User's Manual
Table Of Contents
- BreezeACCESS 4900 System Manual
- About This Manual
- Contents
- Figures
- Tables
- Chapter 1 - System Description
- Chapter 2 - Installation
- Chapter 3 - Commissioning
- Chapter 4 - Operation and Administration
- Working with the Monitor Program
- Menus and Parameters
- Main Menu
- Info Screens Menu
- Unit Control Menu
- Basic Configuration Menu
- Site Survey Menu
- Advanced Configuration Menu
- IP Parameters
- Air Interface Parameters
- ESSID Parameters
- Frequency Definition Parameters
- Frequency Definition Submenu in AU
- Frequency Definition Submenu in SU
- Best AU Parameters (SU)
- Scanning Mode (SU only)
- Power Control Parameters
- Antenna Gain
- Cell Distance Parameters (AU only)
- Arbitration Inter-Frame Spacing (AIFS)
- Maximum Number of Associations (AU only)
- Wireless Link Trap Threshold (AU only)
- Spectrum Analysis
- Lost Beacons Transmission Watchdog Threshold
- Disassociate (AU only)
- Network Management Parameters
- Bridge Parameters
- VLAN Support
- Ethernet Broadcast Filtering (SU only)
- Ethernet Broadcast/Multicast Limiter
- Bridge Aging Time
- Broadcast Relaying (AU only)
- Unicast Relaying (AU only)
- MAC Address Deny List (AU only)
- Add MAC Address to Deny List
- Remove MAC Address from Deny List
- Roaming Option (SU only)
- Ports Control (SU only)
- Show Bridge Parameters
- Performance Parameters
- Service Parameters
- Security Parameters
- Appendix A - Software Version Loading Using TFTP
- Appendix B - File Download and Upload Using TFTP
- Appendix C - Using the Set Factory Defaults Utility
- Appendix D - Preparing the Indoor to Outdoor SU Cable
- Appendix E - Supported MIBS and Traps
- Appendix F - Parameters Summary
- Appendix G - Using the Feature License Web Application
- Appendix H - Troubleshooting
Chapter 4 - Operation and Administration
Table 4-10: Recommended Maximum Modulation Level
SNR Maximum Modulation Level
SNR > 23 dB 8
21 dB 7 < SNR < 23 dB
16 dB < SNR < 21 dB 6
13 dB < SNR < 16 dB 5
10 dB < SNR < 13 dB 4
8 dB < SNR < 10 dB 3
7 dB < SNR < 8 dB 2
6 dB < SNR < 7 dB 1
4.2.6.5.6
m in
on
. The higher the value of this
s the weight of history in the formula.
weight for history, meaning that average
4.2.6.5.7
Average SNR Memory Factor
The Average SNR Memory Factor defines the weight of history (value of last
calculated average SNR) in the formula used for calculating the current average
SNR for received data frames. This average SNR is used by the ATPC algorith
the AU and is also included in the Adaptive Modulation Algorithm informati
messages transmitted by the AU and the SU
parameter, the higher i
Available values: -1 to 32. -1 is for no
SNR equals the last measured SNR.
Default value: 5
Number of HW Retries
The Number of HW Retries parameter defines the maximum number of times that
an unacknowledged packet is retransmitted. When the Adaptive Modulation
Algorithm is disabled, a frame will be dropped when the number of unsuccessful
retransmissions reaches this value. For details on the effect of this parameter
when the Adaptive Modulation Algorithm is enabled, refer to section 4.2.6.5.9
.
The available values range is from 1 to 15.
The default value is 10.
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