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OWI User Manual: Model AMP1SGRN Speaker Amplifier with Priority Audio Override 

OWI Model AMP1SGRN Manual Page 24 of 28 

 

Refer to page 12 for “A” number locations. 

 
1.) At location A8 set the dip switches for the expected input audio signal: 100 volts audio, 70 

volts audio, 25 volts audio, or LINE LEVEL audio. This is the Priority. 

 
2.) Input using a computer brings up the menu and select 2. Set the time, in seconds, from 5 to 

60. 

 
3.) At location JMP3 (located under the component board, directly under the equalization 

pots),

 

JMP3 jumper affects the Line Level Output. The Pre-Fader position is not affected by 

the Master Fader which is the Main Speaker Volume Control. The Post-Fader position is 
affected by the Main Speaker Volume Control. 

 
4.) The slider switch A11 chooses whether both inputs A12 and A9 are available or whether 

A12 shorts out A9. 

 
5.) The slider switch, A10 chooses the expected non-interrupt signal level: microphone level or 

line level. 

 
6.) The condition indicator red/green LED and the Main Speaker Volume Control are on a 

separate small printed circuit board. The function of the small printed circuit board is allow 
access to both the Main Speaker Volume Control from inside the grill, and to make the 
red/green LED visible, from below (ceiling mounted). 

 
The meanings of the LED indications are below. 
 
7.) Condition Indicator LED, Table of States 

 

 Normal 

Operation 

......................................... Steady green 

 

Self Test Result OK ..................................... Two blinks of green 

 

Self Test Result Fail ..................................... Two  blinks of red 

 Sleep 

Mode .................................................. Quick green flash 

 Priority 

Override ........................................... Steady Red 

Priority Override Timeout Countdown .......... Red flash every second 

 

 

8) Version Indicator LED, Power Up Only 

 
 

Firmware Version Number, First Digit .......... Green  flash 

 

Firmware Version Number, Decimal Point ... 1 Second pause  

 

Firmware Version Number, Second Digit ..... Red flash 

 

 

 

9) Power On Indicator LED, DS2 ...................... Power On Indicator (On PCB, Red) 

 
 

 

Operation Continues 

 

Summary of Contents for AMP1SGRN

Page 1: ...1SGRN GREEN AMPLIFIER WITH PRIORITY OVERRIDE E252969 Established 1978 OWI Incorporated 17141 Kingsview Ave Carson CA 90746 1207 USA Tel 310 515 1900 Fax 310 515 1606 info owi inc com www owi inc com T...

Page 2: ...specification improperly serviced or accidentally damaged 4 OWI Inc shall have no liability whatsoever for consequential damages The sole responsibility at the discretion of OWI Inc under this warran...

Page 3: ...ble of Contents 3 Important Safety Instructions 4 6 Introduction 7 8 Specifications 9 11 Illustration Connection and Control 12 Chained Self Amplified Speakers Wiring 13 One Two Four Speaker Combinati...

Page 4: ...duct s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user of the presenc...

Page 5: ...rovided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched parti...

Page 6: ...me The U S Government s Occupational Safety and Health Administration OSHA has specified the permissible noise level exposures shown in the following chart According to OSHA any exposure in excess of...

Page 7: ...input can be 40dBu The minijack can accept mono or stereo inputs The stereo channels are summed together This audio is adjusted with potentiometer adjacent to Auxiliary Input This input is muted durin...

Page 8: ...duced radiated electromagnetic interference EMI due to a special feature of the power amplifier operating in a patented spread spectrum The power amplifier protects itself from over temperature over c...

Page 9: ...unds Power Supply Size 4 7 H x 2 W x 1 2 D Backcan UL Listed Enclosure Suitable for use in air handling spaces Tile Bridge UL Listed Support Truss Suitable for use in air handling spaces Electrical Po...

Page 10: ...0 dB Max Power Output 15V in 2 times 16 watts or a total of 32 watts DC Power Standby 1 5 watts AC Power Sleep Mode Energy Star less than 1 watt DC Power Short Circuit protected Yes Over current prote...

