Build a complete digital-directory audio entrance for an Aiphone GT Series multi-tenant system with the Aiphone GTA-DESB 10-Key Audio Entrance Panel Kit.

The GTA-DESB combines hands-free audio communication, a digital tenant directory, direct tenant dialing, keypad access control, and door release in a complete 1×3 modular entrance assembly.

The kit includes the GT-DB audio module, GT-NSB digital directory, GT-10K keypad, all required exterior panels, GF-3F front frame, and GF-3B flush back box, making it a convenient ready-to-assemble solution for apartments, condominiums, offices, and other multi-tenant buildings.

Key Features

• Genuine Aiphone GTA-DESB

• Complete 1×3 modular audio entrance station kit

• Designed for Aiphone GT Series

• Hands-free visitor-to-tenant communication

• Digital tenant directory

• 10-key numeric keypad

• Direct tenant dialing

• Alphabetical tenant searching

• Jump search by letter

• Up to 500 tenant names / numbers

• Up to 500 unique access codes

• Programmable alphanumeric tenant names and room numbers

• Up to 160-character scrolling welcome message

• Adjustable welcome-message scroll speed

• Displays tenant name and dialing number

• Displays system status

• Visual visitor guidance

• Optional audible visitor instructions

• Six-language guidance capability

• PC programming through USB

• Built-in Form C door-release relay

• 24V AC/DC, 4A door-release contact

• 24VDC system power

• Weather-resistant construction

• Vandal-resistant zinc die-cast construction

• GF-3F front frame included

• GF-3B flush back box included

• Optional GT-103HB hooded surface enclosure

Kit Includes

The GTA-DESB includes the following genuine Aiphone components:

Audio Section

• GT-DB – Audio & Door Release Module

• GT-DBP – Exterior Panel for GT-DB

Digital Directory Section

• GT-NSB – Digital Display / Tenant Directory Module

• GT-NSP-L – Exterior Display Panel

Keypad Section

• GT-10K – 10-Key Keypad Module

• GF-10KP – Exterior Keypad Panel

Mounting Components

• GF-3F – 3-Module Front Frame

• GF-3B – 3-Module Flush-Mount Back Box

This creates a complete three-section vertical entrance assembly.

Product Specifications

Manufacturer: Aiphone
Model: GTA-DESB
Series: GT Series
Product Type: Modular Audio Entrance Station Kit
Configuration: 1 × 3 Vertical
Communication: Hands-Free
Video Camera: No
Digital Directory: Yes
Keypad: Yes
Direct Tenant Dialing: Yes
Access-Code Entry: Yes
Tenant Directory Capacity: Up to 500 Names / Numbers
Access-Code Capacity: Up to 500 Codes
Welcome Message: Up to 160 Characters
Power Requirement: 24VDC
Recommended Power Supply: PS-2420UL, Quantity Per System Design
Door Release: Form C Dry Contact
Door Release Rating: 24V AC/DC, 4A
Audio Wiring: 2-Conductor, Solid, Non-Shielded, PE Insulated
Recommended Audio Wire: Aiphone #872002
Mounting: Semi-Flush or Optional Surface Mount
Flush Back Box: GF-3B Included
Front Frame: GF-3F Included
Surface-Mount Box: GT-103HB, Sold Separately
Material: Zinc Die Cast
Height: 12-5/8"
Width: 5-5/16"
Visible Panel Depth: Approximately 5/8"

Hands-Free Audio Communication

The GTA-DESB provides hands-free audio communication between visitors at the building entrance and compatible GT Series tenant stations.

Visitors can:

1. Search for the desired tenant

2. Place a call

3. Speak hands-free with the tenant

4. Wait for the tenant to release the entrance

No handset is required at the entrance station.

Digital Tenant Directory

The included GT-NSB provides a digital directory capable of storing up to:

500 Tenant Names / Numbers

Programmable information can include:

• Resident name

• Company name

• Apartment number

• Suite number

• Alphanumeric room number

• Assigned dialing number

This eliminates the need for hundreds of individual physical tenant call buttons.

