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4. Place the unit back into the AUTO mode by pressing F1 twice. The first press of
F1 takes the unit out of the programming mode and into MANUAL. The second
press of F1 places the unit back into AUTO mode.
III. REMOTE CONTROLLED OPERATION
The ATB-300 provides remote inputs to select between manual and auto modes, reset
a fault warning, selection of an input and to enable/disable remote operation. Open
collector status outputs are provided to indicate the currently selected input channel.
These outputs are capable of sinking up to 100ma and are rated at a maximum of 30v
DC.
To enable remote operation the REMOTE ENABLE input must be connected to the
remote common (ground). Refer to page 9 “ATB-300 Remote Connections” diagram for
connection information.
The REMOTE AUTO or REMOTE AUTO inputs are used to select the switching mode
by connecting the desired mode selection pin to remote common momentarily. To
enable remote channel selection, the ATB-300 must be in MANUAL mode.
When the ATB-300 is in MANUAL mode, connecting a remote channel select input to
remote common momentarily will cause the corresponding input to be selected as the
current output. ONLY ONE channel select input can be active. If more than one input is
selected simultaneously the ATB-300 will not switch.
IV. Input Mode Selection Menu Operation
The ATB-300 inputs can be configured for mode of operation on an individual basis.
Stereo, Mono Left, Mono Right, L+R and Stereo Swap can be configured from the front
panel. Use mono left and mono right to fill in a missing channel. For example; choosing
mono left will take a signal only input on the left channel and apply it to both channels at
the output of the unit. Use L+R to create a monaural input from a stereo source.
To select the input mode push F4 once. The display will indicate that you are in the
INPUT MODE SELECTION menu. Select the input channel pair (1-8) using the up and
down arrow keys. The left and right arrow keys are then used to select between the
following modes:
