Bell System BFD2-72 Installation And Operating Manual

Bell System (Telephones) Ltd.

PD-307 Issue 2 June 2017

tabellet

2-72 Multi Way

Video Door Entry System

With

Hands-free Colour Apartment Stations

Installation & Operation Manual

This manual applies to the following: ­BFD2-72 Way Door controller – Version 1 Builds 1
tabellet Colour Apartment Station – Version 1 Build 1 to 2
BS Colour Videophone – Version 2 Builds 1 to 3
XL5-BS Audio Phone – Version 1 Build 1
BSC4 Video Controller – Version 2 Build 7

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tabellet Apartment Station

BFD8 controller

BSC4 controller

XL5-BS audiophone

BS videophone

BS Deskphone

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TABLE OF CONTENTS

TABLE OF CONTENTS ...................................................................................................... 3

INTRODUCTION ................................................................................................................. 4

DESCRIPTION ..................................................................................................................... 4

MAIN FEATURES ................................................................................................................. 4

BASIC SYSTEM OPERATION ............................................................................................ 6

DESIGN CONSIDERATIONS .............................................................................................. 9

EQUIPMENT LIST ................................................................................................................. 9

OPTIONS ................................ ................................ ............................................................ 9

POWER SUPPLY REQUIREMENTS ....................................................................................... 11

CABLE SPECIFICATION ...................................................................................................... 13

CABLE DISTANCES ............................................................................................................ 14

INSTALLATION & COMMISSIONING ................................................................ .............. 15

CHECKLIST ....................................................................................................................... 15

WIRING ............................................................................................................................ 15

COMMISSIONING ............................................................................................................... 19

BFD8/72 DOOR CONTROLLER SWITCH SETTINGS ............................................................... 20

BFD8/72 DOOR CONTROLLER JUMPER SETTINGS .............................................................. 22

BSC4 VIDEO CONTROLLER SETTINGS ................................................................................ 23

DOOR SPEECH VOLUME ADJUSTMENT ................................................................................ 25

TABELLET APARTMENT STATION SWITCH SETTINGS ............................................................. 26

BS VIDEOPHONE SWITCH SETTINGS .................................................................................. 27

TROUBLESHOOTING ...................................................................................................... 28

COMMON FAULTS ............................................................................................................. 28

QUICK FAULT REFERENCE ................................................................................................. 28

SPECIFICATIONS ............................................................................................................. 31

DIAGRAM A – 2-72 WAY BASIC SYSTEM WIRING OVERVIEW ................................... 33

DIAGRAM B – BFD8 PCB DETAIL .................................................................................. 34

DIAGRAM C – 2-72 WAY BASIC SYSTEM WIRING DETAIL .......................................... 35

DIAGRAM D – BSC4 PCB DETAIL .................................................................................. 36

DIAGRAM E – BSC4 WIRING DETAIL ............................................................................. 37

DIAGRAM F – LARGE SYSTEM OVERVIEW .................................................................. 38

DIAGRAM G – EXTENSION APARTMENT STATION WIRING ....................................... 39

DIAGRAM H – APARTMENT STATION LOCAL POWER WIRING ................................. 40

DIAGRAM I – CAMERA SHARING & TIME CLOCK SHARING ...................................... 41

DIAGRAM J – 2-72 WAY ADDITIONAL DDA WIRING .................................................... 42

DIAGRAM K – COMBINED CONNECTIONS BELL

FREE

WITH LOCK .......................... 43

DIAGRAM L – COMBINED CONNECTIONS THIRD PARTY LOCK................................ 45

SAFETY INFORMATION AND DECLARATIONS ............................................................ 47

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Introduction

Description

A tabellet video door entry system consists of a door panel, positioned at the entrance of a
building, video apartment stations, placed inside of the building for the convenience of the
occupants and a power supply and controller which are usually located inside an electrical
cupboard. The door panel comprises of a two-way speech unit, a camera and several
push buttons – one of which must be depressed by a visitor to initiate a call. The
apartment station, which rings in response, allows a two-way hands free conversation (a
touch is required to initiate the conversation and end the conversation) whilst the caller can
be observed through the integral display. The operator can selectively allow visitors
access to the building by touching a pad on the apartment station and so electrically
releasing the door.

The tabellet 2-72-way Video Door Entry System is suitable for any building requiring
multiple push buttons at the entrance, such as blocks of flats or multiple offices. For
buildings requiring a single push button at the entrance, such as houses, individual flats
and offices, please refer to the “tabellet 1-way Video Entry System” manual. For a digital
panel with display, refer to the tabellet Digital System.

The tabellet “2-72-way” system is supplied with a dedicated door controller, for each
entrance, and a video controller for every four apartment stations. The basic system
supports 1 apartment station per call button, and up to 3 extension apartment stations
(more with additional power supplies). Multiple entrances can be supported with the
addition of one panel and one door controller for each entrance.

Main Features

● Enhanced audio for hands free operation

● Cat5 cable throughout; no co-ax required!

● 3.5” Flat screen high resolution TFT colour display.

● High resolution CCD colour day/night camera with infrared lamps.

● 12V d.c. operation

● High quality full-duplex speech amplifier.

● Automatic picture display while ringing.

● Ringer mute function.

● Ringer volume control.

● Fail safe or fail secure lock releases and magnetic locks (maglock).

● Lock release timer.

● Tradesman facility (optional).

● Facility for exit button and/or fire switch.

● Door open indication.

● Second camera option.

● Up to 3 extension Apartment stations per flat.

● DDA panel options.

● Multiple entrances supported.

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tabellet Colour Apartment Station

Mode

Handset

Camera

Sounder

Key

Idle

Off

Off

Off

Off

Idle Mute Active

Off

Off

Red

Off

Idle Door Open

Off

Off

Off

Red

Idle Mute and Door Open

Off

Off

Red

Red

Ringing

Blue Flash

Blue Flash

Off

Off

Muted Ring

Blue Flash

Blue Flash

Red

Off

Video Answer or CCTV

Blue Flash

Yellow

Off

Green Flash

Talking

Blue

Yellow

Off

Green Flash

Adjustment Mode

Blue

Yellow

Red

Green

Doorbell

Off

Off

Red Flash

Green Flash

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Basic System Operation

Call sequence

When the call button is pressed at the entrance panel the apartment station will ring and
its blue pickup / view lamp will flash, highlighting the pickup and view symbols. The
apartment station will continue to ring for up to 30 seconds or until the resident responds
by touching the view symbol (see silent viewing below) or the pickup symbol. After using
the pickup symbol the resident can freely converse with the visitor whose image is now
displayed on the apartment station; at the same time the green lock symbol will flash to
highlight the lock function.

The call may be terminated by touching the pickup symbol again or more usually by
touching the lock symbol first to allow the visitor access through the entrance; the speech
and picture will persist for a further 3 seconds while the door is being released.

Silent viewing

When the apartment station is ringing the resident can touch the view symbol to answer
the call instead of the pickup symbol; this will stop the apartment station ringing and
enable them to view the visitor for up to 60 seconds or until the lock symbol is touched to
release the door. Silent viewing can be ‘normalised’ at any time by touching the pickup
symbol and conversing with the visitor as described above.

Apartment Station Controls

The diagram in the introduction shows the apartment station and its controls. The controls
are adjusted by touching the end of the slider and sliding the finger up and down. The
default setting is ringer volume halfway and contrast slider fully down.

Auto Display

When ‘Auto Display’ mode is selected the picture will come on while the apartment station

is ringing, otherwise the picture will only come on when the call is answered. Auto Display
mode is usually pre-selected at installation and generally only one apartment station per
flat should be set in this mode (see ‘Extension Apartment Stations’ below).

Ringer Mute

The resident can mute the ringing sound in the apartment station when they do not wish to
be disturbed. Ringer mute is activated by touching the mute symbol on the apartment
station, which then illuminates in red as a reminder. Touching the mute symbol a second
time will disengage the mute function. Ringer Mute only stops the audible ring, but the
blue ring lamp will still flash and all other functions work normally. Ringer mute will
continue for the pre-set time even if a call is answered.

During installation it is possible to set a time limit for the mute function in various values
from 2 minutes up to 10 hours or indefinitely. When this time period has elapsed the mute
function will automatically disengage. Default timeout is never (See ‘mute timer’, page 26).

Door Status Indication

The green lock lamp on the apartment station will illuminate to warn the resident that a
door has been left open following a call. This feature requires a door monitor contact to be
fitted.

