Medion High-performance PC X50/X51, Руководство по эксплуатации

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Sitting for long periods without changing your position can be uncomfortable. To minimise the risks of physical discomfort or
damage, correct posture is paramount.
•
General – Alter your position frequently (every 20–30 minutes) and take frequent breaks to avoid fatigue.
• Back – When sitting at your workplace, the backrest of the office chair should be upright or tilted slightly backwards to
supported your back.
• Arms – Your arms and elbows should be relaxed and loose. Keep your elbows tucked in next to your body. Keep your fore-
arms and hands almost parallel to the floor.
• Wrists – When working with the keyboard, mouse or trackball, your wrists should be kept as straight as possible and
should not be bent at an angle greater than 10°.
• Legs – Your thighs should lie horizontally or be tilted slightly upwards. Your lower legs should kept at an angle of approxi-
mately 90° to your thighs. Your feet should rest flat on the floor. Where possible, use a footrest, otherwise, ensure that the
seat is adjusted to the correct height before starting work.
• Head – Your head should be kept straight or inclined slightly forward. Do not work with your head or upper body twisted.
• Hand rest area: 5–10 cm
• Viewing distance: 50 to 70 cm
• Leg room (vertical): 65 cm (min.)
• Leg room (horizontal): 60 cm (min.)
• The top line of the screen should be at eye height or a little below.
5. Connecting
For better orientation, please open out the left-hand inside cover page to fully display the diagrams showing the positions of
the connections described.
PLEASE NOTE!
The devices listed are not necessarily supplied! The connections listed are optional and are not necessarily present
on your PC.
5.1. Connecting the cables
Follow the instructions below to connect your PC correctly and safely:
•
Position the cable so that it cannot be stepped on or tripped over.
• To avoid damaging the cable, do not place any objects on it.
• Do not expose plug connections to impacts/pressure, e.g. from lateral forces. This could cause internal and external dam-
age to the device.
• Do not apply force when connecting cables and plugs and make sure that connectors are the right way round.
• When you disconnect a cable from your device, pull it out by holding the plug and not the cable.
• In order to prevent short-circuits and cable breaks, do not crush or bend cables.
• Connect peripheral devices, such as keyboards, mouse and monitor, etc., only when the PC is switched off to avoid damage
to the PC or the devices. Some devices may also be connected while the PC is running.
This is often the case for USB devices. In all cases, ensure that the information provided in the relevant operating instruc-
tions is observed
.
• Maintain a distance of at least one metre from sources of high-frequency and magnetic interference (TV sets, loudspeak-
ers, mobile phones, DECT telephones, etc.) in order to avoid malfunctions and data loss.
• Please note that only shielded cables that are shorter than 3 metres may be connected to the external interfaces of this PC.
Please only use double-shielded cables for printer cable connections.
• Do not exchange the supplied cable for another one. Use only the supplied cable as this cable has been extensively tested
in our laboratory.
• When connecting your periphery devices, also ensure that you only use the connection cables supplied with those devic-
es.
• Ensure that all connection cables are connected to their corresponding periphery device to avoid any interference radia-
tion. Disconnect any cables that are not required.
• The only devices which may be connected to the PC are those which meet the requirements set out in the EN60950 stand-
ard “Information Technology Equipment – Safety” or the EN60065 standard “Audio, video and similar electronic apparatus –
Safety requirements”.