User's Manual

Table Of Contents
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1.11 Link quality
The Link Quality Index (LQI) is an average percentage that should not be below 30%.
It is displayed when the mouse hovers over a node in the SysMon Online Network
view; see example in the screenshot below. See section 3.2 Installing a gateway for
information about how to log on to SysMon and find the Online Network view.
Note: The LQI value which is shown when the mouse hovers over a node is not an
instantaneous value but an average; the last instantaneous value, with timestamp,
is however shown within parantheses after the average. To get an instantaneous
value of the LQI, right click on a router or endnode in the SysMon Online Network
view and choose Get User Description.
Figure 5
The LQI is valid for the link between the node and its parent.
If the LQI is below 30%, the dot in front of the node in SysMon is yellow; see
example in Figure 6.
Figure 6
If the LQI is below 15%, the dot in front of the node is SysMon is red; see example
in Figure 7.
Figure 7
1.12 Abbreviations
In the rest of this user manual, the following abbreviations are used:
GW = gateway
RT = router
EN = endnode
PAN = personal area network