I N S TA L L AT I O N G U I D E SIGNAL ACTIVATED A/B SWITCH AUTOMATED SWITCHING SYSTEM SAS-1 DS00055BCN-0 SAS1.
CONGRATULATIONS! Thank you for choosing the SAS-1 Signal Activated A/B Switch from Niles. With proper installation and operation, you should enjoy years of trouble-free use. Niles manufactures the industry’s most complete line of custom installation components and accessories for audio/video systems. To see the complete Niles product assortment, visit us on the Internet at: www.nilesaudio.com.
INTRODUCTION The SAS-1 is an automatic A-B switching system designed to replace manually operated A-B switches. It automatically switches from A to B when a signal is present at its B input. The unit’s three switching sections can switch three different kinds of signals: Line-level audio, composite video and speaker level audio. The SAS-1 switches each of these sections at the same time, allowing simultaneous control of these signals if needed.
OPERATION There are two ways to trigger the SAS-1 switch: a signal sensing mode (1) and a voltage control mode (2). 1. In the signal sensing mode, the SAS-1 automatically switches from A to B when a signal is present at input B. A sensitivity control is provided for setting the amount of input level (trigger threshold) needed to activate the switch. The B input will have priority as long as a signal remains at its input.
The 12Volts DC is present at the other two terminals whenever the switching section of the SAS-1 is activated. Depending on the setting of the Delay Control, the voltage turns off anywhere between ¼ of a second to 30 seconds after the signal that triggered the SAS-1 is removed. This feature is provided as an interface when using the SAS-1 to control other Niles switching devices such as the AVS-2, SPK-1 and AC-3. refer to the section titled “System Expansion” for more details.
NOTE: IF YOU ARE USING THE SAS-1 TO SIMULTANEOUSLY SWITCH BOTH LINE-LEVEL AUDIO AND VIDEO SIGNALS, AND WANT THE UNIT TO TRIGGER FROM EITHER SOURCE, MOVE BOTH THE “A” SWITCH AND THE “V” SWITCH UP. IF YOU WANT THE SAS-1 TO TRIGGER FROM EITHER SPEAKERLEVEL OR VIDEO SIGNALS, SLIDE BOTH THE “S” SWITCH AND THE “V” SWITCH UP.
USING AN SAS-1 TO AUTOMATICALLY SWITCH A PAIR OF SPEAKERS BETWEEN A RECEIVER AND A TELEVISION. FIGURE 2 SAS-1 A A COMMON COMMON B B V A S CONTROL IN TRIGGER DELAY LEVEL AC TRANSFORMER SUPPLIED WITH SAS-1 POWER CONTROL OUTS L R L R L R TV SPEAKER “A” RECEIVER SPEAKERS USING AN SAS-1 TO AUTOMATICALLY MUTE THE STEREO WHEN THE DOORBELL RINGS.
USING AN SAS-1 AND AN AVS-2 TO AUTOMATICALLY SWITCH BETWEEN TWO TAPE DECKS CONNECTED TO A RECEIVER WITH ONLY ONE TAPE MONITOR. FIGURE 4 SAS-1 AVS-2 A A LEFT RIGHT VIDEO COMMON COMMON A B A B COMMON COMMON V A S CONTROL IN POWER TRIGGER DELAY LEVEL B B CONTROL OUTS L R L R L R AVS-2 TAPE DECK 1 CONTROL CONTROL IN OUT TAPE DECK 1 SURROUND RECEIVER AC TRANSFORMER SUPPLIED WITH SAS-1 USING AN SAS-1 AND AN AC-3 TO TURN ON A SURROUND SOUND SYSTEM AUTOMATICALLY.
ADJUSTING THE SAS-1 The Sensitivity Control adjusts the amount of input level needed to trigger the switch. The threshold may be set anywhere between 15mv and 300mv for line-level audio signals and .1 watt to 4 watts for speaker-level signals. Adjusting the control clockwise will increase the sensitivity, lowering the trigger threshold. Adjusting the control counter-clockwise will decrease the sensitivity, increasing the trigger threshold.
USING THE CONTROL OUT The CONTROL OUT connector has 4 screw terminals and provides two different outputs. The two terminals on the left provide a set of normally open, dry relay contacts, and the two terminals on the right provide a 12Volt DC output. The set of dry contacts close whenever the SAS-1 is triggered. They will remain closed as long as the signal that triggered the SAS-1 is present.
SPECIFICATIONS Speaker Level Power Handling: 600 Watts channel continuous (RMS) Control Voltage Output: 12Volts DC at 400 milliamperes (.4 Amp) Dry Relay Contact Rating: Maximum of 28Volts DC at 1 Amp Minimum Trigger Levels: 15 MV line-level, .1 Watt speaker-level Delay Control Range: Adjustable from ¼ of a second to 30 seconds Frequency Response: FLAT from 20 Hz to > 20 Khz Signal to Noise Ratio: > 90dB, 1Volt reference Crosstalk: -70dB at 20 Khz Total Harmonic Distortion: Less than .
NOTES DS00055BCN-0 SAS1.
NOTES DS00055BCN-0 SAS1.
Niles Audio Corporation (“NILES”) warrants its active products (those requiring AC or battery power) to the original purchaser to be free of manufacturing defects in material and workmanship for a period of two years from date of purchase. This Warranty is subject to the following additional conditions and limitations.
DETACH HERE AND RETURN TO: NILES AUDIO CORPORATION WARRANTY REGISTRATION DEPT. P.O.
BLENDING HIGH FIDELITY AND ARCHITECTURE® Niles Audio Corporation 1 2 3 3 1 S . W. 1 3 0 S t r e e t M i a m i , F l o r i d a 3 3 1 8 6 1-305-238-4373 1 - 8 0 0 - B U Y- H I F I – w w w. n i l e s a u d i o . c o m ©2006 Niles Audio Corporation. All rights reser ved . N i l e s , t h e N i l e s l o g o s a n d 14 Blending High Fidelity and Architecture are registered trad e m a r k s o f N i l e s A u d i o C o r p o r a t i o n . DS00055BCN-0 SAS1.