Multiple Tenant Search Methods

The GTA-DESB provides several ways for visitors to locate a tenant.

Alphabetical Scrolling

Visitors can move forward or backward through the tenant directory alphabetically.

Jump Search

Visitors can jump through the directory by letter to reach a desired tenant more quickly.

Direct Dialing

When the visitor knows the assigned tenant number, it can be entered directly using the included GT-10K keypad.

This is especially useful in larger apartment and commercial buildings.

GT-10K Numeric Keypad

The included keypad provides:

• Numbers 0–9

•  

  • function key

•  

  function key

It is used for:

• Direct tenant dialing

• Access-code entry

• Applicable programming functions

Because the GT-10K is included in the GTA-DESB kit, no separate keypad module is required.

Keypad Access Control

The GTA-DESB supports up to:

500 Unique Access Codes

Authorized residents, employees, or other approved users can enter a programmed code to activate the entrance door-release relay without calling a tenant.

This allows the GTA-DESB to serve as both:

• Multi-tenant audio intercom

• Basic keypad access-control entrance

Access-Code Length

The compatible GT digital-directory architecture supports programmable access codes according to Aiphone system configuration.

Codes can be assigned to residents or authorized personnel and managed through the GT Series programming process.

Built-In Door Release

The included GT-DB Audio Module provides a built-in:

Form C Dry Contact

rated:

24V AC/DC, 4A

The relay provides:

• Common

• Normally Open

• Normally Closed

This allows the system to interface with compatible:

• Electric strikes

• Magnetic locks

• Gate operators

• Auxiliary relays

• Access-control interfaces

Verify the voltage and current requirements of the connected locking hardware before installation.

Custom Welcome Message

The GTA-DESB can display a scrolling welcome message up to approximately:

160 Characters

The scrolling speed is adjustable.

The message can be used for:

• Property name

• Welcome message

• Visitor instructions

• Building identification

• Tenant-search instructions

• After-hours information

Visual Visitor Guidance

The audio section includes visual guidance indicators that help visitors understand the status of the intercom call.

Indicators can communicate functions such as:

• Call initiated

• Communication active

• Door released

This provides visual confirmation throughout the visitor interaction.

Six-Language Voice Guidance

The GTA-DESB supports optional audible visitor guidance in six languages:

• English

• French

• German

• Spanish

• Dutch

• Italian

This can be especially useful in larger residential and commercial properties serving a diverse visitor population.

USB PC Programming

Tenant information and entrance settings can be loaded using compatible Aiphone programming software through USB.

Programmable information includes:

• Tenant names

• Tenant numbers

• Access codes

• Welcome message

• Applicable system settings

PC programming is especially useful for buildings with large tenant directories.

24VDC Power

The GTA-DESB operates within the GT Series 24VDC architecture.

Aiphone specifies:

PS-2420UL – 24VDC, 2A Power Supply

with the required number of supplies determined by the complete GT system configuration.

The GT-NSB directory module requires 24VDC power, while the GT-DB audio section receives applicable operating power through the GT common audio bus.

Recommended Audio Wiring

The GTA-DESB uses:

2-Conductor, Solid, Non-Shielded, PE-Insulated Cable

for the audio/data bus.

Recommended Aiphone wire:

• 87200250C – 20 AWG | 500'

• 87200210C – 20 AWG | 1,000'

• 872002P10C – 20 AWG | Plenum | 1,000'

Maximum Audio Wiring Distance

Aiphone specifies up to:

980 ft from the GT-BC to the farthest entrance station

using approved wiring and the appropriate system configuration.

Maximum tenant-station audio distance from the GT-BC is also up to approximately:

980 ft

with approved conductor sizing.

Audio-Only Entrance Station

The GTA-DESB is an audio entrance station.

It does not include a camera.

For projects requiring video visitor identification, Aiphone offers GT Series video entrance configurations such as:

• GTV-DES104B

• GTV-DES202B

• GT-DMB-N

These models incorporate GT Series video capability.

