TDT RZ2, Manual

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System 3 7-37
MS4/MS16 Stimulus Isolator
setting any channel in a bank to both Stimulate and Reference mode turns off that
entire bank of channels.
An ACC16 AC Coupler is supplied with all MS4/MS16 modules and may be
connected directly to the Stim Output connector to block any DC current bias present
on the Stim Output lines (this problem primarily affects researchers using electrodes
with impedance of more than ~100 kOhms) when set in stimulate mode.
Note: When using the ACC16 you will NOT be able to deliver the MAXIMUM current.
Stim Lights
A Stim Light (one for each channel) indicates that a Stim Output channel is in use
as a stimulus output. The Stim Lights are located above the Stim Output connector
and are numbered 1 - 16, to indicate the active channel number. The LEDs will
flash once every three seconds to indicate any bank of channels that has been
powered off.
Ref Lights
A Ref Light (one for each channel) indicates that a Stim Output channel is in use
as a reference. The Ref Lights are located above the Stim Output connector and are
numbered 1 - 16, to indicate the active channel number.
Status Lights
Sync: Flashes once a second when the stimulator is not connected to
a base station and glows steady when it is correctly connected.
Stim Ref: When lit, indicates that the stimulator has been configured to use
a global reference.
Battery: When lit, indicates when the stimulator's onboard battery is low.
The battery voltage decreases rapidly once the battery low light
is on.
Fast: charging
Slow: low battery
High Voltage: When lit, indicates that the stimulator is correctly connected to
the designated Battery Pack.
Solid: correct working voltage
Flashing: low voltage
Digital Output (Control Outputs)
The Control Output connector provides access to the stimulator’s 16 channels of
Word addressable digital output. These outputs can control the relays on the SH16
switching headstage or other digital output device (maximum current 40 mA,
maximum voltage 3.3 Volts).