VAR1 - Electrical relay Bogen - Free user manual and instructions

Product Type	Voice-Activated Relay (DPDT)
Power Supply	External 12V to 24V DC @ 100 mA (not included)
Input Selection	Slide switch for MIC or LINE (70V, 25V, 600 ohm)
Microphone Preamp Gain	62 dB
Microphone Sensitivity	750 mV RMS for 1 V RMS output
Microphone Frequency Response	200 Hz to 10 kHz
Microphone Distortion	< 2%
Microphone Signal-to-Noise Ratio	55 dB
Line Input Impedance	600 ohms (line), 200k ohms (70V), 75k ohms (25V)
Line Input Frequency Response	100 Hz to 10 kHz
Line Output Level	400 mV RMS (70V), 420 mV RMS (25V)
Audio Output	Isolated 600-ohm transformer
VOX Sensitivity	20 mV to 150 mV RMS @ 600 ohms line input
Time Delay Range	0.25 to 25 seconds (adjustable)
Relay Contact Rating	2 A / 30 V DC, 0.5 A / 120 V AC
Applications	Muting sound systems, activating security equipment, zone paging
Service	No user-serviceable parts; contact authorized Bogen service center
Warranty	2 years from date of purchase to original purchaser

Frequently Asked Questions - VAR1 Bogen

What is the Bogen VAR1 Voice-Activated Relay used for?

The VAR1 is used to activate a DPDT relay when an audio signal is detected, for applications like muting a sound system during a page, activating security equipment, or triggering a zone paging module.

How do I power the VAR1?

Connect an external 12V to 24V DC power supply (100 mA minimum) to the DC jack or the + and - screw terminals. The Bogen model PRS40C is recommended but not included.

Can I use both a microphone and line input simultaneously?

No, the VAR1 has a slide switch to select either the MIC preamp input or the LINE inputs (70V, 25V, or 600 ohm). Only one input source at a time.

How do I adjust the sensitivity?

Use the SENS control on the unit. Rotate clockwise to increase sensitivity. Avoid over-rotating as it may damage the trimpot.

What is the maximum delay time?

The maximum delay time is 25 seconds. Adjust the DELAY control clockwise to increase the delay.

What are the relay contact ratings?

The relay contacts are rated 2 amps at 30V DC and 0.5 amp at 120V AC.

Can I repair the VAR1 myself?

No, there are no user-serviceable components. Servicing by unauthorized personnel may void the warranty. Contact Bogen Factory Service Department for repairs.

What is the warranty period?

The VAR1 is warranted against defects in material and workmanship for two years from the date of sale to the original purchaser.

What power supply is recommended?

The Bogen model PRS40C power supply is recommended, but any external 12V to 24V DC supply capable of delivering at least 100 mA can be used.

How do I wire the VAR1 for muting an amplifier?

Connect the paging port output to the VAR1 line input (e.g., 70V), set the input switch to LINE, and connect the relay contacts to the amplifier's mute input. Refer to the sample wiring diagrams in the manual.

USER MANUAL VAR1 Bogen

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 telephone page, activation of accessory (security) 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 unit operates from a DC power source (not included).

INSTALLATION

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. The 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 application. Clockwise rotation of the control increases 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.

SPECIFICATIONS

LINE INPUT

Impedance: 600 ohms

Frequency Response: 100 Hz to 10 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 - 150 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)

SERVICE

There are no user serviceable components within the VAR1. The warranty may become void if the unit is serviced by other than an authorized Bogen service agency.

Contact the Bogen Applications Department if you have any questions concerning VAR1 applications.

Limited Warranty; Exclusion of Certain 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 that, 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 Bogen's option, provided the product is shipped insured and prepaid to: Bogen Factory Service Department, 50 Spring Street, 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 any manner whatsoever, or where the serial number or date code has been removed or defaced.

THE FOREGOING LIMITED WARRANTY IS BOGEN'S SOLE AND EXCLUSIVE WARRANTY AND THE PURCHASER'S SOLE AND EXCLUSIVE REMEDY. BOGEN MAKES NO OTHER WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES OF MER-

CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE MAXIMUM EXTENT ALLOWABLE BY LAW. Bogen's liability arising out of the manufacture, sale or supplying of products or their use or disposition, whether based upon warranty, contract, tort or otherwise, shall be limited to the price of the product. IN NO EVENT SHALL BOGEN BE LIABLE FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS, LOSS OF DATA OR LOSS OF USE DAMAGES) ARISING OUT OF THE MANUFACTURE, SALE OR SUPPLYING OF PRODUCTS, EVEN IF BOGEN HAS BEEN ADVISED OF THE POSSIBILITY 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 rights, 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 by the Bogen Factory Service Department. All shipping charges in addition to parts and labor charges will be at the owner's 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 labeled by other companies may be covered by warranties offered by such companies. Please call Bogen Customer Service or refer to product packaging for manufacturer's warranty for non-Bogen branded products.

