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5
SS 8x1 II Installation and Operation Manual
DESCRIPTION
FRONT PANEL DESCRIPTION
Source Switches:
Each switch represents an input to be routed to the switcher’s output. High quality
tactile switches will give the user years of dependable service. Each switch has an
associated LED indicator, which will illuminate when that particular source is rout-
ed to the output. When a source is selected, the previous source will be deselected,
(interlocked). The front panel is also equipped with a MUTE switch. This switch
turns off the audio output. The
ENABLE
switch, when enabled,
must
be pressed
and held in order for any of the other switches to function. This function may be
bypassed.
LEDs:
LED indicators will illuminate when the desired channel is selected. The Pwr/Ser
LED displays valid power and serial data activity. The mute LED denotes when
audio is off. The activity LED is lit when audio is present at the output. Threshold
is set at –40db.
REAR PANEL DESCRIPTION
The rear panel contains the inputs, outputs and remote control interfacing connec-
tors. Audio inputs, outputs and remote control connections are routed through
removable screw terminals (Euro). A RJ-11 modular jack is provided for the multi-
drop serial port.
Power:
Connect the 2.1mm coaxial type power connector into the unit and the power sup-
ply into a 120 Vac 50-60 Hz power source. The front panel Pwr/Ser LED indicates
when power is applied to the unit.
Audio Signal Connector:
The SS 8.1 II is supplied with Pluggable Screw terminals (Euro) and Mating con-
nectors. Channel and polarity designators can be found on the chassis, as viewed
from the rear.
“Remote” Control Connector:
Pluggable Screw terminals (Euro) and mating connectors are provided for connec-
tion to equipment, which will remotely control the SS 8.1 II. Pulsing the “MUTE”
input to ground (low) would turn off the output of the SS 8.1 II until a front panel
source switch is pressed, a remote control input is activated or the unit is powered
up. Pulsing the “STEP” input to ground will step the unit one source for each low
to high transition on this input. Automatic sequence may be accomplished by hold-
ing the step input low for two seconds. The unit will now step to each source at a
user programmable rate from 1 to 999.9 seconds. The number of inputs sequenced
may be programmed for channels 1 to 8. The step input is helpful in freeing up valu-
able remote control channels. This feature may also be used to sequence through
multiple station air monitor signals for program on-hold feed.
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