Bogen-VAR1-Operation-Manual 电路图 维修手册.pdf

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1、DESCRI PTI ON The VAR1 Voice-Activated Relay is a DPDT relay device that is activated when an audio signal is detected at the microphone pre- amp or at 70V, 25V, or 600-ohm line level inputs. It has a number of useful applications, such as muting a sound system in response to a microphone or telepho

2、ne page, activation of accessory (secu- rity) equipment, or activation of a zone paging module. A slide switch is included to select the pre-amp or the line inputs. The VOX detect circuit also includes volume, sensitivity, and delay controls. The audio output is an isolated 600-ohm transformer. The

3、unit operates from a DC power source (not included). I NSTALLATI ON Set input source switch on the top side of the unit to LINE if using one of the line inputs or to MIC if using a microphone. Connect a power supply to the 12 to 24V DC jack on the top of the unit or to the + and - screw terminals. T

4、he Bogen model PRS40C power supply is recommended. WIRING Refer to the block diagrams and the sample wiring diagrams on the next page to wire the VAR1 for your application. OPERATION Sensitivity can be adjusted according to the needs of the applica- tion. Clockwise rotation of the control increases

5、sensitivity. Do not over rotate the control or you may damage the trimpot. The delay control is also adjustable in the field. The maximum delay time is 25 seconds. Clockwise rotation of the control increases delay time. SPECI FI CATI ONS LINE INPUT Impedance: 600 ohms Frequency Response: 100 Hz to 1

6、0 kHz 70V Input Impedance: 200k ohms Output Level: 400 m VRMS 25V Input Impedance: 75k ohms Output Level: 420 m VRMS MIC PREAMP Gain: 62 dB Sensitivity: 750 m VRMS for 1VRMS out Distortion: 2% Frequency Response: 200 Hz to 10 kHz Output Signal-to-Noise Ratio: 55 dB GENERAL VOX Sensitivity: 20 mV - 1

7、50 m VRMS 600 ohms Line input Time Delay Range (approx.): 0.25 to 25 sec. Relay Contact Rating: 2 amps/30V DC, 0.5 amp/120V AC Power Requirements: External 12V to 24V DC 100 mA (not included) SERVI CE There are no user serviceable components within the VAR1. The warranty may become void if the unit

8、is serviced by other than an authorized Bogen service agency. Contact the Bogen Applications Department if you have any questions concerning VAR1 applications. 2003 Bogen Communications, Inc. Specifications subject to change without notice. 54-5934-01D 0902 50 Spring Street, Ramsey, NJ 07446 U.S.A.

9、201-934-8500; FAX: 201-934-9832 Li mi ted Warranty; Exclusi on of Certai n Damages: Bogen Voice-Activated Relay is warranted to be free from defects in material and workmanship for two (2) years from the date of sale to the original purchaser. Any part of any Bogen product covered by this warranty t

10、hat, with normal installation and use, becomes defective (as confirmed by Bogen upon inspection) during the applicable warranty period, will be repaired or replaced by Bogen, at Bogens option, provided the product is shipped insured and prepaid to: Bogen Factory Service Department, 50 Spring Street,

11、 Ramsey, NJ 07446, USA. Repaired or replacement product will be returned to you freight prepaid. This warranty does not extend to any of our products that have been subjected to abuse, misuse, improper storage, neglect, accident, improper installation or have been modified or repaired or altered in

12、any manner whatsoever, or where the serial number or date code has been removed or defaced. THE FOREGOI NG LI MI TED WARRANTY I S BOGEN S SOLE AND EXCLUSI VE WARRANTY AND THE PURCHASER S SOLE AND EXCLUSI VE REME- DY. BOGEN MAKES NO OTHER WARRANTI ES OF ANY KI ND, EI THER EXPRESS OR I MPLI ED, AND AL

13、L I MPLI ED WARRANTI ES OF MER- CHANTABI LI TY OR FI TNESS FOR A PARTI CULAR PURPOSE ARE HEREBY DI SCLAI MED AND EXCLUDED TO THE MAXI MUM EXTENT ALLOWABLE BY LAW.Bogens liability arising out of the manufacture, sale or supplying of products or their use or disposition, whether based upon warranty, c

14、ontract, tort or otherwise, shall be limited to the price of the product. I N NO EVENT SHALL BOGEN BE LI ABLE FOR SPECI AL, I NCI DENTAL OR CONSEQUENTI AL DAMAGES (I NCLUDI NG, BUT NOT LI MI TED TO, LOSS OF PROFI TS, LOSS OF DATA OR LOSS OF USE DAMAGES) ARI SI NG OUT OF THE MANU- FACTURE, SALE OR SU

15、PPL YI NG OF PRODUCTS, EVEN I F BOGEN HAS BEEN ADVI SED OF THE POSSI BI LI TY OF SUCH DAMAGES OR LOSSES. Some States do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal righ

16、ts, and you may also have other rights which vary from State to State. Products that are out of warranty will also be repaired by the Bogen Factory Service Department - same address as above or call 201-934-8500. The parts and labor involved in these repairs are warranted for 90 days when repaired b

17、y the Bogen Factory Service Department. All shipping charges in addition to parts and labor charges will be at the owners expense. All returns require a Return Authorization number. For most efficient warranty or repair service, please include a description of the failure. Products manufactured and

18、labeled by other companies may be covered by warranties offered by such companies. Please call Bogen Customer Service or refer to product packaging for manufacturers warranty for non-Bogen branded products. 12/2008 VOICE-ACTIVATED RELAY Model VAR1 RadioFans.CN 收音机爱 好者资料库 VAR1 used with amplifiers to mute music during a telephone page (paging port without contact closure). VAR1 used in a security system to activate an amplifier, CCTV, and light relay control. VAR1 for connecting a Paging Port to a ZPM3. VAR1 Block Diagram RadioFans.CN 收音机爱 好者资料库