cord to an AC Power Supply in a PTX1000 Connecting an AC Power Cord to an AC Power Supply in a PTX1000
  5. If the AC power source outlet has a power switch, set it to the off (O) position.
    Note:

    The PTX1000 powers on as soon as power is provided to the power supply. There is no power switch on the router.

  6. Insert the power cord plug into an AC power source outlet.
  7. Repeat Step 4 through Step 6 for each power supply that you are connecting to power.
  8. If the AC power source outlet has a power switch, set it to the on (|) position.
  9. Verify that the status LEDs on each power supply are lit green.

    If the status LED is lit amber, remove power from the power supply, and replace the power supply (see Removing a Power Supply from the PTX1000). Do not remove the power supply until you have a replacement power supply ready: the power supplies must be installed in the PTX1000 to ensure proper airflow.

    CAUTION:

    Replace a failed power supply with a new power supply within 30 seconds of removal to prevent overheating of the chassis.

Connecting DC Power to the PTX1000

Before you begin connecting DC power to the PTX1000:

  • Read PTX1000 DC Power Electrical Safety Guidelines, and the following warnings:

  • Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

  • Ensure that you have connected the PTX1000 chassis to earth ground.

    CAUTION:

    Before you connect power to the PTX1000, 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).

    Note:

    To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the chassis to earth ground before you connect it to power. For installations that require a separate grounding conductor to the chassis, use the protective earthing terminal on the PTX1000 chassis to connect to the earth ground (see Connecting the PTX1000 to Ground).

  • Install the power supply in the chassis following the instructions in Installing a Power Supply in a PTX1000.

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

    • ESD grounding strap

    • Slotted (–) screwdriver, 1/4-in., with a torque range between 6 lb-in (0.68 Nm) and 7 lb-in (0.79 Nm)

      CAUTION:

      You must use an appropriate torque-controlled tool to tighten the screws on the DC power cable connector. Do not overtighten the screws. Applying excessive torque damages the terminal block and the wiring tray. The absolute maximum torque that may be applied to this screw is 10 lb-in (1.13 Nm).

    • Power cable or cables appropriate for your geographical location available to connect DC power to the PTX1000. There are two types of DC power cables—a straight DC power cable (CBL-JNP-PWR-DSUB) and a right-angle DC power cable (CBL-JNP-PWR-DSUB2 or CBL-JNP-PWR-DSUB3). See PTX1000 DC Power Cable Specifications for more information.

Warning:

DC-powered PTX1000 models are intended for installation only in a restricted-access location.

CAUTION:

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

Note:

Each power supply must be connected to a dedicated power source outlet.

To connect DC power to a PTX1000:

  1. To prevent damage to the equipment caused by static discharge, attach an ESD grounding strap to your bare wrist, and connect the strap to an approved site ESD grounding point.
  2. Ensure that the power supplies are fully inserted in the chassis and the latches are secure.
  3. If you are using the straight DC power cable (CBL-JNP-PWR-DSUB), connect the green grounding wire in each power cable to ground.
  4. Connect each power supply to the power source, by inserting the DC connector into the power supply. See Figure 3, Figure 4, or Figure 5.
    Figure 3: Connecting a Straight DC Power Cable to a DC Power Supply in a PTX1000 (CBL-JNP-PWR-DSUB)Connecting a Straight DC Power Cable to a DC Power Supply in a PTX1000 (CBL-JNP-PWR-DSUB)
    Figure 4: Connecting a Right-Angle DC Power Cable to a DC Power Supply in a PTX1000 (CBL-JNP-PWR-DSUB2)Connecting a Right-Angle DC Power Cable to a DC Power Supply in a PTX1000 (CBL-JNP-PWR-DSUB2)
    Figure 5: Connecting a Right-Angle DC Power Cable to a DC Power Supply in a PTX1000 (CBL-JNP-PWR-DSUB3)Connecting a Right-Angle DC Power Cable to a DC Power Supply in a PTX1000 (CBL-JNP-PWR-DSUB3)
    Warning:

    Ensure that the power cables do not block access to device components or drape where people could trip over them.

  5. Using the slotted screwdriver, tighten the screws on the power cable connector to between 6 lb-in (0.68 Nm) and 7 lb-in (0.79 Nm).
    CAUTION:

    You must use an appropriate torque-controlled tool to tighten the screws on the DC power cable connector. Do not overtighten the screws. Applying excessive torque damages the terminal block and the wiring tray. The absolute maximum torque that may be applied to this screw is 10 lb-in (1.13 Nm).

  6. Repeat Step 4 and Step 5 for each power supply that you are connecting to power.
  7. Close the input circuit breaker.
    Note:

    We recommend that the 48-VDC facility DC source be equipped with a circuit breaker rated at 40 A (–48 VDC) minimum, or as required by local code.

    Note:

    The PTX1000 powers on as soon as power is provided to the power supply. There is no power switch on the router.

  8. Verify that the status LEDs on each power supply are lit green.

    If the status LED is lit amber, remove power from the power supply, and replace the power supply (see Removing a Power Supply from the PTX1000). Do not remove the power supply until you have a replacement power supply ready: the power supplies must be installed in the PTX1000 to ensure proper airflow.

    CAUTION:

    Replace a failed power supply with a new power supply within 30 seconds of removal to prevent chassis overheating.