AT&T Door Phone Controller Installation And Operation Manual

11/16/92

AT&T

AT&T Door Phone Controller

Installation and Operation Manual

© 1992, AT&T
All Rights Reserved

Printed in U.S.A.

CIC# 999-500-315

0II722050-055

Issue 3, November 1992

NOTICE

Every effort was made to ensure that the information in this manual was complete and accurate at the
time of printing. However, information is subject to change.

COMPATIBILITY

The AT&T Door Phone Controller is recommended for use with any AT&T business telephone system.
It is also intended to be used with the AT&T Door Phone Speaker.

WARRANTY INFORMATION

AT&T provides a limited warranty to this product. Refer to “Warranty Information” in Appendix F.

Partner, Spirit, Merlin, System, Dimension, Horizon, Touch-Tone and Comkey are registered trademarks
of AT&T.

VG

ii

AT&T Door Phone Controller Compatibility Chart

Dedicated

Dedicated

Station

Station

Mode

Trunk

Trunk

Access

Access Auto

Loop

Ground

Port
Saver
Loop

Start

Trunk
Saver
Loop
Start

Aux. Alert

Ringdown

Start

Start (Analog) (Analog)

System

(Section 4)

(Section 4)

(Section 6)

(Section 3/6)

(Section 5)

(Section 5)

see Notes 8,7 see Note 4

DIP

Switches

Home Use

(single line

YES

NO

service)

NO

YES

NO NO

NO

PARTNER

NO YES

see Notes11,12

YES

NO

see Notes 11,12

NO

see Note 11

PARTNER

YES

YES

see Notes 11,12

YES

YES

see Notes 11,12

YES

see Note 13

NO

PLUS

see Note 11

Spirit

YES

NO YES

see Notes 4,6

YES

NO

see Notes 4,6

NO

308/616,

see Note 4

1224/2448

Merlin

YES

YES

YES NO

see Notes 4,5

NO

NO

206/410/820

See Notes 4,5 see Notes 4,5

Merlin II

YES

see Notes 4,5

NO

YES

see Notes 4,5,9

YES

YES

see Notes 4,5,9

YES

Merlin

YES

NO YES

see Notes 4,5

YES

NO

see Notes 4,5

NO

Plus

see Notes 4,5

Merlin

YES

NO

YES

see Notes 4,5,9

YES

YES

see Notes 4,5,9

YES

1030/3070

see Notes 4,5

System 25

YES

YES

see Notes 1,4

YES

see Notes 2,7

YES

YES

see Notes 2,7 see Note 1

YES

see Not e 1

see Notes 1,4

System 75

NO

NO NO NO NO

YES

see Note 14

System 85

NO

YES

see Note 4

NO NO

YES

YES

see Note 14

Dimension

NO

YES

see Note 4

NO

NO

YES

YES

see Note 14

Horizon

YES

YES

see Note 4

YES

see Notes 4,6,7

YES

YES

see Notes 4,6,7

YES

see Note 14

see Note 4

Comkey

YES

NO

YES

see Note 4

YES

NO

see Note 4

NO

see Note 14 see Note 4

Application Notes (for Compatibility Chart)

1.

2.

3.

4.

5.

6.

7.

8.

When used in any mode of a System 25, if the user initi­ates a call to the door and he wishes to enter the
Option Selection mode, pressing three pound keys fol­lowed by the digit 3 (i.e., # # # 3, not # # 3) must be
entered. Actually, the first # does not seem to be recog­nized at any time during the call. However, it should be

noted that only # # 3 is needed to enter the Option Se­lection mode when the call is initiated from the door

button press.
When sharing a trunk port on a System 25, that port

must be configured as an “805” PBX/Centrex, not an
“801” Loop trunk. This is the only way to transmit a
hook flash to that port.

On the Merlin 1030/3070 tip and ring station application,
there is a preset delay such that the Merlin system will
disregard DTMF for the first 12 seconds of the connec­tion. In this mode, users have the choice of either

changing that time period or waiting for it to time out for

each call.

In general, the ring-cadence option selection applies
only if there is an auxiliary alert device connected. All
of the EKTS/PBX’s will “absorb” the ringing signal from
the AT&T Door Phone Controller and generate their
own ring cadence to the telephone sets.

When using the AT&T Door Phone Controller in any con­figuration with a Merlin System, the pound key must be

pressed twice (##) for each pound (#) sent to the unit
when dialing from a multi-button set.

Port Saver/Trunk Saver operation will not work for

Tip/Ring sets. A switch-hook flash is not passed to the
trunk port from these sets.

A trunk shared with the AT&T Door Phone Controller

should not be placed in a trunk pool with other trunks.

When the AT&T Door Phone Controller shares a C.O.
trunk, Trunk Saver operation is recommended.

iv

Application Notes (for Compatibility Chart) continued

9.

10.

11.

12.

13.

14.

Tip/Ring telephone sets connected to the Merlin System
through a BTMI cannot use Port Saver/ Trunk Saver op-

eration. The BTMI wiII not transmit the required
hook-flash signal.

System 75 requires a pound (#) to be dialed at the end

of every dial string. This is required to send the dialed

number to the trunk port.

Tip/Ring telephone sets cannot be used in this mode to
access the AT&T Door Phone.

For PARTNER telephone sets not equipped with a Re-

call button, “FEATURE 03” must be dialed to send a

hook-flash signal to the trunk port.

In the Ringdown mode, no number should be pro­grammed in the AT&T Door Phone for it to dial when
the door button is pressed. The PARTNER Plus system
should be programmed to alert the desired stations
when the door phone goes off-hook on its station port.

The information for this system is based on engineering
judgment.

v

Contents

1

Introduction

■ Using This

■ Features

■ Terms You

1-1

Manual

1-2
1-3

Should Know

1-5

2

Installation Procedures

■

■

■

■

■

■

■

■

■

■

■

Important Safety Information
General Information
Introduction
Door Phone Controller Back Panel Connections
Prior to Installation
AT&T Door Phone Controller Location
Installation
Connecting Door Speaker, Door

Switch to the AT&T Door Phone
Connecting Power

Button, and

Controller

Door Ajar

Operation and Controls Information
Connecting the AT&T Door Phone Controller to
Your Telephone Equipment

2-1
2-3

2-5
2-6
2-6
2-8
2-9
2-11

2-13
2-17
2-20

2-22

3

Installation for Home/Residential

3-1

■ Overview

3-2

■ DIP Switch Selections

3-2

■ Installation

3-3

■ Option Selection

3-5

■ Operation – Basic Door Answer Function

3-7

vii

4

Installation for Telephone Systems With Available 4-1

Dedicated Trunk Port

■ Overview

■ DIP Switch Selections

■ Installation

■ Option Selection

■ Operation –

Basic Door Answer Function

4-2

4-2
4-3
4-6
4-8

5 Installation for Telephone Systems With Available 5-1

Station Port

■ Overview

■ DIP Switch Selections

■ Installation

■ Option Selection

■ Operation

5-2
5-2
5-3
5-5
5-8

6 Installation for Telephone Systems Without Available 6-1

Dedicated Trunk or

■ Overview

Station Port

6-2

■ DIP Switch Selections

6-2

■ Installation

6-3

■ Option Selection

6-5

■ Port Saver or Trunk Saver Mode Installation

6-6

■ Operation – Basic Door Answer Function

6-9

7

Troubleshooting and Maintenance

7-1

■ Troubleshooting Procedures

7-2

■ Maintenance

7-4

viii

A

DIP Switch Settings

A-1

B

Option Selection Mode Definitions

B-1

C

Specifications

C-1

D

Using the AT&T Door Phone Controller With an

D-1

Answering Machine

E

AT&T Auxiliary Alert Option

E-1

F FCC Regulations and Warranty

F-1

ix

Figures

1

Introduction

1-1

1-1.

Front View of the AT&T Door Phone Controller

1-4

and Control Panel

2

Installation Procedures

2-1

2-1.
2-2.
2-3.

2-4.

2-5.

2-6.

2-7.
2-8.

2-9.

Door Phone Controller Back Panel Connections
Typical AT&T Door Phone Controller Installation
Mounting AT&T Door Phone Controller to Wall
Connections for AT&T Door Phone Speaker,
Door Button and Door Ajar Devices
Connections for Remote Door Open Switch
(optional)
Connections for Electric Door Strike Plate
(optional)

Connections for Auxiliary Alert Device (optional)
Plug the AT&T Door Phone Controller Power Cord
and Transformer to 120 VAC Outlet
Configuration of Telephone Equipment Flow Chart

2-8
2-10
2-12
2-14

2-15

2-16

2-18
2-19

2-22

3

Installation-Home/Residential

3-1

3-1.

Home/Residential DIP Switch Settings

3-3

3-2. Connecting AT&T Door Phone Controller to

3-4

Standard Telephone Equipment

x

4

Installation-Dedicated Trunk Port

4-1

4-1. DIP Switch Setting for PBX with Dedicated Trunk 4-3

Port

4-2a.

Connecting Door Phone Controller to Standard 4-4
Telephone Equipment

4-2b.

Using Modified Modular Cable for Ground Start

4-5

Installations

5

Installation-Dedicated Station Port

5-1

5-1.

DIP Switch Configuration for Telephone System 5-3
with Dedicated Station Access, Station Mode

5-2. Connecting the AT&T Door Phone Controller to a 5-4

Telephone System with Dedicated Analog Station
Port

6

Installation-No Dedicated Trunk/Station Port

6-1

6-1.

DIP Switch Setting for PBX With Shared Trunk Port 6-3

6-2. Connecting The AT&T Door Phone Controller to 6-4

a Telephone System With Shared Trunk Port

D Using the Door Phone Controller With An Answering

D-1

Machine

D-1.

Installation Method Used For Answering Only

D-2

Telephone Calls

D-2. Installation Method Used For Answering Both Door D-2

and Telephone Calls

E

Appendix-Auxiliary Alert Device Connections

E-1

E-1.

Connections For Auxiliary Alert Device

E-3

xi

Tables

3

Installation-Home/Residential

3-1

3-1.

AT&T Door Phone Controller Option Selection

Information

3-6

4

Installation-Dedicated Trunk Port

4-1

4-1. AT&T Door Phone Controller Option Selection

Information

4-8

5

Installation-Dedicated Station Port 5-1
5-1.

AT&T Door Phone Controller Option Selection

Information

5-7

6

Installation-No Dedicated Trunk/Station Port

6-1

6-1.

AT&T Door Phone Controller Option Selection

Information

6-8

7

Troubleshooting and Maintenance

7-1

7-1.

Troubleshooting Procedures 7-2

xii

Introduction

1

Introduction

1-1

Using This Manual

This manual will help you install, program and operate the
AT&T Door Phone Controller. It contains important information
on what features are available and how to use them. We urge
you to read this manual prior to installing the AT&T Door

Phone Controller; this will ensure that you are using the

product to its fullest capability.
Section 1 (this section) provides basic information on what the

AT&T Door Phone Controller is and what are its features. Also

included is a GIossary of Terms, a necessity for persons not

familiar with telephone equipment operation and installation.
Section 2, Installation, provides important installation

information. This section has step-by-step procedures for
connecting the AT&T Door Phone Controller to such optional
equipment as

■

■

■

■

Remote door unlocking devices
Door ajar switch
Auxiliary alert device
Remote open button

Section 2 also provides an easy to use flow chart, which directs
the installer to the next appropriate section, depending on what
type of telephone equipment (residential, PBX, etc.) will be
used along with your AT&T Door Phone Controller.

Sections 3 through 6 – after reading Section 2 and the flow
chart at the end of that section, the installer is referred to one
of these sections. Depending on which section is referenced,
all the necessary programming, switch setting and operating
information will also be included.

Section 7 provides troubleshooting tips for when installation is
complete and the AT&T Door Phone Controller is not operating
correctly.

Tear-out Reference Card at the end of this manual provides
all the necessary option selection information along with
complete DIP switch settings and their definitions.

1-2 Introduction

The AT&T Door Phone Controller

The AT&T Door Phone Controller provides multi-functional
control for communications to a dedicated door-speaker unit
and a remote door-unlocking device. The AT&T Door Phone
Controller (see Figure 1-1) can be used alone, or it can be
used along with a PBX (Private Branch Exchange) or
communications system to alert personnel within a residence or
building that someone is requesting attention at the entrance.
Operating the unit is simple: when the push button on the door
speaker is pressed, the AT&T Door Phone Controller unit
signals a telephone station(s) and can activate an auxiliary
alerting device (such as a door bell, chime, or tone generator)
within the home or building. Upon hearing the ringing telephone
and/or alerting device, answer the phone and have a two-way
phone conversation with the person at the door. The person
inside the building can also remotely unlock the door, either by
entering a numeric code (Door Code) on the telephone’s

touch-tone keypad, or by pressing a button.

Features

■ Control for remote door unlocking

■ Voice communications with door speaker

■ Door ajar detect

■ Interface for door bell, chime, or tone generator

■ Selectable option functions (from touch tone telephone)

Introduction 1-3

SPEAKER
VOLUME

TALK BACK
VOLUME

DIP SWITCH

LED

Figure 1-1. Front View of the AT&T Door Phone

Controller and Control Panel

1-4 Introduction

Terms You Should Know

AuxiliaryAlert

—A door speaker’s push button can activate a

bell/chime within the building.
Cadence —Telephone Ringing cycle, i.e., 2 second ringing,

4 second no ringing.

C.O. line —Central Office telephone line carrier into building.
EKTS (Electronic Key Telephone System) —Small business

telephone communications system.

Ground Start —One method by which a business telephone

system (PBX) signals the telephone company that you have
gone off-hook. Used in most business applications – contact
your telephone company to determine if you have Ground or

Loop Start.
Loop Start —One method of signaling the telephone company

that your telephone has gone off-hook – used for most

residential and communication system applications. Contact

your telephone company to determine if you have Ground or

Loop Start.
PBX (Private Branch Exchange) —Business telephone

system.

Ringdown

—In Station mode, the activation of the door

speaker’s push button will cause the AT&T Door Phone

Controller to dial the number of a predetermined telephone
station number (PBX or EKTS must be installed). When the

telephone is answered, there is direct two-way communication
with the door speaker.

Trunk Port —PBX connection for Central Office or trunk lines.

Station Port —PBX connection for station sets.

Hook-Flash —This causes telephone equipment to go “on

hook” for a duration usually less than a second (not long
enough to be considered as calling for the circuit to be

released.)

Introduction 1-5

Installation Procedures

2

Installation Procedures 2-1

2-2 Installation Procedures

Important Safety Instructions

When using your telephone equipment, basic safety
precautions should always be followed to reduce the risk of fire,
electric shock and injury to persons, including the following:

1.

2.

3.

4.

5.

6.

7.

Read and understand all instructions.

Follow all warnings and instructions marked on the

product.

Unplug this product from the wall outlet before cleaning.
Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.

Do not use this product near water, for example, near a
bath tub, wash bowl, kitchen sink, or laundry tub, in a
wet basement, or near a swimming pool.

Do not place this product on an unstable cart, stand, or

table. The product may fall, causing serious damage to
the product.

Slots and openings in the cabinet and the back or bot­tom are provided for ventilation. To avoid overheating,
these openings must not be blocked or covered. The
openings should never be blocked by placing the
product on the bed, sofa, rug, or other similar surface.
This product should never be placed near or over a

radiator or heat register. This product should not be

placed in a built-in installation unless proper ventilation

is provided.

This product should be operated only from the type of
power source indicated on the marking label. If you are

not sure of the type of power supply to your home, con-

sult your dealer or local power company.

Installation Procedures 2-3

8.

WARNING: RISK OF ELECTRICAL SHOCK –

EQUIPMENT MUST BE PROPERLY GROUNDED.

Your AT&T equipment requires a properly grounded
three-prong power receptacle for safe operation. Have
the receptacle checked by a qualified electrician before
connecting this equipment. Do not cut or remove the
third (ground) prong from the power transformer. Do

not use two-prong extension cords or adapters to
defeat the safety features of this equipment. If you
have a two-prong receptacle, it must be replaced with
a three-prong receptacle, installed by a qualified
electrician.

9. Do not allow anything to rest on the power cord. Do not
locate this product where the cord will be abused by per­sons walking on it.

10. Do not overload wall outlets and extension cords as this
can result in the risk of fire or electric shock.

11.

Never push objects of any kind into this product through
cabinet slots as they may touch dangerous voltage
points or short out parts that could result in a risk of fire
or electric shock. Never spill liquid of any kind on the
product.

12. To reduce the risk of electric shock, do not disassemble

this product, but take it to a qualified serviceman when
some service or repair work is required. Opening or

removing covers may expose you to dangerous voltages

or other risks. Incorrect reassembly can cause electric
shock when the appliance is subsequently used.

13. Unplug this product from the wall outlet and refer servic­ing to qualified service personnel under the following

conditions:
A. When the power supply cord or plug is damaged or

frayed.

B. If liquid has been spilled into the product.

2-4 Installation Procedures

14.

15.

C. If the product has been exposed to rain or water.
D. If the product does not operate normally by following

the operating instructions. Adjust only those controls
that are covered by the operating instructions, because

improper adjustment of other controls may result in
damage and will often require extensive work by a
qualified technician to restore the product to normal
operation.

E. If the product has been dropped or the cabinet has

been damaged.

F. If the product exhibits a distinct change in performance.
Avoid using a telephone (other than a cordless type)

during an electrical storm. There may be a remote risk
of electric shock from lightning.

Do not use the telephone to report a gas leak in the

vicinity of the leak.

SAVE THESE INSTRUCTIONS.

General Information

Please adhere to the following precautions:

1. Never install telephone wiring during a lightning storm.

2. Never install telephone jacks in wet locations unless the
jack is specifically designed for wet locations.

3. Never touch uninsulated telephone wires or terminals un-

less the telephone line has been disconnected at the
network interface.

4. Use caution when installing or modifying telephone lines.

Installation Procedures 2-5

Introduction

This section provides instructions for installing your AT&T Door

Phone Controller. Provided are installation instructions for an

Contact a licensed electrician
for installation of optional
devices such as an electric
strike plate and auxiliary alert
device which may require
electrical wiring. For the electric
strikeplate, a low voltage device
(24 volts or less) is
recommended.

optional electric door strike plate, door ajar contacts, and an
auxiliary alert device. These optional components must be
installed prior to the installation of your AT&T Door Phone
Controller. (Refer to the respective installation manuals for
specific mounting and wiring instructions.) The flow-chart
provided in Figure 2-9, will help direct you to the next
appropriate section for attaching the AT&T Door Phone
Controller to the telephone equipment in your home or
business (also see Compatibility Chart on page iii).

Inside the AT&T Door Phone Controller shipping carton

you will find:

■ The AT&T Door Phone Controller unit

■ Mounting template (along the edge of the Tear-out

Reference Card)

■ Power cord and attached transformer

■ Two mounting screws

■ Two 6-conductor modular-to-modular 6 foot long cables

■ Terminal strip connector

■ Instruction Manual (this manual)

Door Phone Controller Back Panel Connections

The 14-contact terminal strip

The AT&T Door Phone Controller back panel (see Figure 2-1)

can be unplugged from the back

has two RJ11 modular connectors and one 14-contact “hard

panel.

wire” terminal strip. These connections provide:

■ Auxiliary Alert Contacts (2) – output to optional door

bell/chime device.

■ Door Latch Contacts (3) – output to an electric door strike.

■ Remote Open Button Contacts (2) – input from a remote

(inside) door open button.

2-6 Installation Procedures

■ Door Ajar Switch Contacts (2) – input from door ajar device.

■ Door Bell Button Contacts (2) – input from door bell/chime

button.

■ Shield Contact (1) – used for shielding audio speaker wires.

■ Speaker Contacts (2) – provides audio connection to door

speaker(s).

Host system RJ11 (J1 Host) modular jack interface —This

jack is provided for connection to your own telephone set, or

business telephone system (PBX or EKTS) (the host system).

Central Office RJ11 (J2) modular jack interface —This jack is
provided for connection to a C.O. telephone line (from
telephone company’s central office).

WARNING: RISK OF ELECTRICAL SHOCK —

EQUIPMENT MUST BE PROPERLY GROUNDED.

Your AT&T equipment requires a properly grounded
three-prong power receptacle for safe operation. Have
the receptacle checked by a qualified electrician before
connecting this equipment. Do not cut or remove the
third (ground) prong from the power transformer. Do

not use two-prong extension cords or adapters to
defeat the safety features of this equipment. If you

have a two-prong receptacle, it must be replaced with
a three-prong receptacle, installed by a qualified

electrician.

Installation Procedures 2-7

AT&T DOOR PHONE
CONTROLLER
BACK PANEL

RJ11

CONNECTORS

14-POSITION

TERMINAL STRIP

(REMOVABLE)

Figure 2-1. Door Phone Controller Back Panel Connections

Prior To Installation

NOTE: Consider

1.

2.

3.

4.

Never install
Never install

the following items before installation:

telephone wiring during a lightning storm.
telephone jacks in wet

jack is specifically designed for wet

locations unless the

locations.

Never touch uninsulated telephone wires or terminals un­less the telephone
network interface.

Use caution when

line has been disconnected at the

installing or modifying

telephone lines.

2-8 Installation Procedures

AT&T Door Phone Controller Location

You need to determine exactly where you want the unit
installed and how you want it configured. Another consideration
is what components will be used with the AT&T Door Phone
Controller. Here are some questions that must be answered
prior to installation:

■ Do you currently have a door speaker installed?

■ Do you have a business telephone system (PBX or EKTS)?

■ Do you have a remote door unlock mechanism (electric

door strike) installed?

■ Do you have an auxiliary alert system (door chime) currently

installed?

■ Do you have a door ajar switch installed?

The AT&T Door Phone Controller is designed to control the
functions of the components mentioned above, and how you
answer these questions will determine how the AT&T Door

Phone Controller will be installed, optioned, and operated.
When selecting options for your AT&T Door Phone Controller,

e.g., to change the door-unlock security code, the AT&T Door

Phone Controller unit must be DIP switch selected to Option

Selection mode. For this reason you may want to install the
AT&T Door Phone Controller unit in a secure area which has
access only by authorized personnel. If you are installing the

unit in a business environment (currently have PBX/EKTS), you

may wish to install the unit along with the telephone equipment.

(See Figure 2-2 for a typical installation diagram.)

Installation Procedures 2-9

AT&T DOOR PHONE
CONTROLLER
(Secure Location)

MODULAR
PHONE

22-24 GAUGE
WIRE

CABLE

AUX. ALERT DEVICE

TELEPHONE

EXTENSION

22-24 GAUGE
WIRE

DOOR AJAR

SWITCH

EXISTING

DOOR SPEAKER

PHONE

LINES

W/ PUSH BUTTON

SHIELDED TWISTED
PAIR SPEAKER
WIRES

TELEPHONE
EQUIP.

22-24 GAUGE

ATTENDENT

POSITION

ELECTRIC

WIRE

DOOR STRIKE
PLATE DEVICE

Figure 2-2. Typical AT&T Door Phone Controller Installation

2-10 Installation Procedures

Installation

Mounting Instructions

The AT&T Door Phone Controller can be placed on a flat table
or shelf, or mounted to a wall.

Wall Mount Instructions

When moving AT&T Door
Phone Controller or adding/
removing cables from back

panel, unplug transformer from

120V outlet.

Also unplug the terminal strip
and modular phone connectors
on the back panel.

The AT&T Door Phone Controller is shipped with a keyhole
mounting template and mounting screws. Follow the steps
below to mount the Door Phone Controller to a wall.

1.

Place template (tear-out page at end of manual) over

desired wall mounting location and mark screw positions.

2. Use a Philips screwdriver to screw each of the two
screws into the marked screw positions.

IMPORTANT: Do not drive screws all the way into

wall; adequate space (5/16'') must be left to position
the AT&T Door Phone Controller bottom panel

keyholes over screw heads.

3. Mount the AT&T Door Phone Controller over the protrud­ing screw heads and seat unit firmly to the wall. See
Figure 2-3.

WARNING: RISK OF ELECTRICAL SHOCK —

EQUIPMENT MUST BE PROPERLY GROUNDED.

Your AT&T equipment requires a properly grounded
three-prong power receptacle for safe operation. Have
the receptacle checked by a qualified electrician before
connecting this equipment. Do not cut or remove the
third (ground) prong from the power transformer. Do

not use two-prong extension cords or adapters to
defeat the safety features of this equipment. If you
have a two-prong receptacle, it must be replaced with
a three-prong receptacle, installed by a qualified
electrician.

Installation Procedures 2-11

4. When the AT&T Door Phone Controller is securely
mounted to the wall, then all cables and wires can be

connected to the terminal strip and then plugged into
the back panel.

DOOR PHONE
CONTROLLER
BACK PANEL

KEYHOLE
MOUNTING
SLOTS

5/16'' TYPICAL

8.1''

MOUNTING SCREWS

Figure 2-3. Mounting AT&T Door Phone Controller to

Wall

2-12 Installation Procedures

Connecting Door Speaker, Door Button, and Door

Ajar Switch to the AT&T Door Phone Controller

Use the diagram in Figure 2-4 and follow the steps below:

Polarity of wires is not important.

Total wire length should not

exceed 1500 feet.

Door Ajar switch should be
closed when door is closed. If a
door ajar switch will not be
used, you must leave a jumper
installed across the two “Door
Ajar Switch” terminals.

1.

2.

3.

Run shielded twisted pair wires (22–24AWG) from the
“Speaker” terminals on the rear panel of the AT&T Door
Phone Controller (13 & 14) to the installed Door
Speaker (1 & 2). Connect the shield to the “Shield” ter­minal on the controller (12).

Run 2 wires (22–24AWG) from the “Door Bell Button”
terminals (10 & 11) to the door bell push button on the
installed door speaker/push button assembly (3 & 4).

Run 2 wires (22-24AWG) from the optional “Door Ajar
Switch” terminals (8 & 9) to the installed door ajar
switch.

Remote Door Open Switch (optional)

A remote door open switch (normally-open contact) provides
additional means for opening an electric door opening device.
To connect wires for a remote door open switch use the
diagram in Figure 2-5 and follow the steps below.

1. Install the remote door open button in desired location
using manufacturer’s installation instructions.

2. Run 2 wires (22–24AWG) from the installed (normally­open contact) remote door open switch to the “Remote

Door Open” terminals (6 & 7) on the AT&T Door Phone

Controller back panel (polarity of wires is not important).

Installation Procedures 2-13

AT&T DOOR PHONE CONTROLLER
BACK PANEL

AT&T DOOR SPEAKER
AND DOOR BELL

BUTTON

SHIELDED, TWISTED PAIR, 24 AWG.

APPROX. 1500 FT. MAXIMUM LENGTH

JUMPER THE TWO DOOR AJAR SWITCH TERMINALS

IF DOOR AJAR DEVICE IS NOT USED

DOOR AJAR SWITCH

NOTE: MAGNETIC SWITCH
IS CLOSED WHEN DOOR
IS CLOSED

Figure 2-4. Connections for AT&T Door Phone Speaker, Door Button and Door

Ajar Devices

2-14 Installation Procedures

AT&T DOOR PHONE
CONTROLLER BACK PANEL

MOMENTARY
PUSH BUTTON
NORMALLY OPEN

Figure 2-5. Connections for Remote Door Open Switch (optional)

Electric Door Strike Plate Device (optional)

An electric door strike plate is used to automatically open a
closed or locked door. A low-voltage device (24V or less) is

If your Electric Door Strike Plate

recommended. The AT&T Door Phone Controller can provide

has more than a 1 Amp current

an open or closed contact when requested to interface to and

draw, then an external relay

to operate your electric door strike plate device. Once an

arrangement is required.

electric door strike plate has been installed, it can be controlled
by the AT&T Door Phone Controller unit, either from entering
the appropriate digits from a touch tone phone or from the

Remote Open switch (push button).

Follow the
door strike

steps below and refer to Figure 2-6 for wiring the

plate device to the AT&T Door Phone Controller.

Installation Procedures 2-15

Do not include strike plate wires

within the same cable as others
wires connecting to the AT&T

Door Phone Controller.

1.2.Have the electric door strike pIate device installed as in­structed by the manufacturers installation manual.
Check electric installation codes and local ordinances

for exact wiring requirements in your area.

Normally Open (N.O.), Normally Closed (N.C.), and
Common (C.) relay contacts are accessible at the Door
Phone Controller terminal block. Wire these to the door

strike plate device and its power source as instructed by
your manufacturer’s installation manual. If no instruc­tions exist, wire the above relay contacts to the existing
door open button (see #3 below).

AT&T DOOR PHONE

CONTROLLER BACK PANEL

ELECTRIC
DOOR STRIKE
PLATE DEVICE

WITH POWER

SOURCE

Figure 2-6. Connections for Electric Door Strike Plate (optional)

2-16 Installation Procedures

NOTE: One or the other will

apply, not both.

3. Verify all connections when connecting the door strike
contacts on the AT&T Door Phone Controller to existing
door open buttons. Make sure of the following:

■

■

Auxiliary Alert Device

The NO and C contacts are connected in parallel to a
normally-open button.

The NC and C contacts are connected in series to a
normally-closed button.

(optional)

In most configurations, the Door Phone Controller will cause a

telephone to ring when the doorbell button is pushed. An aux-

iliary alert device (chime, bell, horn, tone generator, etc.) can

also be used as an alert to notify the person inside the building

that the doorbell button has been pushed (Auxiliary Alert

If the Auxiliary Alert Device has

Mode). A low-voltage device (24V or less) is recommended.

more than a 1 Amp draw, then

Follow the steps below (refer to Figure 2-7) for wiring auxiliary

an external relay arrangement

will be required.

alert device (door bell/chime) to the Door Phone Controller:

1.

Install the auxiliary alert device (door bell/chime) as in-

structed by the manufacturer’s installation manual.

See Appendix E for specific

2. The Normally Open (N.O.) and Common (C.) relay con-

auxiliary alert device installation

tact, located on the Door Phone Controller back panel

information.

(see Figure 2-7), are accessible at the Door Phone Con-

troller terminal block. Wire these to the auxiliary alert
device and it’s power source as instructed by the

manufacturer’s installation manual.

Connecting Power

When the Door Phone Controller has been mounted to a wall
or placed on a shelf and all cables and wires have been
connected to the back panel, plug the transformer into a 120
VAC outlet. See Figure 2-8.

Installation Procedures 2-17

AT&T DOOR PHONE
CONTROLLER BACK PANEL

DOOR BELL/CHIME
(AUXILIARY ALERT
DEVICE) WITH POWER

SOURCE

Figure 2-7. Connections for Auxiliary Alert Device (optional)

2-18 Installation Procedures

Figure 2-8. Plug the AT&T Door Phone Controller Power

Cord and Transformer to 120 VAC Outlet

Installation Procedures 2-19

Operation and Controls Information

Door Ajar Function

Default Condition —After the door has been opened by the
four digit code or the remote push button, the Door Phone
Controller will wait for the Door Ajar Call-back time-out to
elapse. At this point if the door is still open, the Door Phone
Controller will call back the phone/chime for the duration of the

ring/chime duration and then repeat after the Door Ajar
Call-back time-out has elapsed again. If the phone is answered
during that time, a Door Ajar Tone will be heard. The Door Ajar
Tone will cease when any DTMF Digit is pressed, or the user
speaks or hangs-up.

Alternate Condition —If the door is ever opened and the Door
Ajar Call-back time-out has elapsed, the Door Phone Controller
will call back the phone/chime for the duration of the ring/chime
duration and then repeat after the Door Ajar Call-back time-out
has elapsed again. If the phone is answered during that time, a
Door Ajar Tone will be heard. The Door Ajar Tone will cease
when any DTMF digit is pressed, or the user speaks or
hangs-up.

Speaker Volume Control

You can adjust the volume level of the door speaker by
adjusting the Speaker Volume Control on the Door Phone
Controller front panel (see Figure 1-1).

Talk Back Volume Control

You can adjust the volume level from the door speaker to an
inside telephone extension by adjusting the Talk Back Volume
Control (see Figure 1-1).

2-20 Installation Procedures

LED

When the AT&T Door Phone Controller is powered on and

functioning normally, the LED (Figure 1-1) should continually

blink 2.5 times a second. If there is a malfunction the LED will

blink faster than 4 times a second (see Troubleshooting
section) or go out completely. If the LED is not lit, check power
to unit first before calling for repair.

Installation Procedures 2-21

Connecting the AT&T Door Phone Controller to

Your Telephone Equipment

Use the flow chart in Figure 2-9 to assist in configuring the
AT&T Door Phone Controller to your residential or
business-type telephone equipment. Answer each appropriate
question in the flow chart and refer to the section specified
within this manual. Then proceed with the necessary
installation and option selection requirements. NOTE: If you

are installing the AT&T Door Phone Controller into a
typical Home/Residential environment (no PBX) refer to
Section 3 now.

REFER TO
SECTION 3

NO

Do

you have a

Business

Telephone

System

?

YES

YES

Spare

Trunk Port

Available*

?

YES

NO

Spare

Station Port

Available*

?

NO

*You must refer to your telephone system
owner manual for description of this
port.

RESIDENTIAL INSTALLATION

REFER TO

SECTION 4

PBX WITH DEDICATED

TRUNK PORT

REFER TO
SECTION 5

PBX WITH STATION PORT

REFER TO

SECTION 6
PBX WITHOUT DEDICATED
TRUNK OR STATION PORT

Figure 2-9. Configuration of Telephone Equipment Flow Chart

2-22 Installation Procedures

Installation for Home/Residential

(Trunk Saver Mode - Loop Start)

3

Installation

— Home/Residential 3-1

Overview

You may also use the AT&T

Door Phone Controller with a

dedicated phone.

This section provides installation and operation information for
applications such as residences or small businesses which do

not have a telephone system.

When your AT&T Door Phone Controller is installed with
standard telephone equipment (no PBX), the unit may operate
in Shared Line Mode which permits a single telephone set to
be shared between the AT&T Door Phone Controller and an
outside line (to a Central Office). Thus, the standard telephone
equipment can be used for normal call operations as well as
servicing the door.

DIP Switch Selections

To customize the AT&T Door Phone Controller to your specific

installation and option requirements, you must properly set the
8 position DIP switch located on the AT&T Door Phone
Controller front panel (see Figure 1-1).

CAUTION: Do not connect to the modular jacks on

the AT&T Door Phone Controller until after the DIP
switches have been properly set.

Complete information about the

When using the Door Phone Controller with a small business or

DIP switch settings can be

residential telephone equipment (no PBX installed), the DIP

found in Appendix A.

switches must be set as shown in Figure 3-1 (all OFF).

3-2 Installation —

Home/Residential

LEGEND

1 2 3 4 5 6 7 8

ON

Off On

NOTE: The Forced Disconnect

I

Timeout option does not apply

I

— —

when DIP switch position 8 is ON.

ON for
Option Selection
Mode Only

Figure 3-1 Home/Residential DIP Switch Settings

.

Installation

When moving the Door Phone

Connect the Door Phone Controller using the information in

Controller or adding or removing

Section 2. Refer to Figure 3-2.

cables from the back panel,
unplug the transformer from
120V outlet. Also unplug the
terminal strip and modular
phone connectors on the back
panel.

Installation — Home/Residential 3-3

AT&T DOOR PHONE CONTROLLER

BACK PANEL

OPTIONAL

TO C.O.

TO DOORBELL BUTTON

TO DOOR SPEAKER

TO DOOR AJAR SWITCH

TO REMOTE DOOR OPEN SWITCH

TO DOOR STRIKE PLATE DEVICE

TO AUXILIARY ALERT DEVICE (DOOR BELL/CHIME)

(Outside Line)

TO TELEPHONES

Figure 3-2. Connecting AT&T Door Phone Controller to Standard Telephone

Equipment

3-4 Installation — Home/Residential

Option Selection

The final step of the installation procedure is selecting options
for your AT&T Door Phone Controller. The selection of these

Refer to Appendix B for a
detailed explanation of each of

options must be done while in the Option Selection Mode. This

these options.

mode lets you control such things as:

■

■

■

■

■

■

■

■

■

Delay Before Door Ajar Call-Back

Ring/Chime Cadence

Ring/Chime Duration
Door Unlock Code
Door Unlock Duration
Enable Door Code
Door Ajar Mode
Forced Disconnect

Time-Out

Reset Options to Factory Defaults

Any or all options may be

reselected in any order.

Follow the steps below to select options for the Door Phone
Controller.

1.

Select Option Selection Mode by setting position 8

of the Door Phone Controller DIP switch to the ON

position (see Figure 1-1).

2. Once the DIP switch has been set, you must make con­nection to the door speaker by “hook-flashing” the
phone (within 5 seconds) and entering “##3” on the

telephone keypad (option selection mode is active as
soon as you hear a distinctive dial tone).

3. Use Table 3-1 to make each option selection.

Installation — Home/Residential 3-5

Table 3-1. AT&T Door Phone Controller Option Selection Information

Mode Option/

Listen

Listen

Options

Verify

Press

Press

For

Default

Delay Before

To Select Option

00

Single 000 to 255 for 0 to 255 Double

30 sec.

Door Ajar

Beep seconds of delay after strike Beep

Call-back

To Verify

01

plate release stops until
AT&T Door Phone Controller
calls back to indicate that
door is ajar

Ring/Chime

To Select Option 10

Single 24 (for 2 sec. on 4 sec. off

Double

2 sec./

Cadence

Beep cadence)

or

Beep 4 sec.

