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| Analog
Input Box (AIB) |
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| The
standard ActiveTwo AD-box measures signals from electrodes or other
sensors connected to the subject. But in some measurements setup,
one also needs to measure additional analog signals from sources
that needs to be kept isolated from the subject (for example because
the sources are mains powered equipment). For these applications,
BioSemi offers a sophisticated solution in the form of an extra
Analog Input Box (AIB). |
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| The
subject AD-box and the AIB are daisy chained by optical fibers:
a fiber-optic data link goes from the subject AD-box to the AIB,
and a second optical fiber goes from the AIB to the receiver which
is located in the PC. The AIB adjusts its sample rate to the signal
received from the subject AD-box, so the sample rates of both boxes
are synchronized. The subject AD-box acquires up to 256 channels
from electrodes and other sensors, the AIB adds up to 32 channels
to the data stream, and the total of 288 channels is processed by
the PC. This setup allows all the 288 channels (from different sources)
to be handled by one integrated software program, and to be stored
in a single BDF file. Standard, the AIB is equipped with 8 channels
(4 differential). |
| Here
you can find the pin connection layout of the 37 pin Sub-D connector
on the front of the AIB. |
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