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Call Privacy

Once a call has been made from an entrance panel only the apartment station(s) which is /
are ringing may answer the call. Once the call is answered another apartment station will
not activate (including extensions of the active apartment station).

User Activation (CCTV Mode)

User activation is a feature of the bellfree 1 way system and is not available on multi-way
systems. User activation is generally not recommended on larger systems as the

conflicting demands of residents and callers can result in confusion and erroneous fault
reports.

Cameras

The door controller has the capability of using one or two cameras, for instance a second

panel camera for DDA or a ‘third party’ ‘CCTV’ camera located to offer a different entrance

viewpoint. Touching the view symbol will alternate the view between camera 1 and
camera 2 (if enabled).

Note. The camera to controller wiring has termination options which allow for connections
to other video equipment. See the Camera sharing diagram on page 41 for details.

Extension Apartment Stations

Additional apartment stations may be added to the basic system. The number of
extensions is limited only by power supply considerations. All apartment stations for that

‘flat’ will ring when called however typically only the master unit will display a picture while
ringing. Once the master or extension apartment station is ‘picked-up’ the picture will

display on that unit alone. An extra power supply may be used to allow extension
apartment stations to display a picture while ringing.

Lock Type

The door controller supports both fail-secure and fail-safe locks including magnetic locks of
up to 1A rating. The lock time may be programmed between 1 and 99 seconds. (See
‘Lock Operating time’ and ‘Lock Type’ on page 21.

Exit Button and Fire Switch

An input is provided for an exit button, which can be installed on the inside of the door and
allow residents to exit freely. Momentary operation of this button will operate the lock
release for the programmed lock time. A Fire switch or other override device may use the
same input to hold the door open indefinitely. Note. Fail secure locks must be
continuously rated.

Trades Facility

Use of a time clock in conjunction with a trades button will allow free access during the
programmed time(s).

DDA Functionality

The bellfree video system has a range of options for entrance panels to help meet the
requirements of the Disability Discrimination Act (DDA), including Illuminated Tactile

buttons, reassurance tones and LED indicators for “Speak Now” and “Door Open”.

Contact your sales representative for further details.
Reassurance tone setting is on page 22.

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Multiple Entrances

The bellfree system allows multiple entrances to be catered for by the addition of a door
controller and entrance panel for each entrance and additional power supplies.

In a multiple entrance system an optional feature allows the resident to view the cameras
at all the entrances with successive touches of the view symbol.

For details of this camera feature and user activation see the setting for ‘Camera
Numbering’ on page 22.

Gate and Block Systems

Sites with two or more blocks sharing one or more site entrances are catered for with our
BSSW Gate controller. The blocks can then work independently but will receive calls from
the shared entrance.

For further details see the “bellissimo and Bellcall Manual Gate and Block (PD-120)”.

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Design Considerations

Equipment List

A tabellet-n tabellet Video Kit (where n is the no of ways) comprises the following: -

Model No

Description

N x tabellet

Colour apartment station

1 x BFPn

Vandal resistant panel with a BF-AMP speech unit, VR buttons and
camera.

1 x BFD8 or BFD72

Door controller (BFD72 required for > 8 ways)

M x BSC4

Video controller (one required for every 4 ways = N/4 rounded up)

K x PS4

4A 12V power supply. (one required for every 8 to 16 ways)

1 x 203

Fail-secure lock release, alternate types available

E.g. A TB6 Six way tabellet Video Kit comprises the following: -

Model No

Description

6 x tabellet

Colour apartment station

1 x BFP6

Panel with a speech unit and camera

1 x BFD8

Door controller

2 x BSC4

Video controller

1 x PS4

4A 12V power supply

1 x 203

Fail-secure lock release

E.g. A TB22 Twenty two way tabellet Video Kit comprises the following: -

Model No

Description

22 x tabellet

Colour apartment station

1 x BFP22/VR

Vandal resistant panel with a speech unit and camera

1 x BFD72

Door controller

6 x BSC4

Video controller

2 x PS4

4A 12V power supply

1 x 203

Fail-secure lock release

Options

The following options are available: -

● Extensions using model tabellet apartment station(s).

● Extensions using Videophone model BS.

● Extensions using Audio only phones model XL5-BS.

● Additional entrances, each comprising a BFD8 or BFD72 controller and BFPn

panel. (See also power supply requirements).

● Alternative lock releases, fail-safe and fail-secure.

● Timed Trades facility; specify TRBS to add another button and a TS2000-BST time-
clock. The extra button will be engraved “TRADES”

● Exit button. Model 5077 surface and model 5078 flush versions are available.

● Battery back-up power supply, Model 840 (12V 4A).

● DDA panels (Contact sales for further information).

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Entrance Panel – Important Note

Careful consideration should be given to the location of the entrance panel to ensure the
best possible lighting conditions for the camera. In general strong back lighting of the
subject (by the sun and sky) should be avoided, as the contrast between foreground and
background may be too great for the camera. The field of view should contain as little of
the sky as possible, particularly if south facing. If a backlit situation is unavoidable,
additional lighting may be necessary to illuminate the caller and avoid a dark outline image
(silhouette). A light coloured or reflective surface around the panel will redirect backlight to
illuminate the caller.

Door Controller

The door controller and power supply should be wall-mounted in a convenient cupboard or
other protected environment with available mains power. Cable length to the entrance
should be less than 50m. The door controller for the second and subsequent entrances
may be situated in the same location, or to meet the 50m requirement may be situated in
another location. Power supplies may be shared between door controllers placed in the
same location, but controllers in separate locations must be separately powered.

Video Controller

The video controller(s) and power supply(ies) should be wall-mounted in a convenient
cupboard or other protected environment with available mains power. Cable length to the
apartment station should be less than 150m, see ‘Cable Distances’ page 14. In many
cases the video controllers will be in the same location as the door controller(s), but they
may be distributed as required to reduce wiring distances. When placed in different
locations, each location must have its own local power supplies.

Gate Controller

The gate switch controller BSSW is wired between the block door controllers and the video
controllers, so would normally be wall mounted next to a door controller.

For further details see the “bellissimo and Bellcall Manual Gate and Block (PD-120)”.

Separately Powered Apartment Stations

The limitation of up to 4 apartment stations ringing but only one displaying, as indicated in
the power supply and cable distance tables on page 14, can be overcome by the use of
supplementary power from a 340C.

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Power Supply Requirements

The system is powered by 12V power supplies only: ­Model PS4 12V, 4A.
Model 840 12V, 4A battery backup supply.
Model 340C 12V, 1.5A optional for extensions.
Note 1. The 28V referred to on the apartment station, video controller and wiring diagrams

is internally generated in the controller. DO NOT use any power supply other than 12V or
damage may occur.

Note 2. The PS4 power supply has been specifically designed to operate with the high­surge requirements of the system. Bell System is unable to guarantee functionality or
provide support for systems which use third party power supplies.

Exact power supply requirements depend upon many factors. The number of power
supplies included within a standard ‘kit’ or quotation assumes that all controllers are
installed in one location and that there are no extensions.

The following table gives examples of the minimum number of controllers and power
supplies for a given number of entrance doors and flats.

System

Control Equipment and Power Supplies

1 door 6 flats

1 x BFD8 door controller
2 x BSC4 video controller
1 x PS4 12V 4A power supply

2 door 6 flats

2 x BFD8 door controller
2 x BSC4 video controller
2 x PS4 12V 4A power supply

1 door 20 flats

1 x BFD72 door controller
5 x BSC4 video controller
2 x PS4 12V 4A power supply

2 door 20 flats

2 x BFD72 door controller
5 x BSC4 video controller
3 x PS4 12V 4A power supply

Distributed installations will typically require more power supplies. Also the use of other
equipment such as coded access or proximity readers must be taken into account.

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The following table is a guide to how much equipment a PS4 power supply can safely and
reliably feed, please contact technical support for other variations.

Equipment 1 x PS4 can power

Comments

4 x BSC4 video controllers with 1 tabellet
apartment station per output.

16 apartment station s directly powered.
Extensions may be added if separately
powered by 340C’s.

2 x BSC4 video controllers with up to 4
tabellet apartment station per output.

Extension apartment stations must be set to
ring only, use the above configuration to
allow the extensions to have a picture while
ringing.

1 to 3 BSC4’s with phones plus extensions

16 apartment station s directly powered.