To Verify

11

15 (for 1 sec. on 5 sec. off
cadence)

Ring/Chime To Select Option 20

Single 00 to 99 (0 to 99 second(s)

Double

30 sec.

Duration

Beep

ring/chime)

Beep

To Verify

21

Door Unlock

To Select Option 30

Single 4 digits (first digit must be

Double 6736

Code

Beep 0,3,4,5,6,7 or 8

Beep

“OPEN”

To Verify

31

remaining digits can be set
from 0 to 9)

Door Unlock

To Select Option 40

Single 00 to 99 (door lock active

Double 4 sec.

Duration

Beep time in sec.)

Beep

To Verify

41

Enable Door

To Select Option 50

Single

1

Enable door code Double

1

Code

Beep 0 Disable door code

Beep

(Enabled)

To Verify

51

Door Ajar To Select Option 50

Single 2 For callback after strike

Double 2

Mode

Beep

plate release only

Beep

To Verify

51

3 For callback anytime

door is opened

Forced

To Select Option 60

Single 010 to 255 (unit disconnects

Double 120 sec.

Disconnect

Beep

in 10 to 255 sec.)

Beep

Time-Out

To Verify

61

Reset Options

To Select Option 70

Single ## (to restore factory default

Double

N/A

to Factory

Beep

conditions)

Beep

Defaults

To Verify

71

NOTE: The Door Ajar Delay (Option Selection) will begin when the call to the door speaker is disconnected.

.

3-6 Installation —

Home/Residential

The Forced Disconnect

4. To exit option selection mode, press “##3” on the

Time-out option does not apply

telephone keypad (you will hear 2 beeps). Hang up the

when setting options (unless 2

minutes elapse without a

phone.

Touch-Tone selection)

5. Set position 8 of the AT&T Door

switch back to the OFF position.

Phone Controller DIP

Operation –

Basic Door Answer Function

Visitor Presses Door Speaker Button

When a visitor presses the door speaker push button, the
AT&T Door Phone Controller will signal the telephone

equipment inside your home or building to ring, and activate a
door-bell/chime device (optional). Any additional presses on the
door speaker push button will be ignored until the option
selected ring/chime duration has expired (with the exception

that a confirmation tone will still be sent to the speaker when
the door button is pressed).

Answering a Call from the Door Speaker

The person inside the building can simply answer the ringing
phone and establish two-way communications with the door
speaker. To open the door, the person inside the building either
enters the Door Code on the telephone’s keypad or presses

the customer provided door-unlock push button. Either of these

actions will activate the customer provided electric door strike
plate device.

Installation —

Home/Residential 3-7

As an alternative response when the telephone or door
bell/chime is heard, the person inside the building can press

the door-unlock push button, which will stop the ringing and will

open the door. This allows the door to be unlatched without the

use of a phone.

Calling the Door Speaker from Inside the Building

To initiate a call to the door, the person within the building
simply takes the telephone off-hook and hook-flashes the
telephone within the first 4 seconds. At this point, there will be
direct two-way communication from within the building to the
door speaker.

Telephone Line In Use When Visitor Presses Door
Speaker Button

Once the push button is

pressed, you can “Hook Flash”

to the door speaker and then

back to the original call only

once, unless the push button is

pressed again.

If you forget to hook-flash back
to the original call, the AT&T
Door Phone Controller will call

you back.

If a visitor presses the door speaker button while an existing

call is already taking place on the C.O. line, the AT&T Door

Phone Controller will generate a “door alert” signal to indicate
a visitor needs attention at the entrance. The person inside the
building can hook-flash the phone and be in direct two-way
communication to the door speaker. Then normal AT&T Door
Phone Controller functions can take place. When door phone

functions have been completed, i.e., door has been remotely

opened, hook-flashing the phone again within the forced
disconnect timeout (or pressing 9) will return the line back to

the original call. This feature operates much like a call-waiting
function.

3-8 Installation — Home/Residential

Telephone Line In Use With Door When Incoming Call
Arrives

If there is a call in progress between the door speaker and a
person inside the building and a C.O. call comes in, the person
inside the building (not the door speaker) will hear a call

waiting tone. The person inside the building can hook-flash the
phone (or dial 9) and communicate with the incoming caller.

When the call is complete, the person inside the building hangs

up the phone or to speak with the person at the door speaker

again, the person inside the building must hook-flash the phone

(within 4 seconds after picking up the receiver).

Installation —

Home/Residential 3-9

Installation for Telephone System With

Available Dedicated Trunk Port

4

Installation - Dedicated Trunk Port 4-1

Overview

This section provides installation and operation information for
installations with a telephone system that has an available
Dedicated Trunk port.

DIP Switch Selections

Complete information about the To customize the AT&T Door Phone Controller to your specific

DIP switch settings can be

installation and option requirements, you must properly set the

found in Appendix A.

8-position DIP switch located on the AT&T Door Phone
Controller front Panel (see Figure 4-1).

CAUTION: Do not connect to the modular jacks on the

AT&T Door Phone Controller until after the DIP switches
have been properly set.

Use the Flow Chart in Figure

When using the AT&T Door Phone Controller with a telephone

4-1 to properly set the DIP

system which has an available dedicated trunk, set the DIP

switch.

switch as shown in Figure 4-1.

Prior to setting this DIP switch,

you must know if the dedicated trunk is Loop Start or Ground

Start; this information can be obtained from your local

telephone company.

4-2 Installation - Dedicated Trunk Port

1 2 3 4 5 6 7 8

LEGEND

ON

Off On

LOOP START

. . . The C.O.
(Trunk Saver Mode)

Immediately

after cut-thru

(Dialing Trunk) to AT&T

Door Phone Controller,

what do you want to

be connected

to...?

.

. . The DOOR

(Port Saver Mode)

1 2 3 4 5 6 7 8

ON

LOOP START

ON for
Option Selection
Mode Only

Figure 4-1. DIP Switch Setting for PBX with Dedicated Trunk Port

Installation

When moving the AT&T Door
Phone Controller or adding or
removing cables from the back

panel, unplug transformer from
120V outlet. Also unplug the

To customize the AT&T Door Phone Controller use the
information supplied in Section 2 and the diagram in Figure
4-2a. For ground start installations, also see Figure 4-2b.
phone connectors on the back panel.

terminal strip and modular

cords.

Install the AT&T Door Phone Controller using the information

supplied in Section 2 and the diagram in Figure 4-2a. For

Complete information regarding

ground start installations, also see Figure 4-2b.

each DIP switch position can be
found in Appendix A.

Installation - Dedicated Trunk Port 4-3

AT&T DOOR PHONE
CONTROLLER BACK PANEL

TERMINAL BLOCK “HARD

WIRE” CONNECTOR

NOT USED

TO DOOR SPEAKER

TO DOOR BELL BUTTON

TO DOOR AJAR SWITCH

TRUNK PORT

STATION
PORT

TO C.O.

TRUNK PORT

NOTE: For Ground Start installations
see Figure 4-2b.

TO REMOTE DOOR OPEN SWITCH

OPTIONAL

TO DOOR STRIKE PLATE DEVICE

TO AUXILIARY ALERT DEVICE (DOOR BELL/CHIME)

TELEPHONE SYSTEM

TO C.O. TRUNK PORT

STATION
PORT

Figure 4-2a. Connecting Door Phone Controller to Standard Telephone Equipment

4-4 Installation - Dedicated Trunk Port

TO AT&T DOOR PHONE CONTROLLER
J1 CONNECTORS

TO “SHIELD” TERMINAL (12) ON AT&T

DOOR PHO

NE CONTROLLER

TELEPHONE SYSTEM
GROUND TERMINAL

TRUNK PORT STATION

PORT

TRUNK PORT

TO C.O.

TRUNK PORT

STATION

PORT

NOTE: For Ground Start installations:
Connect the green wire to Tip
and the red wire to Ring.

TELEPHONE SYSTEM

Figure 4-2b. Ground Start Installations

Installation - Dedicated Trunk Port 4-5

Option Selection

Refer to Appendix B for a

The final step of the installation procedure is selecting options

detailed explanation of each of

for your AT&T Door Phone Controller. The selection of these

these options.

options must be done while in the Option Selection Mode. This
mode lets you control such things as:

■

■

■

■

■

■

■

■

■

Delay Before Door Ajar Call-Back
Ring/Chime Cadence

Ring/Chime Duration
Door Unlock Code
Door Unlock Duration
Enable Door Code
Door Ajar Mode

Forced Disconnect Time-Out

Reset Options to Factory Defaults

4-6 Installation - Dedicated Trunk Port

1.

2.

Any or all options may be

3.

reselected in any order,
The Forced Disconnect

4.

Time-out option does not apply
when setting options (unless 2

minutes elapse without a

Touch-Tone selection).

5.

Follow the steps below to select options for your AT&T Door
Phone Controller.

CAUTION: Never connect an AT&T DOOR PHONE

CONTROLLER with the DIP Switches optioned for TRUNK
access to a STATION LINE! Doing so may cause damage
to the STATION LINE and/or the AT&T DOOR PHONE
CONTROLLER!

Select Option Selection Mode by setting position 8
of the AT&T Door Phone Controller DIP switch to
the ON position (see Figure 1-1).

Once the DIP switch has been set, you must make con­nection to the door speaker by accessing the trunk
connected to the AT&T Door Phone Controller. At this
point you must enter “##3” on the telephone keypad (op­tion selection mode is active as soon as you hear a
distinctive dial tone).

Use Table 4-1 to make each option selection.
To exit option selection mode, press “##3” on the

telephone keypad, you will

phone.
Set position 8 of the AT&T

switch (Figure 1-1) back to

hear 2 beeps. Hang up the

Door Phone Controller DIP
the OFF position.

Installation - Dedicated Trunk Port 4-7

Operation –

Basic Door Answer Function

Table 4-1. AT&T Door Phone Controller Option Selection Information

Mode Option/

Listen

Listen

Options

Verify

Press

For

Press

For

Default

Delay Before To Select Option

00

Single 000 to 255 for 0 to 255

Double 30 sec.

Door Ajar

Beep seconds of delay after strike

Beep

Call-back

To Verify

01

plate release stops until
AT&T Door Phone Controller
calls back to indicate that
door is ajar

Ring/Chime To Select Option

10

Single 24 (for 2 sec. on 4 sec. off

Double

2 sec./

Cadence

Beep cadence)

or

Beep 4 sec.

To Verify

11

15 (for 1 sec. on 5 sec. off
cadence)

Ring/Chime To Select Option

20

Single 00 to 99 (0 to 99 second(s)

Double 30 sec.

Duration

Beep

ring/chime)

Beep

To Verify

21

Door Unlock To Select Option

30

Single 4 digits (first digit must be

Double 6736

Code

Beep 0,3,4,5,6,7 or 8

Beep “OPEN”

To Verify

31 remaining digits can be set

from 0 to 9)

Door Unlock To Select Option

40

Single

00 to 99 (door lock active

Double

4 sec.

Duration

Beep time in sec.)

Beep

To Verify

41

Enable Door To Select Option

50

Single 1

Enable door code Double 1

Code

Beep 0 Disable door code

Beep

(Enabled)

To Verify

51

Door Ajar To Select Option

50

Single

2

For callback after strike

Double

2

Mode

Beep

plate release only

Beep

To Verify

51

3

For callback anytime
door is opened

Forced To Select Option

60

Single

010 to 255 (unit disconnects

Double 120 sec.

Disconnect

Beep in 10 to 255 sec.)

Beep

Time-Out

To Verify

61

Reset Options To Select Option

70

Single ## (to restore factory default

Double

N/A

to Factory

Beep

conditions)

Beep

Defaults

To Verify

71

NOTE: The Door Ajar Delay (Option Selection) will begin when the call to the door speaker is disconnected.

4-8 Installation - Dedicated Trunk Port

Visitor Presses Door Speaker Button

When a visitor presses the door speaker push button, the
AT&T Door Phone Controller will signal the telephone
equipment inside your building to ring and activate a
door-bell/chime (optional). Any additional presses on the door
speaker push button will be ignored (with the exception that a
confirmation tone will still be sent to the speaker when the door
button is pressed).

Answering a Call From the Door Speaker

When a person inside the building hears the telephone ring
and/or the door bell/chime sound, he can simply respond by
answering the ringing phone. At this point, the AT&T Door

Phone Controller will establish two-way communication with the
door speaker. To open the door, the person inside the building

either enters the Door Code on the telephone’s keypad or

presses the door-unlock push button. Either of these actions
will activate the customer provided electric door strike plate
device.

