Part 4. System Programming 12~15; Audio Jumper; Video Resistor; Door Station Address - LeeLen JB-304 User Manual

4.1 Audio jumper

The audio jumper has to be put on AF position in the indoor phone if there is only one indoor phone.
In case there are more indoor phones, only the last indoor phone is required to do that. Meanwhile
the other indoor phones' jumpers have to be put on NC position. Please do the same if there are two
or more routes such as the diagrams of C1 and C2 in 3.2.3.
JP403-OUT
PWR
JP501
AF
AF
V
G
NC 2
JP401
+18V
G
8
Jp81
Video indoor phone(Model N60)

4.2 Video resistor

In case the image display is rolling or with any other abnormality problem and the image adjustors can
not help, please try to use the enclosed video resistors to connect between GND (G) and Video (V)
terminals in the last video indoor phone(s). Either end can be connected to G or V.
Green Black
Purple
75Ω video resistor
Diagram (3.2.3)
A
B
C1
C2
C3

4.3 Door station address

If there are two or more door stations, the door stations have to be addressed by cutting the code wires
as the following table. The code wires are on the position
Door station address No.
0 (1st door station)
1 (2nd door station)
2 (3rd door station)
3 (4th door station)
Please be sure every door station has exclusive address numbers if they work together.
Part 4. System programming
JP402-IN
PWR
AF
V
G
Green
Gold
Brown
150Ω video resistor
Video resistor size and quantity required
75Ω video resistor: 1 piece
75Ω video resistor: 1 piece
150Ω video resistor: 2 piece
Connect each on the two indoor phones that are closest to the door stations.
150Ω video resistor: 2 piece
Connect each piece on the two indoor phones separately.
75Ω video resistor: 1 piece
Code wire: S1
Brown
Gold
6 as 3.2.2 A and marked as S1 and S2.
%
%
%
%
12
JP403- OUT JP402-IN
PWR
JP501
AF
AF
V
G
NC 2
JP401
+18V
G
8
Jp81
Video indoor phone(Model N60)
Code wire: S2
%
%
%
%
PWR
AF
V
G