Add external paging capability to a compatible Aiphone intercom system with the Aiphone BA-1 Paging Adaptor.

Designed for compatible LEF and LEM Series master stations, the BA-1 allows the intercom microphone to feed an external paging amplifier and speaker system.

This eliminates the need for a separate paging microphone and allows personnel to make announcements directly through the existing Aiphone intercom master station.

Key Features

• Genuine Aiphone BA-1

• Paging adaptor for compatible Aiphone intercom systems

• Designed for LEF Series

• Designed for LEM Series

• Provides outgoing paging to external speakers

• Interfaces intercom master with external paging amplifier

• Eliminates the need for a separate paging microphone

• 20 Ohm input

• 10k Ohm output

• Selectable 0 dB or -20 dB output

• Powered from compatible master station

• Uses 2-conductor overall-shielded cable

• Compact surface-mount design

• Ideal for commercial paging and intercom integration

Product Specifications

Manufacturer: Aiphone
Model: BA-1
Product Type: Paging Adaptor
Compatible Series: LEF / LEM
Input Impedance: 20 Ohms
Output Impedance: 10k Ohms
Output Level: 0 dB or -20 dB, Selectable
External Amplifier Requirement: AUX Input, 10k Ohms or 100mV for Rated Output
Power: Supplied by Compatible Master Station
Recommended Wire: 2-Conductor Overall-Shielded
Recommended Aiphone Cable: #822202
Height: 4-1/8"
Width: 2-1/2"
Depth: 1-1/2"
Application: Intercom-to-Paging System Interface
Manufacturer Status: Discontinued

How the BA-1 Works

The BA-1 connects a compatible Aiphone intercom master station to an external paging amplifier.

When paging is initiated from the master station, the BA-1 sends the intercom audio signal to the amplifier, which then distributes the announcement through the connected paging speakers.

A typical system may include:

• Aiphone LEF or LEM master station

• Aiphone BA-1 paging adaptor

• External paging amplifier

• Commercial paging speakers

• Aiphone-approved shielded wiring

External Paging Integration

The BA-1 is designed for paging amplifiers equipped with an appropriate auxiliary input.

Aiphone specifies:

AUX Input: 10k Ohms
or
Input Sensitivity: Approximately 100mV for rated output

The BA-1 offers selectable output levels of:

• 0 dB

• -20 dB

This allows the output to be matched to compatible amplifier input requirements.

Compatible Aiphone Systems

The BA-1 is designed for use with compatible:

LEF Series

• LEF-3

• LEF-3C

• LEF-3L

• LEF-5

• LEF-5C

• LEF-10

• LEF-10C

• LEF-10S

LEM Series

• LEM-1

• LEM-3

• Other compatible legacy LEM configurations

Always verify the wiring requirements of the exact master station before installation.

LEF Series Paging Applications

The BA-1 is particularly useful in commercial LEF Series installations where the intercom system also needs to provide announcements throughout a building.

Typical applications include:

• Offices

• Warehouses

• Manufacturing facilities

• Schools

• Healthcare facilities

• Security departments

• Maintenance facilities

• Distribution centers

Personnel can use the existing intercom master rather than maintaining a separate paging microphone.

Recommended Wiring

Aiphone specifies:

2-Conductor Overall-Shielded Cable

Recommended Aiphone cable family:

#822202

Examples include:

• 82220250C – 22 AWG, 2-Conductor, Overall Shield, 500'

• 82220210C – 22 AWG, 2-Conductor, Overall Shield, 1,000'

Always follow the applicable BA-1 and intercom-system wiring diagram.

Compact Installation

The BA-1 measures approximately:

4-1/8" H x 2-1/2" W x 1-1/2" D

Its compact design allows installation near the intercom master station or paging-amplifier equipment.

Ideal Applications

• Commercial offices

• Warehouses

• Manufacturing facilities

• Schools and universities

• Healthcare facilities

• Government buildings

• Security offices

• Maintenance departments

• Internal paging systems

• Existing LEF intercom installations

• Legacy LEM installations

Important Product Status

The Aiphone BA-1 is discontinued by the manufacturer.

It remains useful for:

• Repairing existing LEF installations

• Maintaining existing LEM systems

• Replacing a failed BA-1

• Integrating legacy Aiphone intercoms with existing paging equipment

Availability may be limited to remaining distributor inventory.

Important Ordering Information

This listing is for the BA-1 paging adaptor only.

The following are sold separately unless specifically stated:

• Aiphone master station

• Paging amplifier

• Paging speakers

• Shielded communication cable

• Intercom sub stations

• Door stations

• Other system accessories

Confirm that the external paging amplifier provides a compatible AUX input before ordering.