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Connect SSR1200 to Power

SUMMARY Connecting power to the SSR1200 appliance involves numerous steps and safety precautions to prevent equipment damage and personal injury.

Note:

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the SSR1200 appliance to an earth ground before you connect it to power.

Connect Earth Ground to SSR1200

Note:

Before you connect an earth ground to the protective earthing terminal of an SSR1200 appliance, ensure that a licensed electrician has attached an appropriate grounding ring terminal to the grounding cable you supply. Using a grounding cable with an incorrectly attached ring terminal can damage the appliance.

Before connecting the appliance to an earth ground, ensure that you have the following parts and tools available:

  • An electrostatic discharge (ESD) grounding strap.

  • Protective earthing ring terminal.

  • Grounding cable for your appliance—The grounding cable must be 14 AWG (1.5 mm²) stranded wire and should be rated 90 °C or per local electrical code.

  • Grounding ring terminal for your grounding cable—This bracket attaches to the chassis grounding point located on the rear of the appliance.

  • A Phillips screwdriver (not provided) to tighten the screw.

We recommend that you install heat-shrink tubing insulation around the crimped section of the earthing cable and ring terminal.

You ground the SSR1200 by connecting a grounding cable to earth ground and then attaching the grounding cable to the chassis grounding point located on the rear of the appliance. Under all circumstances, use this grounding connection to ground the chassis. For AC-powered systems, you must also use the grounding wire in the AC power cord along with the one-hole grounding ring terminal connection. This tested system meets or exceeds all applicable EMC regulatory requirements with the one-hole protective grounding ring terminal.

To ground the appliance:

  1. Wrap and fasten one end of the ESD grounding strap around your wrist and connect the other end to a site ESD point.
  2. Ensure that all grounding surfaces are clean and brought to a bright finish before grounding connections are made.
  3. Connect the grounding cable to a proper earth ground, such as the rack in which the appliance is mounted.
  4. Using a Phillips screwdriver, remove the M4 screw from the grounding point on the rear of the chassis.
  5. Place the grounding cable ring terminal attached to the grounding cable over the grounding point.
  6. Secure the grounding cable ring terminal to the grounding point with the M4 screw.
    Figure 1: Connecting the Grounding Cable to the SSR1200 Connecting the Grounding Cable to the SSR1200
  7. Dress the grounding cable and verify that it does not touch or block access to the appliance components and that it does not drape where people could trip on it.
    Note:

    The appliance should be permanently connected to ground during operation.

Connect Power to SSR1200

The AC power supply units (PSUs) in an SSR1200 are hot-removable and hot-insertable field-replaceable units (FRUs). You can remove and replace the PSUs without powering off the appliance or disrupting its functions.

Before you begin to connect AC power to the appliance:

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

    CAUTION:

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

    To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the chassis to an 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 appliance chassis to connect to the earth ground. The appliance gains additional grounding when you plug the PSU in the appliance to a grounded AC power outlet by using the AC power cord appropriate for your geographical location.

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

  • Read General Electrical Safety Guidelines and Warnings and Action to Take After an Electrical Accident.

  • A power cord retainer strip (provided with the appliance)

  • Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage.

  • Ensure that you have an ESD grounding strap.

  • If not already installed, install the power supplies in the appliance.

To connect AC power to an SSR1200:

  1. Wrap and fasten one end of the ESD wrist strap around your bare wrist, and connect the other end of the strap to the ESD point on the device.
  2. Ensure that the power supplies are fully inserted into the chassis.
  3. Locate the AC power cords shipped with the SSR1200 appliance; the cords have plugs appropriate for your geographical location. See Table 6.
  4. Push the end of the power cord retainer strip into the hole adjacent to the input on the PSU until it snaps into place. Ensure that the loop in the retainer strip faces the input on the PSU (see Figure 2).
    Figure 2: Insert Power Cord Retainer Strip Insert Power Cord Retainer Strip
  5. Press the small tab on the retainer strip to loosen the loop. Slide the loop until there is enough space to insert the power cord coupler through the loop into the input on the PSU.
  6. Insert the power cord coupler firmly into the input on the power supply (see Figure 3).
  7. Slide the loop toward the PSU until it is snug against the base of the coupler.
    Figure 3: Connect an AC Power Cord Connect an AC Power Cord
  8. Press the tab on the loop and draw out the loop into a tight circle.
  9. Repeat Step 4 and Step 8 to insert the second power cord.
  10. If the AC power source outlet has a power switch, set it to the off (O) position.
  11. Insert the power cord plug into an AC power source outlet.
  12. If the AC power source outlet has a power switch, set it to the on (|) position.
  13. Set the power switch on the appliance to the on (|) position.

Power Off the SSR1200

You can power off the SSR1200 in one of the following ways:

  • Graceful shutdown—You can do a graceful shutdown in two ways:

    • Use the Linux poweroff command at the Console. The appliance begins gracefully shutting down the operating system and then powers itself off.

    • Press and hold the Power switch for less than 4 seconds. The appliance begins gracefully shutting down the operating system and then powers itself off.

    CAUTION:

    Use the graceful shutdown method to power off or reboot the appliance.

  • Forced shutdown—Press and hold the Power switch for more than 4 seconds, then release. The appliance immediately powers itself off without shutting down the operating system.

    CAUTION:

    Forced shutdown can result in data loss and corruption of the file system.

    Use the forced shutdown method as a last resort to recover appliance if the appliance operating system is not responding to the graceful shutdown method.
Warning:

Do not press the Power switch while the appliance is shutting down.

To remove power completely from the appliance, unplug the power cord or switch off the power source.

After powering off a power supply, wait at least 10 seconds before turning it back on.

After powering on a power supply, wait at least 10 seconds before turning it off.