The
Fi-Wi Opto-electric cannula
(Fig.
) contains an LED connected to a single optical fiber, allowing light to be sent into
the region of interest. The cannula also contains the electrodes, positioned around the optical fiber, up to a maximum of
4. Electrode-only and optical-only cannulas are available on request.
• The
Cannula connector
(Fig.
) links the cannula and the headstage, transmitting data and power.
• The
Recording Electrodes
receive electrical signal from the brain region in which their tips are located.
• The cannula also includes a single
Reference electrode
that can be intra- or extra-cranial.
• The
Optical Fiber
guides light from an LED integrated into the cannula.
Much care should be taken when unpackaging the
Fi-Wi Opto-electric Cannula
. The
Electrodes
and the
Optical Fiber
are very fragile. While removing the protective cap, ensure the movement used is parallel to the axis of the
Optical Fiber
.
Removing the cap with a gentle unscrewing motion can help keep the cap in the right orientation.
1.1.3 Electrophysiology Console
Figure 1.4:
Electrophysiology Console, Front
The
Electrophysiology Console
(Fig.
) allows control of the different elements, as well as reception and transmission of
information from the control computer.
• The
ON/OFF
(Fig.
) switch activates the console.
• The
LCD Screen
(Fig.
) shows the status of the system’s channels.
• The
DIGITAL I/O
(Fig.
) ports control, send and receive 0-5 V TTL signals.
• The
HDMI
(Fig.
) port acquires digital signals and digital communications via a custom pinout HDMI connector.
• The
Analog-Out
(Fig.
) ports send a variable
±
5 V signal.
• The
Analog-In
(Fig.
) ports acquire analog signals coming from various inputs.
• The two
Antennas
(Fig.
) connect to the
SMA Connectors
(Fig.
) and allow wireless connection to the head-
stages.
• The
12 VDC power input
(Fig.
) connects to the 12 VDC power supply.
• The
USB Computer Connection
(Fig.
) port allows connection to a computer using a USB-A/USB-B cable.
• The
USB Charging Port
(Fig.
) is used by the
Fi-Wi Headstage Charger
to recharge the headstage battery. It is
best to connect the charger to the console using the
USB-A Male/Female cable
.
• The
Service
(Fig.
) port is a USB-B input through which the firmware of the device can be updated.
Chapter 1. System Overview
5
