31
Max. number of IVW2221 in 6-wire operation
small /medium-
sized systems
max. num-
ber IVW2221
AS front-door station
VS power supply and control unit
IS Indoor station
Note: The number of the front-door
stations that can be connected is
limited and is described in the re-
spective product information!
VBVS05
12
larger
system
max. num-
ber IVW2221
BVS20 +
NGV1011
60
FAQ
error pattern
possible causes
our suggested solution
The video image is
black and white.
The color saturation
control of the indoor
station is set to a mini-
mum.
Adjust the contrast or color satura-
tion control.
The transmission level of
the video BUS is too low.
At many components of the video
BUS (e.g. FVY) the transmission
level can be adjusted.
Please see the product infor-
mation of the active transmission
components.
The light intensity does
not reach the minimum
value of 10 lux. Thus, the
camera switch over to
black and white.
The camera module of the front-
door station is very insensitive to
light. Please arrange for a suffi-
cient illumination or use external
cameras.