1 x BFD8/72 door controller and
3 x BFC4 video controllers with 1 tabellet
apartment station per output

12 apartment stations directly powered.
Extensions may be added if separately
powered by 340C’s.

1 x BFD8/72 door controller and
1 x BSC4 video controllers with up to 4
tabellet apartment stations per output

Extension apartment stations must be set to
ring only, use the above configuration to
allow the extensions to have a picture while
ringing.

2 x BFD* door controllers (any type) with up
to 2 cameras and 1A fail safe locks.

Both door controllers must be in the same
location. No spare current available for
other equipment unless both cameras or all
the lock current is not used.

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Cable Specification

All system wiring must be carried out using Cat5 signal cable and where necessary 1mm²
(or greater) power cable as tabulated below. Cat5 cable has a known performance for the
transmission of video signals, whilst telephone or alarm cables are not suitable.

Bell System will be unable to offer any warranty or support for systems installed
using incorrect cables.

Cat5 Cable Specification

Cat5 is our short reference for EIA standard UTP Category 5 Unshielded Twisted Pair data
cable. This is a standard solid core twisted pair cable having 4 pairs (8-cores) and no
shield. The cores are in pairs where Blue and ‘Blue with a White stripe’ are twisted
together as the first pair. The other three pairs are similar with main colours Orange,
Green and Brown.

 Also available and acceptable are:

UTP Category 5e (Cat5e)
UTP Category 6 (CAT6)
UTP Category 6e (CAT6e)

The exact cable can be chosen from the above on cost and availability grounds.

 STP (Shielded Twisted Pair) cables are not recommended.
 UTP “patch cables” are not recommended.

NOTE: Cat5 cable is easily identifiable as the specification is printed on the sheath

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Cable Distances

Video Controller to tabellet Apartment Station

System

Distance

Cable

Comments

Single apartment station
per output or first
apartment station

< 100m

1 x Cat5

< 300m

1 x Cat5
2 x 1mm2

Single apartment station +
3 extensions on each
output, all cable powered

< 50m

1 x Cat5

Only Master apartment
station has ‘Auto display’;
extensions are daisy-chained

< 200m

1 x Cat5
2 x 1mm2

Single apartment station
per output with separately
powered extensions

< 100m

1 x Cat5

150m maximum to the cable
powered apartment station;
daisy-chain up to 300m total.

< 300m

1 x Cat5
2 x 1mm2

All apartment stations
locally powered with a
340C power supply

< 300m

1 x Cat5

Locally powered apartment
stations have ‘Auto display’;
extensions are daisy-chained

<25m to 340C

2 x pair of
Cat5

<100m to 340C

2 x 1mm2

Door Controller to Video Controller(s)

Distance

Cable

Comments

<200m

1 x Cat5

N.B. maximum total length from any camera to any apartment
station to be less than 300m Entrance to Door Controller

Connection

Distance

Cable

Comments

Entrance Panel

<50m

7 x pair of Cat5
+1 wire per button

See page 33 for detail

Lock Release up to 1A
<10m

1 x pair of Cat5

<50m

2 x 1mm2

Option: Exit button

<50m

1 x pair of Cat5

Option: Trades button

<50m

1 x pair of Cat5

Requires a Time-clock

Option: Door Monitor Switch

<50m

1 x pair of Cat5

Option: Second Camera

<50m

2 x pair of Cat5

Power Supply to Controller

System

Distance

Cable

Comments

All Systems, each PS4 to
BFD8 or BFD72 or BSC4

<3m

2 x 1mm2

Total length of any daisy chain
<5m

2 x 1.5mm2

NB. A Cat5 cable has 4-pairs (8 cores)

For larger cable distances please contact manufacturer.

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Installation & Commissioning

Checklist

The following checklist is a summary of what is required. Refer to the relevant pages for
further details.

● Review the section headed ‘Safety Information’ on page 47.

● Ensure that ‘Design Considerations’ on page 9 have been understood.

● Confirm that Cat5 cable has been specified.

● Install the system according to instructions in this section.

● Check/set the door controller jumper and switch settings.

● Check/set the video controller jumper and switch settings.

● Check/set each apartment station dip-switch settings.

Wiring

Refer to the diagrams from page 33 onwards as appropriate for the equipment you have.
All wiring is carried out using a mixture of Cat5 for the signal wiring and 1mm² (or greater)

cores for the power wiring; refer to Page 13 for further details. It is strongly recommended
that a consistent colour code be used throughout such as that indicated on the connection
diagram. Certain signals must be interconnected using a twisted pair from the Cat5 cable.
These are clearly marked on the connection diagram and should be strictly observed.

Entrance Panel

The panel should be mounted at an optimum height of 1.6 m, measured between the
ground and the centre of the camera window. DDA considerations may reduce this height
to 1.4m. With flush mounting panels it is advisable to apply mastic to the top and side
edges of the panel to prevent water ingress behind the panel, but not to the bottom edge.
On construction sites the panel must be protected from corrosive substances such as

‘brick acid’. The panel should be cleaned only with a damp cloth containing dilute

detergent.

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Apartment Station

The tabellet is designed to be surface mounted onto a plaster or plasterboard wall using
the supplied steel bracket. The optimum screen height is 1.6m however DDA
considerations may reduce this height to 1.4m.

Instructions:

Warning. The heads of the countersunk screws must protrude less than 1mm or there will

be difficulty attaching the apartment station to the plate.

1) Using the bracket as a template, cut a square hole into the plasterboard ensuring
that the terminal block and other components on the back of the tabellet will clear.

2) A back-box is not required, however a standard flush-mounted single gang back­box can be fitted if desired. The back box does not have to be secured to the
bracket but if this is desired, it is recommended that the bracket and back box be
bolted together first and then fitted to the wall as a single item.

3) Fix the bracket to the plasterboard using up to 8-off No8 (4mm) screws and suitable
plasterboard plugs. Ensure that the bracket is absolutely level when fitted.

4) Fit the tabellet unit by aligning it onto the 4 hooks of the wall bracket, and then

pushing gently towards the wall and sliding the tabellet down until it “clicks” into

place.

5) The tabellet can be removed from the wall mounting box by pushing upwards until it
slides off the bracket. When up far enough it will come forward and the wiring can
be accessed.

Doorbell

The tabellet has a doorbell function which typically would be operated by a local, non­illuminated door push having a normally open contact.

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Extension Ringer

Primarily included for activating third party DDA devices the auxiliary ring output consists
of a pair of volt free contacts which close while the phone is ringing.

If the phone is muted the contacts do not close even though the phone may flash to
indicate ringing.

The contact rating is 1A non-inductive load.

XL5-BS Audio Phone

The XL5-BS audio phone can be used as a lower cost alternative to an
extension apartment station. The phone is manufactured in high-impact ABS
plastic that imparts high durability and compliments most wall furnishings. It
incorporates both mute and lock illuminated buttons and it has an Electronic
Ringing Tone with an internal rotary pre-set volume control.

Remove the top cover of the XL5-BS phone, which is secured by clips, by
using a screwdriver in the slots at the bottom to release the clips.

The XL5-BS audio phone should be fixed with two No 8 screws (not supplied).

Videophone (Alternative to Apartment Station)

The videophone is designed to be wall mounted onto plasterboard or other masonry at an
optimum height of 1.6m. It should be fixed with three No 8 pan head screws (not
supplied). Use the dimensions shown on the adjacent diagram. If the cable is to be fed
from the wall cavity then make a hole for this at the same time, the surface cable exit is to
the left of the cut-out. The top two screws are hidden fixings, so screw in but do not fully
tighten. Test hang the videophone and adjust the screws as required.

Now remove the top cover of the videophone, which is secured by a clip at the bottom.
Hang the videophone on the two screws already fitted allowing the cable (if present) to
feed through and the third screw to be inserted at the bottom. Tighten the third screw.

If the silicone rubber buttons fall out, clip them back into the PCB. Before replacing the
Front Cover remove the protective film from the display lens and also check that the
DipSwitch settings are correct or change as necessary (see Page 27).

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Electric Door Release

Both fail-secure and fail-safe lock releases (including magnetic locks) use the same

terminals. To set the lock type, refer to the ‘Door Controller Settings’. When installing lock

releases please allow a little movement on the door, as operation will be impaired if fitted
too tight.

NB. Magnetic locks (maglocks) must be fitted with a suppressor at the lock terminals.
Some manufacturers fit an acceptable internal suppressor.

