Read this section before beginning any procedure. For your safety and the proper maintenance and operation of the DS4000/DS4001, please follow these precautions when setting up this device.

• Follow all cautions and instructions marked on the equipment.
• Ensure the voltage and frequency of your power source match the voltage and frequency noted on the system's electrical rating label.
• Never insert any objects through openings in the chassis. Dangerous voltages, and/or moving parts may be present. Conductive external objects could produce a short circuit that could damage the system or cause electric shock, resulting in serious personal injury.
• In order to not exceed operational temperature guidelines, do not block or cover the openings of your system. Never place a product near a radiator or heat register. Failure to follow these guidelines may cause overheating and affect the reliability of the device.
• Do not drop the product or subject it to physical shock.
• Keep liquids away from the system.
• When shipping the product, pack it inside the original or equivalent packaging and ship on a pallet.
• Celestica does not assume any responsibility for problems caused by unauthorized repairs or replacement.
• When using optical transceivers, do not stare directly at the fiber bore when the switch is connected to power. Doing so may cause eye damage.
• Keep flammable items away from the product.
• Inspect and maintain the site and the system regularly. Failure to do so may reduce the lifespan of this system and possibly void the warranty.