TeleWell TW-EA510v3(c) 3G/4G, Руководство пользователя

Страница: 9 / 101

Chapter 2
Product Overview
Standards-Based Technology
The TW - EA510 v3 (c) & 3G/4G Wireless Router utilizes the 802.11n standard. The IEEE 802.11n
standard is an extension of the 802.11g and 802.11b standards. It increases the data rate up to
around 30 0 Mbps within the 2.4GHz band, utilizing OFDM technology. This means that in most
enviro nments, within the specified range of this device, you will be able to transfer large files quickly
or even watch a movie in MPEG format over your network without noticeable delays. This
technology works by transmitting high - speed digital data over a radio wave utilizing OFDM
( O rthogonal F requency D ivision M ultiplexing) technology. OFDM works by splitting the radio signal
into multiple smaller sub - signals that are then transmitted simultaneously at different frequencies to
the receiver. OFDM reduces the amo unt of crosstalk (interference) in signal transmissions. The
TW - EA510 v3 (c) & 3G/4G is backwards compatible with 802.11g and 802.11b devices. This means
that if you have an existing 802.11g or 802.11b network, the devices in that network will be
compatible with 802.11n devices at speeds of up to 11Mbps in the 2.4GHz range.
Installation Considerations
The TW - EA510 v3 (c) & 3G/4G Wireless Router lets you access your network, using a wireless
connection, from virtually anywhere within its operating range. Keep in mind, however, that the
number, thickness and location of walls, ceilings, or other objects that the wireless signals must
pass
Keep the number of walls and ceilings between the TW - EA510 v3 (c) & 3G/4G and other network
devices to a minimum - each wall or c eiling can reduce your TW - EA510 v3 (c) & 3G/4G wireless
product’s range from 3 - 90 feet (1 - 30 meters).
Position your devices so that the number of walls or ceilings is minimized. Be aware of the direct
line between network devices. Position the devices so th at the signal will travel straight through a
wall or ceiling (instead of at an angle) for better reception. Building Materials can impede the
wireless signal - a solid metal door or aluminium studs may have a negative effect on range.
Try to position wire less devices and computers with wireless adapters so that the signal passes
through drywall or open doorways and not other materials. Keep your product away (at least 3 - 6
feet or 1 - 2 meters) from electrical devices or appliances that generate extreme RF (r adio frequency)
noise.
2.1 Important Notes
ü Do not use the TW-EA510v3(c) & 3G/4G in high humidity or high
temperatures.
ü Do not use the same power source for the TW-EA510v3(c) &
3G/4G as other equipment.
ü
Do not open or repair the case yourself. If the TW-EA510 v3(c) &
3G/4G is too hot, turn off the power immediately and have it
repaired at a qualified service center.
ü Avoid using this product and all accessories outdoors.
Warning