Page 11: ...Impedance 8 ohms Sensitivity 87dB SPL 1 w m Dispersion 140 Max Power 50 watts Nominal Power 25 watts Frequency Response 65 Hz 20 kHz Woofer Size 6 5 Tweeter size 0 5 Dimensions 8 75 Cut Out Size 7 11...

Page 12: ...OWI User Manual Model AMP1SGRN Speaker Amplifier with Priority Audio Override OWI Model AMP1SGRN Manual Page 12 of 28 SPEAKER WIRING DIAGRAM AND A DESIGNATOR LOCATIONS...

Page 13: ...OWI User Manual Model AMP1SGRN Speaker Amplifier with Priority Audio Override OWI Model AMP1SGRN Manual Page 13 of 28...

Page 14: ...OWI User Manual Model AMP1SGRN Speaker Amplifier with Priority Audio Override OWI Model AMP1SGRN Manual Page 14 of 28...

Page 15: ...NBALANCED MONO LINE IN A9 LOW 3 TERMINAL BLOCK 1 UNBALANCED MONO LINE IN LOW STEREO LINE IN SHIELD _ The amplifier converts the stereo signal to mono HI _ 3 TIP RING SLEEVE 1 A9 Plug into Symbol A12 a...

Page 16: ...ED MICROPHONE IN LOW UNBALANCED MONO LINE IN TWISTED PAIR _ A8 PRIORITY A8 HI SHIELD A8 TERMINAL BLOCK TERMINAL BLOCK LOW TERMINAL BLOCK 3 3 SHIELD SHIELD 2 2 LOW LOW BALANCED MONO LINE IN WIRING DIAG...

Page 17: ...d EF Terminal blocks labeled CD and GH are jumper connectors used for four speaker operation See pages 12 and 14 for connection details Note The RS232 connection is made via the RJ45 Connection below...

Page 18: ...nsmit 3 RS232 Gnd White Grn 5 Ground 4 Power 15VDC Blue 5 Power Ground White Blu 6 Shield Ground Green 7 Line In TB1 3 White Brn Non Priority 8 Line In TB1 2 Brown Non Priority Cable Wiring Schemes Pl...

Page 19: ...frequency signal through the power amplifier and reads the resulting current The difference is compared to a known reference The self test verifies that a speaker and its cable is okay only self test...

Page 20: ...aker Placement Before installing your OWI speakers consider the placement carefully taking into effect the location of electrical plumbing and other fixtures Placement in Ceiling OWI speakers should b...

Page 21: ...speaker wires from your amplifier to your opening Avoid routing the speaker wire near electrical wires If you have to run them parallel make certain to space the speaker wires at least 2 feet from the...

Page 22: ...OWI User Manual Model AMP1SGRN Speaker Amplifier with Priority Audio Override OWI Model AMP1SGRN Manual Page 22 of 28...

Page 23: ...OWI User Manual Model AMP1SGRN Speaker Amplifier with Priority Audio Override OWI Model AMP1SGRN Manual Page 23 of 28 OPERATION...

Page 24: ...horts out A9 5 The slider switch A10 chooses the expected non interrupt signal level microphone level or line level 6 The condition indicator red green LED and the Main Speaker Volume Control are on a...

Page 25: ...st signal is approximately 20 to 25 Hertz and at a very low level A push button located on the Self Test option board allows a manual initiation of self test with the same indications The baud rate of...

Page 26: ...OWI User Manual Model AMP1SGRN Speaker Amplifier with Priority Audio Override OWI Model AMP1SGRN Manual Page 26 of 28...

Page 27: ...en voice coil If the LED is briefly flashing every few seconds the unit is in sleep mode because no audio is being sensed at either Normal input Auxiliary input or the Priority input Initiate self tes...

Page 28: ...AMP1SGRN Speaker Amplifier with Priority Audio Override OWI Model AMP1SGRN Manual Page 28 of 28 Model AMP1SGRN Established 1978 OWI Incorporated 17141Kingsview Ave Carson CA 90746 1207 USA Tel 310 515...

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