3.2.1 Channels
The console has three different types of channels. The
Digital I/O
(Section
) channels allow the input and output of
TTL signals. The
Analog Output
(Section
) channels allow the output of analog signals. The
Analog Input
(Section
) channels allow the input of analog signals. Any number of channels may be added using the
Add channel
button
on the
Configuration
tab (Section
). The
Channel(s) configuration
window contains the following elements shared
by most channel types.
Figure 3.7:
Channel(s) configuration window, Digital I/O input
1. The
Channel Types
(Fig.
) are selected in the box on the left side of the window. Selecting the
Digital I/O
,
Analog-Out
or
Analog Input
icons will display the parameters to each respective
Channel type
on the right side
of the window.
2. The
Channel Options
(Fig.
) include the
Channel
drop-down list and the channel
Mode
list.
a) The
Channel
identifies which of the 4 channels available for each channel type is currently being modified.
The channel can be changed by selecting a new one from the drop-down list.
b) The
Mode
identifies the type of signal sent (for output channels) or the way the signal is measured (for input
channels). The specifics of these choices are defined in the section for each channel type.
3. The
Trigger Options
(Fig.
) define the trigger methods. These options include the trigger
Source
and
Mode
.
a) The
Source
trigger option allows the choice of a
Manual Trigger
(activated by a user) or an
Input
trigger,
coming from an input on a
Digital I/O
channel.
b) The
Mode
defines how the trigger activates a sequence. This includes input sequences, which can be trig-
gered/gated by an outside source.
• In
Triggered
mode, the sequence is started manually or by a trigger source from another digital input
channel. Once the trigger source is received, the sequence will continue until the end or until
Stop
is
pressed.
• In
Gated mode
, the sequence will play as long as there is a high TTL signal (4 V or more) on the input
modulation BNC. This signal comes from a different light source or device driver. When the TTL signal is
Chapter 3. Doric Neuroscience Studio
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