Fail Safe Exit: Notes

Fail safe exits using maglocks require an exit button and this should be normally open so
that the controller can be used to give a timed exit. If the exit button has both normally
open and normally closed contacts, then the normally closed contact can be wired in
series with the release or maglock along with the break glass in case of equipment failure.

A not uncommon problem with maglocks, because they cannot be mechanically
overridden, is being locked out of the building due to lost codes, fobs or equipment failure.
So consider an alternate building entrance, or an externally accessible secure keyswitch,
or a reliable method of disabling the system during overnight secure lockup.

Fail Secure Exit: Notes

Commonly fail secure exit doors incorporate a thumb-turn, door handle or mini push bar
rather than use of an exit button. Fire officers usually require a minimum of door handle or
push bar to open a door on a fire exit route – not a thumb-turn.

Most fail secure locks are not continuously rated and if an electrical hold open system is
used for say busy times, then a continuously rated release must be used.

Powered bolt, shoot-bolt or other more secure door locking systems may require the use
of separate power supplies or a suppressor to be fitted. Shoot-bolt systems for instance
tend to require at least 1.5A peak current and this will require the use of an isolation relay
and a separate power supply for the lock.

Exit Button Input

The exit button is used to unlock the door for the pre-set lock operating time. The input is
designed only for use with a normally open push button. ‘Exit +’ is the input and ‘Exit -’ is
internally connected to 0V.

The ‘Exit +’ input can also be used for connection to other equipment to open the door as

shown in Diagram K – Combined Connections bellfree With Lock.

Door Open Switch

The door open switch is used to provide an indication at the apartment station that the
door has been left open. This switch can have closed contacts when the door is closed or
open contacts when the door is closed, the choice being made in Panel Programming.
The default of ‘contacts open when door closed’ must be selected when this feature is not
required.

Time Clock Sharing

In a large system a single time clock can be shared between distributed equipment areas

by borrowing one of the ‘comm -’ wires in the interconnecting Cat5 to use as the shared
“Time clock common”. See the detailed diagram on page 41.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 19 of 48

Commissioning

The major components of the bellfree Video system are fitted with high quality pluggable
screw terminal blocks. This enables all the connections to the system to be fully

completed, whilst easily isolating individual pieces of equipment during testing and
commissioning.

When powering up for the first time, it is highly recommended that only the most basic
system be connected. i.e. 1 tabellet apartment station, 1 door controller and panel, and 1
video controller; the remaining equipment can be isolated by unplugging terminal blocks.

NB: Ensure the 1 door and video controller remain interconnected and that the ‘end of
line’ controller is terminated temporarily using the jumpers (see page 23).

Proceed to test the system by calling the apartment station from the door panel in the
usual way. Any problems can be resolved by rechecking wiring and connections, assisted

by the various suggestions and tests in the section “Troubleshooting”. Once the basic

system is fully functioning, continue to reconnect and test the remaining equipment item by
item until completed.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 20 of 48

BFD8/72 Door Controller Switch Settings

Talking Time/ Apartment station Active DIP SW1 (1-4)

4 3 2 1 Talk Time

On

On

On

On

15s

On

On

On

Off

20s

On

On

Off

On

30s

On

On

Off

Off

45s

On

Off

On

On

60s

On

Off

On

Off

75s

On

Off

Off

On

90s

On

Off

Off

Off

120s

Off

On

On

On

150s

Off

On

On

Off

180s

Other settings

60s

Off

Off

Off

Off

60s*

*Default setting

Ringing Time/Call Time and Ring Effect DIP SW1 (5-8)

8 7 6 5 Call Time

Ring Cadence or Sound Effect

On

On

On

On

5s

1 in 3 – 1 ring every 3 seconds

On

On

On

Off

8s

1 in 3 – 1 ring every 3 seconds

On

On

Off

On

10s

1 in 3 – 1 ring every 3 seconds

On

On

Off

Off

15s

1 in 3 – 1 ring every 3 seconds

On

Off

On

On

20s

1 in 3 – 1 ring every 3 seconds

On

Off

On

Off

30s

1 in 3 – 1 ring every 3 seconds

On

Off

Off

On

40s

1 in 3 – 1 ring every 3 seconds

On

Off

Off

Off

45s

1 in 3 – 1 ring every 3 seconds

Off

On

On

On

50s

1 in 3 – 1 ring every 3 seconds

Off

On

On

Off

60s

1 in 3 – 1 ring every 3 seconds

Off

On

Off

On

30s

1 in 3 (Reserved For future use)

Off

On

Off

Off

30s

1 in 3 (Reserved For future use)

Off

Off

On

On

30s

2 in 15 – 2 rings, 15S silence, repeat

Off

Off

On

Off

30s

1 in 15 – 1 ring, 15S silence, repeat

Off

Off

Off

On

30s

1 in 5 – 1 ring every 5 seconds

Off

Off

Off

Off

30s*

1 in 3* – 1 ring every 3 seconds

*Default setting

SW1

SW2

SW3

(QWERGHJK)

(ASDFGHJK)

(ASDFGHJK)

OFF ↔ ON

SW1

SW2

SW3

(ASDFTYUI)

(ASDFGHJK)

(ASDFGHJK)

OFF ↔ ON

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 21 of 48

Lock Operate Time Dip SW2 (1-3)

3 2 1

Lock Time

On

On

On

3s*

On

On

Off

4s

On

Off

On

5s

On

Off

Off

6s

Off

On

On

8s

Off

On

Off

10s

Off

Off

On

15s

Off

Off

Off

20s

*Default setting

Individual Functions DIP SW2 (4-8)

SW2-4

Lock Type

Lock behaviour during power failure

*Off

Fail secure lock

Requires alternate mechanical means, key or thumb-turn
to open on power failure

On

Fail safe lock

Lock opens on power failure

SW2-5

Door Status Switch

Monitors doors left open

*Off

Contacts Open when
Door is Closed

The default allows for no switch fitted

On

Contacts Closed when
Door is Closed

Standard normally closed switch

SW2-6

Camera 2

How many cameras at this door

*Off

Camera 1 only

Default – single camera per door

On

Enable Camera 2

Second camera at the door

SW2-7

View Function

Camera action when view symbol touched

*Off

Local View

View symbol only selects the camera(s) at this door

On

Global View
(See DIP SW3 below)

View symbol sequentially selects all cameras
at doors with this switch set

SW2-8

Reserved

*Off

On

*Default setting

SW1

SW2

SW3

(ASDFGHJK)

(123FGHJK)

(ASDFGHJK)

OFF ↔ ON

SW1

SW2

SW3

(ASDFGHJK)

(ASDRTYUI)

(ASDFGHJK)

OFF ↔ ON

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 22 of 48

Camera Numbering DIP SW3 (1-8)

Camera 1 at this door

Last Camera

4 3 2 1 Number

8 7 6 5

Number

On

On

On

On

*1 On

On

On

On

*1

On

On

On

Off 2

On

On

On

Off 2 On

On

Off

On 3 agama

On

On

Off

On 3 On

On

Off

Off 4

On

On

Off

Off 4 On

Off

On

On 5

On

Off

On

On 5 On

Off

On

Off 6

On

Off

On

Off 6 On

Off

Off

On 7

On

Off

Off

On 7 On

Off

Off

Off 8

On

Off

Off

Off 8 Off

On

On

On 9

Off

On

On

On 9 Off

On

On

Off

10 Off

On

On

Off

10

Off

On

Off

On

11 Off

On

Off

On

11

Off

On

Off

Off

12 Off

On

Off

Off

12

Off

Off

On

On

13 Off

Off

On

On

13

Off

Off

On

Off

14 Off

Off

On

Off

14

Off

Off

Off

On

15 Off

Off

Off

On

15

Off

Off

Off

Off

16 Off

Off

Off

Off

16

*Default setting

View Activated by User (CCTV mode)

User activation on 2-72 way system is not available.

‘Global View’ at Multiple Entrances

For information on this feature consult Bell System (Telephones) Ltd. technical department
at the number shown on the last page.

BFD8/72 Door Controller Jumper Settings

Camera Terminator

There is a separate jumper for both video Camera inputs. This has three settings, 75R for
terminating coaxial cable, 100R for terminating twisted pair Cat5 cable and None for use
when passing the cable on to another device or controller.

