Link - DragonWave Horizon COMPACT Plus Product Manual

DragonWave Inc.
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11.3 Signs of a Healthy Link
You can be confident that a link is properly aligned and free of problems if the following readings are
obtained during a Telnet or Web interface session with each end of the link :
No alarms – use the CLI command get alarms and press Enter to return a list of current alarms –
should be none that cannot be explained by network status
Received signal level (RSL) within ±3 dB of link budget figure in clear weather. Use the CLI
command get modem statistics and press Enter to obtain the RSL reading. The Unchannelized
power reading should be within 6 dB of the RSL reading. If the Unchannelized power drops
below -75 dB, then it is likely that there is no signal being presented at the radio portion of
Horizon Compact Plus. Check alarms.
Eb/No of 19 dB or higher – use the CLI command get modem statistics and press Enter to
display the Eb/No value
Signal to Noise Ratio (SNR) of 24 dB or higher – use the CLI command get modem statistics
and press Enter to display the SNR value
Equalizer Stress typically between 20 and 30, but never more than 150 - use the CLI command
get modem statistics and press Enter to display the Equalizer stress value
Rx Block Error Rate 0.00e+00 – use the CLI command get traffic statistics and press Enter to
display the Rx Block Error Rate. Rx Block errors are an indication of loss of data frames. Note
that there are residual Rx Block errors as a result of the alignment process.
Transmit power typically set at the maximum for the radio band used – use the CLI command get
transmit power and press Enter to return the configured transmit power and the actual transmit
power
All sections operational – use the CLI command get health and press Enter to return the health
status of all three sections of the system
The readings obtained using the CLI commands during a Telnet session can also be retrieved using the
Web interface. All items listed here are available on the left-hand pane of the Web interface and appear
on each Horizon web page.
Horizon Compact Plus Release 1.0.1
Wireless Ethernet Product User Manual – Volume 1