Niko 10-571 Installationsanleitung Seite 31

10-571 Installation manual internal video unit
Some errors can be indicated by the device itself:
Indication in error
mode
Both LEDs are flashing
A list of other possible problems with their causes and solutions is given below.
Problem Cause
You hear a nega- Programming error.
tive tone when
pressing .
System is still in programming mode.
You press , Video internal unit is not connected cor-
but nothing hap- rectly.
pens.
Two functions assigned to the button.
The image on Conductors V1 and V2 have been
the video internal reversed.
unit is not clear.
Cable is unsuitable:
• cable distance is too great;
• cable is eroded;
• cable cross-section too small;
• cable is not a twisted pair cable.
The gain on the splitters is not set cor-
rectly.
No image on the Wiring is not connected correctly:
video internal • M or P missing;
unit. The other • V1 or V2 not connected.
functions work
OK.
Jumpers not configured correctly.
EN
Tone Cause
The a and P conductors are switched or short-cir-
cuited.
The a or M conductor is not connected or not sup-
plied with power.
A key is stuck (pressed for longer than 15 s).
Remedy
Erase the programming and pro-
gramme again.
Exit programming mode.
Check the wiring.
If a call is in progress, the relay swit-
ches to open the door.
If no call is in progress, the light relay
switches.
Reverse conductors V1 and V2.
Replace the current cable with a
suitable cable.
Adjust the gain on the splitters with
the potentiometers.
Check the wiring (see wiring dia-
gram).
Set the jumpers correctly on the con-
tacts (see chapter Installation)
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