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16
10-589
Setting times
The following times have been programmed by default:
Speaking time
after starting a call
2 min
Speaking time
after opening of the door
4s
Time the
camera image
remains active
80s
Number of times the
red LED
flashes when the
videophone
is
busy
5 times within 10s
Number of times the
red LED
flashes when the
video or voice
channel is
busy
3 times within 6s
Time a
call
from an external unit or floor bell push button remains displayed
2min
Time an
internal call
launched by you remains displayed
30s
Time a
control function
of a relay remains active
30s
Time the
settings
can be changed after activation
8s
You can also set other times via
• the
power supply
For more information about programming via the power supply, see the power supply manual.
• the
service unit
For more information about programming via the service unit, see the service unit (10-870) manual.
• the
relay
5. TROUBLESHOOTING
In case of problems, always first check with a multimeter whether the following
voltages
are present:
• between b and a: approx. +24VDC;
• between b and P: approx. +24 VDC;
• between M and P: approx. +24VDC;
• between M and V1 or V2: approx. +5VDC.
A list of possible problems with their causes and remedies is given below.
Problem
Cause
Remedy
You hear a negative tone when
pressing
.
Programming error.
Erase the programming and programme again.
System is still in programming mode.
Exit programming mode.
Video internal unit is not connected cor
-
rectly.
Check the wiring.
Two functions assigned to the button.
If a call is in progress, the relay switches to open the door.
If no call is in progress, the light relay switches.
The image on the video internal
unit is not clear.
Conductors V1 and V2 have been
reversed.
Reverse conductors V1 and V2.
Cable is unsuitable:
• cable distance is too great;
• cable is eroded;
• cable cross-section too small;
• cable is not a twisted pair cable.
Replace the current cable with a suitable cable.
The gain on the splitters is not set cor-
rectly.
Adjust the gain on the splitters with the potentiometers.
No image on the video internal
unit. The other functions work
OK.
Wiring is not connected correctly:
• M or P missing;
• V1 or V2 not connected.
Check the wiring (see wiring diagram).
Jumpers not configured correctly.
Set the jumpers correctly on the contacts (see chapter Installation)
No voice on the video internal
unit. Only the image is dis-
played.
Wiring is not connected correctly.
Check the wiring (see wiring diagram).
EN