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Office Hours
Monday through Thursday, 8:00 am to 5:00 pm Pacific Time; closed Fridays

Broadcast Tools, Inc. will be closed in observance of the following holidays:
Closed December 25 through January 1, 2014. Limited technical support is available during the holiday break.

New Year’s Day, Thursday, January 1, 2015
Memorial Day, Monday, May 26, 2014
Labor Day, Monday, September 1, 2014
Thanksgiving Day, Thursday, November 27, 2014
Christmas Day, Thursday, December 25, 2014



Designed and Assembled in
Washington State, USA

Web site design by:
SS 8.1 II


Product Overview The Broadcast Tools SS 8.1 II passively switches or routes a variety of electrical signals to a destination. 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 passive 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 telephone lines.
Features/Benefits

  • 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 connections.
  • 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 activated.
  • 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 programmed 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 ohms 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 selection; Exciter input selection; Remote broadcast input selection; STL source selection; Multiple station program on-hold and/or PA switching; EAS audio switching; ISDN or Phone hybrid feed selection; IFB selection; Satellite audio channel switching and console monitor inputs and outputs selection.
NOTE This product replaces the discontinued 6x1.

131 State Street • Sedro-Woolley, WA 98284
Ph: 360.854.9559 • support@broadcasttools.com • Fax: 866.783.1742
Monday through Thursday 8:00 AM to 5:00 PM Pacific Time

Broadcast Tools® is a registered trademark of Broadcast Tools, Inc.
tiny TOOLS™ is a trademark of Broadcast Tools, Inc.
All Sentinel® labeled products is a registered trademark of Broadcast Tools, Inc.
Copyright ® 1989 - 2014 by Broadcast Tools, Inc. All rights reserved.
Pricing and availability are subject to change without notice.