Alpha VH30CAK Installation Manual
VH30CAK Series (Color Apartment Type)
Video-Intercom Installation and Use
Instructions, used with the VCU6
System Power Supply Unit(s)
HOUSING INSTALLATION AND
EQUIPMENT LOCATION
INSIDE MONITOR+HANDSET STATION(s)
Locate stations where needed at convenient speaking and
viewing height, about 4.5 feet (137 cm) from the finished
floor. Unit can be secured directly to the finished wall
surface or can be mounted over a single gang electrical
'gem' box or single gang electrical plaster ring.
DOOR ENTRY STATION(s)
Locate door entry station(s) at a convenient speaking
locationatthe building entry location(s).NOTE:For best
picture (video) quality DO NOT POINT CAMERA
INTODIRECTSUNLIGHT!!!
SYSTEM TRANSFORMER(s)
The SS146 (and T1240) system transformers may be
plugged into an accessible source of 117 VAC, preferably
within 50' (15 meters) of the VCU6 system power supply
unit(s), but no closer than 3 feet (1 meter).
VH30CAK Video
Monitor Station (shown)
APPLICATION
TheVH30CAKseriesvideo-intercomsystemallowsany
number of VH30CAK series inside monitor+handset
stations to communicate with one or more door entry
stations with (or without) a built-incolor camera. When
used as an apartment video-intercom system, the
VH30CAKcanviewthecaller, speakwiththecaller,and
activate an electric door release (if required).
PROCEDURE
1. Read installation instructionsfor each unit to determineequipmentlocationandinstallationmethod.
2. Installhousingsand wiring.
3. Installequipment.
4. Check wiring and connect. Observe all local
and national electrical codes.
5. Apply power and check system operation.
ELECTRIC DOOR OPENER (OPTIONAL)
The DO-001 (or equivalent 12-16VAC type) electric door
release is installed in the door jamb in place of the regular
door strike plate. It can be electrically operated by the
VH30CAK videomonitor+handset station(s).
WIRING
INSIDE HANDSET STATIONS
Run 2 conductor #18AWG (common), 4 conductor
#22AWG (common), RG59/U (common) and 1 conduc-
tor #22AWG(selective)cablefromvideomonitor+handset
tovideomonitor+handsettothecentralequipmentlocation
(where the VCU6 unitisfound).Additionalcablesmay be
used to serve other monitors on other risers (lines).Cables
may be straight or twisted pair type and may be solid or
stranded conductors. Depending upon additional system
options and/or functions you may need to run additional
wires. Please consult the factory for more information.
RG59/U coax cable must be good quality, ALLCOPPER,
with minimum 95%copper braiding. As with all systems,
we recommend running some spare wires, for future use.
Route cable away from AC power wiring, transformers,
fluorescent lights, light dimmers or other electrical de-
vices. Protect cable from damage. Shielded cable should
Copyright©2002-2006,AlphaCommunications®,AllRightsReserved. AWD076 Rev. 4 (07/06)
be used if AC interference is a concern, or if cables cannot be
run adequately spaced away from any source of electrical
interference.
DOOR RELEASE
Run 2 cond. #18 fromthedoorreleaselocationtotheVCU6
amplifier/powersupply.Routeawayfromanystationwiring.
Note: if wire run is longerthan50 feet (15m), use #16AWG
cable.
CONNECTIONS
Before connecting, make certain wires are free from shorts
or grounds. Make connections as shown on the enclosed
system diagrams, and as indicated below.
NOTE: Please keep in mind that all wiring terminals
shown may not be in the actual order in which they
appear on the equipment. This is done for clarity of
wiring diagram purposes.
TRANSFORMER
1. Connect the 12VAC and 16VAC transformers to the
VCU6 amplifier power supply, where indicated. Do not
use transformer(s) to power any other device(s).
2. Do not connect transformer primary to 117 VAC until
entire installationiscompleteandall wiring is checked.
DOOR RELEASE
1. Connect 12-16 VAC electric door opener using 2 conductor #18AWG (polarity not important). Route away
fromanystationwiring.Note:ifwirerunislongerthan50
feet (15m), use #16AWG cable.
FINISH INSTALLATION
1. Install all components.Do not overtighten screws.
2. Connect primary of all transformers to 117 VAC.
Observe all local and national electrical codes.
TEST AND CHECKOUT
1. Atallremotemonitor+handsetstations,makecertainthe
handsets are completely hung-up on the handset cradle.
2. Check each monitor+handset unit in the system for
operation in accordance with the operating instructions.
3. Checkforproper door releasefunction(on systems with
door release capability.
4. On systems with multiples entrances, check for proper
operation from each calling entrance station.
NOTE: System warranty is void if this system is installed
or used in any manner other than described in this
manual.
OPERATING INSTRUCTIONS
TO PLACE A CALL TO THE REMOTE
MONITOR+HANDSET UNITS:
At the remote door entrance station, depress button (for a
fewseconds)forapartmentyouwishtocall.Thiswill signal
thebuzzer(oroptionalAlphatone™)signalattheapartment
monitorhandset,andwillcause thevideo screentolightand
display the visitor. The tenant may choose to ignore the
caller,orto lift theintercomhandset to answer.Tenantmay
speak to the visitor by simultaneous 2-way (DUPLEX)
voice.If tenantissatisfied withidentity ofcallerand wishes
to let visitor into the building, tenant shall momentarily
depress the door release (KEY) button on the handset,
whichwillelectricallyactivatethe doorreleasemechanism.
