Poll - Info Ratio; Scan Channels; Temperature Range - Opticon ESL Server Manual

Poll - Info Ratio

6.1.5.
The poll info ratio determines how often ESLs will automatically send their current status and
settings to the base stations. By default the ESLs will transmit this information once every 40
polls, so a ratio of 1:39.
The status and information of an ESL is also requested immediately by selected un ESL in the
ESL-tab. This will cause the base station to request the settings the next time this ESL polls for
data.
The poll info ratio is set to a relative high value, because settings and status usually don't vary a
lot. Also sending settings and status information uses more bandwidth and consumes more power
than regular polls for data.

Scan channels

6.1.6.
Once an ESL has associated (connected) to a base station, it operates on a single RF channel.
However when it's not yet connected to a base station, the ESL will automatically scan a range of
RF-channels for base stations. The range of RF channels that an ESL will scan for base station is
configurable. All channels in the range of channel 11 to 26 can be scanned by adding the channel
in the dash-separated list of channels.
By default the channels 11, 15, 20, 25, 26 are enabled. Channel 11 can't be disabled to make
sure that when an ESL that is not associating to any base station and its RF channel range is
unknown, it can always be retrieved by configuring a nearby base station to channel 11.

Temperature range

6.1.7.
Configures the temperature range at which the ESL is installed. Because e-paper displays
become slower at low temperature, lowering the temperature range compensates for this to avoid
the display not updating correctly.
Only use this feature when the display is not updating correctly under low temperatures,
because lowering the temperature range increases power consumption, because it takes longer
to update the display. Also be aware that low temperatures decrease the battery capacity and
thereby also the battery life time.
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Opticon ESL
ESL Server manual
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