ZyXEL Communications NWA-3160 - V3.70 Manual page 142

Chapter 8 Wireless Screen
Table 26 Wireless: MBSSID
LABEL
Beacon Interval
DTIM
Output Power
Rates Configuration This section controls the data rates permitted for clients.
MCS Table
142
DESCRIPTION
When a wirelessly networked device sends a beacon, it includes
with it a beacon interval. This specifies the time period before the
device sends the beacon again. The interval tells receiving devices
on the network how long they can wait in low-power mode before
waking up to handle the beacon. This value can be set from 30ms to
1000ms. A high value helps save current consumption of the access
point.
Delivery Traffic Indication Message (DTIM) is the time period after
which broadcast and multicast packets are transmitted to mobile
clients in the Active Power Management mode. A high DTIM value
can cause clients to lose connectivity with the network. This value
can be set from 1 to 100.
Set the output power of the NWA in this field. If there is a high
density of APs in an area, decrease the output power to reduce
interference with other APs. Select one of the following 100%(Full
Power), 50%, 25%, 12.5% or Minimum. See the product
specifications for more information on your NWA's output power.
Note: Reducing the output power also reduces the NWA's
effective broadcast radius.
For each Rate, select an option from the Configuration list. The
options are:
• Basic (1~11 Mbps only): Clients can always connect to the
access point at this speed.
• Optional: Clients can connect to the access point at this speed,
when permitted to do so by the AP.
• Disabled: Clients cannot connect to the access point at this
speed.
The MCS Rate table is available only when 802.11n/g or
802.11n/a is selected as the 802.11 Radio Mode.
IEEE 802.11n supports many different data rates which are called
MCS rates. MCS stands for Modulation and Coding Scheme. This is
an 802.11n feature that increases the wireless network
performance in terms of throughput.
For each MCS Rate (0-15), select either Enable (default) to have
the NWA use the data rate. Select Disable if you do not want the
NWA to use the data rate.
NWA-3160 Series User's Guide