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OPERATION:
1. Press the tenant's call button on the entrance panel, and a ring tone will be heard at the tenant station.
1a. If a digital entrance panel is used, enter the tenant's 3 or 4 digit code or scroll to their name, then press the green-lit
"bell" button on the entrance panel.
2. Answer the call at the tenant station by pressing the TALK button. NOTE: There is a brief delay when initially
pressing TALK, so pause for approximately one second before speaking.
3. Release TALK button to listen to the calling visitor. To speak to caller again, press TALK button. There is no delay on
subsequent presses of the TALK button.
4. To activate the door release, momentarily press the KEY symbol button. This will activate the door release
mechanism at the calling entrance panel. The duration of the release is determined by the door release timer setting
on the back of the GF-DA/B audio module.
5. To end the conversation, press END button. If END is not pressed, the communication path will automatically time
out after approximately 2-1/2 minutes.
NOTE: If the END button was not pressed at the end of the previous call, it must be pressed first before pressing the
TALK button to answer a new incoming call.
Call from Entrance panel
or Concierge Station
Answer the call at the
tenant station by
pressing TALK button to
talk, release to listen.
END
Press "key" symbol
button to release
the door.
Press END button to
conclude the call.
Note: Above graphics are not an exact replication of the GFO-1DL, but are for illustration purposes only.
Pg. 4
PROBLEM POSSIBLE CAUSE SOLUTION
Audio works in programming mode, but after
programmed, can't call or communicate with room
station.
Holding call button down too long
when programming.
When in program mode, press and release call button
quickly. Do not hold button down too long, which
actually clears the programming for that station. When
programming with digital panel, dial number, then press
and release green "bell" button.
When programming the first station in an
apartment, 2 beeps are heard instead of 1 beep
(Two beeps should be heard only when
programming 2nd unit in each apartment)
Another station has been
programmed on that channel and
the 2 beeps indicate a 2nd station
programmed on the same call
button.
Press and hold call button until solid beep is heard at
entrance while in programming mode to clear the
memory. Press again once and release. If 1 short beep
is heard, programming is correct. If 5 short beeps are
heard, clear again and reprogram.
When programming, 5 beep tones in rapid
succession are heard instead of the normal single-
or double-beep tones.
Programming done improperly, or
wiring is not correct.
Clear the programming by pressing the call button and
holding it until you hear a solid tone, then reprogram. If
that does not work, double check wire connections.
No communication at GFO-1DL in program mode,
even with TALK button pressed.
END button not pressed on
another station in the system
Make sure that the END button is pressed on each
station after it's been programmed. Only the station
being programmed should be in the communication
mode with the entrance station. Go to each station in
the system and make sure END button is pressed.
LED on GF-DA at entry panel does not light, panel
emits high-pitched squeal. Program button does
not work.
Panel identification DIP switches
set improperly.
If more than one entrance station is set to the same
identification number (1 - 5) the program button will not
work. The LED will not light and entrance panel will emit
a high pitched whistle.
In program mode, system will not give the
acknowledgement beep or the clear tone when
holding down the button.
Wire changes made with power
applied, or ground fault.
Cycle system power to any / all bus controllers present
(GF-BC, GF-VBC, etc).
Can't establish communication in program mode
between GF-MK and GFO-1DL. Not following proper sequence.
After entering program mode on GF-MK, handset on
that unit must be picked up first before pressing TALK
button on GFO-1DL. If no communication, press END
button on GFO-1DL, then pick up GF-MK handset. Then
press TALK button on room station and communication
should be established.
TROUBLESHOOTING GUIDE: