Add another answering and communication location to an Aiphone DB Series system with the Aiphone DB-1SD Open-Voice Sub-Master Station.

Designed for use with the DB-1MD master station, the DB-1SD provides hands-free VOX or push-to-talk communication, door release, All Call communication, auxiliary device control, and adjustable audio settings.

Up to four DB-1SD sub-master stations can be added to one DB-1MD, providing as many as five interior answering stations for each tenant or door-call button.

Key Features

• Genuine Aiphone DB-1SD

• DB Series audio sub-master station

• Designed for use with DB-1MD

• Hands-free VOX communication

• Push-to-talk operation

• Dedicated door-release button

• All Call between stations in the same residence or office

• Option button for external device control

• Normally Open auxiliary dry contact

• Adjustable receive volume

• Adjustable call-tone volume

• Call-tone mute with LED indicator

• Up to 4 DB-1SD stations per DB-1MD

• Up to 5 interior stations per door call button

• Compact wall-mount design

• Optional desk mounting with MCW-S/B

Product Specifications

Manufacturer: Aiphone
Model: DB-1SD
Series: DB Series
Product Type: Audio Sub-Master Station
Communication: Hands-Free VOX or Push-to-Talk
System Power: 15VAC
Current Power Supply Model: PT-1211CA
Door Release: Yes
All Call: Yes
Option Output: Normally Open Dry Contact
Option Contact Rating: 24V AC/DC, 1.6A Maximum
Mounting: Wall Mount
Operating Temperature: 32°F to 104°F (0°C to 40°C)
Height: 7-5/16"
Width: 3-1/8"
Depth: 1-1/16"
Approximate Weight: 0.57 lb / 260g

DB Series Expansion Station

The DB-1SD is used to expand a tenant's DB Series system beyond the primary DB-1MD master station.

A typical configuration can include:

• 1 DB-1MD Master Station

• Up to 4 DB-1SD Sub-Master Stations

This provides up to:

5 Interior Stations Per Door Call Button

The additional stations are ideal when entrance calls need to be answered from multiple rooms or work areas.

Hands-Free VOX Communication

Press the TALK button once to begin hands-free communication.

The station automatically switches between transmit and receive based on voice activity, providing convenient open-voice conversation.

Push-to-Talk Operation

For noisy environments, the DB-1SD can also operate in push-to-talk mode.

This provides greater control over audio transmission in locations such as:

• Warehouses

• Manufacturing facilities

• Busy offices

• Maintenance departments

• High-noise commercial areas

All Call & Internal Communication

The DB-1SD supports All Call communication between stations located within the same residence, office, or tenant system.

Users can make announcements to the other DB Series interior stations and establish room-to-room communication.

This makes the DB Series useful as both:

• A visitor entrance intercom

• An internal communication system

Door Release

The DB-1SD includes a dedicated door-release button.

Door-release power is provided through the compatible entrance station.

Compatible entrance stations include:

• DA-1DS – 1-Call Door Station

• DA-2DS – 2-Call Entrance Station

• DA-4DS – 4-Call Entrance Station

Aiphone commonly specifies the:

EL-12S – 12V AC/DC Electric Door Strike

for compatible installations.

Auxiliary Option Button

The DB-1SD includes an OPTION button for controlling a compatible external device.

The Normally Open dry contact is rated:

24V AC/DC, 1.6A Maximum

Possible applications include:

• Exterior lighting

• Gate operator

• Garage-door control

• Auxiliary relay

• Other compatible equipment

Additional interface equipment may be required depending on the connected load.

Adjustable Receive Volume

A dedicated receive-volume control allows the user to adjust the speaker level for the surrounding environment.

Adjustable Call-Tone Volume

The entrance-call chime can also be adjusted from low to high or muted.

When the call tone is set to mute, the red indicator LED provides a visual reminder.

Station Controls

The DB-1SD includes:

• Microphone

• Speaker

• TALK button

• OFF button

• CALL / All Call button

• Door-release button

• OPTION button

• Receive-volume control

• Chime-volume control

• Red transmit / mute indicator

• Power switch

Compatible Entrance Stations

The DB Series works with compatible DA Series entrance stations.

DA-1DS

1-Call Audio Door Station

For a single tenant or office.

DA-2DS

2-Call Audio Entrance Station

For two tenants or offices.

DA-4DS

4-Call Audio Entrance Station

For up to four tenants.

DB Series Capacity

A complete DB Series system supports:

• 1 entrance

• Up to 4 tenants

• Up to 5 answering stations per tenant

• Up to 20 interior answering stations total

Each tenant generally uses:

• 1 DB-1MD

• Up to 4 DB-1SD stations

Recommended Wiring

DB-1MD to DB-1SD

Use:

4-Conductor, Solid, Non-Shielded, Low-Capacitance Cable

Recommended:

• 87180450C – 18 AWG | 500'

• 871804P50C – 18 AWG | Plenum | 500'

Between DB-1SD Stations

Aiphone specifies:

4-Conductor + 2-Conductor when sharing power

Compatible cable options include:

• 822206 Series

• 871804 Series

Always follow the DB Series wiring diagram for the exact power configuration.

Maximum Wiring Distance

DB-1MD to Farthest DB-1SD

Maximum Distance: 330 ft

Power Supply to DB-1MD

22 AWG: Up to 180 ft
18 AWG: Up to 510 ft

Power Supply to Entrance Station – Cumulative

22 AWG: Up to 360 ft
18 AWG: Up to 1,020 ft

Optional Call Extension

Aiphone supports the:

IER-2 – Call Extension Speaker

for applications where the entrance-call tone needs to be heard in another room or area.

The IER-2 connects to the DB-1MD master station.

Optional External Signaling

The:

RY-ES – External Signaling Relay

can be used in place of the IER-2 to activate a compatible:

• Bell

• Buzzer

• Light

• Strobe

• Other external notification device

Optional Desk Stand

The DB-1SD can also be used with the:

MCW-S/B – Adjustable Desk Stand

The stand allows compatible Aiphone stations to be positioned at approximately 45° or 60° for desktop use.

Ideal Applications

• Commercial offices

• Apartment buildings

• Condominium buildings

• Residential entrances

• Reception areas

• Warehouses

• Clinics

• Administrative offices

• Small multi-tenant properties

• Existing DB Series expansions

• Additional answering locations

Important Ordering Information

The DB-1SD is a sub-master station and requires a compatible DB-1MD master station as part of the DB Series system.

This listing is for the DB-1SD only.

The following are sold separately unless specifically stated:

• DB-1MD master station

• DA Series entrance station

• PT-1211CA transformer

• Electric strike

• Intercom wiring

• IER-2 call-extension speaker

• RY-ES signaling relay

• MCW-S/B desk stand

• Other system accessories