As an alternative response to hearing the telephone or door
bell/chime, the person inside the building can press the
door-unlock push button which will stop the ringing and will
open the door. This allows the door to be unlatched without the
use of a phone.

Calling the Door Speaker

To initiate a call to the Door Speaker, the person inside the
building simply takes the telephone off-hook and accesses the

trunk connected to the AT&T Door Phone Controller.

Installation - Dedicated Trunk Port 4-9

Installation for PBX Equipment With
Available Station Port

5

Installation - Dedicated Station Port 5-1

Overview

This section provides installation and operation information for

installations which use on-premise telephone system that has

an available Dedicated Analog Station Port.

DIP Switch Selections

Complete information about the

To customize the AT&T Door Phone Controller to your specific

DIP switch settings can be

installation and option requirements, you must properly set the

found in Appendix A.

8-position DIP switch located on the AT&T Door Phone
Controller front panel (see Figure 5-1).

CAUTION: Do NOT connect to the modular jacks on

the AT&T Door Phone Controller until after the DIP
switches have been properly set.

Use the flow chart in Figure 5-1

When using the AT&T Door Phone Controller with a telephone

to properly set the DIP switch.

system which has an available dedicated station port, set the
DIP switch as shown in Figure 5-1. Prior to setting this DIP
switch, you must know if the telephone system is configured for

auxiliary alert mode or ringdown mode (see page 1-5 for

explanation of ringdown and auxiliary modes).

5-2 Installation - Dedicated Station Port

LEGEND

AUX. ALERT

1 2 3 4 5 6 7 8

ON

Off

MODE

On

NO

Will you

configure your

telephone system

for Ringdown

?

YES

1 2 3 4 5 6 7 8

ON

RINGDOWN
MODE

ON for
Option Selection
Mode Only

Figure 5-1 DIP Switch Configuration for Telephone System with Dedicated

.

Station Access, Station Mode

Installation

When moving the AT&T Door

To customize the AT&T Door Phone Controller for this type of

Phone Controller or adding or

installation, you must properly configure the 8-position DIP

removing cables from the back

switch located on the Door Phone Controller front panel (see

panel, unplug transformer from

120V outlet. Also unplug the

Figure 1-1). Use the Flow Chart in Figure 5-1 to properly set

terminal strip and modular

the DIP switch.

phone
panel.

connectors on the back

Installation - Dedicated Station Port 5-3

Install the AT&T Door Phone Controller using the information in

Section 2. Refer to Figure 5-2.

AT&T DOOR PHONE
CONTROLLER BACK PANEL

NOT USED

TERMINAL BLOCK “HARD

WIRE” CONNECTOR

TO DOOR SPEAKER

TO DOOR BELL BUTTON

TO DOOR AJAR SWITCH

TO REMOTE DOOR OPEN SWITCH

TO DOOR STRIKE PLATE DEVICE

TO AUXILIARY ALERT DEVICE (DOOR BELL/CHIME)

OPTIONAL

TELEPHONE SYSTEM

ANALOG

STATION PORT

TO C.O.

TRUNK PORT STATION

PORT

Figure 5-2. Connecting the AT&T Door Phone Controller to a Telephone System

with Dedicated Analog Station Port

5-4 Installation - Dedicated Station Port

Option Selection

The final step of the installation procedure is selecting options

for your AT&T Door Phone Controller. The selection of these

Refer to Appendix B for a
detailed explanation of each of

options must be done

these options.

mode lets you control

■

■

■

■

■

■

■

■

■

■

■

Delay before Door

while in the Option Selection Mode. This

such things as:

Ajar Call-Back
Ring/Chime Cadence
Ring/Chime Duration
Door Unlock Code
Door Unlock Duration
Enable Door Code
Door Ajar Mode
Forced Disconnect Time-Out
Reset Options to Factory Defaults
Phone Number Storage Memory 1
Phone Number Storage Memory 2

Installation - Dedicated Station Port 5-5

Any or all options may be
reselected in any order.

The Forced Disconnect
Time-out option does not apply
when setting options (unless 2
minutes elapse without a
Touch-Tone selection).

Follow the steps below to select options for the AT&T Door
Phone Controller.

CAUTION: Never connect an AT&T DOOR PHONE

CONTROLLER with the DIP Switches optioned for TRUNK

access to a STATION LINE! Doing so may cause damage

to the STATION LINE and/or the AT&T DOOR PHONE

CONTROLLER!

1.

Select Option Selection Mode by setting position 8

of the AT&T Door Phone Controller DIP switch (see

Figure 1-1) to the ON position.

2. Once the DIP switch has been set, you must make con­nection to the door speaker by calling the extension
number assigned to the Door Phone Station Port. At

this point you must enter “##3” on the telephone

keypad (option selection mode is active as soon as you
hear a dial tone).

3. Use Table 5-1 to make each option selection.

4. To exit option selection mode, press “##3” on the

telephone keypad. You will hear 2 beeps. Hang up the

phone.

5. Set position 8 of the AT&T Door Phone Controller DIP
switch back to the OFF position.

5-6 Installation - Dedicated Station Port

Table 5-1. AT&T Door Phone Controller Option Selection Information

Mode Option/ Listen

Options

Listen

Verify

Press

For

Press

For

Default

Delay Before Door

To Select Option

00

Single 000 to 255 for 0 to 255 seconds Double

30 sec.

Ajar Call-back

Beep of delay after strike plate

Beep

To Verify

01

release stops until AT&T Door
Phone Controller calls back to
indicate that door is ajar

Ring/Chime

To Select Option

10

Single 24 (for 2 sec. on 4 sec. off Double

2 sec./

Cadence

Beep

cadence)

or

Beep

4 sec.

To Verify 11

15 (for 1 sec. on 5 sec. off

cadence)

Ring/Chime

To Select Option 20

Single 00 to 99 (0 to 99 second(s) Double

30 sec.

Duration

Beep

ring/chime)

Beep

To Verify

21

Door Unlock Code

To Select Option 30

Single 4 digits (first digit must be Double

6736

Beep

0,3,4,5,6,7 or 8;

Beep

“OPEN”

To Verify

31

remaining digits can be set from
0 to 9)

Door Unlock

To Select Option 40

Single 00 to 99 (door lock active time Double

4 sec.

Duration

Beep

in sec.)

Beep

To Verify 41

Enable Door Code

To Select Option 50

Single 1 Enable door code

Double

1

Beep 0 Disable door code

To Verify

Beep (Enabled)

51

Door Ajar Mode

To Select Option 50

Single 2 For callback after strike

Double

2

Beep plate release only

Beep

To Verify

51

3 For callback anytime

door is opened

Forced Disconnect

To Select Option 60

Single 10 to 255 (unit disconnects in

Double

120 sec.

Time-Out

Beep

10 to 255 sec.)

Beep

To Verify

61

Reset Options to

To Select Option 70

Single ## (to restore factory default

Double

N/A

Factory Defaults

Beep conditions)

Beep

To Verify

71

Phone Number

To Select Option

80

Single 0 to 20 numerical digits and

Double

#

Storage Memory 1

Beep

❊ ( ❊ = 2 second pause) #

Beep

To Verify

81

terminates entry

Phone Number

To Select Option 90

Single 0 to 20 numerical digits and

Double

#

Storage Memory 2

Beep

❊ ( ❊ = 2 second pause) #

Beep

To Verify

91

terminates entry

Installation - Dedicated Station Port 5-7

Operation

Auxiliary Alert Mode

– Basic Door Answer Function

Visitor Presses Door

When a visitor presses the door speaker push button, the Door

Speaker Button

Phone Controller will activate an auxiliary alert
(door-bell/chime). Any additional presses on the door speaker

push button will be ignored (with the exception that a
confirmation tone will still be sent to the speaker when
button is pressed).

the door

Answering a Call Sent

When a person inside the building hears the door bell/chime

From the Door Phone

sound, he can simply respond by dialing the Door Phone

Controller station number. At this point, the AT&T Door Phone

Controller will establish two-way communications with the door
speaker.

The telephone system must

To open the door, the person inside the building either enters

pass Touch Tones to the station

the Door Code on the telephone’s keypad or presses the

port connected to the AT&T

,

Door Phone Controller in order

customer provided door-unlock push button. Either of these

for the Door Code to be

actions will activate the customer provided electric door

recognized.
Complete installation

instructions for adding an
Auxiliary Alert option can be
found in Appendix E.

Calling the Door
Speaker

release.
As an alternative response to hearing the door bell/chime, the

person inside the building can press the door-unlock push

button which will stop the auxiliary contacts and will open the
door. This allows the door to be unlatched without the use of a

phone.

To initiate a call to the Door Speaker, the person inside the

building simply takes the telephone off-hook and dials the

station phone number of the door speaker.

Ringdown Mode – Basic Door Answer Function

Visitor Presses Door

When a visitor presses the door speaker push button, the

Speaker Button

AT&T Door Phone Controller will activate a door-bell/chime

(optional), go off-hook, and dial the pre-selected stored phone

5-8 Installation - Dedicated Station Port

number, 1 or 2 (these can be selected by pressing ##1 or ##2
once connection to the speaker has been made). Any
additional presses on the door speaker push button will be

ignored while the Door Phone Controller is off-hook.

Answering a Call Sent

When a person answers the ringing telephone, the Door Phone

From the Door Phone

Controller will establish two-way communications with the door

speaker.
To open the door, the person inside the building either enters

the Door Code on the telephone’s keypad or presses the
customer provided door-unlock push button.

Opening door will terminate

station mode access.

Calling the Door
Speaker

Either of these actions will close the metallic contacts which

activate the customer provided electric door release.

To initiate a call to the Door Speaker, the person inside the
building simply takes the telephone off-hook and dials the

station phone number of the door speaker.

Installation - Dedicated Station Port 5-9

Installation for Telephone System
Without Available Dedicated Trunk or
Station Port

6

Installation - No Dedicated Trunk/Station Port 6-1

Overview

This section provides installation and operation information for

installations which use a telephone system that does not have

Ground start trunks will NOT

an available Dedicated Trunk or Station Port. By configuring

operate properly with this

the telephone system to the instructions in this section, your

shared trunk installation. telephone system equipment will operate in Trunk/Port share

mode.

DIP Switch Selections

Complete information about the

To customize the AT&T Door Phone Controller to your specific

DIP switch settings can be

installation and option requirements, you must properly set the

found in Appendix A.

8-position DIP switch located on the AT&T Door Phone
Controller front panel (see Figure 1-1). Use the flow chart in

Figure 6-1 to help configure the DIP switch for either Trunk

Saver or Port Saver Mode.

A trunk shared with the AT&T Door Phone should never be

configured in a telephone system with other trunks in a
common pool or group.

6-2 Installation - No Dedicated Trunk/Station Port

1 2 3 4 5 6 7 8

LEGEND

ON

Off On

LOOP START

.

. . The C.O.

(Trunk Saver Mode)

Immediately

after cut-thru
(Dialing Trunk) to AT&T
Door Phone Controller,

what do you want to

be connected

to...?

.

. . The DOOR

(Port Saver Mode)

1 2 3 4 5 6 7 8

ON

LOOP START

ON for
Option Selection

Mode Only

Figure 6-1. DIP Switch Setting for PBX With Shared Trunk Port

Installation

When moving the AT& T Door
Phone Controller or adding or
removing cables from the back

panel, unplug transformer from

120V outlet, Also unplug the

terminal strip and modular
phone connectors on the back
panel.

Complete information regarding
each of the DIP switch positions
can be found in Appendix A.

Install the AT&T Door Phone Controller using the information in
Section 2. Refer to Figure 6-2.

To customize the AT&T Door Phone Controller for this type of

installation, you must properly set the 8-position DIP switch
located on the AT&T Door Phone Controller front panel (see
Figure 1-1). Use the Flow Chart in Figure 6-1 to properly set

the DIP switch.

CAUTION: Do NOT connect to the modular jacks on

the AT&T Door Phone Controller until after the DIP

switches

have been

Installation

properly set.

- No Dedicated Trunk/Station Port 6-3

AT&T DOOR PHONE
CONTROLLER BACK PANEL

TO DOOR BELL BUTTON

TO C.O.

(TELEPHONE LINE)

TERMINAL BLOCK "HARD

WIRE" CONNECTOR

TO DOOR SPEAKER

TO DOOR AJAR SWITCH

TO REMOTE DOOR OPEN SWITCH

TO DOOR STRIKE PLATE DEVICE

TO AUXILIARY ALERT DEVICE (DOOR BELL/CHIME)

OPTIONAL

TELEPHONE SYSTEM

TRUNK PORT
(LOOP START)

STATION

PORT

TO C.O.

