Chapter 1
Preparation — Precautions for use
20 - ENGLISH
Notes on Using Wireless Connection
Wireless connection function of the projector uses radio waves in the 2.4 GHz band.
A radio station license is not required, but be sure to read and fully understand the following items before use.
The wireless module (Model No.: ET-WML100) of optional accessories must be installed when you want to use
the wireless LAN function of this projector.
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Do not use near other wireless equipment.
The following equipment may use radio waves in the same band as the projector.
When the projector is used near these devices, radio wave interference may make communication impossible, or
the communication speed may become slower.
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Microwave ovens, etc.
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Industrial, chemical and medical equipment, etc.
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In-plant radio stations for identifying moving objects such as those used in factory manufacturing lines, etc.
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Designated low-power radio stations.
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If at all possible, avoid the use of cellular phones, TV sets or radios near the projector.
Cellular phones, TV sets, radios and similar devices use different radio bands from the projector, so there is no
effect on wireless communication or the transmission and reception of these devices. However, radio waves from
the projector may produce audio or video noise.
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Wireless communication radio waves cannot penetrate steel reinforcements, metal,
concrete, etc.
Communication is possible through walls and floors made from materials such as wood and glass (except glass
containing wire mesh), but not through walls and floors made from steel reinforcements, metal, concrete, etc.
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Avoid using the projector in locations prone to static electricity.
If the projector is used in a location prone to static electricity, such as on a carpet, the wireless LAN or wired LAN
connection may be lost.
If the static electricity or noise make it impossible to establish a connection with the LAN, please press the power
button on the remote control or the control panel to power off the projector, and eliminate the source of static
electricity or noise, then turn on the projector.
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Using the projector outside the country
Note that depending on countries or regions there are restrictions on the channels and frequencies at which you
can use the wireless LAN.
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Available wireless LAN channels
The channels (frequency range) that can be used differ according to the country or region. Refer to the table
below.
Country or region
Standard
Channels used
Frequency band (Center frequency)
Global
IEEE802.11b/g/n
1 - 11 channel
2.412 GHz - 2.462 GHz
The frequency and channel differ depending on the country.
Please use the wireless LAN feature in compliance with the laws of each country.
Note
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The wireless module (Model No.: ET-WML100) of the optional accessories is required if you want to use the wireless LAN
function of this projector.