GT Series Capacity

Aiphone's current GTA-DESB specifications support GT Series architectures with up to:

• 16 entrance stations per system

• 4 concierge / guard stations

• 500 tenant stations

• 4 tenant stations per unit

Actual capacity depends on the use of the proper standard or expanded GT Series controllers and system architecture.

Compatible Tenant Stations

The GTA-DESB can communicate with compatible GT Series tenant stations including:

GT-1A

Audio open-voice tenant station.

GT-1D

Audio handset tenant station.

GT-1M3

3.5" video tenant station.

GT-1C7

7" video tenant station.

GT-1C7W

7" app-compatible video tenant station.

When the GTA-DESB is the entrance used for the call, communication remains audio-only because the GTA-DESB contains no camera.

Compatible Concierge Station

The system can also incorporate:

GT-MKB-N – Video Security Guard / Concierge Station with NFC Reader

The guard station can communicate with tenants and compatible GT entrance stations according to the overall system configuration.

GT-BC Audio Bus Controller

The GTA-DESB communicates through the:

GT-BC – Audio Bus Control Unit

The GT-BC manages:

• Audio communication

• System data

• Control signaling

• Common GT audio bus

The GT-BC is sold separately.

Semi-Flush Mounting

The GTA-DESB includes the:

• GF-3B – 3-Module Back Box

• GF-3F – 3-Module Front Frame

These components allow a standard semi-flush installation.

The finished entrance panel measures approximately:

12-5/8" H × 5-5/16" W

Surface-Mount Option

For surface mounting, use the optional:

GT-103HB – 3-Module Hooded Surface-Mount Box

The GT-103HB replaces the recessed GF-3B mounting method and provides:

• Surface-wall installation

• Additional wiring space

• Integrated weather hood

• Added protection from rain and moisture

The GT-103HB is sold separately.

Weather & Vandal-Resistant Construction

The GTA-DESB exterior panels use durable zinc die-cast construction suitable for multi-tenant building entrances.

The system is designed for high-traffic applications such as:

• Apartment entrances

• Condominium entrances

• Commercial lobbies

• Student housing

• Mixed-use buildings

Proper installation and weather protection remain important for exterior applications.

GTA-DESB vs. GT-DMB-N

Both models provide a digital directory and keypad, but they serve different project requirements.

GTA-DESB

Provides:

• Audio intercom

• Digital directory

• Numeric keypad

• Access codes

• Modular 1×3 construction

• GF-3B and GF-3F included

Does not include video or an NFC reader.

GT-DMB-N

Provides:

• Video intercom

• 170° camera

• Digital directory

• Keypad

• NFC reader

• Motion sensor

• Integrated single-panel construction

Choose the entrance station based on whether video and NFC access are required.

Complete Kit Advantage

The GTA-DESB simplifies ordering because Aiphone supplies all of the primary entrance modules and panels as one kit.

Instead of ordering the following individually:

• GT-DB

• GT-DBP

• GT-NSB

• GT-NSP-L

• GT-10K

• GF-10KP

• GF-3B

• GF-3F

the GTA-DESB combines them under one kit model.

Ideal Applications

• Apartment buildings

• Condominium complexes

• Multi-family housing

• Commercial office buildings

• Mixed-use developments

• Student housing

• Senior-living properties

• Large tenant directories

• Controlled-access entrances

• Audio-only multi-tenant intercom systems

• Retrofit GT Series entrances

• New GT Series installations

Important Ordering Information

The GTA-DESB is a complete entrance panel kit and includes:

• GT-DB audio module

• GT-DBP audio panel

• GT-NSB display module

• GT-NSP-L display panel

• GT-10K keypad module

• GF-10KP keypad panel

• GF-3F 3-module frame

• GF-3B 3-module back box

The following are sold separately unless specifically stated:

• PS-2420UL power supply

• GT-BC audio bus controller

• GT-MKB-N guard station

• Tenant stations

• GT-103HB surface-mount enclosure

• Intercom wiring

• Electric strike

• Magnetic lock

• Lock power supply

• Other GT Series equipment

The GTA-DESB is audio-only and does not include an entrance camera.