TRUNK PORT

STATION

PORT

Figure 6-2. Connecting the AT&T Door Phone Controller to a Telephone System

With Shared Trunk Port

6-4 Installation - No Dedicated Trunk/Station Port

Option Selection

The final step of the installation procedure is selecting options
for your AT&T Door Phone Controller. The selection of these

Refer to Appendix B for a
detailed explanation of each of

options must be done while in the Option Selection Mode. This

these options.

mode lets you control such things as:

■ Delay Before Door Ajar Call-Back

■ Ring/Chime Cadence

■ Ring/Chime Duration

■ Door Unlock Code

■ Door Unlock Duration

■ Enable Door Code

■ Door Ajar Mode

■ Forced Disconnect Time-Out

■ Reset Options to Factory Defaults

Installation - No Dedicated Trunk/Station Port 6-5

Port Saver or Trunk Saver Mode Installation

Refer to the following instructions for Port Saver Mode or Trunk
Saver Mode installation.

Port Saver Mode

Follow the steps below to set the AT&T Door Phone Controller

for Port Saver Mode.

1.

2.

3.

Any or all options may be

4.

reselected in any order.

The Forced Disconnect
Time-out option does not apply
when setting options (unless 2

5.

minutes elapse without a

Touch-Tone selection).

CAUTION: Never connect an AT&T DOOR PHONE

CONTROLLER with the DIP Switches optioned for TRUNK
access to a STATION LINE! Doing so may cause damage
to the STATION LINE and/or the AT&T DOOR PHONE
CONTROLLER!

Select Option Selection Mode by setting position 8
of the AT&T Door Phone Controller DIP switch (see

Figure 1-1) to the ON position.

Access the trunk (allocated for the AT&T Door Phone
Controller), and make connection to the door speaker by
dialing “1” or “2” within 4 seconds. At this point you

must enter “##3” on the telephone keypad (Option

Selection Mode is active as soon as you hear a distinc-

tive dial tone – if you don’t hear a distinctive dial tone,

check to see if switch 8 is DOWN).

Use Table 6-1 to make each option selection.

To exit Option Selection Mode, press “##3” on the

telephone keypad. You will hear 2 beeps. Hang up

phone.

Set position 8 of the AT&T Door Phone Controller DIP

switch back to the OFF position.

6-6 Installation - No Dedicated Trunk/Station Port

Trunk Saver Mode

Follow the steps below to set the AT&T Door Phone Controller
for Trunk Saver Mode.

1.

Any or all options may be

2.

reselected in any order.

The Forced Disconnect
Time-out option does not apply
when setting options (unless 2

minutes elapse without a

Touch-Tone selection).

3.

4.

5.

CAUTION: Never connect an AT&T DOOR PHONE

CONTROLLER with the DIP Switches optioned for TRUNK
access to a STATION LINE! Doing so may cause damage
to the STATION LINE and/or the AT&T DOOR PHONE
CONTROLLER!

Select Option Selection Mode by setting position 8
of the AT&T Door Phone Controller DIP switch (see
Figure 1-1) to the ON position.

Access the Trunk (allocated for AT&T Door Phone Con-

troller) and make connection to the door speaker by

“Hook-Flashing” the phone. At this point you must enter
“##3” on the telephone keypad (Option Selection Mode
is active as soon as you hear a distinctive dial tone – if

you don’t hear a distinctive dial tone, check to see if

switch 8 is DOWN).
Use Table 6-1 to make each option selection.

To exit Option Selection Mode, press “##3” on the

telephone keypad, you will hear 2 beeps. Hang up

phone.
Set position 8 of the AT&T Door Phone Controller DIP

switch back to the OFF position.

Installation - No Dedicated Trunk/Station Port 6-7

Table 6-1. AT&T Door Phone Controller Option Selection Information

Mode Option/ Listen Listen

Options

Verify

Press

For

Press

For

Default

Delay Before

To Select Option

00

Single 000 to 255 for 0 to 255 Double 30 sec.

Door Ajar

Beep

seconds of delay after strike

Beep

Call-back

To Verify 01

plate release stops until
AT&T Door Phone Controller

calls back to indicate door is

ajar

Ring/Chime

To Select Option

10

Single 24 (for 2 sec. on 4 sec. off Double

2 sec./

Cadence

Beep

cadence)

or Beep

4 sec.

To Verify 11 15 (for 1 sec. on 5 sec. off

cadence)

Ring/Chime

To Select Option

20

Single 00 to 99 (0 to 99 second(s) Double 30 sec.

Duration

Beep

ring/chime)

Beep

To Verify 21

Door Unlock

To Select Option

30

Single 4 digits (first digit must be

Double 6736

Code

Beep

0,3,4,5,6,7 or 8;

Beep “OPEN”

To Verify

31

remaining digits can be set

from 0 to 9)

Door Unlock

To Select Option

40

Single 00 to 99 (door lock active

Double

4 sec.

Duration

Beep time in sec.)

Beep

To Verify

41

Enable Door

To Select Option

50

Single

1

Enable door code

Double

1

Code

Beep

0 Disable door code

Beep (Enabled)

To Verify 51

Door Ajar

To Select Option

50

Single

2

For callback after strike

Double

2

Mode

Beep

plate release only

Beep

To Verify 51

3

For callback anytime

door is opened

Forced To Select Option

60

Single 010 to 255 (unit disconnects

Double 120 sec.

Disconnect

Beep

in 10 to 255 sec.)

Beep

Time-Out

To Verify

61

Reset Options

To Select Option

70

Single ## (to restore factory default

Double

N/A

to Factory

Beep

conditions)

Beep

Defaults

To Verify

71

NOTE: The Door Ajar Delay (Option Selection) will begin when the call to the door speaker is disconnected.

6-8 Installation - No Dedicated Trunk/Station Port

Operation

– Basic Door Answer Function

Visitor Presses Door Speaker Button

When a visitor presses the door speaker push button, the

AT&T Door Phone Controller will signal the telephone

equipment inside your building to ring, and activate an auxiliary
alert (door-bell/chime) (optional). Any additional presses on the
door speaker push button will be ignored (with the exception
that a confirmation tone will still be sent to the speaker when
the door button is pressed).

Answering a Call From the Door Speaker

When a person inside the building hears the telephone ring
and/or the door bell/chime sound, he can respond by answer-

ing the ringing phone. At this point, the AT&T Door Phone
Controller will establish two-way communication with the door
speaker. To open the door, the person inside the building either
enters the Door Code on the telephone’s keypad or presses

the customer provided door-unlock push button. Either of these
actions will activate the customer provided electric door strike

plate device.

As an alternative response to hearing the telephone or door

bell/chime, the person inside the building can press the door­unlock push button which will stop the ringing and will open the

door. This allows the door to be unlatched without the use of a

phone.

Installation - No Dedicated Trunk/Station Port 6-9

Calling the Door Speaker From Inside the Building

Your PBX must be capable of To initiate a call to the door in the Trunk Saver mode, the

relaying the hook-flash from the

person within the building simply takes the telephone off-hook,

station set to the trunk port.

accesses the trunk connected to the AT&T Door Phone

Controller, and hook-flashes the telephone within the first
5 seconds. At this point, there will be direct two-way
communication from within the building to the door speaker.

To initiate a call to the door in the Port Saver mode, the person
within the building simply takes the telephone off-hook,
accesses the trunk connected to the AT&T Door Phone

Controller, and dials “1” within the first 4 seconds. At this point,
there will be direct two-way communication from within the
building to the door speaker. (Alternatively, the person may dial
a “9” within the first 4 seconds after accessing the trunk in
order to be immediately connected to the C.O. line.)

Telephone Line In Use When a Visitor Presses Door

Speaker Button

Once the doorbell push button
is pressed, you can "Hook­Flash" to the door speaker and

then back to the original call
only once, unless the push
button is pressed again.

If you forget to hook-flash back

to the original call, the AT&T
Door Phone Controller will call

you back.

If a visitor presses the door speaker button while an existing
call is already taking place on the line, the AT&T Door Phone
Controller will generate a “door alert” signal to indicate a visitor
needs attention at the entrance. The person using the line can
hook-flash the phone and be in direct two-way communication

to the door speaker. The other party will be placed on hold. At
this point, normal AT&T Door Phone Controller functions can
take place. When the door phone functions have been
completed, i.e., door has been remotely opened, hook-flashing

phone again (or pressing 9) will return line to original call. This

feature operates much like a call-waiting function.

6-10 Installation - No Dedicated Trunk/Station Port

Telephone Line In Use With Door When a Call Arrives

If there is a call in progress between the door speaker and a
station user and a call (C.O.) comes in, the person inside the
building (not the door speaker) will hear a call waiting tone. The
station user can hook-flash the phone (or dial 9) and
communicate with the incoming caller. When the call is
complete, the station user hangs up the phone. To speak with

the door phone again, the station user must either hook-flash
the phone (within 4 seconds of picking up the receiver) if

installed for Trunk Saver Mode or dial “1” if installed for Port
Saver Mode.

Placing a Call Through the C.O. From Inside Building

To initiate a call through the C.O. in the Trunk Saver Mode, the
person within the building simply takes the telephone off-hook,
accesses the trunk connected to the AT&T Door Phone
controller, and then dials the desired phone number. This is
normal procedure for placing an outside call.

To initiate a call through the C.O. in the Port Saver Mode, the
person within the building simply takes the telephone off-hook,

then accesses the trunk connected to the AT&T Door Phone

Controller. At this point the caller will hear a dial tone from the

Door Phone Controller. Dialing a “9”, or waiting 4 seconds, will
switch the caller to the C.O. and the regular phone number is
dialed.

Installation - No Dedicated Trunk/Station Port 6-11

Troubleshooting and Maintenance

7

Troubleshooting and Maintenance 7-1

Troubleshooting Procedures

Table 7-1. Troubleshooting Procedures

Trouble

Possible Cause

Possible Solution

LED “off” constantly

Check power connection. If power connection is good,

then return for repair.

LED “on” constantly

Brown-out condition or software

Unplug and plug back in.

frozen.

LED blinking more than four

Internal software error; may still

Unplug and plug back in; if

times a second work.

problem continues return for

repair.

Talkback volume, but no

Volume control turned down or

Verify setting of controls and

speaker volume

DIP switches incorrectly set for

DIP switches.

mode of operation.

Speaker volume, but no

Volume control turned down.

Verify setting.

talkback volume

No page or talkback volume

Shorted or open speaker lead

Remove short or open.

connection.

Unit disconnects after a

Check forced disconnect

Change time-out (option

certain time time-out selection.

selection).

Dial tone heard from the

DIP switches incorrect for mode

Verify Mode of operation.

speaker

of operation. Telephone system

Program telephone system for
returns dial tone after Door no dial tone on this extension.
Phone goes on-hook.

Cannot hear your own voice

DIP switch incorrect.

Correct.

in telephone ear piece

Plugged wires into wrong jack.

Correct.

Station mode seizes line then

Forced disconnect timeout set

Enter Option Selection Mode

disconnects before AT&T

to low.

(##3), and enter new Forced

Door Phone Controller is

Disconnect Timeout Duration.

accessed

Station line plugged into J2. Correct, move to J1.

Cannot access AT&T Door

J1 and J2 swapped.

Check connections and correct

Phone Controller in trunk if needed.
saver mode

Getting door-ajar callback

Bad door ajar switch. Fix or adjust.

when door is actually closed

Open door ajar switch wiring.

Fix.

7-2 Troubleshooting and Maintenance

Table 7-1. Troubleshooting Procedures (Continued)

Trouble

Possible Cause

Possible Solution

Getting door-ajar callback Missing jumper on terminal

Jumper pins 8 & 9 of terminal

when door ajar switch is not

block.

block.

used

Receive C.O. call waiting

Door Phone Controller optioned Verify DIP switch positions.

tone when accessing the

for dedicated mode instead of

Door Phone Controller but

Trunk Saver or Port Saver Mode.

cannot dial and/or hook-flash
to connect to call

PBX does not relay the hook-

Use in dedicated mode.

flash.

Cannot open door remotely

Door Unlock option disabled

If error tone, verify Door Open

using Touch Tone door

or

Code and Door Unlock enable

unlatch function

Wrong Door Code.

option.

Check all wiring from AT&T

Disconnect wires from the

Door Phone Controller to electric

terminal block “Door Unlatch

strike plate device (see

Contacts.” Use volt/ohm meter

manufacturer’s instructions).

to check continuity between

NO and C terminals while
activating Touch-Tone door
unlatch function. If continuity

test fails, return AT&T Door

Phone Controller for repair.

