NEC 4020, 4620 user manual Safety Precautions, Maintenance & Recommended Use

Models: 4020 4620

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Safety Precautions, Maintenance & Recommended Use

English

FOR OPTIMUM PERFORMANCE, PLEASE NOTE THE

FOLLOWING WHEN SETTING UP AND USING

THE MULTI-FUNCTION MONITOR:

¥DO NOT OPEN THE MONITOR. There are no user serviceable parts inside and opening or removing covers may expose you to dangerous shock hazards or other risks. Refer all servicing to qualified service personnel.

¥Do not spill any liquids into the cabinet or use your monitor near water.

¥Do not insert objects of any kind into the cabinet slots, as they may touch dangerous voltage points, which can be harmful or fatal or may cause electric shock, fire or equipment failure.

¥Do not place any heavy objects on the power cord. Damage to the cord may cause shock or fire.

¥Do not place this product on a sloping or unstable cart, stand or table, as the monitor may fall, causing serious damage to the monitor.

¥When operating the MultiSync monitor with its AC 220-240V power supply in Europe, use a power supply cord provided with the monitor.

¥In UK, use a BS-approved power cord with molded plug having a black (13A) fuse installed for use with this monitor. If a power cord is not supplied with this monitor, please contact your supplier.

¥When operating the MultiSync monitor with a 220-240V AC power source in Australia, use the power cord provided with the monitor. If a power cord is not supplied with this equipment, please contact your supplier.

¥For all other cases, use a power cord that matches the AC voltage of the power outlet and has been approved by and complies with the safety standard of your particular country.

¥Do not place any objects onto the monitor and do not use the monitor outdoors.

¥The inside of the fluorescent tube located within the LCD monitor contains mercury. Please follow the bylaws or rules of your municipality to dispose of the tube properly.

¥Do not bend, crimp or otherwise damage the power cord.

¥If glass is broken, handle with care.

¥Do not cover vent on monitor.

¥Do not use monitor in high temperature, humid, dusty, or oily areas.

¥If monitor or glass is broken, do not come in contact with the liquid crystal and handle with care.

¥Allow adequate ventilation around the monitor, so that heat can properly dissipate. Do not block ventilated openings or place the monitor near a radiator or other heat sources.

Do not put anything on top of the monitor.

¥The power cable connector is the primary means of detaching the system from the power supply. The monitor should be installed close to a power outlet, which is easily accessible.

¥Handle with care when transporting. Save packaging for transporting.

¥Do not hold the display by the bezel when moving or shifting the display.

¥Please clean the holes of back cabinet to reject dirt and dust at least once a year because of set reliability.

¥If using the cooling fan continuously, itÕs recommended to wipe holes a minimum of once a month.

Immediately unplug your monitor from the wall outlet and refer servicing to qualified service personnel under the following conditions:

¥When the power supply cord or plug is damaged.

¥If liquid has been spilled, or objects have fallen into the monitor.

¥If the monitor has been exposed to rain or water.

¥If the monitor has been dropped or the cabinet damaged.

¥If the monitor does not operate normally by following operating instructions.

Recommended Use

¥For optimum performance, allow 20 minutes for warm-up.

¥Rest your eyes periodically by focusing on an object at least 5 feet away. Blink often.

¥Position the monitor at a 90¡ angle to windows and other light sources to minimize glare and reflections.

¥Clean the LCD monitor surface with a lint-free, non-abrasive cloth. Avoid using any cleaning solution or glass cleaner!

¥Adjust the monitorÕs brightness, contrast and sharpness controls to enhance readability.

¥Avoid displaying fixed patterns on the monitor for long periods of time to avoid image persistence (after image effects).

¥Get regular eye checkups.

Ergonomics

To realize the maximum ergonomic benefits, we recommend the following:

¥Use the preset Size and Position controls with standard signals.

¥Use the preset Colour Setting.

¥Use non-interlaced signals.

¥Do not use primary colour blue on a dark background, as it is difficult to see and may produce eye fatigue due to insufficient contrast.

Cleaning the LCD Panel

¥When the liquid crystal panel is stained with dust or dirt, please wipe with soft cloth gently.

¥Please do not rub the LCD panel with hard material.

¥Please do not apply pressure to the LCD surface.

¥Please do not use OA cleaner it will cause deterioration or discolor on the LCD surface.

Cleaning the Cabinet

¥Unplug the power supply

¥Gently wipe the cabinet with a soft cloth

¥To clean the cabinet, dampen the cloth with a neutral detergent and water, wipe the cabinet and follow with a dry cloth.

NOTE: The surface of the cabinet is composed of many types of plastic. DO NOT clean with benzene thinner, alkaline detergent, alcoholic system detergent, glass cleaner, wax, polish cleaner, soap powder, or insecticide. Rubber or vinyl should not be in contact with the cabinet for an extended period of time. These types of fluids and materials can cause the paint to deteriorate, crack or peel.

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NEC 4020, 4620 user manual Safety Precautions, Maintenance & Recommended Use

4020, 4620 specifications

The NEC 4620 and NEC 4020 are significant models in the realm of telecommunications, particularly noted for their sophistication and capabilities in network management and communication systems. These systems have been crucial in advancing telecommunications infrastructure for businesses and organizations, delivering efficient solutions to manage calling patterns and other communication functions.

The NEC 4620 is renowned for its robust performance and versatility. Designed for small to medium-sized enterprises, this model integrates voice and data communication seamlessly. One of its main features is the support for both legacy telephone systems and modern VoIP technology, allowing businesses to transition gradually while ensuring no disruption in service. It also supports a wide range of telephony applications, enhancing its functionality and usability across various business environments.

A standout characteristic of the NEC 4620 is its scalability. It can be easily expanded to accommodate the growing needs of an organization, providing investment protection as businesses evolve. The system also boasts advanced call handling features, including call forwarding, voicemail, and conferencing capabilities, ensuring efficient communication within and outside the organization.

On the other hand, the NEC 4020 targets larger enterprises with more demanding communication needs. It offers higher capacity and more extensive integration options. This model is built with advanced technologies that support unified communications, allowing seamless collaboration among team members. One of its key technological advancements is its ability to integrate with various third-party applications, providing organizations with customized solutions that cater to their unique workflow and operational requirements.

Both the NEC 4620 and 4020 embrace the concept of unified communications, ensuring that voice, video, and data are effectively converged. This capability not only enhances productivity but also promotes better customer service through improved response times and communication transparency. Additionally, these systems are equipped with robust security features, ensuring that sensitive communication data remains protected from unauthorized access.

With their state-of-the-art technologies and features, the NEC 4620 and 4020 represent a significant investment in the future of organizational communication. As businesses increasingly rely on advanced telecommunications systems to drive growth and efficiency, these models stand out as premier solutions that empower organizations to navigate the complexities of modern communication effectively.