Table Of Contents

Cisco Unified Videoconferencing 3545 MCU Safety

Electrical Safety for the 3545 MCU

Grounding

High Voltage

Power Supply

ESD Procedures for the 3545 MCU

Cisco Unified Videoconferencing 3545 MCU Safety

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This section describes the following topics:

•Electrical Safety for the 3545 MCU

•ESD Procedures for the 3545 MCU

Electrical Safety for the 3545 MCU

To avoid an electric shock or damage to the Cisco Unified Videoconferencing 3545 System, servicing should be performed by qualified service personnel only.

To reduce the risk of damaging power surges, Cisco recommends installing an AC surge arrestor in the AC outlet from which the Cisco Unified Videoconferencing 3545 System is powered.

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Warning Changes or modifications to the device that are not approved by the party responsible for compliance could void the user's authority to operate the equipment.

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Warning There is a danger of explosion if the cPCI board battery is incorrectly replaced. Replace with the same type, or an equivalent type recommended by the manufacturer. Dispose of used batteries only according to manufacturer instructions.

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Grounding

The power cable of the Cisco Unified Videoconferencing 3545 System should only be connected to a power outlet that has a protective earth contact. Do not use an extension cord that does not have a protective conductor (ground). The Cisco Unified Videoconferencing 3545 chassis can become dangerous if you interrupt any of the protective conductors (grounding) or disconnect any of the protective earth terminals.

High Voltage

Disconnect the Cisco Unified Videoconferencing 3545 chassis from the power line before removing the cover. Avoid any adjustment, maintenance, or repair of an opened chassis under voltage. These actions should only be carried out by a skilled person who is aware of the dangers involved. Capacitors inside the chassis may still be charged, even if the unit has been disconnected from the power source.

Power Supply

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Caution Risk of electric shock and energy hazard. Disconnecting one power supply disconnects only one power supply module. To isolate the unit completely, disconnect all power supplies.

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ESD Procedures for the 3545 MCU

To prevent damage to Cisco element boards by random electrostatic discharge (ESD), the use of wrist straps is highly recommended.