Aiphone GFO-1DLF User Manual

The GFO-1DL and GFO-1DLF are open voice tenant stations for the GF system.  The unit features door answering and 
door release with up to five entrance stations, Concierge call, and the connection of an optional panic call station (GFK-
PS). A separate standard doorbell can be added to ring the unit with a unique tone. The unit includes TALK, DOOR 
RELEASE, and CONCIERGE CALL buttons. Each GFO-1DL counts as 2.5 handset stations on a standard GF system, 
therefore the maximum capacity of the system is 100 stations (see specifications).

TALK: Press to 

answer call, release 

to listen

END: Press to end the 

call (with the entrance  

panel or concierge).

KEY SYMBOL: Press 

to release the door

BELL SYMBOL: Press 

TALK first, then BELL button 

to call the Concierge/

Security Guard (if 

applicable)

Microphone

Speaker

LED: Green during 

communication

VOLUME: Controls 

incoming volume

3-position switch underneath faceplate 

to adjust call tone to OFF, MID, HIGH. 

LED flashes red when call tone is OFF.

1. The GFO-1DL can be used in any GF system as an audio-only open voice room station.  

(No video if used in a video system.)

- GF Audio entry with buttons
- GF Audio entry with digital entrance panel
- GF Video entry with buttons
- GF Video entry with digital entrance panel

2. Station capacity of the GF system changes when using open voice tenant stations. Each GFO-1DL 

occupies the capacity of 2.5 handset or monitor stations, thus lowering the overall number of 
tenant stations allowed in a system.

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