DCN EAP280-L Instrukcja szybkiej instalacji - Strona 6
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Product Overview
EAP-280-L is new-generation 802.11n-based high-performance
gigabit wireless access points (APs) launched by Digital China
Networks Co., Ltd. (hereinafter referred to as DCN) for industrial
users. It provides a wireless access rate equivalent to at least six
times the rate available on a conventional 802.11a/b/g network,
and offers wider coverage.
While completely taking into consideration important factors,
such as wireless network security, radio frequency (RF) control,
mobile access, quality of service (QoS) guarantee, and seamless
roaming, the EAP280-L may be used with DCN wireless ACs to
perform data forwarding, security, and access control of wireless
users.
The EAP280-L operates in a 2.4 GHz band and employs
technologies such as multiple-input multiple-output (MIMO) and
orthogonal frequency division multiplexing (OFDM), providing a
data transmission rate of at most 300 Mbps .
Featuring flexible installation, the EAP280-L may be installed on
the wall, desk top, or ceiling. The EAP280-L supports power over
Ethernet (PoE). The EAP280-L is a series of high-rate wireless
APs preferred in various application environments for purposes
such as campus WLAN access, campus coverage, and ISP' hot
spot coverage.
Highlights
High-Performance and High-Reliability Wireless
Network
►
High-speed wireless broadband access
The EAP280-L supports the 802.11bgn standard and provides
an access bandwidth up to 300 Mbps.
►
High-Performance RF characteristics
Professional optimized design is employed for the RF module
of the EAP280-L, so that a single antenna port supports 24
dBm transit power at all rate levels, thereby improving wireless
coverage in high-rate access scenarios.
►
Automatic emergency mechanism of APs
In a centralized network architecture where fit APs and a wireless
AC are deployed, the APs will be unable to operate normally when
the wireless AC is down and then the entire wireless network
will crash. DCN wireless APs support an automatic emergency
mechanism. This mechanism enables an AP to intelligently detect
links. When detecting that the wireless AC is down, the AP quickly
switches its operating mode so that it may continue to forward
data while enabling new users to access the network. This
mechanism attains high availability in the entire wireless network
and really helps wireless users to be always online
►
Broad operating temperature range
Thanks to deliberate hardware design and the selection of
dedicated components operating in a broad temperature
range, DCN smart APs may operate in an environment with its
temperature ranging from 0°C to +50°C
►
Dual-OS backup mechanism
DCN smart APs support a dual-OS backup mechanism. When an
AP fails to start from the active OS, it can immediately start from a
standby OS, thereby improving the long-term running reliability of
equipment in an adverse environment.
Wireless Network of Intelligent Control and Automatic
Perception
►
Only 11n access control mechanism
Since 802.11n is downward compatible with the 802.11a/b/g
protocol, generally 802.11a/b/g users can also access an 802.11n
wireless access device. When this compatibility is provided,
however, users with 802.11n access capability will experience
performance degradation to a certain extent. On DCN smart APs,
a certain RF channel may be set to only 11n access mode so that
802.11n users have guaranteed bandwidths.
►
Intelligent RF management
DCN smart APs may be used with a wireless AC to perform
automatic power and channel adjustment. They employ particular
RF detection and management algorithms to attain a better
RF coverage effect. When the signals of an AP are interfered
by strong external signals, the AP may automatically switch
to an appropriate operating channel under the control of the
AC to avoid such interference, thereby guaranteeing wireless
network communications. The system also supports wireless
network blackhole compensation. When an AP on the network
accidentally stops operating, the RF management function of the
AC compensates the resulting blind area of signals so that the
wireless network can still operate normally.
►
Intelligent control of terminals based on airtime
fair
When some outdated 802.11b and 802.11g terminals are used
on a wireless network or some terminals are far way from APs,
negotiation rates will be low, causing a large number of users to
experience a long WLAN access delay, low rates, or poor overall
AP performance. The AP performance problem in a lowrate
terminal access environment, however, cannot be resolved by
simply employing rate control and traffic shaping. DCN smart APs
have essentially resolved this problem by using intelligent control
of terminals based on airtime fairness, ensuring that a user can
always enjoy the same joyful WLAN experience in the same
location, no matter what type of the terminal the user is holding.
The intelligent control of terminals based on airtime fairness
greatly improves the performance of both the client and the entire
network. It enables all clients with high data transmission rates
to attain strikingly higher performance while low-rate clients are
almost not affected at all. The performance will be even more
obviously higher on an open wireless network. Once high-rate
clients finish data transmission, fewer clients will be transmitting
data on the wireless network. In this case, there will be less
contention and retry on the network, thereby greatly improving
overall AP performance.
EAP280-L