Video Gain Control

The “Video Gain” jumper on door controllers should always be set to “0” unless directed by

‘Bell System Technical Support’. This jumper is only required on some systems with very

long cable runs, camera to apartment station well in excess of 150m. Inappropriate use of
this jumper with short runs will cause picture problems.

Reassurance tones

DDA reassurance tones for “ringing” and “door open” are available at the door panel. The
volume is adjustable from 0 using the volume control on the BFD8/BFD72 controller PCB
(see diagram on page 34).

The lock tone is always active and the ring tone is activated by placing a jumper between
pins 5 & 6 of the “Prog-6” pin header on the BFD8/BFD72 controller PCB, the jumper is
stored between pins 1 & 2.

SW1

SW2

SW3

(ASDFGHJK)

(ASDFGHJK)

(12345678)

OFF ↔ ON

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 23 of 48

BSC4 Video Controller Settings

Jumper settings

The “Video Gain” jumper on video controllers should always be set to “0” unless directed

by Bell System Technical. This jumper is only required on some systems with very long
camera to apartment station cable runs well in excess of 150m. Inappropriate use of this
jumper with short runs will cause picture problems.

The “Video Terminator” jumper must be set to OFF on all but the furthest Video Controller
from the Door Controller(s), this one must be set to ON.

Switch settings

SW6 is a rotary 16 position switch which sets the apartment station (Phone) addresses as
per the following table. These numbers represent actual flat numbers for the digital
controller; they also correspond to the inputs on the BFD8 or BFD72.

SW6 Setting

Pos

Phone 1

Phone 2

Phone 3

Phone 4

0

None

None

None

None 1 1 2 3

4 2 5 6 7

8 3 9

10

11

12 4 13

14

15

16 5 17

18

19

20 6 21

22

23

24 7 25

26

27

28 8 29

30

31

32 9 33

34

35

36 A 37

38

39

40 B 41

42

43

44 C 45

46

47

48 D 49

50

51

52 E 53

54

55

56 F 57

58

59

60

Address Offset SW7

SW7 is an 8 bit switch that is used to increase the addressing range. For each bit that is
switched ON add the corresponding value to the amount set by SW6. This allows flat
addresses up to 3210 to be set.

Bit

Offset

1

+1 2 +2 3 +50

4

+100

5

+200

6

+400

7

+800

8

+1600

SW6

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

Shown at 0

SW7

(QWERTYUI)

OFF ↔ ON

ATTENTION

Each SW6 MUST be set correctly
for the phones to ring.

This switch is shipped set to 0 to
prevent multiple phones ringing on
initial installation.

Each bit on SW7 adds the
corresponding amount to
the address set by SW6.
Do not set a total value
above 9995

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 24 of 48

Odd/Even Addressing Jumper PROG pins 1-2

This jumper alters the addressing of Phone outputs 2, 3 and 4 such that they all become
either odd or even numbers. So if the address of output Phone 1 is 12 say the other
outputs become 14, 16 and 18. If the address were 31 then the other outputs are 33, 35
and 37.

The use of this jumper precludes the use of extended addressing by PROG pins 2-3, if
both are required contact Bell System Technical. The jumper is stored on pins 4-5.

Extended Addressing Jumper PROG pins 2-3

This jumper adds +3200 to the Phone 1 address set using SW6 and SW7. Phone
addresses up to 6410 (Phone 1 output) can be set. Custom versions will show the custom
offset on the build label.

The use of this jumper precludes the use of Odd/Even addressing by PROG pins 1-2, if
both are required contact Bell System Technical. The jumper is stored on pins 4-5.

Custom Alternate Addressing Option

Special versions of the BSC4 can be ordered to allow addressing above 6413. The value
+nn00 is shown on the build label. This jumper adds +nn00 to the Phone 1 address set
using SW6 and SW7The jumper is stored on pins 4-5.

For instance by a custom version Build 7+5000 would make the jumper add 5000, the
BSC4 would then be able to address from 1 to 3210 and 5001 to 8210 (Phone 1 output).

The use of this jumper precludes the use of Odd/Even addressing by PROG pins 1-2, if
both are required contact Bell System Technical. The jumper is stored on pins 4-5.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 25 of 48

Door Speech Volume Adjustment

Introduction

The speech level heard by a caller at the door is adjustable by use of three pushbuttons on
the BFD8/72 door controller. This is useful if the door is on a noisy street, or alternatively
in a quiet location. Speech gain in the other direction is fixed.

Method

To perform volume adjustment, first borrow the jumper from Prog-6 and place it on the two
pin header ZLK. The Yellow Speech LED should light.

WARNING. A power fail during a Save may require the unit to be returned to Bell System
for reprogramming. Do not perform volume adjustment without the jumper in place.

8 presses of Vol+ doubles the volume level and 8 presses of Vol– halves it. Pressing
Save stores the new value. Increasing the volume too far will make speech less stable
and there will be a tendency for feedback – intermittent screeching and howling. If this
happens press Vol– four times and Save and test again.

The new level is tested by ringing one or more apartment stations and talking to them.
Finally return the jumper to its original location on Prog-6.

5 6 7 831

VideoCamera 1 Camera 2 Video

Exit

Call Buttons

Commn

12V12V

Audio Audio

Door

Data Data

Lock

Commn

42

bell

BFD8/72

free

Enhanced Speech

Door Controller

DDA

Power

Input Output

Status

1

1

Prog-6

ZL Prog

Vol+

Speech

Vol-

Panel

Speaker

Save

Lock

Power

Test

SW1

Off-On Off-On Off-On

SW2 SW3

Cam2

Audio

Video

100

75

High

100

75

High

Cam1 Cam2

4 3 2 1 0

Video

Gain

Label BFD8/72

Version No

Build No

Panel
Tone
Volume

bell

System

© 2010

2 2M M 1 1S S B BA A

– – ––– – – –

+ + + +

+++

Speech Unit

PM

12V

SPKR

–––

LS LL LC

– – – – –

LRB1B2

+ + + + +

ZLK

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 26 of 48

tabellet Apartment Station Switch Settings

Mute Time Setting SW (1-4)

1 2 3 4 Mute Time

On

On

On

On

Disabled¹

Off

On

On

On

2 minutes

On

Off

On

On

5 minutes

Off

Off

On

On

10 minutes

On

On

Off

On

15 minutes

Off

On

Off

On

20 minutes

On

Off

Off

On

30 minutes

Off

Off

Off

On

45 minutes

On

On

On

Off

1 hour

Off

On

On

Off

2 hours

On

Off

On

Off

4 hours

Off

Off

On

Off

5 hours

On

On

Off

Off

6 hours

Off

On

Off

Off

8 hours

On

Off

Off

Off

10 hours

Off

Off

Off

Off

*Indefinite²

*Default setting¹Disabled means touching the mute symbol has no effect.
²Indefinite; the mute is cancelled by touching the symbol again.

Individual Functions DIP-SW (5-8)

SW-5

Master / Extension

Which Apartment Station to set

*Off

Master

Only or first apartment station per BSC4 output.

On

Extension / Slave

Second and subsequent apartment stations per BSC4
output.

SW-6

Auto Display on Ring

Apartment Station display behaviour

*Off

Display during ring

Picture is on while ringing, stays on when answered.

On

No display during ring

Picture is off while ringing, comes on when answered.

SW-7

Spare

Spare

*Off

On

SW-8

Spare

Spare

*Off

On

*Default setting

Video Terminator Jumper Setting

The jumper is situated next to the input connector. It is 3 pin and labelled On and Off.
The jumper should be on when there is only one apartment station on an individual BSC4

output. Otherwise only the last apartment station should have a jumper set to On the rest
being set to Off.

SW

(QWERGHJK)

OFF ↔ ON

SW

(ASDFTYUI)

OFF ↔ ON

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 27 of 48

BS Videophone Switch Settings

Mute Time Settings (1-4)

4 3 2 1 Mute Time

On

On

On

On

Disabled¹

On

On

On

Off

2 minutes

On

On

Off

On

5 minutes

On

On

Off

Off

10 minutes

On

Off

On

On

15 minutes

On

Off

On

Off

20 minutes

On

Off

Off

On

30 minutes

On

Off

Off

Off

45 minutes

Off

On

On

On

1 hour

Off

On

On

Off

2 hours

Off

On

Off

On

4 hours

Off

On

Off

Off

5 hours

Off

Off

On

On

6 hours

Off

Off

On

Off

8 hours

Off

Off

Off

On

10 hours

Off

Off

Off

Off

*Indefinite²

*Default setting¹Disabled means touching the mute symbol has no effect.
²Indefinite; the mute is cancelled by touching the symbol again.

