Extend an Aiphone intercom call tone into another room or area with the Aiphone IER-2 Call Extension Speaker.

The IER-2 connects to a compatible Aiphone answering, master, or sub station and reproduces the station's incoming chime tone at a remote indoor location.

Ideal for offices, warehouses, reception areas, homes, and other locations where the primary intercom station may not be easily heard, the IER-2 features a simple 3-position volume control, compact wall-mount design, and easy 2-wire non-polarized connection.

Key Features

• Genuine Aiphone IER-2

• Call extension speaker

• Extends intercom call/chime notification

• Reproduces the call tone from the connected station

• Chime notification only

• Does not provide voice communication

• Adjustable 3-position volume

• High / Medium / Low settings

• Single-pair wiring

• Non-polarized connection

• Surface mounts directly to wall

• Mounts to standard 1-gang electrical box

• Compact indoor enclosure

• ABS plastic housing

• No separate local user controls other than volume

• Designed for compatible Aiphone intercom systems

• Useful where the primary station cannot easily be heard

Product Specifications

Manufacturer: Aiphone
Model: IER-2
Product Type: Call Extension Speaker
Function: Remote Call / Chime Notification
Voice Communication: No
Call Tone: Reproduces Call Tone from Connected Intercom Station
Volume Control: 3 Positions
Volume Settings: High / Medium / Low
Wire Type: Single Pair
Polarity: Non-Polarized
Mounting: Surface Mount
Electrical Box: Standard 1-Gang Box Optional
Material: ABS Plastic
Installation Location: Indoor Only
Weather Resistant: No
Height: 4-3/4"
Width: 3-7/16"
Depth: 1-1/8"
Metric Dimensions: 120 × 88 × approximately 29 mm
Approximate Weight: 0.33 lb / 150 g

Call Extension Function

The IER-2 is designed for situations where the normal intercom call tone cannot be heard throughout the property.

When the connected Aiphone answering station receives an incoming call, the IER-2 produces the corresponding call/chime tone at its remote location.

Typical examples include:

• Intercom master at front desk with IER-2 in back office

• Master station in office with IER-2 in warehouse

• Main station in living area with IER-2 in another room

• Reception station with remote chime in staff area

• Intercom station in noisy commercial environment

Chime Only – No Communication

The IER-2 is a notification speaker, not an intercom station.

When the call tone sounds:

There is no voice communication through the IER-2.

To answer or communicate with the caller, the user must go to the connected:

• Master station

• Answering station

• Sub station

The IER-2 should not be confused with an additional intercom handset or sub-master station.

Same Call Tone as Connected Station

The IER-2 reproduces the call/chime tone generated by the connected compatible intercom station.

This gives personnel in another room an audible indication that the intercom is receiving a call.

It does not generate a separate third-party bell or programmable notification sound.

3-Position Volume Control

A front-mounted volume control provides three call-tone levels:

• HIGH

• MEDIUM

• LOW

This allows the notification level to be adjusted for the installation environment.

High

Useful in:

• Warehouses

• Shops

• Busy offices

• Mechanical areas

• Higher-noise environments

Medium

Suitable for general office and residential use.

Low

Useful in quieter:

• Offices

• Reception areas

• Residential rooms

• Administrative spaces

Simple 2-Wire Connection

The IER-2 connects using:

One Pair / 2 Wires

The connection is:

Non-Polarized

This simplifies installation because the two conductors do not have positive and negative polarity requirements at the IER-2.

Connection terminals on the intercom station can vary by system, so always follow the wiring diagram supplied with the connected master or sub station.

No Separate Communication Bus

The IER-2 is connected directly to the compatible answering station rather than functioning as an independent intercom station.

Its only purpose is to reproduce the call tone.

It does not provide:

• Audio conversation

• Video

• Door release

• Entrance monitoring

• Intercom calling

• Network connectivity

• Access control

Surface-Wall Mounting

The IER-2 can mount directly to a finished wall using the supplied mounting screws.

For surface wiring, cable can be routed into the unit according to Aiphone's installation instructions.

This mounting method is convenient for retrofit applications where an electrical box is not available.

1-Gang Box Mounting

The IER-2 can also mount over a standard:

1-Gang Electrical Box

This provides a clean installation where the call-extension wiring is concealed inside the wall.

The mounting-hole spacing is designed for standard single-gang installation.

Indoor Use Only

The IER-2 is designed for:

Indoor Installation

It is not weather resistant.

Do not install the IER-2:

• Outdoors

• In direct rain

• In bathrooms or high-humidity areas

• In locations exposed to steam

• Near corrosive chemicals

• In dusty or oily environments

• In areas with extreme temperature changes

For reliable operation, install it in a protected interior location.

Compatible Aiphone Systems

Depending on the answering/master station being used, Aiphone documents IER-2 compatibility with systems including:

• AX Series

• DB Series

• JO Series

• JP Series

• JV Series

• KB Series

• NIM Series

Aiphone's historical technical documentation also identifies compatibility with:

• JF Series

• JK Series

JF and JK equipment is legacy, so verify the specific answering-station model when using the IER-2 for replacement or service work.

DB Series Applications

The IER-2 is an optional accessory for compatible:

• DB-1MD – Open Voice Master Station

• DB-1SD – Sub Master Station

When the DB station receives an entrance call, the IER-2 can reproduce the call tone at another indoor location.

This is particularly useful in apartments, offices, and small commercial facilities.

JO Series Applications

The IER-2 can extend the incoming call notification from compatible JO Series answering stations.

Typical JO applications include:

• Small business entrances

• Residential entrances

• Reception areas

• Offices

JP Series Applications

The IER-2 is compatible with applicable JP Series video intercom answering stations.

It can provide an additional audible notification without requiring another full video station.

JV Series Applications

Aiphone's current catalog identifies the IER-2 as an accessory for the JV Series.

Compatible system equipment includes stations such as:

• JV-1MD – Video Master Station

• JV-1FD – Video Expansion Station

The IER-2 allows the JV call tone to be heard at another indoor location without adding another full answering station.

KB Series Applications

The IER-2 can also be found in compatible KB Series installations.

Because KB Series equipment is legacy, verify the exact master or sub-master model before ordering a replacement accessory.

NIM Series Applications

Aiphone also identifies the IER-2 for applicable NIM Series installations.

This can provide additional audible call notification in facilities where staff may be away from the primary answering station.

One Speaker Per Connected Station

Aiphone's installation instructions describe the IER-2 as:

One call extension speaker for the connected master or sub station.

For installations requiring notification in multiple remote areas, verify the allowable accessory configuration for the specific intercom station before installing additional units.

IER-2 vs. RY-ES

The IER-2 and RY-ES External Signaling Relay serve different purposes.

IER-2

Provides:

• Built-in audible chime speaker

• 3-position volume control

• Simple remote call notification

• No separate external signaling device required

RY-ES

Provides:

• Relay output

• Trigger for external device

• Can operate compatible bells

• Can operate buzzers

• Can operate visual signaling devices

Choose the IER-2 when a simple additional Aiphone call tone is required.

Choose the RY-ES when the application requires a separate external signaling device.

Ideal Applications

• Commercial offices

• Apartment residences

• Condominium residences

• Reception areas

• Warehouses

• Back offices

• Service counters

• Small businesses

• Property-management offices

• Residential homes

• Healthcare staff areas

• Existing Aiphone system upgrades

• Remote intercom call notification

Important Ordering Information

This listing is for the:

Aiphone IER-2 Call Extension Speaker

The IER-2 provides call/chime notification only.

It does not provide two-way intercom communication.

Before ordering, verify that the existing Aiphone answering station provides the required IER-2 call-extension connection.

The following are not included unless specifically stated:

• Intercom master station

• Intercom sub station

• Door station

• System power supply

• Intercom system wiring

• RY-ES external signaling relay

• External bell or signaling device

Installation wiring and connection terminals vary by Aiphone system.