66250756-EN - V2.1 - 05/11/19
- 13 -
4000 Series GSM Lite Audio Intercom - Technical Manual
4000 Series GSM Lite Audio Intercom
Art. 4901 Technical Information
BACK LIGHT ADJUSTMENT JUMPER (JPL)
The jumper JPL (
Fig.9
,
) is used to adjust the brightness and determine the operation of the backlit buttons. There are four
brightness settings for the backlit buttons and two programming modes (mode 1 and 2) for the jumper.
The two modes that can be programmed change the functionality of the jumper JPL. The table below indicates the programming
mode, the position of the jumper and the operation of the backlit buttons.
Jumper Position
Back light Operation
Mode 1
A
A
B
Back light OFF in standby. Full brightness when any buttons are pressed.
B
(default)
A
B
Back light on low brightness in standby. Full brightness when any buttons are pressed.
Mode 2
A
or
B
A
B
or
A
B
Back light on full brightness all of the time.
JPL removed in
either Mode
A
B
No back light, the back light is completely disabled.
PROGRAMMING MODE 1 (DEFAULT MODE, JPL = B)
Follow the steps below to set the codelock to mode 1:
1. Disconnect the power from the Art.4901 codelock;
2. Short out terminals
-
and
SW2
;
3. Press and hold down button
1
and keep it pressed down
while the power is switched back ON;
4. When power is restored to the codelock wait for the module
to emit a single beep and the red program LED (
Fig.9
,
) to
flash once;
5. Listen for the confirmation tone and wait for the red program
LED (
Fig.9
,
) to flash once again;
6. Release button
1
and remove the short between terminals
-
and
SW2
;
7. Set the jumper JPL to the desired position.
PROGRAMMING MODE 2
Follow the steps below to set the codelock to mode 2:
1. Disconnect the power from the Art.4901 codelock;
2. Short out terminals
-
and
SW2
;
3. Press and hold down button
2
and keep it pressed down
while the power is switched back ON;
4. When power is restored to the codelock wait for the module
to emit a double beep and the red program LED (
Fig.9
,
)
to flash once;
5. Listen for the confirmation tone and wait for the red program
LED (
Fig.9
,
) to flash once again;
6. Release button
2
and remove the short between terminals
-
and
SW2
;
7. Set the jumper JPL to the desired position.
BACK LIGHT AND BUTTON OPERATION
If the back light programming mode is set to mode 1 (with jumper JPL in either the A or B position) when a button is pressed on the
keypad the back light will switch to full brightness for approximately 10 seconds.
After this time the back light will either switch OFF or switch back to low brightness (depending on the jumper position) unless
another button has been pressed within the 10 second period in which case the back light will stay on full brightness for a further
10 seconds.
The exception to this is if the back light programming mode is set to mode 2, i.e. the back light will be on full brightness all of the
time or if the jumper is removed the back light will be disabled.
OPERATION
• Type in the programmed access code and press
ENTER
to confirm;
• If the access code is correct, the green accept LED (
Fig.9
,
) will illuminate for approx. 2 seconds and the relay that is relevant to
the code will operate for the programmed relay time;
• If an incorrect access code is entered, a continuous melody will sound for 4 or more seconds, according to the number of mistakes
and the red program/error LED (
Fig.9
,
) will illuminate.
OPERATION NOTES
• To operate the relays together, set the same code for each relay;
• If an incorrect code is entered, the system will lock out for 5 seconds which will increase each time an incorrect code is entered.
The system will only operate when the correct code is entered.