Monitorwilltime-outautomaticallyafterapprox.40seconds
(unless the time-out duration has been changed by the
installer/user).
Insystemswithmultipledoorentrystations,thesystem will
automatically switch the voice, video and door release
functions to the last entry station that placed a call (when
used with the appropriate multiple entrance adaptors).
TROUBLESHOOTING
If the system fails to operate as required, review operating
instructions again. If the equipment fails to operate as
indicatedin theinstructions, checkthe followingpoints:
1. ENTIRE SYSTEM DEAD: Check for 12VAC and
16VAC at the two (2) transformer secondaries; wiring
between transformer and power supply unit(s); connec-
tions atmainpower supply units, 117VAC at transformer
primary,and checkthe (2ampslo-blo Europeansize) fuse
in the VCU6 power supply. If fuse is blown, replace with
our model #50T-2A.
2. NO CALL UP BUZZER AT HANDSET: Check for
approx. 12VAC at terminals 'O' and 'S' on handset,
when entry station pushbutton is depressed. Temporarily switch handset with one from a functioninglocation. Check wiring connections at remote handset.
Check that wiring inside handset base is not restricting
movement of buzzer clapper; temporarily switch handsettoanotherlocation that is functioning, and tryagain.
Check that entry station pushbutton is making contact,
by shorting out the two (2) wires on the back of the
button.
3. NO PICTURE AT MONITOR: If screen is NOT
LIGHTING UP, check for approximately 16VDC at
(+) and (-) terminals on monitor PC board (VH250P).
Check Brightness and Contrast controls on front of
monitor. If screen IS LIGHTING UP but there is no
picture,youprobably arenotgettingavideosignalfrom
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thecamerato themonitor.Starting atcamera,check for
video signal through coaxcable,andthrough(VDU-4)
video distributors (if used). Check for approx. 12VDC
powerat eachVDU-4videodistributor(ifused).Check
coax connector at camera(s) to make sure it is not
shorted oropen.Temporarily switch monitor PC board
(VH250P) with one from a functioning location.
4. NO VOICE ON SYSTEM: Check volume control
potentiometeronVCU6amplifier(inbothdirections;up
anddown). Checkterminals'T','O',and 'M'tohandsets.
Check speaker/microphone connections at each entry
station. Disconnect terminals 'T', 'O' and 'M' on VCU6
system amplifier,andconnectasingle handset to those
terminals.Ifvoiceisworking,amplifierandentryspeaker/
microphone are O.K., so check riser wiring. If not
amplifierorspeaker/microphonecouldbefaulty.Check
by replacement.
5. UNABLE TO RELEASE DOOR STRIKE: Check
wiring to handset terminals '1' and 'O'. Temporarily
removedooropenerwire from terminal'1'andtouch to
terminal 'O'. Check operating voltage of door opener
matches output from system amplifier. Check wiring
(and gauge) to door opener,fromamplifier/powersupply.When usinga magnetictype lockorother'fail-safe'
typedoorlock,youshouldusea reversingrelay,suchas
our model# PK407A for each entrance.
PLEASE NOTE: If these checkpoints fail to indicate the
problem, theremaybean equipment or wiring fault. Please
contact the factory or a qualified service representative.
VH30CAK MONITOR COMPONENT LISTING
Contrast
Brightness
Hue Saturation
Not
Used*
*Thisbutton is usedonother systems anddoesnot applyto
thismulti-residenttypeconfiguration.
6. HUM OR BUZZ: Check system wiring installed too
closetopowerwiringorelectricaldevices ortransformers; check transformer(s) installed too close to control
equipment (should be at least three (3) feet away).
Wiringisbeingrunnexttowiringfor othersystemsand/
or devices.
7. MONITORS TIMING OUT TOO QUICKLY:
Check adjusting control potentiometer on VH250P PC
board and adjust as needed from approx. 0 to 180
seconds.Calibrationisnotexact,sopleasechecktiming
after re-adjusting. If that doesn't correct the problem,
check this out; On the VCU6 amplifier/power supply,
there are three (3) sets of (+) and (-) terminals for the
Monitors, marked M1+, M1-, M2+, M2-, M3+, M3-.
The negative (-) terminals are already jumped together
inside the VCU6. Jump the three (3) positive (+)
terminals together, as shown on diagrams.
8. MONITORS DO NOT TIME OUT AT ALL:
Check for shorts and/or grounds on system. Temporarilyswitchmonitor with onefroma functioning location.Checkthatentry station pushbutton isnotstuckor
shorted.TemporarilyswitchmonitorPCboard(VH250P)
withonefrom a functioning location.
TYPICAL REPLACEMENT PARTS
Model# VCU6: Amplifier/Power Supply unit. One (1)
required for each 30 (or less) monitors.
Model# VDU-4: Four (4) output Video Distributor. One
(1) required for each four (4) (or less) video outputs to
monitorrisers/lines.
Model# TU1007A: Multiple Entrance audio switching
adaptor. Used to switch the voice (and door release) to
the calling entrance. One (1) required for 2 entrances,
two(2) requiredfor 3-4entrances, three(3) requiredfor
5-6 entrances, and four (4) required for 7-8 entrances.
Used on systems with more than one (1) entrance
station.
Model# DPS-2 (TUV2): Multiple Entrance video switch-
ingadaptor.Used(inadditiontotheTU1007A)toswitch
the video tothecallingentrance.One(1)required for 2
entrances, two (2) required for 3-4 entrances, three (3)
required for 5-6 entrances, and four (4) required for 7-
8 entrances. Used on systems with more than one (1)
entrance station, where video switching is required.
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