Individual Functions Settings (5-8)

SW-5

Master / Extension

Which Videophone to set

*Off

Master

Only or first apartment station per BSC4 output.

On

Extension / Slave

Second and subsequent videophones per BSC4 output.

SW-6

Auto Display on Ring

Videophone display behaviour

*Off

Display during ring

Picture is on while ringing, stays on when answered.

On

No display during ring

Picture is off while ringing, comes on when answered.

SW-7

Spare

Spare

*Off

On

SW-8

Spare

Spare

*Off

On

*Default setting

Video Terminator Jumper Setting

The jumper is situated above the input connector. It is 3 pin and labelled On and Off.
The jumper should be on when there is only one videophone on an individual BSC4

output. Otherwise only the last videophone should have a jumper set to On the rest being
set to Off.

Settings

(QWERGHJK)

OFF ↔ ON

Settings

(ASDFTYUI)

OFF ↔ ON

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 28 of 48

Troubleshooting

Common Faults

A very high percentage of calls to our technical support number, regarding new
installations, are resolved to faulty wiring. The reasons for these are various: -

Broken cores, especially short links, sometimes broken inside the insulation!
Connectors clamped onto the insulation instead of copper.
Wire in the wrong side of a rising clamp connection, the clamps need to be unscrewed

far enough to stop the wire going “underneath”.
Shorts or opens due to cables having been stapled or nailed through.
A common fault is wiring a connector left to right instead of right to left, or one or more

twisted pairs the wrong way round.

Tip. The heads of screws on connectors are not a reliable means of making a connection
with a meter, try pushing the probe into the wire entry point.

Quick Fault Reference

These tables provide a quick indication of the possible fault.

Power Problems

Apartment station resetting
(The three indicators lights
show the power on sequence).

 Power supply intermittent short or overload.
 More than 1 extension enabled for auto display.
 Lock output short-circuit; see ‘Lock Problems’

28V LED does not light on
controller.

 Temporarily remove connection to 28V+ output. If it

now comes on there is a short on the apartment
station wiring.

 12V input connections are reversed.

PS4 output voltage fluctuating,
meter reading unstable.

 Output overload is causing current limit to operate,

check grouping of controllers to power supplies, see
page 11 for details

 See Lock Problems below

Call Problems

Apartment station does not ring or
flash when called

 No power to apartment station; check that red

lamp illuminates when mute is touched.

 Data wiring has a fault, Data A or Data B

connection broken.

 0V to controller missing on separately powered

apartment station.

 Pushbutton wiring error, try short length at

controller.

No extension apartment station rings
or flashes when called

 Data wiring has a fault, Data A or Data B

connection broken.

Green Lock light on apartment
station flashes once when called

 Apartment station set to extension with no

master present or responding.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 29 of 48

BSC4 Video Controller Tests

When the system is idle (no calls in progress) pressing the ‘Test’ button activates the
‘Audio On, ‘Status’ and one of the ‘Select n’ LED’s for 3S. If the system is not idle (Version

2 only) pressing the ‘Test’ button will cause a system wide reset.
There are 4 green LED’s which indicate power to the individual apartment stations, on

board fuses will operate if a short exists.

The BSC4 also has 4 ‘Phone’ test buttons which can be used to verify the ‘data’
connection to the apartment station. Pressing the ‘Test Phone n’ button should cause the
apartment station and extensions, if any, to ring and the associated ‘Select n’ Led to light.

Touching pickup or touching view will cause the ‘Audio On’ and ‘Select n’ LED’s to light.
There will be no audio as no door panel is active. The display on the apartment station will
light up to grey or blue unless the video camera is directly wired to the BSC4 input.

Touching pickup again will cause all the LED’s to extinguish. Touching the lock symbol
instead will cause the ‘Status’ LED to light and after 3S all the LED’s will go off.

If this sequence works repeatedly then the A and B data connections are probably OK.
and the +28V and 0V must also be OK. The test also shows that the BSC4 software is
running and diagnostics can now focus on the door controller to video controller wiring.

If it fails an apartment station can be connected locally with a short cable to eliminate the
cable being faulty.

Lock Release Problems

Lock release does not operate
or clicks but does not open.

 Connections to Lock Release are open or shorted.
 Voltage drop due to cable too thin.
 Lock current is too high; Power supply is resetting.
 Lock release jammed due to over tight fitting.

Maglock does not hold
strongly.

 Voltage drop due to cable too thin.

TEST:

Press ‘Test’ Button on Door

Controller (when system idle):

 Confirm ‘LOCK’ LED illuminates for 3 seconds.
 Check Output Voltage at LOCK terminals.

Lock release operates all the
time or in reverse.

 Check fail safe/fail secure SW2-4 selection matches

the lock type.

 Normally closed switch has been used for exit button.

Lock operates from the exit
button but not the test button
or apartment station.

 Normally closed switch has been used for exit button.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 30 of 48

Video Problems

Blank picture when: ­Calling apartment station or
touching view

 Broken or missing Video + or Video -

connection.

 Cameras incorrectly configured refer to SW2-6

settings on page 21

 Call is from an audio only panel.

No picture when calling apartment
station

 Check auto display switch is on. See page 26

No picture when touching view

 CCTV not available on multi-way systems.

Touching view locks up system

 Ensure BFD8/72 SW2-8 is OFF

Repeated touching of view does not
select cameras in sequence as
expected.

 Check SW2-6 at all entrances is set for correct

number of cameras at that entrance

 Check settings for SW3 if SW2-7 is enabled
 See section ‘Global View’ on page 22

Unstable picture

 Power supply voltage low.
 Terminator switch not set on last apartment

station.

 Too many terminator switches set on.
 Video gain jumper set to high on a short run.
 Very bright area in background upsetting

camera.

Unstable picture possibly with areas
looking like a photographic negative.

 Video + and Video - reversed, or M and S

reversed.

Entrance cannot be seen at night

 Power not connected to camera IR night

illumination. Connect 1 to + on camera.

Speech Problems

Loud tone at the entrance
speaker. (Acoustic
feedback)

 Broken Audio 1 or Audio 2 connection.
 Intermittent or broken Data A or Data B connection.
 Apartment station has reset; see the power faults table.

No speech from apartment
station to entrance

 Missing or Broken Spkr + or Spkr - connection.

No speech from entrance
to apartment station

 Missing or Broken PM + or PM - connection.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 31 of 48

Specifications

BFD8/72 Door controller

Size

BFD8: 185mm x 230mm x 42mm
BFD72: 360mm x 240mm x 40mm

Supply Voltage

10.8V min, 13.8V typical, 15V max

Current Consumption

80mA idle @13.8V, 250mA active
includes speech not cameras

Model CAMBS-C Colour Camera

Size

60mm x 57mm x 31mm

Supply Voltage

10V d.c. minimum, 15V d.c. maximum

Current consumption

175mA maximum without IR
215mA maximum with IR (Link 1 to +)

Image Device

1/3” CCD

Sensitivity

0.01 lux, auto switching to B/W in low light levels

Minimum Focus

100mm

Viewing Angle

92º (typical)

Video Output

PAL composite video 1Vpk-pk (75 Ohm)

Resolution

More than 330 lines

Back light compensation

Yes

BSC4 Video Controller

Size

185mm x 230mm x 42mm

Supply Voltage

10.8V min, 13.8V typical, 15V max

Current Consumption

350mA idle, 3A max @13.8V

tabellet Colour Apartment Station

Size

144mm x 202mm x 50mm (20mm When flush)

Fixing

Wall Mounted – Surface or Flush

Supply Voltage

11V minimum – local power supply only.
20V to 28V typical

Current Consumption

25mA @28V idle, 375mA @ 11V active

Buzzer Mute Time

Disabled, 1minute through 10 hours, indefinite

BS Colour Videophone

Size

180mm x 225mm x 60mm

Fixing

Wall Mounted

Supply Voltage

11V minimum – local power supply only.
20V to 28V typical

Current Consumption

25mA @28V idle, 375mA @ 11V active

Buzzer Mute Time

Disabled, 1minute through 10 hours, indefinite

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 32 of 48

Model XL5-BS Phone

Size

235mm x 105mm x 25mm

Supply Voltage

10V d.c. minimum, 30V d.c. maximum

Current consumption

20mA idle, 67mA ringing @13.8V

Model BF-AMP Speech Unit

Size

98mm x 60mm x 24mm

Supply Voltage

10.5V d.c. minimum, 15V d.c. maximum

Current consumption

250mA d.c. maximum

PS4 Power Supply

Size

236mm x 105mm x 81mm

Output Voltage (regulated)

