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Alpha Communications   •    

42 Central Drive

   •    

Farmingdale NY 11735-1202

Toll-Free Technical Line 

1-800-666-4800

   •    

Phone: (631) 777-5500

   •    

Fax: (631) 777-5599

Web: www.alphacommunications.com

   •    

Email: [email protected]

Due to continuous product improvement, all colors, sizes, wiring and specifi cations are subject to change without notice.

©Copyright 2014-2015 Alpha Communications®. All Rights Reserved. 

VK237 2-Wire Video Intercom Kit

Installation Instructions

AWD188

Rev 3

03/2017

INDOOR MONITOR(S)

TECHNICAL SPECIFICATIONS

Display

7” Color TFT LCD Screen

Monitoring Timer

30 seconds

Talk Timer

120 seconds

Ringtone Timer

30 seconds ringing, 90 seconds waiting

Power Consumption

<0.5W (standby), <10W (operating)

Voltage Input to Power Supply

100VAC-240VAC, 50/60Hz

Voltage Output from Power Supply

18VDC, 1500mA

Operational Temperature Range

-13°F to 149°F  (-25°C to 65°C)

LAYOUT

A.

 ‘MONITOR’ Button

B.

 ‘DOOR’ Button 1

C.

 ‘DOOR’ Button 2 [NOT USED]

D.

 ‘CALL ON/OFF’ Button

E.

 Ringtone Volume Adjustment

F.

 Voice Volume Adjustment

G.

 Chroma/Contrast Adjustment

H.

 Brightness Adjustment

I.

 Microphone

FEATURES

1.

 Soft-Touch button operation

2.

 Two-Way voice communication

3.

 Dual door release options

4.

 Volume, brightness & contrast adjustable

5.

 Surface-mounted (low-pro

fi

 le: 1” deep)

6.

 2-Wire installation

CLEANING AND MAINTENANCE

1.  Indoor Monitor is not water-proof and do not 

use it in high humidity places, like bathrooms.

2.  If the screen is dirty, use a soft, dry cloth to 

gently wipe the screen.

WARNING

Please use the dedicated power supply provided 

in this kit by Alpha Communications®. Use of any 

other power supply will void the warranty and 

may cause system damage.

GENERAL NOTES

1.  Do not put Indoor Monitor in wet areas.

2.  Do not place the Indoor Monitor on an unstable 

surface, to prevent malfunction or damage 

caused by falls.

3.  Keep Indoor Monitor out of the reach of small 

children.

4.  Please do not use needles and other sharp ob-

jects to press the Indoor Monitor buttons.

5.  Please don’t hit, shake or throw. Handle with 

care.

6.  Do not install near any electrical devices, dim-

mers, ballasts or high voltage wiring.

Thumbwheel

Controls

Page 1

Summary of Contents for VK237

Page 1: ... Volume Adjustment F Voice Volume Adjustment G Chroma Contrast Adjustment H Brightness Adjustment I Microphone FEATURES 1 Soft Touch button operation 2 Two Way voice communication 3 Dual door release options 4 Volume brightness contrast adjustable 5 Surface mounted low profile 1 deep 6 2 Wire installation CLEANING AND MAINTENANCE 1 Indoor Monitor is not water proof and do not use it in high humidi...

Page 2: ...AWG 24 0 5mm2 230 feet 70m AWG 22 0 65mm2 295 feet 90m USER OPERATION Calling When the CALL button is pressed the Indoor Monitor s show the visitor s image from the appropriate Outdoor Station Press the TALK button to talk to the visitor Monitoring When the MONITOR button is pressed from any of the Indoor Monitors you can visually monitor and hear the sounds around the Outdoor Station s The monito...

Page 3: ...ning in the plastic housing If your installation has only a single monitor the black plastic end of line resistor jumper must remain in place on the monitor If your installation has mul tiple monitors the black plastic end of line resistor jumper must remain in place on the monitor which is farthest from the outdoor remote s and must be removed from the other monitor s Page 3 ...

Page 4: ...lectrical lines dimmers ballasts or other electrical devices may cause audio and or video interference Press down on one side of the plastic nameplate cover and then slide the plastic cover towards that side The opposite side will pop up allowing you to remove it Top View Mounting Instructions Removing Remote Nameplate Secondary Door Chime Option A secondary door chime push button can be connected...

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