Valcom V-5324001 INSTALLATION INSTRUCTIONS

PagePac

PagePac Door Phone Controller V-5324001

ISSUE 1

Installation and Operation Manual

947177

Contents

1 Introduction 1-1

■ Using This Manual 1-2

■ The PagePac

■ Features 1-3

■ Terms You Should Know 1-5

2 Installation Procedures 2-1

■ Important Safety Instructions 2-2

■ General I nformation 2-4

■ Introduction 2-5

■ Door Phone Controller Back Panel Connections 2-5

■ Prior To Installation 2-7

■ PagePac Door Phone Controller Location 2-8

■ Installation 2-10

■ Connecting Door Speaker, Door Button,

and Door Ajar Switch to the PagePac Door Phone Controller 2-12

■ Connecting Power 2-17

■ Operation and Controls Information 2-18

■ Connecting the Door Phone Controller

to Your Telephone Equipment 2-20

Door Phone Controller 1-3

3 Installation for Home/Residential

(Trunk Saver Mode - Loop Start) 3-1

■ Overview 3-2

■ DIP Switch Selections 3-2

■ Installation 3-3

■ Option Selection 3-4

■ Operation – Basic Door Answer Function 3-6

4 Installation for Telephone System With

Available Dedicated Trunk Port 4-1

■ Overview 4-2

■ DIP Switch Selections 4-2

■ Installation 4-3

■ Option Selection 4-6

■ Operation – Basic Door Answer Function 4-7

5 Installation for PBX Equipment

With Available Station Port 5-1

■ Overview 5-2

■ DIP Switch Selections 5-2

■ Installation 5-3

■ Option Selection 5-5

■ Operation 5-7

6 Installation for Telephone System Without Available

Dedicated Trunk/Statio n Port 6-1

■ Overview 6-3

■ DIP Switch Selections 6-3

■ Installation 6-4

■ Option Selection 6-6

■ Port Saver or Trunk Saver Mode Installation 6-6

■ Operation – Basic Door Answer Function 6-9

7 Troubleshooting and Technical Assistance 7-1

■ Troubleshooting Proce dures 7-2

■ Technical Assistance 7-4

iii

A Appendix A—DIP Switch Settings A-1

B Appendix B—Option Selection Mode Definitions B-1

C Appendix C—Specifications C-1

D Appendix D—Using the PagePac® Door Phone Controller

With An Answering Machine D-1

E Appendix E—Auxiliary Alert Option E-1

F Appendix F—Secondary Circuit Protection F-1

G Appendix G—FCC Regulations, CSA Information G-1

Introduction

Contents

Using This Manual 1-2 The PagePac® Door Phone Controller 1-3 Features 1-3 Terms You Should Know 1-5

Introduction 1-1

Using This Manual

This manual will help you install, progr am and operate the PageP ac® 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 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 Door Phone Controller is and what are its features. Also included is a Glossary 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 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 Door Phone Controller.

1-2 Introduction

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 programmin g, switch setting and operating information will also be included.

Section 7 provides troubleshooting tips for when installatio n is compl e te and the Door Phone Controller is not operating correctly.

Quick Reference Chart at the end of this manual provides all the necessary option selection information along with complete DIP switch settings and their definitions.

The PagePac® Door Phone Controller

The Door Phone Controller provides multi-functional control for communications to a dedicated door-speaker unit and a remote doorunlocking device. The Door Phone Controller (see Figure1-1) 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 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 SWITCHES

DIP SWITCH

LED

Figure 1-1. Front View of the PagePac® Door Phone Controller and

Control Panel

1-4 Introduction

Terms You Should Know

Auxiliary Alert—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 b y whi ch a busi ness teleph one s ystem (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 Gr ound 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 Door Phone Controller to dial the number of a predetermined telephone st ation number (PBX or EKTS must be ins talled). 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

Contents

Important Safety Instructions 2-2 General Information 2-4 Introduction 2-5 Door Phone Controller Back Panel Connections 2-5 Prior To Installation 2-7 Door Phone Controller Location 2-8 Installation 2-10

■ Mounting Instructions 2-10

■ Wall Mount Instructions 2-10

Connecting Door Speaker, Door Button, and Door Ajar Switch to the Door Phone Controller 2-12

■ Remote Door Open Switch (Optional) 2-12

■ Electric Door Strike Plate Device (Optional) 2-14

■ Auxiliary Alert Device (Optional) 2-16

Connecting Power 2-17 Operation and Controls Information 2-18

■ Door Ajar Function 2-18

■ Speaker Volume Contro l 2-18

■ Talk Back Volume Control 2-18

■ LED 2-19

Connecting the Door Phone Controller to Your Telephone Equipment 2-20

2-1 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, in cluding the following:

1. Read and understand all instructions.

2. Follow all warnings and instructions marked on the product.

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

4. 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.

