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4
SS 8x1 II Installation and Operation Manual
DESCRIPTION
PRODUCT DESCRIPTION
The SS 8.1 II passively switches or routes a variety of electrical signals to a desti-
nation. The SS 8.1 II selects any one of 8 stereo inputs to a single stereo output. The
SS 8.1 II provides PASSIVE switching through gold contact relays. The passive
switching means that the unit can route a signal in either direction. Due to the pas-
sive nature of the switching, any input level and impedance can be used. Inputs may
be balanced or unbalanced, while output levels, impedance, distortion, noise and
balancing will match that of the selected input. In addition to their normal use with
audio signals, the unit can also be used to switch AES/EBU digital signals and tele-
phone lines.
FEATURES
• Operational control by front panel switches with LED indicators, contact closures,
5-volt TTL/CMOS logic levels and/or the multi-drop RS-232 serial port.
• Removable screw terminals (Euro) are provided for audio and remote control con-
nections.
• Audio switching via sealed relays utilizing 2-form-C bifurcated - crossbar silver
alloy with gold overlay contacts.
• Logic functions via microprocessor and non-volatile memory.
• The power-up feature allows the user to select which one source is active at power
up, including the last source selected.
• The “ACT” circuit performs as an audio activity monitor with front panel LED and
open collector status output.
• The “ENABLE” switch provides a safety lock to the front panel source selection
switches.
• The audio “MUTE” switch allows the user to turn off the audio output when acti-
vated.
• The “STEP” function allows the user to single step through each channel or to
automatically sequence with user programmed channel steps and speed.
• Eight remote inputs, user configured for remote control or “PIP” (GPI) functions.
• Eight open collector outputs provide remote channel status or may be user pro-
grammed for GPO’s.
• Configuration via dipswitches, serial port menu or burst mode.
• Source number one is configured to route audio to the output in the case of loss of
power to the unit.
• Non-selected sources are terminated with 10K
Ω
, load resistors.
• The SS 8.1 II may be set on a desktop, mounted on a wall or as part of the new
RA-1, “Rack-Able” mounting shelf.
• Optional RA-1 rack shelf for mounting up to two units in 1-RU.
APPLICATIONS
Automation source switching; Studio selection and routing; Audio processing selec-
tion; Exciter input selection; Remote broadcast input selection; STL source selec-
tion; Multiple station program on-hold and/or PA switching; EAS audio switching;
ISDN or Phone hybrid feed selection; IFB selection; Satellite audio channel switch-
ing and console monitor inputs and outputs selection.
