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Light
Orange
Orange
White
Blue
GH-4Z
B1
B2
R1
R2
B1B2R1R2
B1B2R1R2
B1B2R1R2
B1
B2
R1
R2
OUT 3 OUT 4
B1
B2
R1
R2
B1
B2
R1
R2
OUT 1
LINE OUT
LINE IN
OUT 2
BA
GH-4Z
BA
BA
1Px2 1Px2
1Px2 1Px2
1Px2
Doorbell
Doorbell
Divided cabling with GH-4Z
Trunk line No.1
Terminate
the last GH-4Z
Monitor to monitor cabling
Trunk line No.2
1Px2
1Px2
1Px2
1P
R1
R2
B1
B2
C
CE
C
CE
B1
B2
B1
B2
OUT
IN
R1
R2
R1
R2
OUT
IN
GH-1MD
GH-1KD
GH-1KD
OUT
OUT
IN
IN
OUT
IN
C
CE
B1
B2
B1
B2
R1
R2
R1
R2
BA
GH-1KD
GH-1ADGH-1AD
OUT
IN
OUT
IN
C
CE
B1
B2
B1
B2
R1
R2
R1
R2
BA
GH-1KD
OUT
IN
OUT
IN
C
CE
B1
B2
B1
B2
R1
R2
R1
R2
BA
R1
R2
R1
R2
C
CE
OUT
IN
R1
R2
R1
R2
C
CE
Trunk line
No. 3 to 6
1Px2
1Px2
B1B2B1B2
A1A2
B1B2B1B2 B1B2B1B2
OUT1
IN1
A1A2
IN2
A1A2
IN3
A1A2
IN4
A1A2
IN5
OUT2 OUT3 OUT4 OUT5 OUT6
+
R1
R2
+
-
Power supply
Power supply
Power supply
AC
GH-BC
+
-
AC
+
-
AC
+
Video Entrance station No. 2 to 5
Doorbell
GH-1KD
OUT
IN
OUT
IN
C
CE
B1
B2
B1
B2
R1
R2
R1
R2
BA
R1R2
ELB ELC ELM
+
RY RY
-
A1A2CN2
CN1
GH-DA
GH-RY
GH-NS
GH-10K
GH-VA
2nd
GH-MK
GH-MK
Power supply
+
-
CN3
CN100
C
CE
+
-
R1
R2
R1
R2
C
CE
R1
R2
R1
R2
Doorbell
Distribution
point
SW4
SW4
IN
IN
--
STDEXP
Light control
Timer
Entrance station
CN1 CN3
Door
bell
Door
bell
+
-
AC
Wiring