5. Do not place this product on an unstable cart, stand, or table. The product may fall, causing serious damage to the product.

6. Slots and openings in the cabinet and the back or bottom are provid ed 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.

7. 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, consult your dealer or local power company.

Install at i on P rocedures 2-2

8. WARNING: RISK OF ELECTRICAL SHOCK –

EQUIPMENT MUST BE PROPERLY GROUNDED. Your PagePac

equipment requires a pr operly gr ounded three-p rong power receptacle for safe operation. Have the receptacle checked by a qualified electrician before connecting this equipment. Do not cu t or rem ove the t hird (grou nd) p rong 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 pr oduct throug h 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 o f 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.

2-3 Installation Procedures

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.

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.

14. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning.

15. 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 unless the telephone line has been disconnected at the network interface.

4. Use caution when installing or modifying telephone lines.

Installation Procedures 2-4

Introduction

Note: Contact a licensed electricia n 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.

This section provides instructions for installing your PagePac® Door Phone Controller. Provided are installation instructions for an 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 Door Phone Controller. (Refer to the respective installation manu als 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 Door Phone Controller to the telephone equipment in your home or business (also see Compatibility Chart on page iii).

Inside the Door Phone Controller shipping carton you will find:

■ The Door Phone Controller unit.

■ Mounting template (along the edge of the Quick Reference Chart).

■ Power cord and attached transformer.

■ T w o moun t ing screws .

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

■ Terminal strip connector.

■ Instruction Manual (t his manual).

Door Phone Controller Back Panel Connections

Note: The 14-contact terminal strip can be unplugged from the back panel.

*Note: The Canadian equivalent of the RJ 11C connector is CA11A. Where applicable, CA11A is to be understood for references to RJ11C in this manual.

2-5 Installation Procedures

The Door Phone Controller back panel (see Figure 2-1) has two RJ11* modular connectors and one 14-contact “hard 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.

■ 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 EK TS) (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 PagePac power receptacle for safe operation. Have the receptacle checked by a qualified electrician before connecting this equipment. Do not cut or remove the third (gro und) prong from t he power t ransformer. 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.

equipment requires a properly grounded three-prong

Installation Procedures 2-6

12 VAC 60 Hz 1 AMP

SERIAL NO.

CENTRAL

OFFICE

HOST

SYSTEM

PAGEPAC DOOR PHONE CONTROLLER BACK PANEL

J3 TERMINAL BLOCK CONNECTION

1 2 3 4 5 6 7 9 10 11 12 13 148

REF. NO. 22050-055

RJ11

CONNECTORS

Figure 2-1. Door Phone Controller Back Panel Connections

Prior To Installation

Consider the following items before installation:

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

4. Use caution when installing or modifying telephone lines.

14-PO SIT IO N TERMINAL STRIP (REMOVABLE)

2-7 Installation Procedures

PagePac® 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 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 Door Phone Controller is designed to control the functions of the components mentioned above, and how you answer these questions will determine how the Door Phone Controller will be installed, optioned, and operated.

When selecting options for your Door Phone Contro ller , e.g., to change the door-unlock security code, the Door Phone Controller unit must be DIP switch selected to Option Selection mode. For this reason y ou may want to install the 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.)

Install at i on P rocedures 2-8

DOOR PHONE CONTROLLER (Secure Location)

22-24 GAUGE WIRE

AUX. ALERT DEVI CE

TELEPHONE EXTE NSION

22-24 GAUGE WIRE

DOOR AJAR SWITCH

MODULAR PHONE CABLE

TELEPHONE EQUIP.

22-24 GAUGE WIRE

EXISTING PHONE LINES

SHIELDED TWISTED PAIR SPEAKER WIRES

ATTENDENT POSITION

DOOR SPEAKER W/ PUSH BUTTO N

ELECTRIC DOOR STRIKE PLATE DEVICE

Figure 2-2. Typical PagePac® Door Phone Controller Installation

ENTRANCE

2-9 Installation Procedures

Installation

Mounting Instructions

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

Wall Mount Instructions

The 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.

Note: When moving Door Phone Con tr oller 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.

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 Door Phone Controller bottom panel keyholes over screw heads.

3. Mount th e Door Phone Controller ove r the protruding screw heads and seat unit firmly to the wall. See Figure 2-3.

WARNING: RISK OF ELECTRICAL SHOCK —

equipment requires a properly grounded three-prong

Install at i on P rocedures 2-10

4. When the 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

8.1''

5/16'' TYPICAL

Figure 2-3. Mounting PagePac® Door Phone Controller to Wall

2-11 Installation Procedures

MOUNTING SCREWS

Connecting Door Speaker, Door Button, and Door Ajar Switch to the Door Phone Controller

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

Note: Polarity of wires is not important.

