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1-2
Expanded System Configuration Diagram
1. Common trunk line #1, 2
2. Sub trunk line #1 - 4
Sub trunk line #2 - #4 are the same as #1. Maximum 125 units
per sub trunk line.
(1) Audio signal line
(2) Video signal line
(3) Power supply line
a. Entrance station (For details, see 2-1 and 2-2)
b. Bus control unit
c. Residential station (For details, see 2-4):
Station-to-station wiring (For details, see 1-1)
d. Residential station (For details, see 2-4):
Homerun wiring (For details, see 1-1)
Do not mix station-to-station wiring and homerun wiring on a
single trunk line.
e. Security Guard Station
f. Expanded Bus control unit
[1] Expanded video Bus control unit GH-VBX
[2] Expanded Bus control unit GH-BCX/A
[3] Distribution terminal (junction): Not included
[4] Power supply PS-2410LC, PS-2410LD, PS-2410DIN
Entrance Station
Residential stations
per Sub trunk line
Residential Station
Security Guard Station
Residential stations
in the same residence
Bus control unit
per Common trunk line
Bus control unit
per Sub trunk line
Capacity
Maximum 16 stations
(up to 3 stations per trunk)
Maximum 125 stations
(up to 25 stations per trunk)
Maximum 500 stations
Maximum 4 stations
Maximum 4 stations
(up to 2 monitor stations)
Maximum 1 unit
Maximum 1 unit
1-3
Wiring Distance
∗ DP = Distribution Point
Diameter of wires
GH-BC - DP
DP - GH-DA/A
GH-VBC - GH-VA
GH-MK - DP
DP - farthest residential station
(R1-R2)
(Includes system with GH-4Z)
GH-VBC - farthest residential station
(1 monitor unit/residence)
(Includes system with GH-4Z)
GH-VBC - farthest residential station
(2 monitor units/residence)
(Includes system with GH-4Z)
GH-VBC (SW: STD)
- GH-VBC (SW: EXP)
GH-BC - power supply
GH-VBC - power supply
GH-NS - power supply
GH-MK - power supply
Standard system
total wiring distance
GH-BCX/A - power supply
GH-BC - GH-BCX/A
GH-VBC - GH-VBX
GH-DA/A - GH-BCX/A
GH-VA - GH-VBX
GH-BCX/A - farthest residential station
(R1-R2)
(Includes system with GH-4Z)
GH-VBX - farthest residential station
(1 monitor unit/residence)
(Includes system with GH-4Z)
GH-VBX - farthest residential station
(2 monitor units/residence)
(Includes system with GH-4Z)
Expanded system
total per Common trunk line
(maximum 2 trunk lines)
Expanded system
total per Sub trunk line
(maximum 4 trunk lines)
- 7 -
0.65 mm
0.8 mm
1.0 mm
(22 AWG)
(20 AWG)
(18 AWG)
-
5 m
-
(16')
-
300 m
-
(980')
150 m
300 m
-
(490')
(980')
-
300 m
-
(980')
-
300 m
-
(980')
100 m
150 m
-
(330')
(500')
50 m
100 m
150 m
(165')
(330')
(500')
100 m
150 m
-
(330')
(500')
-
5 m
5 m
(16')
(16')
-
5 m
5 m
(16')
(16')
-
300 m
300 m
(980')
(980')
-
300 m
300 m
(980')
(980')
-
2500 m
-
(8200')
-
5 m
5 m
(16')
(16')
-
300 m
-
(980')
-
150 m
-
(500')
-
300 m
-
(980')
150 m
300 m
-
(500')
(980')
-
300 m
-
(980')
100 m
150 m
-
(330')
(500')
50 m
100 m
150 m
(165')
(330')
(500')
-
each
-
2500 m
(8200')
-
each
-
2500 m
(8200')
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