Aiphone GT-1A Operation Manual Download Page 2

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WARNING

(Negligence could result in death or serious injury.)

 1.  Do not dismantle or alter the unit. Fire or electric shock could result.
 2.  Do not put any metal and flammable material into the unit through the 

openings. Fire, electric shock, or unit trouble could result.

 3.  Keep the unit away from water or any other liquid. Fire or electric 

shock could result.

 4.  During an electrical storm, do not touch the unit. Electric shock could 

result.

 5.  If there is any smoke, unusual odor, or abnormal sound, or if you drop 

or damage the unit, turn off the system power breaker immediately. 
Fire or electric shock could result.

CAUTION

(Negligence could result in injury or damage to property.)

 1.  Do not put anything on or cover the unit with cloth, etc. Fire or unit 

trouble could result.

 2.  Do not place your ear near the speaker during use. An unexpected loud 

sound could cause hearing damage.

General Precautions

1.  Keep the unit more than 1 m (3.3’) away from radio or TV set.
2.  Keep residential/tenant station more than 20cm (7-7/8”) away from other 

radio equipment, for example floor heating controller, wireless router or 
cordless telephone, etc. It may cause unwanted noise distortion.

3.  As to other manufacturer’s devices (such as sensor, detectors, door 

releases) used with this system, comply with the Specifications and 
Warranty conditions that the manufacturers or venders present.

4.  Talk within 30cm (12”) from this unit. If you are too far away, it may be 

difficult to hear audio.

5.  Using a mobile phone or professional-use radio equipment such as 

walkie-talkie close to the system may cause a malfunction.

Notices

•  Please note that we will under no conditions be liable for any damages or 

losses resulting from this product’s contents or specifications.

•  Please note that we will under no conditions be liable for any damages or 

losses due to malfunctions, problems, or operational errors in this product.

•  The unit is inoperative during power failure.
•  This unit is designed for indoor use only. Do not use at outdoor locations.
•  This system is not intended for life support or crime prevention. It is just a 

supplementary means of conveying information. Aiphone will under no 
conditions be liable for loss of life or property which occurs while the 
system is being operated.

•  In areas where broadcasting station antennas are close by, this system may 

be affected by radio frequency interference.

•  The unit may get slightly warm, but this is not a malfunction.
•  The hands-free communication is a mode in which transmitting and 

receiving stations are switched automatically so that a louder sound can be 
heard prior to a quieter sound. If the sound around the residential/tenant 
station with monitor or the video door station (entrance) is loud, 
communication may be interrupted or voice response may be difficult.

•  During communication, if you speak before the other person has finished 

talking, your voice may not come through clearly. Conversation will 
proceed smoothly if you speak when the other person has finished talking.

•  If you speak in a fixed tone, the noise-cut function may judge it to be a 

noise and cut the transmission, but this is not a malfunction.

•  This unit is intended to be mounted on a wall only. It cannot be used on a 

desktop.

•  Available functions and services are limited according to the specifications 

of the installed system.

 Prohibited

  Do not dismantle unit

  Keep unit away from water

  Be sure to follow the instruction

PRECAUTIONS

TALK

Door release button

Microphone

Guard station call/light button

•  Calls the guard station.
•  Turns on the entrance light during 

calling and communication, when it 
is installed in common area.

Transmission LED (red)

The LED turns on while speaking.

Option button

Operates a connected device such 
as a light.

Tone off LED (red)

When the call tone volume switch 
is “OFF”, it flashes at 
approximately 4 second intervals.

Speaker

[Front]

[Bottom]

TALK button

 1 

NAMES AND FUNCTIONS

Speaker volume switch
(LOW, MEDIUM, HIGH)

Call tone volume switch
(OFF, MEDIUM, HIGH)

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