12/2008

VAR1used with amplifiers to mute music during a telephone page (paging port without contact closure).

graph TD
    A["POWER SUPPLY"] --> B["VAR-1"]
    C["TELEPHONE SYSTEM PAGING PORT"] --> B
    B --> D["MOSS FET"]
    D --> E["AMPLIFIER"]
    E --> F["MUSIC"]
    B --> G["LINE INPUT"]
    B --> H["LINE VDC"]
    B --> I["POWER"]
    B --> J["MINIC INPUT"]
    B --> K["MINIC SOURCE"]
    B --> L["RELAY"]
    L --> M["AUX"]
    L --> N["MUTE"]
    L --> O["AUX"]
    B --> P["DATA INPUT"]
    B --> Q["DATA VDC"]
    B --> R["DATA POWER"]
    B --> S["DATA SENS"]
    B --> T["DATA DELAY"]
    B --> U["DATA VOUT"]
    B --> V["DATA R"]
    B --> W["T"]
    B --> X["R"]
    B --> Y["AUX"]
    B --> Z["MUTE"]

VAR1 used in a security system to activate an amplifier, CCTV, and light relay control.

graph TD
    A["LO-Z MIC"] --> B["POWER SUPPLY"]
    B --> C["VAR-1"]
    C --> D["TO AMP"]
    C --> E["TO CCTV"]
    C --> F["TO RELAY CONTROL FOR LIGHTS"]
    C --> G["TO RELAY CONTROL FOR LIGHTS"]
    C --> H["RELAY"]
    C --> I["LOGIC INPUT"]
    C --> J["LOGIC INPUT"]
    C --> K["LOGIC INPUT"]
    C --> L["LOGIC INPUT"]
    C --> M["LOGIC INPUT"]
    C --> N["LOGIC INPUT"]
    C --> O["LOGIC INPUT"]
    C --> P["LOGIC INPUT"]
    C --> Q["LOGIC INPUT"]
    C --> R["LOGIC INPUT"]
    C --> S["LOGIC INPUT"]
    C --> T["LOGIC INPUT"]
    C --> U["LOGIC INPUT"]
    C --> V["LOGIC INPUT"]
    C --> W["LOGIC INPUT"]
    C --> X["LOGIC INPUT"]
    C --> Y["LOGIC INPUT"]
    C --> Z["LOGIC INPUT"]
    C --> AA["LOGIC INPUT"]
    C --> AB["LOGIC INPUT"]
    C --> AC["LOGIC INPUT"]
    C --> AD["LOGIC INPUT"]
    C --> AE["LOGIC INPUT"]
    C --> AF["LOGIC INPUT"]
    C --> AG["LOGIC INPUT"]
    C --> AH["LOGIC INPUT"]
    C --> AI["LOGIC INPUT"]
    C --> AJ["LOGIC INPUT"]
    C --> AK["LOGIC INPUT"]
    C --> AL["LOGIC INPUT"]
    C --> AM["LOGIC INPUT"]
    C --> AN["LOGIC INPUT"]
    C --> AO["LOGIC INPUT"]
    C --> AP["LOGIC INPUT"]
    C --> AQ["LOGIC INPUT"]
    C --> AR["LOGIC INPUT"]
    C --> AS["LOGIC INPUT"]
    C --> AT["LOGIC INPUT"]
    C --> AU["LOGIC INPUT"]
    C --> AV["LOGIC INPUT"]
    C --> AW["LOGIC INPUT"]
    C --> AX["LOGIC INPUT"]
    C --> AY["LOGIC INPUT"]
    C --> AZ["LOGIC INPUT"]
    C --> BA["LOGIC INPUT"]
    C --> BB["LOGIC INPUT"]
    C --> BC["LOGIC INPUT"]
    C --> BD["LOGIC INPUT"]
    C --> BE["LOGIC INPUT"]
    C --> BF["LOGIC INPUT"]
    C --> BG["LOGIC INPUT"]
    C --> BH["LOGIC INPUT"]
    C --> BI["LOGIC INPUT"]
    C --> BJ["LOGIC INPUT"]
    C --> BK["LOGIC INPUT"]
    C --> BL["LOGIC INPUT"]
    C --> BM["LOGIC INPUT"]
    C --> BN["LOGIC INPUT"]
    C --> BO["LOGIC INPUT"]
    C --> BP["LOGIC INPUT"]
    C --> BQ["LOGIC INPUT"]
    C --> BR["LOGIC INPUT"]
    C --> BS["LOGIC INPUT"]
    C --> BT["LOGIC INPUT"]
    C --> BU["LOGIC INPUT"]
    C --> BV["LOGIC INPUT"]
    C --> BW["LOGIC INPUT"]

VAR1 for connecting a Paging Port to a ZPM3.

graph TD
    A["POWER SUPPLY"] --> B["12-24 VDC"]
    B --> C["POWER"]
    C --> D["MIC INPUT"]
    D --> E["70V"]
    E --> F["25V"]
    F --> G["600 COM"]
    G --> H["LINE INPUT"]
    H --> I["MIC VOL"]
    I --> J["SENS"]
    J --> K["RELAY"]
    K --> L["VOX"]
    L --> M["DELAY"]
    M --> N["VAR-1"]
    N --> O["AUDIO OUTPUT"]
    O --> P["T R T1 R1"]
    P --> Q["ZPM3"]

VAR1Block Diagram

graph TD
    A["MIC INPUT"] --> B["MIC PRE-AMP"]
    C["70V"] --> D["LINE"]
    E["25V"] --> D
    F["600 OHM"] --> D
    G["COM"] --> D
    H["MIC VOL"] --> B
    I["VOX DETECT"] --> J["RELAY"]
    K["AUDIO OUTPUT"] --> L["3M"]
    M["SENS"] --> N["RELAY"]
    O["DELAY"] --> P["RELAY"]
    Q["NC"] --> R["RELAY"]
    S["COM"] --> T["RELAY"]
    U["NO"] --> V["RELAY"]
    W["NC"] --> X["RELAY"]
    Y["COM"] --> Z["RELAY"]