Niko 10-572, Руководство пользователя, Страница: 28 / 44

10-572 / 10-573
EN 28
6.5. Time settings
The default time settings for the internal unit are as follows:
Parameter Default setting
Speaking time from the start of a call 2 min (*)
Automatic cut-off of the call after opening the door 4 sec.
Time during which the camera image remains active 80 sec.
Number of times the green indication LED flashes if the video or call channel is busy three times in 2 sec.
Time during which the call at an external unit or a floor call remains displayed 30 sec.
Time during which an internal call initiated by you remains displayed 30 sec.
Time during which the ring tone or image menu remains displayed 10 sec.
(*) You can set the speaking time with the service unit (10-870). For more information, please refer to the manual of this device.
7. TROUBLESHOOTING
1. Using a multimeter, always check the voltage between the terminals first:
Between terminals … The following voltage must be present
a and b 24 Vdc
b and P 26 Vdv
M and P 20 … 27 Vdc
M and V1 or V2 3 … 6 Vdc
2. If the problem with the device is not solved, then go through the following list of possible problems:
Problem Cause Solution
You can hear a negative tone on the
external unit. There is an error in the programming. Erase the programming and start again.
The system is still in programming mode. Exit the programming mode.
The internal video unit is not connected correctly. Check the wiring against the wiring diagram.
The image on the internal video unit is
unclear. Conductors V1 and V2 have been reversed. Reverse conductors V1 and V2.
Incorrect cable:
• the cable distance is too great
• the cable cross-section is too small
• the cable is not a twisted pair cable Replace the current cable with a suitable cable.
The internal units are not connected in series (line in
and line out) but in parallel. Install the internal unit as shown in the wiring
diagram (fig. 1).
No image appears on the internal video
unit. The other functions are working
properly. The wiring is not correctly configured:
• M or P is missing
• V1 or V2 are not connected Check the wiring (fig. 1).
The jumpers are not correctly configured. Position the jumpers correctly on the contacts
(see connection and (dis)assembly).
The blue indication LED is flashing The a and P conductors have been reversed or are
short-circuited.
You will hear the following error tone:
Reverse the a and P conductors or resolve the short
circuit
The device reverts to stand-by mode.
The a conductor is not connected or gets no power
You will hear the following error tone:
Connect the a conductor and check the power
supply.
The device reverts to stand-by mode.
A key got stuck (pressed longer than 15 sec.).
You will hear the following error tone:
Loosen the key on the device or the floor bell push
button.
The device reverts to stand-by mode.