6
Two jumpers are provided on the main module to allow for certain user defined
operations:
J9
J9
J9
J9 is utilized to determine whether the ARTS-201B unit is powered up in the
automatic or manual mode. After power up, the pushbutton inside the front cover
can always be used to override the power up selection.
When the unit is in the automatic mode, if the signal fails on the A input the unit
switches to the B input. A jumper (J10
J10
J10
J10) is provided on the module to allow the
user to define whether the unit automatically returns to the A input upon return of
A signal or whether it remains on the B input until it is manually returned to the A
input. The return-to-A-signal mode can be delayed by an adjustment (R177
R177
R177
R177) to
allow from 1 to 5 seconds after return of A signal before the unit switches back to
the A input. This is included to allow the A signal to stabilize before returning to
the A signal position. The manual changeover pushbutton switch located in the
front cover, as well as the remote changeover pins in the External Control
connector continue to provide for manual operation of the unit.
