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Dionex Reagent-Free Controller
C.
TTL Control
The two TTL input connectors (
can be connected to the TTL outputs of a controlling device (for example the
pump, combination pump/detector, or DX-120). The controlling device activates
the TTL to turn on the Dionex RFC function.
•
Activating the
generator (Dionex RFC-30 only), and CR-TC (Dionex RFC-30 only). For
DX-320, DX-500, or DX-600 systems, the
the TTL-2 output on the pump or combination pump/detector module. See
Section B.2 for installation instructions. For a DX-120 system, the
must be connected to a DX-120 adapter cable. See Section B.3 for installation
instructions.
•
Activating the
Note: This input is ignored if the
Both TTL inputs are level sensitive. They
are inactive at +5 V and active at 0 V.
•
When the TTL is at +5 V, the controlled
function is off.
•
When the TTL is at 0 V, the controlled
function is on.
The
Gradient
pump/detector, or detector module. For relay control, opening the relay turns on
the function and closing the relay turns off the function.
The
TTL Control/AC Control
deselects control of the
•
When the button is in the
input works as described above.
Pump
•
When the button is in the
AC Control
RFC via an AC cable. For additional information about AC control with a
DX-120, contact Thermo Fisher Scientific.
NOTE The
90
Pump
TTL enables the power output to the suppressor, eluent
Pump
TTL enables gradient control of the eluent generator.
Gradient
TTL can also be controlled via a relay from the pump, combination
button on the Dionex RFC rear panel selects and
TTL.
Pump
TTL Control
AC Control
position is used when a DX-120 system is connected to the Dionex
TTL Control/AC Control
TTL input.
Gradient
and
) on the Dionex RFC rear panel
Gradient
TTL must be connected to
Pump
TTL is inactive.
Pump
position, TTL control is selected and the
position, TTL control is bypassed. The
button does not affect the
TTL
Pump
Doc. 031880-04 1/12
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