Cannot open door remotely

Check all wiring from AT&T

Disconnect wires from the

using remote door open

Door Phone Controller to electric

terminal block “Remote Open

button

strike plate device, also check

Button” and “Door Unlatch

operation of electric strike plate

Contacts.” Use volt/ohm meter

device (see manufacturer’s

to check continuity between

instructions).

both wires from the remote
open button while activating

the button. If continuity test of

button is good, button is OK.
Now reconnect button wires to
“Remote Button Contacts,”
and check continuity of “Door
Unlatch Contacts” (between
NO and C) while activating
remote door open button. If

continuity test fails, return

AT&T Door Phone Controller

for repair.

Troubleshooting and Maintenance 7-3

Table 7-1. Troubleshooting Procedures (Continued)

Trouble Possible Cause

Possible Solution

Cannot open door remotely

Improper wiring to existing door

Verify all connections when

using either Remote Door strike device. May be caused

connecting the door strike

Open Button or the Door

by improper connection and use

contacts on the AT&T Door

Code

of NO (Normally-Open), NC

Phone Controller to existing

(Normally Closed), and C

door open buttons. Make sure

(Common) door latch relay

of the following:

contacts, especially when

interfacing these contacts to

1. The NO and C contacts

existing door configurations.

are connected in parallel to a
normally-open button.

2. The NC and C contacts
are connected in series to a
normally-open button.

Selected options are not

Incorrect or inappropriate values

Use Verify mode to confirm

operating as expected

were entered.

selected options without
changing the values.

Carefully consider the
“consequences” of options

chosen.

Maintenance

Periodic maintenance is not required.

Units requiring repair are returned to AT&T for service.

7-4 Troubleshooting and Maintenance

Appendix A—DIP Switch Settings

Setting

the

DIP

Switch

Positions

The AT&T Door Phone Controller’s basic operating modes are
selected on the 8-position DIP switch at the front of the unit
(see Figure 1-1). Positions 1 through 5 are used to set up the
way the AT&T Door Phone Controller will interface with your

NOTE: All switches are OFF telephone equipment. Position 8 is used to access Option
when shipped from the

Selection Mode. Positions 6 & 7 are not used. The definition of

factory.

each switch position is given below:

Switch 1

Selects between Trunk Access and Station Access. Trunk
Access = OFF; Station Access = ON.

Switch 2

Selects between Dedicated Trunk or Shared Trunk. This switch
only has meaning when Trunk Access is selected with
Switch 1. Shared Trunk = OFF; Dedicated Trunk = ON.

Switch 3

Selects between Trunk Saver or Port Saver. This switch only

has meaning when Trunk Access is selected with Switch 1 and

Shared Trunk is selected with Switch 2. Trunk Saver= OFF;

Port Saver = ON.

Switch 4

Selects between Loop Start and Ground Start. This switch only
has meaning when Trunk Access is selected with Switch 1.

Loop Start = OFF; Ground Start = ON.

Switch 5

Selects between Auxiliary Alert or Ringdown. This switch only

has meaning when Station Access is selected with Switch 1.

Auxiliary Alert = OFF; Ringdown = ON.

DIP Switch Settings A-1

Switch 6

Not used.

Switch 7

Not used.

Switch 8

Selects between Option Selection Mode and Normal Operation.
This switch acts as a Option Selection security switch. If this
switch is ON, any user can activate Option Selection Mode by
keying in “##3” on a touch-tone telephone set which connects
directly to the AT&T Door Phone Controller. When this switch is
OFF, Option Selection Mode cannot be activated. Normal
Mode = OFF; Option Selection Mode = ON.

A-2 DIP Switch Settings

Appendix B

—Option Selection Mode Definitions

The information below provides detailed information regarding
each of the settable options for the AT&T Door Phone
Controller.

Ring/Chime Cadence

Provides an alternate ring (on/off) cycle from how it would ring

for a normal call. For instance, you can configure the telephone

to ring for 2 seconds and then be silent for 4 seconds, or ring

for 1 second and then be silent for 5 seconds.

Ring/Chime Duration

This option provides a maximum duration of telephone ringing
cycles (in seconds) before the AT&T Door Phone Controller will
disconnect.

This option determines what your door unlock combination will

Door Unlock Code

be. The default is set for 6736, but for security reasons it
recommended you change this to your own four-number
combination.

is

Door Ajar Mode

Forced Disconnect
Timeout

Door Unlock Duration

This option determines the amount of time the door unlock

function will be activated. The default is 4 seconds.

Enable Door Code

This option can be set so the door access code is disabled.

Once it is disabled, entering the door unlock code will not
provide a door unlock function.

This option provides the choice of either having the Door Ajar
call back any time the door is opened, or only after it has been
opened via the strike plate release. Note: When the Door Ajar

switch senses that the door has been opened and closed
again, the door open relay will cease being energized.

This option sets the maximum time in which two-way
communications can take place between the door speaker and
the telephone. Setting this option to less than 30 seconds is not
advised.

Option Selection Mode Definitions B-1

Phone Number
Storage Memory 1

Reset Option

This option is useful when current option selections are

Selections to Factory

unknown. Note that this function will reset the Door Unlock

Defaults

Code to the default value, but it will not reset “Phone Number
Storage Memory 1” or “Phone Number Storage Memory 2”

(see below). Defaults to dialing phone number #1.

This option is used in what is called “Ringdown Mode” to
auto-dial a particular extension or outside-line phone number.
The AT&T Door Phone Controller has two memory locations for

holding user stored telephone numbers. Phone numbers can
be for telephones within the same building or off-premises.
These memory locations are used exclusively in Ringdown
Mode. Only one memory location is active at a time. To select

the active location for the phone number, a telephone

connection to the AT&T Door Phone Controller must be made
(by calling the extension number of the Door Phone). Once
connected dial in “##1”, this selects Memory Location 1; if you

Phone Number

Storage Memory 2

Delay Before Door
Ajar Call Back

were to dial in “##2”, you

See above explanation.

would select Memory Location 2.

This option determines the length of time allowed for the door
to shut after it has been opened by the strike plate release. If
the door is still ajar at the end of this period, the controller will
call back and an alarm tone will be heard in the receiver when
the phone is answered.

B-2 Option Selection Mode Definitions

Appendix C—Specifications

Electrical

Standards

The Door Answer Controller meets:

■ U.L. listing requirements

■ F.C.C. part 15, class B requirements

■ F.C.C. part 68 requirements

Electrostatic Discharge

Your AT&T Door Phone Controller complies with the ESD
requirements in BELL Pub 48002.

All user accessible connectors and controls have electrostatic
discharge protection.

Power Supply

The AT&T Door Phone Controller is powered by an UL listed
wall mount transformer with a strain relieved cord.

It functions over an input power range of 96 VAC to 129 VAC.

Your AT&T Door Phone Controller has a green LED power

indicator.

■

■

■

A flashing state of 2.5 per second indicates normal power to
the unit and normal microprocessor operation.

A constant ON state indicates a brown-out condition or
microprocessor failure.

A constant OFF state indicates there is no power to the unit.

Page and Talk-Back

Paging output power is 2 watts (continuous) @ 3.35 Vrms (sine

Amplifier

wave). Talk-back input sensitivity:
speaker leads, tip and ring output

Auxiliary Alert Relay Contact Closures rated at 1

Door Latch Contacts Relay Contact Closures rated at 2

with 600 microVrms at the
level will be -17 dBm.

amp.

amps.

Specifications C-1

Ring Generator

Your AT&T Door Phone Controller provides a ring generator
signal which can ring devices that respond to either 20 Hz or
60 Hz frequencies. The ringer will automatically adapt to a 50
Hz line by ringing at 25 Hz.

A Ringer Equivalence (REN) of 2 is supported by the AT&T

Door Phone Controller.

C.O. Line Jack

Mechanical

Input has a REN of 0.5, Type B.

Front Panel

Back Panel

Dimensions and Weight

The AT&T Door Phone Controller’s control unit PCB is

mounted in a molded plastic enclosure with a metal back panel.
The front panel is protected by a flip down cover. You have
access to controls and connections on the front panel and back

panel.

The front panel controls and indicators consist of:

■ one page volume control

■ one talkback volume control

■ one 8 position DIP switch

■ one power indicator (green LED)

The back panel connections consist of:

■ one strain relieved cord approximately 6 feet in length

attached to a wall mount transformer

■ one RJ11 jack for the telephone/PBX interface

■ one RJ11 jack for Central Office interface

■ one connector mounted terminal strip.

Length: 10.5'', Width: 9.5'', Height: 2.5'', Weight: 5.5 Lbs.

C-2 Specifications

Appendix D—Using the Door Phone Controller With
An Answering Machine

Installation Information

This Appendix provides two methods for configuring an
answering machine to the AT&T Door Phone Controller. The

first method diagrams how to connect the AT&T Door Phone

Controller with an answering machine so that only regular

telephone calls are answered by the answering machine (see

Figure A-1). The second method diagramed will allow the

answering machine to answer both regular telephone calls and

calls from the Door Speaker (see Figure A-2).

When configuring the AT&T

Door Phone Controller to

CAUTION: When using your answering machine to

answer both the door and

answer both door and telephone calls, make sure to set

telephone calls, be sure to

your answering machine to allow for a limited length in-

change your outgoing message

coming message. Do not use an answering machine that

accordingly.

cannot limit the incoming message length.

Using With an Answering Machine D-1

AT&T DOOR PHONE CONTROLLER

TYPICAL

ANSWERING MACHINE

(SHARED TRUNK MODE)

TO J2

TO J1

TO TEL. TO TEL.

CONNECTOR

CONNECTOR

LINE JACK

SET JACK

TO PHONE C.O.

TELEPHONE OR

TELEPHONE SYSTEM TRUNK

Figure D-1. Installation Method Used For Answering Only Telephone Calls

AT&T DOOR PHONE CONTROLLER

TYPICAL

TO J2

CONNECTOR

(SHARED TRUNK MODE)

TO J1

CONNECTOR

ANSWERING MACHINE

TO TEL. TO TEL.

LINE JACK SET JACK

TO

PHONE C.O.

CAUTION: SET

ANSWERING MACHINE

FOR A LIMITED LENGTH
INCOMMING MESSAGE
ONLY!

TELEPHONE OR

TELEPHONE SYSTEM

TRUNK

Figure D-2 Installation Method Used For Answering Both Door and Telephone Calls

.

D-2 Using With an Answering Machine

Appendix E—Auxiliary Alert Option

Installation Instructions

APPLICATION
INFORMATION

HOW IT WORKS

INSTALLATION

The following instructions utilize the WP91683 L1 Power
Supply for the AT&T Door Phone Controller external alert

feature.

The WP91683 L1 Power Supply is the interface

48VDC to operate external alert features for the

for providing
AT&T Door

Phone Controller such as bells, horns, lamps, strobes, and

chimes.
The WP91683 L1 Power Supply is a plug-in power supply

capable of providing 48VDC at up to 200 milliamps. The power
supply operates from a 115/120 volt AC standard single or
duplex receptacle.

The AT&T Door Phone, in conjunction with a telephone system,

provides a means to alert a customer that a doorbell button has
been pressed. In response the customer can answer and talk

to the door from a telephone within the customers premises.
The alerting device function can be provided by an external

alert device powered by the WP91683 L1 Power Supply. The
AT&T Door Phone’s AUX. ALERT contact closure is used by
the WP91683 L1 Power Supply to provide 48 Volts DC to
activate the external alert device.

These instructions apply to the use of a four-conductor modular
cord

1.

2.

only.

Locate the WP91683 L1 Power Supply as close as pos­sible to the AT&T Door Phone Controller (the nearest
wall receptacle, DO NOT PLUG IN YET).

Run a standard 2-pair wire DIW or equivalent between

the AT&T Door Phone Controller and a 103A connect-

ing block. Connect jack on the 103A block to the jack

Auxiliary Alert Device Connections E-1

A standard 4-conductor modular 3.

cord set can be used for limited
distances (25 feet and under)
for connections between the

WP91683 L1 Power Supply

power jack and alerter (signal)

only.

4.

5.

6.

7.

marked “Control” on the WP91683 L1 Power Supply
with DW4A modular cords or equivalent (see Figure
E-1).

A) Connect one end of the wire to the AT&T Door Phone

Controller as follows:

Connect the black and yellow leads to the Aux. Alert
terminals of the Door Phone Controller.

B) Connect the other end of the wire to the 103A

connecting block. Connect the leads as follows:
On the 110-type connector, connect Terminal 2 to the

black wire, and connect Terminal 6 to the yellow wire

(see Figure E-1).

