User's Manual

Table Of Contents
8 Advanced Usage with Multiple Units
In most research scenarios one tablet/computer connects to one Tobii Glasses 2 Recording Unit. There are scenarios where
one would like to connect one tablet to multiple Recording Units, or multiple tablets to one or more Recording Units.
The Recording Unit works as a network access point and multiple tablets running Tobii Glasses Controller Software can con-
nect to it simultaneously. The opposite, one tablet/computer connected to multiple Recording Units, is however limited by the
number of network hardware devices in the computer. To connect multiple Recording Units to one tablet/computer, a router or
switch must be used, along with Ethernet cables between the Recording Units and the router/switch. In this case the switch be-
comes the access point rather than the Recording Units.
Known issues when connecting multiple tablets/computers to the same Recording Unit:
If commands are sent from several instances of Tobii Glasses Controller Software to the same Recording Unit, the Re-
cording Unit may receive conflicting instructions and may stop reacting.
The bandwidth may be insufficient to allow for several instances of Tobii Glasses Controller Software to allow live view-
ing of an ongoing recording.
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8 Advanced Usage with Multiple Units
Tobii Glasses 2 Eye Tracker Users manual v.1.0.2 - en-US