Safety information

Safety Information includes:

• Audience
• General safety rules
• Safety inspection checklist
• Electrical safety rules
• Lithium battery

Note: See Protecting against ESD damage for more information about safely handling equipment.

Audience

This equipment is intended to be serviced by Avaya trained service personnel only.

General safety rules

Follow these rules to ensure general safety.

• Observe good housekeeping in the area of the system units during and after maintenance.
  • Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the system unit.
  • Keep your tool case away from walk areas so that other people will not trip over it.
• When lifting any heavy object:
1. Make sure you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are too heavy for you.
• Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.
• Before you start the system unit, ensure that other service representatives and the customer’s personnel are not in a hazardous position.
• Do not wear loose clothing that can be trapped in the moving parts of a system unit. Ensure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
• Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately 8 centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Metal objects are good electrical conductors.
• Wear safety glasses when you are working in any conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.
• Reinstall all covers correctly before returning the system unit to service.

 

WARNING! To prevent access to electrical hazards by unauthorized personnel and to ensure continued compliance to international radiated emissions requirements, all captive screws must be securely tightened such that they cannot be loosened without the use of a tool.

Safety inspection checklist

The intent of this checklist is to help you identify potentially unsafe conditions related to this product. Each system unit, as it was designed and built, had required safety items installed to protect users and service personnel from injury. If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether or not you can safely continue without first correcting the problem.

Consider these conditions and the safety hazards they present:

• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock)
• Explosive hazards, such as a damaged monitor face or bulging capacitor
• Mechanical hazards, such as loose or missing hardware

Perform the following safety checks when servicing this unit:

1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Shut down the system and unplug the AC power cords.
3. Check the power cord for:
• A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and frame ground.
• The power cord should be the appropriate type.
• Insulation must not be frayed or worn.
4. Remove the front bezel and top cover.
5. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
6. Check for worn, frayed, or pinched cables.
7. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
8. If you notice any damage, see Replacing system components.

Electrical safety rules

Electrical current from power, telephone, and communication cables can be hazardous. To avoid any shock hazard, you should disconnect all power cords and cables as described in Getting inside the chassis.

Observe the following rules when working on electrical equipment:

• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Disconnect all power before:
  • Performing a mechanical inspection
  • Working near power supplies
  • Removing or installing main units
• Before you start to work on the system unit, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the system unit and to lock the wall box in the off position.
• If you need to work on a system unit that has exposed electrical circuits, observe the following precautions:
  • Make sure that another person, familiar with the power-off controls, is near you. Another person must be there to switch off the power if necessary.
  • Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. This may prevent a current from passing through your body.
  • When using testers, set the controls correctly and use the approved probe leads and accessories for that tester.
  • Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and system unit frames.
• Regularly inspect and maintain your electrical hand tools for safe operational condition. Do not use worn or broken tools and testers.
• Never assume that power has been disconnected from a circuit. First, check that it has been powered off.
• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, non-grounded power extension cables, power surges, and missing safety grounds.
• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and system unit damage.
• Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.
• Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.

If an electrical accident occurs:

• Use caution; do not become a victim yourself.
• Switch off power.
• Send another person to get medical aid.

Lithium battery

The Avaya 3400-family message servers contain a lithium battery that is accessible to service personnel only.

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