TRENDnet N900 User's Guide - Page 26

Renew Ethernet IP, HT Mode, Mixed Mode, Green Field, Channel Bandwidth, Guard Interval

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Page 26 highlights

Renew Ethernet IP Enable this option to allow the TEW-680MB to automatically pass DHCP to connected LAN (wired) clients. HT Mode Mixed Mode: In this mode packets are transmitted with a preamble compatible with the legacy 802.11g/n, the rest of the packet has a new format. In this mode the receiver shall be able to decode both the Mixed Mode packets and legacy packets. Green Field: In this mode high throughput packets are transmitted without a legacy compatible part. Channel Bandwidth Set channel width of wireless radio. 20 Channel Width = 20 MHz 20/40 Channel Width = 20/40 MHz (additional channel provides better performance) Guard Interval Support Short/Long GI, the purpose of the guard interval is to introduce immunity to propagation delays, echoes and reflections, to which digital data is normally very sensitive. Long Auto Using "Auto" option can increase throughput. However, it can also increase error rate in some installations, due to increased sensitivity to radio-frequency reflections. Select the option that works best for your installation. MCS Fix MCS rate for HT rate. (Auto, 0~32) The Modulation and Coding Scheme (MCS) is a value that determines the modulation, coding and number of spatial channels. This parameter represents transmission rate. By default (Auto) the fastest possible transmission rate will be selected. You have the option of selecting the speed if necessary. MPDU Aggregation Select this option to enable MPDU aggregation 26

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26
Renew Ethernet IP
Enable this option to allow the TEW-680MB to automatically pass DHCP to connected
LAN (wired) clients.
HT Mode
Mixed Mode:
In this mode packets are transmitted with a preamble compatible with the
legacy 802.11g/n, the rest of the packet has a new format. In this mode the receiver shall
be able to decode both the Mixed Mode packets and legacy packets.
Green Field:
In this mode high throughput packets are transmitted without a legacy
compatible part.
Channel Bandwidth
Set channel width of wireless radio.
20 Channel Width = 20 MHz
20/40 Channel Width = 20/40 MHz (additional channel provides better performance)
Guard Interval
Support Short/Long GI, the purpose of the guard interval is to introduce immunity to
propagation delays, echoes and reflections, to which digital data is normally very
sensitive.
°
Long
°
Auto
Using “Auto” option can increase throughput. However, it can also increase error rate in some
installations, due to increased sensitivity to radio-frequency reflections. Select the option that
works best for your installation.
MCS
Fix MCS rate for HT rate. (Auto, 0~32)
The Modulation and Coding Scheme (MCS) is a value that determines the modulation, coding
and number of spatial channels.
This parameter represents transmission rate. By default (Auto) the fastest possible
transmission rate will be selected. You have the option of selecting the speed if necessary.
MPDU Aggregation
Select this option to enable MPDU aggregation