Note: Total wire length should not ex cee d 1500 feet.

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

2. Run 2 wires (22–24AWG) from th e “Door B ell Bu tton” termi nals (1 0 &

11) to the door bell push button on the installed door speaker/push button assembly (3 and 4).

3. Run 2 wires (22–24AWG) from the optional “Door Ajar Switch” terminals (8 and 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 (22–24A WG) from t he installe d (normally -open contact ) remote door open switch to the “Remote Door Open” terminals (6 and 7) on the Door Phone Controller back panel (polarity of wires is not important).

Install at i on P rocedures 2-12

DOOR PHONE CONTROLLER BACK PANEL

J3 TERMINAL BLOCK CONNECTION

TO HOST SYSTEM

1 2 3 4 5 6 7 9 1011 1213148

1 2 3 4 5 6 7 9 1011 121 3 148

REF. NO. 22050-055

SHIELDED, TWISTED PAIR, 24 AWG.

DOOR SPEAKER WITH PUSH BUTTON

1 2

3 4

APPROX. 1500 FT . MAXI MUM LENGTH

JUMPER THE TWO DOOR AJ AR 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 PagePac® Door Phone Speaker,

Door Button and Door Ajar Devices

2-13 Installation Procedures

DOOR PHONE CONTROLLER BACK PANEL

TO HOST SYSTEM

J3 TERMIN AL BLOCK CONN ECTION

1 2 3 4 5 6 7 9 1011 1213 148

1 2 3 4 5 6 7 9 10 11 1213 148

REF. NO. 22050-055

MOMENTARY PUSH BUTTON NORMALLY OPEN

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

Electric Door Strike Plate Device (Optional)

Note: If your Electric Door Strike Plate has more than a 1 Amp current draw, then an external relay arrangement is required.

An electric door strike plate is used to automatically open a closed or locked door. A low-voltage device (24V or less) is recommended. The Door Phone Controller can provide an open or closed contact when requested to interface to and to operate your electric door strike plate device. Once an electric door strike plate has been installed, it can be controlled by the 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 steps below and refer to Figure 2-6 for wiring the door strike plate device to the Door Phone Controller.

Installation Procedures 2-14

Note: Do not include strike plate wires within the same cable as others wires connecting to the Door Phone Controller.

TO HOST SYSTEM

J3 TERMINAL BLOCK CO NNECTIO N

1 2 3 4 5 6 7 9 10 11 1213 148

1234567 910111213148

REF. NO. 22050-055

1. Have the electric door strike plate device installed as instructed by the manufacturers installation manual. Check electric installation codes and local ordinances for exact wiring requirements in your area.

2. 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 sou rce as instructed by your manufact urer 's ins tal lation manual. If no instructions exist, wire the above relay contacts to the existing do or op en button (s ee #3 below).

DOOR PHONE CONTROLLER BACK PANEL

ELECTRIC DOOR STRIKE PLATE DEVICE WITH POWER SOURCE

ENTRANCE

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

2-15 Installation Procedures

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

Note: One or the other will apply, not both.

■ 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.

Auxiliary Alert Device (Optional)

Note: If the Auxiliary Alert Device has more than a 1 Amp draw, then an external relay arrangement will be required.

Note: See Appendi x E for specific auxiliary alert device installation information.

In most configurations, the Door Phone Controller will cause a telephone to ring when the doorbell button is pushed. An auxiliary 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 Mode). A low-voltage device (24V or less) is recommended. Follow the steps below (refer to Figure 2-7) for wiring auxiliary alert device (door bell/ chime) to the Door Phone Controller:

1. Install the auxiliary alert device (door bell/chime) as instructed by the manufacturer's installation manual.

2. The Normally Open (N.O.) and Common (C.) relay contact, located on the Door Phone Controller back panel (see Figure 2-7), are accessible at the Door Phone Controller terminal block. Wire these to the auxiliary alert device and it's power source as instructed by the manufacturer's installation manual.

Installation Procedures 2-16

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.

12 VAC 60 Hz 1 AM P

SERIAL NO.

CENTRAL

OFFICE

SYSTEM

HOST

J3 TERMINAL BLOCK CONNECTION

1 2 3 4 5 6 7 9 10 1112 13 148

REF. NO. 22050-055

DOOR PHONE CONTROLLER BACK PANEL

DOOR BELL/CHIME (AUXILIARY ALERT DEVICE) WITH POWER SOURCE

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

2-17 Installation Procedures

Operation and Controls Information

Door Ajar Function

Default Condition—After the door has been o pened by the f our 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 Callback 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

Y o u can adjust the broadcast 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 reply volume level from the door speaker to an inside telephone extension by adjusting the “Talk Back Volume Control” (see Figure 1-1).

Install at i on P rocedures 2-18

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