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Connecting the QFX10002

Use the following topics to connect external devices and power to the QFX10002:

Connecting the QFX10002 to Ground

You must install the QFX10002 in a restricted-access location and ensure that the chassis is always properly grounded. The QFX10002 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 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

CAUTION:

Ensure a licensed electrician has attached an appropriate cable lug to the grounding cable that your supply. A cable with an incorrectly attached lug can damage the switch (for example, by causing a short circuit).

Note:

Mount your switch in the rack or cabinet before attaching the grounding lug to the switch. See Mounting a QFX10002 in a Rack.

Ensure that you have the following parts and tools available:

To connect earth ground to a QFX10002:

  1. Connect one end of the grounding cable to a proper site earth ground, such as the rack in which the switch is mounted.
  2. Place the grounding lug, which is attached to the grounding cable, over the protective earthing terminal on the chassis. See Figure 1.
    Figure 1: Connecting a Grounding Cable to the QFX10002 Connecting a Grounding Cable to the QFX10002
  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 a QFX10002 to a Management Ethernet Device

Ensure that you have an appropriate cable available. See Cable Specifications for Console and Management Connections for the QFX Series.

You can monitor and manage the QFX10002 using a dedicated management channel. The QFX10002 has two management ports: a 10/100/1000BASE-T RJ-45 port for copper connections and a 1-Gigabit SFP ports for fiber connections. Use the management ports to connect the QFX10002 to a network for out-of-band management.

Note:

You cannot use the management ports to perform the initial configuration of the QFX10002. You must configure the management ports before you can successfully connect to the QFX10002 using these ports. See Performing an Initial Configuration of a QFX10000.

To connect a QFX10002 to a network for out-of-band management (see Figure 2):

  1. Connect one end of the cable to one of the two management ports (labeled MGMT ) on the QFX10002.
  2. Connect the other end of the cable to the management switch.
Figure 2: Connecting a QFX10002 to a Network for Out-of-Band ManagementConnecting a QFX10002 to a Network for Out-of-Band Management

Connecting a QFX Series Device to a Management Console

Ensure that you have an RJ-45 to DB-9 rollover cable available. An RJ-45 cable with an RJ-45 to DB-9 adapter is provided with the device.

Note:

If your laptop or PC does not have a DB-9 plug connector pin and you want to connect your laptop or PC directly to the QFX Series, use a combination of the RJ-45 cable and RJ-45 to DB-9 adapter supplied with the device and a USB to DB-9 plug adapter. You must provide the USB to DB-9 plug adapter.

The QFX Series has a console port with an RJ-45 connector. Use the console port to connect the device to a management console or to a console server.

To connect the QFX Series to a management console (see Figure 3 and Figure 4):

  1. Connect one end of the Ethernet cable to the console port (labeled CON).
  2. Connect the other end of the Ethernet cable into the console server (see Figure 3) or management console (see Figure 4).
Figure 3: Connecting the QFX Series to a Management Console Through a Console ServerConnecting the QFX Series to a Management Console Through a Console Server
Figure 4: Connecting the QFX Series Directly to a Management ConsoleConnecting the QFX Series Directly to a Management Console

Connecting AC Power to a QFX10002

Ensure that you have a power cord appropriate for your geographical location available to connect AC power to the switch.

Before you begin connecting AC power to the switch:

The power supply in a QFX10002 is a hot-removable and hot-insertable field-replaceable unit (FRU). After removing the power cord from an individual power supply, you can remove and replace it without powering off the switch or disrupting switch functions.

Note:

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

To connect AC power to a QFX10002:

  1. Attach the grounding strap to your bare wrist and to a site ESD 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 switch; the cords have plugs appropriate for your geographical location. See QFX10002 AC Power Specifications .
    Warning:

    Ensure that the power cord does not block access to device components or drape where people can trip on it.

  4. Connect each power supply to the power sources. Insert the coupler end of the power cord into the AC power cord inlet on the AC power supply faceplate (see Figure 5).
    Figure 5: Connecting an AC Power Cord to an AC Power Supply in a QFX10002-72Q Connecting an AC Power Cord to an AC Power Supply in a QFX10002-72Q
  5. If the AC power source outlet has a power switch, set it to the OFF (O) position.
    Note:

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

  6. Insert the power cord plug into an AC power source outlet.
  7. If the AC power source outlet has a power switch, set it to the ON (|) position.
  8. Verify that the AC and DC LEDs on each power supply are lit green.

    If the amber fault LED is lit, remove power from the power supply, and replace the power supply (see Removing a Power Supply from a QFX10002). Do not remove the power supply until you have a replacement power supply ready: the power supplies or a blank cover panel must be installed in the switch to ensure proper airflow.

    CAUTION:

    Replace a failed power supply with a blank panel or new power supply within 1 minute of removal to prevent chassis overheating.

Connecting DC Power to a QFX10002

Before you begin connecting DC power to the switch:

  • 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 switch chassis to earth ground. See Connecting the QFX10002 to Ground.

  • Install the power supply in the chassis. For instructions, follow the instructions in Installing a Power Supply in a QFX10002.

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

  • 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) to 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 cables appropriate for your geographical location available to connect DC power to the QFX10002. 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 QFX10002 DC Power Specifications.

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.

The power supply in a QFX10002 is a hot-removable and hot-insertable field-replaceable unit (FRU). You can remove and replace it without powering off the switch or disrupting switch functions. You do, however, need to remove power from the power supply before attempting to remove the unit.

Warning:

DC-powered QFX10002 models are intended for installation only in a restricted access location.

To connect DC power to a QFX10002:

  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 that 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 DC power cable to ground. Right angled DC cables, do not have a grounding wire.
  4. Connect each power supply to the power source by inserting the DC connector into the power supply. See Figure 6 for straight DC power cables and Figure 7 and Figure 8 for right-angle DC power cables.
    Figure 6: Connecting a Straight DC Power Cable to a DC Power Supply (CBL-JNP-PWR-DSUB)Connecting a Straight DC Power Cable to a DC Power Supply (CBL-JNP-PWR-DSUB)
    Figure 7: Connecting a Right-Angle DC Power Cable to a DC Power Supply (CBL-JNP-PWR-DSUB2)Connecting a Right-Angle DC Power Cable to a DC Power Supply (CBL-JNP-PWR-DSUB2)
    Figure 8: Connecting a Right-Angle DC Power Cable to a DC Power Supply (CBL-JNP-PWR-DSUB3)Connecting a Right-Angle DC Power Cable to a DC Power Supply (CBL-JNP-PWR-DSUB3)
    Warning:

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

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

    You must use an appropriate torque-controlled tool to tighten 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 4 through 5 for each power supply that you are connecting to power.
  7. Close the input circuit breaker.

    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:

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

    Note:

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

  8. Verify that the LED on the power supply is lit green and is on steadily.

    If the status LED is lit amber, remove power from the power supply, and replace the power supply (see Removing a Power Supply from a QFX10002). Do not remove the power supply until you have a replacement power supply ready. The power supplies must be installed in the QFX10002 to ensure proper airflow.

    CAUTION:

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