Wilan LIBRA 5800 AP, User Manual

Page: 40 / 156

Configuration
40 Libra 5800 Series User Guide
Setting the Sector ID
Each Libra unit can have a Sector ID to identify its AP/Base within the network. This prevents Libra
units from accessing different APs which may have the same Center Frequency.
➧
To set the Sector ID
1. Move the cursor to the
Sector Id [0..31]
field and press Enter . The entry field highlights.
2. Type a unique number for the Sector ID and press Enter .
3. Reboot the system to effect the changes unless there are more changes you would like to make
at this time. To do this move the cursor down to the line, "Activate changes and reboot" and press
Enter
Setting the Synchronization ID
Because of OFDM’s superior multipath performance it is possible for the Libra to falsely synchronize
on an AP from a different sector operating at the same frequency. In order to avoid this type of error,
the APs and Libras of each sector can have one of two possible OFDM synchronization patterns.
These patterns are orthogonal, thus a Libra with a given Synchronization ID will never synch to an
AP with the other synch. Every Libra in the sector must have the same Synchronization ID as the AP
of that sector.
➧
To set the Synchronization ID
1. Move the cursor to the
Synchronization Id [0..1]
field and press Enter . The entry field
highlights.
2. Type a 0 or 1 to select the Synchronization ID and press Enter . Factory default is zero (0).
3. Reboot the system to effect the changes unless there are more changes you would like to make
at this time. To do this move the cursor down to the line, "Activate changes and reboot" and press
Enter .
Radio Configuration:
Setting the Modulation Type
The OFDM Modulation Type can be selected from among the following possible values: "QAM 16",
"QPSK" and "BPSK". The selected type will be added to the next superframe transmitted.
➧
To set the Modulation Type
1. Move the cursor to the
Modulation Type
field and press Enter . The field highlights.
2. Select from the list using the up and down arrow keys the Modulation type and press Enter. The
possible options are: QAM 16, QPSK, and BPSK. The new modulation type is applied to the next
superframe to be transmitted.
3. Reboot the system to effect the changes unless there are more changes you would like to make
at this time. To do this move the cursor down to the line, "Activate changes and reboot" and press
Enter