User guide

45 Mbps Backhaul User Guide
Issue 3, December 2004 Page 38 of 113
Figure 13 Configuration Page
While the majority of the system configuration is entered during installation and should never require changing,
this page offers the system administrator the ability to change the basic system parameters for both the wireless
and Ethernet components.
Link Name User defined identity for the unit (max 63 characters).
Link Location Can be used as a generic scratch pad to describe the location of the equipment or any other
equipment related notes (max 63 characters).
Link Symmetry By default Link Symmetry of a Point-to-Point link is ‘Symmetrical Data Rate (1:1)’ in this
configuration the ratio of time the wireless link spends transmitting and receiving is equal. When Link
Symmetry is configured to Asymmetric Data Rate (2:1) the wireless link Master will spend twice as long
transmitting as receiving. It should be noted that data rate available to the end users might not follow these
ratios exactly. The exact data rates will be dependant on the prevailing modulation modes.
Target Receive Modulation Mode This is the maximum mode the unit will use as its adaptive modulation. The
modulation modes available are:
• BPSK 1 / 2
• QPSK 1 / 2
• QPSK 2 / 3
• 16QAM 1 / 2
• 16QAM 3 / 4
• 64QAM 2 / 3
• 64QAM 3 / 4
• 64QAM 7 / 8