Place alerter where desired. Run 2-pair DIW from
alerter (signal) to power supply. Connect 4-conductor
modular plugs to both ends of 2-pair wire DIW as fol­lows:

Position 1 - Black Wire
Position 2 - Red Wire
Position 3 - Green Wire
Position 4 - Yellow Wire

Place one modular plug into modular jack on alerter
(SIGNAL).

Place the second modular plug into the WP91683 L1

Power Supply jack marked “POWER”.

Plug WP91683 L1 Power Supply into wall receptacle.
Test to see that external alert is operating by pressing

the button on the AT&T Door Phone Speaker.

E-2 Auxiliary Alert Device Connections

AT&T DOOR

PHONE CONTROLLER

BACK PANEL

2 PAIR DIW
OR EQUIVALENT
22-26 AWG.

AT&T AUXILIARY

ALERT DEVICE

48VDC

EXTERNAL

ALERT

SIGNAL

BLACK

YELLOW

DW4A CORD

(OR EQUIVALENT)

103A

CONECTOR BLOCK

CONNECTOR

JACK

1

1

2

2

3

3

4

4

5

5

6 6
7

7

8

8

DW4A CORD

POWER CONTROL

(OR EQUIVALENT)

PEC 60314

COMCODE 405712928

Figure E-1. Connections For Auxiliary Alert Device

Auxiliary Alert Device Connections E-3

Appendix F

—FCC Regulations and Warranty

FCC Regulations Pertaining to this Equipment

FCC (PART 15)

The AT&T Door Phone Controller generates and uses radio frequency

Radio Frequency

energy and if not installed and used in strict accordance with the

Interference

manufacturer’s instructions, may cause interference to radio and

television reception.

NOTE: The AT&T Door Phone Controller has been tested and
found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a

residential installation. The AT&T Door Phone Controller

generates, uses and can radiate radio frequency energy and, if

not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If the AT&T Door Phone Controller does
cause interference to radio or television reception, which can be
determined by turning the AT&T Door Phone Controller unit off
and on, the user is encouraged to try to correct the interference
by one or more of the following measures:

●

Reorient or relocate the radio or TV receiving antenna.

●

Relocate the unit to increase the separation with respect to the
radio or TV receiver or vice-versa.

●

Plug the unit into a different outlet so that it and the radio or TV
receiver are on different branch circuits.

●

If necessary, the user should consult the dealer or an experienced
radio/television technician for additional suggestions. The user
may find the following booklet, “How To Identify and Resolve
Radio-TV Interference Problems,” helpful. This booklet was

prepared by the Federal Government Printing Office, Washington,

DC 20402. Stock order No. 004-000-00345-4.

FCC (PART 68)

This equipment is registered with the Federal Communications

Commission (FCC) in accordance with Part 68 of its Rules. The FCC

requires that the manufacturer provide you with the following

information:

FCC Regulations and Warranty F-1

1. Connection and Use with Nationwide Telephone Network

The FCC requires that you connect your telephone equipment to the
nationwide telephone network through a modular telephone outlet or

jack. The modular telephone outlet or jack to which the equipment

must be connected is a USOC RJ11C.

If this equipment causes harm to the telephone network, the telephone
company will notify you in advance that temporary discontinuance of
service may be required. If advance notice isn’t practical, the
telephone company will notify the customer as soon as possible. Also,
you will be advised of your right to file a complaint with the FCC if you

believe it is necessary.

The telephone company may make changes in its facilities, equipment,

operations, or procedures that could affect the operation of the
equipment. If this happens, the telephone company will provide
advance notice in order for you to make the necessary modifications in
order to maintain uninterrupted service.

If trouble is experienced with this equipment, please contact your

dealer for repair and(or) warranty information. If the trouble is causing
harm to the telephone network, the telephone company may request

you remove the equipment from the network until the problem is

resolved.

Registered equipment may not be used on telephone company Coin

Telephone Lines. Equipment may be used with Party Lines in areas
where state tariffs permit such connections and when equipment is
adaptable for such use.

2. Information You May Need to Supply the Telephone Company

Upon request of your local telephone company, you are required to
provide them with the following information:

A. The lines to which you will connect the telephone equipment.

B. The FCC registration number and Ringer Equivalence Number

(REN). Both numbers are listed on the equipment label. The REN is

useful to determine how many devices you may connect to your
telephone line and still have them ring when your telephone line is

called. In most, but not all areas, the sum of all RENs per line should
be 5 or less. You may want to contact your local telephone company.
The local telephone company must also be notified upon final
disconnection of the equipment from the local telephone company

lines.

F-2 FCC Regulations and Warranty

Warranty Information

Limited Warranty and Limitation of Liability

AT&T warrants to you that the product will be free from defects
in material and workmanship when title passes to you. If you
notify AT&T that the product has failed to operate as warranted
within one year of the date title passes to you, AT&T will, at its
option, repair or replace the component or components of the
product that failed to operate as warranted. Any repair or
replacement components may be new or refurbished and will
be provided on an exchange basis. If AT&T determines that the
product cannot be replaced, AT&T will refund the purchase
price to you.

If you purchased the product directly from AT&T, AT&T will
perform warranty repair on your premises in accordance with

the terms and conditions of AT&T’s “Business Day” or

“Around-the-Clock” warranty plans. The details of AT&T’s

warranty plans may be obtained from AT&T. If you purchased

the product from an authorized dealer, you will be covered by

AT&T’s authorized dealer warranty plan during the warranty

period. Contact your authorized dealer for details of AT&T’s

authorized dealer warranty plan. AT&T’s obligation to repair,

replace or refund as set forth above is your exclusive
remedy.

The limited warranties provided above do not cover damages,
defects, malfunctions or product failures caused by:

■

■

■

■

Failure to follow AT&T’s installation, operation or
maintenance instructions;

Unauthorized modification or alteration of the product or its

components;

Product abuse, misuse or the negligent
under the reasonable control of AT&T;

Actions of third parties and acts of God
surges (e.g., lightning).

acts of persons not

other than power

FCC Regulations and Warranty F-3

This limited warranty applies only to the product purchased

directly from AT&T or purchased directly from an authorized

AT&T dealer. This limited warranty does not apply to products

purchased or operated outside the United States.
You may be required to provide AT&T with proof of purchase

before AT&T will perform any warranty repair or provide any

warranty replacements.

EXCEPT AS SPECIFICALLY SET FORTH ABOVE, AT&T, ITS
AFFILIATES, SUPPLIERS AND DEALERS MAKE NO
WARRANTIES, EXPRESS OR IMPLIED, AND SPECIFICALLY

DISCLAIM ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.

EXCEPT FOR PERSONAL INJURY, THE LIABILITY OF AT&T,

ITS AFFILIATES, SUPPLIERS AND DEALERS FOR ANY
CLAIM, LOSS, DAMAGE OR EXPENSE FROM ANY CAUSE
WHATSOEVER, REGARDLESS OF THE FORM OF THE
ACTION, WHETHER IN CONTRACT, TORT OR OTHERWISE,

SHALL NOT EXCEED THE LESSER OF DIRECT DAMAGES

PROVEN OR THE REPAIR OR REPLACEMENT COST OF
THE SYSTEM OR THE SYSTEM’S PURCHASE PRICE. IN

NO EVENT SHALL AT&T, ITS AFFILIATES, SUPPLIERS AND

DEALERS BE LIABLE FOR INCIDENTAL, RELIANCE,
CONSEQUENTIAL OR ANY OTHER INDIRECT LOSS OR

DAMAGE (INCLUDING LOST PROFITS OR REVENUES
SUSTAINED OR INCURRED IN CONNECTION WITH THE
SYSTEM). THIS LIMITATION OF LIABILITY SHALL SURVIVE

FAILURE OF THE EXCLUSIVE REMEDY SET FORTH IN THE

LIMITED WARRANTY ABOVE.

F-4 FCC Regulations and Warranty

AT&T

Door Phone Controller

— Option Selection

To Select Options: (1) Set DIP switch location 8 to the ON position. (2) Dial door speaker phone number or
extension. (3) Dial ##3. (4) Program any or all of the following functions, in any order:

Mode Option/

Listen

Listen

Options

Verify

Press

Press

For

For

Default

Delay Before

To Select Option

00

Single 000 to 255 for 0 to 255 Double 30 sec.

Door Ajar

Beep seconds of delay after strike

Beep

Call-back

To Verify

01

plate release stops until
Door Phone Controller calls
back to indicate that door is
ajar

Ring/Chime To Select Option

10

Single 24 (for 2 sec. on 4 sec. off

Double

2 sec./

Cadence

Beep

cadence)

or

Beep

4 sec.

To Verify

11 15 (for 1 sec. on 5 sec. off

cadence)

Ring/Chime To Select Option 20

Single 00 to 99 (0 to 99 second(s)

Double 30 sec.

Duration

Beep

ring/chime)

Beep

To Verify 21

Door Unlock

To Select Option 30 Single 4 digits (first digit must be

Double

6736

Code

Beep 0,3,4,5,6,7 or 8;

Beep

“OPEN”

To Verify 31

remaining digits can be set

from 0 to 9)

Door Unlock

To Select Option 40

Single 00 to 99 (door lock active

Double

4 sec.

Duration

Beep

time in sec.)

Beep

To Verify

41

Enable Door To Select Option 50

Single

1

Enable door code Double

1

Code

Beep

0 Disable door code

Beep

(Enabled)

To Verify 51

Door Ajar

To Select Option

50

Single

2

For callback after strike

Double

2

Mode

Beep

plate release only Beep

To Verify

51

3

For callback anytime

door is opened

Forced To Select Option 60

Single 010 to 255 (unit disconnects Double 120 sec.

Disconnect

Beep in 10 to 255 sec.) Beep

Time-Out

To Verify

61

Reset Options To Select Option

70

Single ## (to restore factory default Double N/A

to Factory

Beep conditions)

Beep

Defaults

To Verify

71

Phone

To Select Option

80

Single 0 to 20 numerical digits and Double

#

Number

Beep ❊ ( ❊ = 2 second pause) #

Beep

Storage

To Verify 81

terminates entry

Memory 1

Phone

To Select Option 90 Single 0 to 20 numerical digits and Double

#

Number

Beep ❊ ( ❊ = 2 second pause) #

Beep

Storage

To Verify 91 terminates entry

Memory 2

After Selecting Options: (1) Press ##3. (2) Hang up after hearing a double beep confirmation. (3) Set DIP

location 8 back to the OFF position, to prevent unauthorized re-programming. (See other side for DIP Switch Settings.)

AT&T

Door Phone Controller

DIP Switch Settings

NOTE: All switches are OFF

The Door Phone Controller’s operating modes are selected on the

when shipped from the factory.

8-position DIP switch at the front of the unit. Positions 1 through 5 are

used to set up the way the Door Phone Controller will interface with
your telephone equipment. Position 8 is used to access Option Selec­tion Mode. Positions 6 & 7 are not used. Definition are given below:

Switch 1

Selects between Trunk Access and Station Access.
Trunk Access

= OFF, Station Access = ON.

CAUTION: Damage to the PBX Station Card may result if

switch position #1 is incorrectly set. Double check that switch
position

Switch 2

Switch 3

Switch 4

Switch 5

Switch 6
Switch 7
Switch 8

#1 is set to ON for Station Port Access.

Selects between Dedicated Trunk or Shared Trunk.
This switch only has meaning when Trunk Access
is selected with Switch 1. Shared Trunk = OFF,
Dedicated Trunk = ON.

Selects between Trunk Savor or Port Saver. This
switch only has meaning when Trunk Access is
selected with Switch 1 and Shared Trunk is
selected with Switch 2. Trunk Saver = OFF, Port
Saver = ON.

Selects between Loop Start and Ground Start. This
switch only has meaning when Trunk Access is
selected with Switch 1. Loop Start = OFF, Ground
Start = ON.

Selects between Auxiliary Alert or Ringdown. This
switch only has meaning when Station Access is
selected with Switch 1. Auxiliary Alert = OFF,
Ringdown = ON.

Not used.
Not used.
Selects between Option Selection Mode and Normal

Operation. This switch acts as a Option Selection
security switch. If this switch is ON, any user can
activate Option Selection Mode by keying in “##3”
on a touch-tone telephone set which connects
directly to the Door Phone Controller. When this
switch is OFF, Option Selection Mode cannot be
activated. Normal Mode = OFF, Option Selection
Mode = ON.

(See other side for DTMF Option Selection.)

© 1992 AT&T

CIC# 999-500-315

All rights reserved. Printed in U.S.A.

0II722050-055

Issue 3, November 1992

Graphics © AT&T 1988