Tenda i27 User Manual

Document version: V1.0
49
Parameter
Description
Channel Bandwidth
It specifies the wireless channel bandwidth of the AP. This parameter can be set if the
AP works in 802.11 b/g/n, 802.11b/g/n/ax, 802.11ac, 802.11a/n, or 11a/n/ac/ax mode
and Lock Channel is not selected.
⚫
20 MHz: It indicates that the AP can use only 20 MHz channel bandwidth.
⚫
40 MHz: It indicates that the AP can use only 40 MHz channel bandwidth.
⚫
20/40 MHz: Only available for 2.4 GHz. It indicates that the AP automatically adjusts
its channel bandwidth to 20 MHz or 40 MHz according to the ambient environment.
⚫
80 MHz: Only available for 5 GHz. It indicates that the AP can use only 80 MHz
channel bandwidth.
⚫
160 MHz: Only available for 5 GHz. It indicates that the AP can use only 160 MHz
channel bandwidth.
⚫
20/40/80/160 MHz: Only available for 5 GHz. It indicates that the AP automatically
adjusts its channel bandwidth to 20 MHz, 40 MHz, 80 MHz, or 160 MHz according to
the ambient environment.
Extension Channel
It is used to determine the operating frequency band of this device when the device
uses the 40 MHz channel bandwidth in 11n mode for 2.4 GHz.
Lock Channel
It is used to lock the channel settings of the AP. If this parameter is selected, channel
settings including Country/Region, Network Mode, Channel, Channel Bandwidth, and
Expansion Channel cannot be changed.
Transmit Power
It specifies the transmit power of the AP.
A greater transmit power of the AP offers broader network coverage. You can slightly
reduce the transmit power to improve the wireless network performance and security.
Lock Power
It specifies whether the current transmit power settings of the AP can be changed. If it
is selected, the settings cannot be changed.
Preamble
A preamble is a group of bits located at the beginning of a packet to enable a receiver
of the packet to perform synchronization and prepare for receiving data.
By default, the Long Preamble option is selected for compatibility with old network
adapters installed on wireless clients. To achieve better synchronization performance
of networks, you can select the Short Preamble option.
Short GI
Short Guard Interval.
There is a delay on the receiving side due to multipath and other factors during the
wireless signal transmission in space. If the subsequent data block is transmitted too
quickly, it will interfere with the previous data block, and the short guard interval can
be used to circumvent this interference. Short GI helps to increase the wireless
throughput by 10%.

Tenda i27 Specifications

General

Antenna type	External
Antennas quantity	2
Antenna gain level (max)	4 dBi
2.4 GHz	Yes
MIMO type	Multi User MIMO
Number of users	254 user(s)
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11ax, IEEE 802.11b, IEEE 802.11g, IEEE 802.11k, IEEE 802.11n, IEEE 802.11v, IEEE 802.3at
Virtual LAN features	Tagged VLAN
Spread spectrum method	OFDMA
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Maximum data transfer rate	2976 Mbit/s
Maximum data transfer rate (5 GHz)	2402 Mbit/s
Maximum data transfer rate (2.4 GHz)	574 Mbit/s
Power consumption (max)	14.04 W
Placement	Ceiling, Wall
Product color	White
Security algorithms	SSID, WEP, WPA, WPA-PSK, WPA2, WPA2-PSK
Number of SSID supported	8
Service Set Identifier (SSID) features	Hidden SSID
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	-10 - 45 °C
Operating relative humidity (H-H)	10 - 90 %
USB 2.0 ports quantity	-
Ethernet LAN (RJ-45) ports	1

Weight and Dimensions

Depth	38 mm
Width	178 mm