13.5V d.c. min, 13.8V d.c. nom, 14.1V d.c. max

Output Current

3A continuous, 4A peak (5 minutes max)

Mains Supply Internal Fuse

Not user replaceable

Supply Voltage

230V 50Hz nominal

Temperature Range

0 ºC to 50 ºC

340C Power Supply

Size

140mm x 60mm x 53mm

Output Voltage (regulated)

13.5V Min, 13.8V Nom, 14.1V Max

Output Current

1A continuous, 1.5A peak (5 minutes max)

Mains Supply Internal Fuse

Not user replaceable

Supply Voltage

230V 50Hz nominal

Temperature Range

0 ºC to 50 ºC

840 Power Supply – Battery Backed

Size

350mm x 330mm x 80mm

Output Voltage (regulated)

13.5V Min, 13.8V Nom, 14.1V Max

Output Current

3A continuous, 4A peak (5 minutes max)

Mains Supply Internal Fuse

T2A 20mm HBC (HRC) Ceramic

Battery Fuse

F4A 20mm Glass

Supply Voltage

230V 50Hz nominal

Temperature Range

0 ºC to 50 ºC

BSSW Gate Switcher / Block Isolator

Size

185mm x 230mm x 42mm

Supply Voltage

10.8V min, 13.8V typical, 15V max

Current Consumption

80mA idle, 210mA max @13.8V

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 33 of 48

Diagram A – 2-72 Way Basic System Wiring Overview

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 34 of 48

Diagram B – BFD8 PCB Detail

5 6 7 831

VideoCamera 1 Camera 2 Video

Exit

Call Buttons

Commn

12V12V

Audio Audio

Door

Data Data

Lock

Commn

42

bell
BFD8/72

issimo

Enhanced Speech

Door Controller

Door Panel

DDA

Entrance

Power

Input Output

Status

1

1

Prog-6

HF Prog

Vol+

Speech

Vol-

Panel

Speaker

Save

Lock

Power

Test

SW1

Off-On Off-On Off-On

SW2 SW3

Cam2

Audio

Video

100

75

High

100

75

High

Cam1 Cam2

4 3 2 1 0

Video

Gain

Label BFD8

Version No

Build No

Panel
Tone
Volume

bell

System

© 2010

2 2M M 1 1S S B BA A

– – ––– – – –

+ + + +

+++

Speech Unit

PM

12V

SPKR

–––

LS LL LC

– – – – –

LRB1B2

+ + + + +

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 35 of 48

Diagram C – 2-72 Way Basic System Wiring Detail

3
4
5
6

Trades

(optional)

12V

LS

Spkr

LL LCB2B1

Speech Unit

Call Buttons

DDA

LR

PM

Camera Inputs

Entrance

Power

Supply

Cat5 Input Cat5 Output

Door Panel

Lock wiring options
Lock 0.5A 1.0A
12m 1 pair 1 pair
25m 1 pair 2 pair
50m 2 pair 4 pair
50m 2x1mm² 2x1mm²

BFD8/72

Door Controller

Door Panel

Brn

Brn

W/Brn

W/Brn

Org

Org

W/Org

W/Org

Grn

Grn

W/Grn

W/Grn

Blu

Blu

Red
Black

W/Blu

W/Blu

Lock

Exit button or

Fire Switch

(optional)

Door Monitor

Switch

(optional)

2 x 1mm²

–

+

CO

NO
NC

TS2000

Time Clock

(Optional)

230V

Mains

PS4

Power Supply

12V

+

–

CAMBS

Camera

(Optional Link

For Infra Red

Lamp)

S

1

–

M

+

From

previous

controller

To Next

Controller

12V Spkr

+

+

+

+

+

+

+

PMMic

–

–

–

–

–

–

–

BF-AMP

Speech Unit

Panel

Mic

2

63 7 84 5

1

Brn

Brn

W/Brn

W/Brn

Grn pair

Grn pair

Blu

Blu

W/Blu

W/Blu

All signal cable MUST be Cat5

See "Cable Specification"

Cat5 4 twisted pairs data cable.

One pair in the Cat5 cable

This symbol is used to indicate

where a twisted pair

connection must be used

Brn

W/Brn

Org

W/Org

Grn

W/Grn

Blu

W/Blu

2 2M M 1 1S S B BA A

– – – –– –– –

VideoCamera 1 Camera 2 Video 28VAudio AudioData DataCommn

+ + + +

Exit 12V12VDoor Lock

– – – – –

+ + + + +

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 36 of 48

Diagram D – BSC4 PCB Detail

28V Generator

Input

Power 1 Power 2 Power 3 Power 4

Passthru

Status

Test

Test

Phone 1

Phone 1 Phone 2 Phone 3 Phone 4

Test

Phone 2

Test

Phone 3

Test

Phone 4

Audio on

Select 1 Select 2 Select 3 Select 4

OFF
ON

Video

Termination

4 3 2 1 0

Video

Gain

Label BSC4

Version No

Build No

1

Prog

Power

Supply

SW7

Off-On

SW6

1
2
3
4
5
6
7
8

+1
+2

+50
+100
+200
+400
+800

+1600

Set Phone Address

Then Add values below to get address

0 = AD Mode

1 = 1, 2, 3, 4

2 = 5, 6, 7, 8

: : : : : :

F = 57,58,59,60

2

2

2

2

2

2

1

1

1

1

1

1

B

B

B

B

B

B

A

A

A

A

A

A

–

–

–

–

–

–

–

–

–

–

–

–

–

–

++

Video

Video

Video

Video

Video

Video

12V12V

Audio

Audio

Audio

Audio

Audio

Audio

Data

Data

Data

Data

Data

Data

28V

28V

28V

28V

Commn

Commn

+

+

+

+

+

+

+

+

+

+

––

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 37 of 48

Diagram E – BSC4 Wiring Detail

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 38 of 48

Diagram F – Large system Overview

Illustration of Power Supply Distribution

PS4 12V

PS4 12V

PS4 12V

Door

Panel

Door

Panel

Door

Panel

Further

Entrances

Further

Controllers

Cat5

Cat5

Cat5

Cat5

Cat5

Cat5

Cat5

2 x 1mm²

2 x 1mm²

Input

Passthru

Input

Passthru

Input

Passthru

Input

Passthru

Output

Input

Output

Input

Output

Input

2 x 1mm²

2 x 1mm²

2 x 1mm²

2 x 1mm²

2 x 1mm²

x 4

Monitors

x 4

Monitors

x 4

Monitors

x 4

Monitors

BFDxxx

Controller

BFDxxx

Controller

BFDxxx

Controller

BSC4...

Controller

BSC4...

Controller

BSC4...

Controller

BSC4...

Controller

Detailed Wiring and

Power Supply

Calculations

are in Manual

Correct

Video

Operation

Requires

This

Daisychain

Wiring

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 39 of 48

Diagram G – Extension Apartment station Wiring

When additional power cores are required replace the Blu and W/Blu
wires with the additional wires

Note. For each cable run :-

 Only one unit must be Master (Recommend the first unit)
 Auto display on one video unit only (For auto display on multiple video units see next

Diagram)

 Extension video units must be "daisy chain" wired to preserve video quality
 The last (or only) video unit on the cable requires the Video Terminator "ON" all other

video units must have the Video Terminator "OFF"

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 40 of 48

Diagram H – Apartment station Local Power Wiring

Where more than one extension video unit is required to provide "auto display" then
additional power supplies will be required

Note. For each cable run :-

 Only one unit must be Master (Recommend the first unit)
 Extension video units must be "daisy chain" wired to preserve video quality
 The last (or only) video unit on the cable requires the Video Terminator "ON" all other

video units must have the Video Terminator "OFF"

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 41 of 48

Diagram I – Camera Sharing & Time Clock Sharing

Camera Termination Options

Cameras may be wired in either twisted pair or coax and shared with other equipment.

Time Clock Sharing

A time clock can be shared between distributed equipment areas by borrowing one of the

‘comm -’ wires in the interconnecting Cat5 to use as the shared “Time clock common”.
The “Time clock common” signal is sharable across all Bell controller types.

