Specifications

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SS 4.2 Installation and Operation Manual
DESCRIPTION
FUNCTION DESCRIPTION
Front Panel:
The SS 4.2 is a 1-rack unit device (19”w x 1.75”h x 4.8”d). The front panel sup-
ports ten selection switches, 16 LED indicators, headphone selection switch, _” jack
and level control.
Rear Panel:
Installation is simplified with pluggable screw terminals. The rear panel hosts audio
and control pluggable screw terminals, input/output trimmer controls, PGM dip-
switch, multi-drop RS-232 modular connector and 16 VAC @ 600 ma power supply
connector.
Switches:
The front panel of the SS 4.2 contains separate input selection pushbuttons are pro-
vided for each output channel. A mute switch is provided to turn off each audio
channel, while the enable switch may be configured as a safety switch. A push-push
switch is furnished for headphone monitoring of the two output channels. The input
channels may be programmed for the following operations:
• Overlap - Overlap one audio source with another while the button for the sec-
ond source is held down. Both channels will be fed to the output until the sec-
ond button is released, at which time the first audio source will be switched off.
• Mix - May connect more than one input at a time to any given output - Push
once to connect input, then hold MUTE and press the selected input again to
disconnect.
• Interlock - Connecting one input to any output disconnects all other inputs from
that output
LED Indicators:
The SS 4.2’s front panel LED indicators provide operational display of the follow-
ing information:
• Led indicators on each input channel switch.
• The mute indicator is lit when all channels are off.
• Two “ACT” led’s indicating audio activity for each output channel. Sensitivity
set at
• –36db.
• Two “SS” led’s indicating when an output channel has drop below –36db.
• “PIP” Parallel Input Port (GPI) active, indicating any change with the 16 input
GPI “Pulse Stretcher” ports.
• “Pwr/Ser” led which indicates valid power and will flash when the serial RS-
232 port is receiving or transmitting data.
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