M

M M

MS

S S

S

–

– –

–

Camera 1 Camera 1

Camera 1 Camera 1

+

+ +

+

Twisted Pair Through Connection

Door Controller Door Controller

Door ControllerDoor Controller

From other

equipment
or Camera

From other

equipment
or Camera

To other

equipment

To other

equipment

From

Camera

From

Camera

Coax Through Connection

Twisted Pair Termination

Coax Termination

100

75

High

100

75

High

100

75

High

100

75

High

Cam1

Cam1 Cam1

Cam1

22 11 BB AA

––

–

–

++

–

–

Controller Controller

Control

Area 2

Equipment

Control

Equipment

Area 1

Blu

Time Clock

Common

Time Clock

Common

Wire "Time Clock Common"

as if time clock is Local

Blu

W/Blu

W/Blu

Cat5

VideoVideo CommnCommn AudioAudio DataData

–

+

CO

NO

NC

TS2000

Time Clock

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 42 of 48

Diagram J – 2-72 Way Additional DDA Wiring

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 43 of 48

Diagram K – Combined Connections bell

free

With Lock

Connecting a Bell PAX1 Proximity Reader

Connect the lock release as per this manual. Leave the Proximity Reader set to

fail secure, the BFD controller sets the lock type.

Use a lock time card to reduce the lock time to 1 or 2 seconds, otherwise the

PAX1 will extend the bellfree lock time to 7 seconds. Lock time cards are in all
Fob packs except the starter pack.

Note 1. A normally open exit button can still be wired to the BFD controller in addition to

the proximity wiring. Alternatively the exit button can be wired to the proximity
reader

ACT 1000/2000/3000 Proximity Controller or 100e/200e Extender

The lock output on an ACT controller is a volt free relay contact, so as long as it is
not used for another purpose it can be directly connected to the exit input of a

bellfree door controller.
A 2 wire interface is shown, but if a common 12V supply is in use then the Exit-

input may be left unconnected and the corresponding ACT relay connection can be
connected to a local 0V terminal.

bellfree

Door

bellfree

Door

bellfree

Door

Exit

Exit

PAX1

Proximity

Reader

PAX1

Proximity

Reader

+

+

–

–

12V

12V

+

+

–

–

Lock

Lock

Exit

Exit

OV

OV

+12V

+12V

–

–

+

+

Z

Z

O

O

H

H

C

C

Exit button

(Optional)

Exit button

(Optional)

NO

C

NC

Exit

+

–

ACT

OP1 or

Relay 1

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 44 of 48

Diagram K – Continued

Connecting a Bellcode Coded Access Controller

Connect the lock release as per this manual. Leave the Bellcode controller set

to fail secure, the BFD controller sets the lock type.

See "Bellcode Manual inc CK200 CS109 (PD-078)" for the other installation and

setting instructions.

Note 1. A normally open exit button can still be wired to the Bellcode unit in addition to

the bellfree wiring.

Note 2. A “12V-” connection will be required if the 2 units are not sharing a power

supply.

Taking an Output From a Third Party System

For 12V a.c. systems use an 88 relay and for 12 d.c. systems use an 89 relay. For
systems with other lock voltages, a relay with a suitably rated coil will be required.

For systems with a fail safe output the common and normally closed contacts will be
required.

bellfree

Door

bellfree

Door

Exit

Bellcode

200

Controller

+

–

–

Lock

+

–

–

Exit button

(Optional)

SupplySupply

Third Party

Controller

Lock

Coil
Coil

Com
NO
NC

88/89 Relay

+

–

Exit

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 45 of 48

Diagram L – Combined Connections Third Party Lock

Connecting a Bell PAX1 Proximity Reader

The bellfree door controller is set to fail secure. The diagram assumes a common
power supply, if not an extra wire will be required to connect the PAX1 Exit O to the

bellfree 12V-.
N.B. The power wiring to the PAX1 must be able to carry the lock current with less

than 2V voltage drop.

ACT 1000/2000/3000 Proximity Controller or 100e/200e Extender

Notes

1. Connect the lock release or Maglock using the ACT Manuals.

2. Leave the bellfree controller set to Fail Secure regardless of the type of release used.

3. A normally open exit button can still be fitted to the ACT controller in addition to the
bellfree wiring.

4. If the 2 units are not sharing a power supply, then a connection from bellfree controller
Exit- to ACT 0V will be required.

5. Look for the notes on the ACT installation diagram concerning the use of links when
the door contact is not used and when a power supply without power fail is not used.

bellfree

Door

bellfree

Door

PAX1

Proximity

Reader

Exit button

(Optional)

Exit Z
Exit O

Z
O

+

–

Lock

–

Exit button

(Optional)

Supply

IP3
IP2
IP1
0V
OP2
OP3

Lock

+

–

ACT

Push button
Door contact
Aux input

–

Exit

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 46 of 48

Diagram L – Continued

Connecting a Bellcode Coded Access Controller

The bellfree door controller is set to fail secure.
The Exit- to Exit- wire is only needed if the two units do not share a common

power supply.

Opening a Gate or Locks on Third Party Systems

The bellfree door controller is set to fail secure.
Use COM and NO or COM and NC as required for the gate controller or third

party access system.

bellfree

Door

bellfree

Door

Exit

Bellcode

200

Controller

+

–

Lock

+

–

–

Exit

Lock

+

–

Coil
Coil

Com

NO
NC

89 Relay

Volt Free
Contacts

For Gate

ETC.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 47 of 48

Safety Information and Declarations

Connections to the 240VAC mains supply must be carried out by a qualified electrician or
similar competent person, and made in accordance with current legislative requirements.
A two-pole switch (as provided by a Consumer Unit or Switch-Fuse) must be included to
isolate both Live and Neutral during Installation or Maintenance. The circuit must be
protected by a fuse or other current-limiting device, rated according to the capacity of the
cable used, up to a maximum of 10A. Use only mains cable to BS6004 or equivalent,
within the following specified limits:

Min

Max

Conductor Diameter

1.0mm (0.8mm2)

2.25mm (4mm2)

Cable Diameter

4.0mm

8.0mm

Model 840 Power Supply (with battery standby)

The Model 840 power supply must be placed in a protected indoor environment such as
an electrical cupboard. It must be secured to the wall with adequate fixings so that there is
no possibility of it falling. The lead-acid battery for the standby power supply is shipped in
separate packaging. It should only be connected once the system has been fully tested.
Connection is made by 2 leads with spade terminals; observe the correct polarity – red to
positive, black to negative. Care must be taken to ensure that the terminals of the battery
are not shorted together by metal objects, as this may constitute a Fire Hazard. The
Control Cabinet is IP55 rated (to exclude dust) and is vented to avoid the build-up of
gases. Do not block any vents that may be apparent.

A good mains safety earth must be connected to the cabinet housing the power supply
Where the power supply is fitted with a replaceable internal mains fuse and or battery fuse,

always replace with the same type as indicated on the power supply. The fuse must be
approved to BS EN 60127 or equivalent.

Power Supply Model

Mains Fuse (Time Delay)

Battery Fuse (Quick Blow)

840

T2A 20mm HBC (HRC) Ceramic

F4A 20mm Glass

Model PS4 and 340C Power Supplies

These power supplies must be wall-mounted onto plasterboard, or a similar non­conductive material, in a protected indoor environment such as an electrical cupboard.

When fitting the power supply cable (both mains and low voltage) ensure the cable entry
cut-outs in the enclosure lid are no larger than necessary for the cable diameter used and
under no circumstances must they be taken beyond the outer cut-out zones.

tabellet Apartment Station 2-72 Way System

PD-307 Issue 2 Installation and Operating Manual Page 48 of 48

Bell System (Telephones) Ltd.

Presley Way,
Crown Hill,
Milton Keynes
MK8 0ET.

Tel: [phone] (Sales and Technical Support)
FAX: [phone]

E-mail: [e-mail]
[e-mail]
Website: www.bellsystem.co.uk

Standards

This product complies with European directive 2004/108/EC on
Electromagnetic Compatibility and Low Voltage Directive 2006/95/EC.
Emissions: Generic BSEN 61000-6-3
Immunity: Generic BSEN 61000-6-1
Low Voltage: Generic BSEN 60950

BS EN ISO 9001:2008 Certificate number GB2000389

