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This system is constructed with a 2-line communication system and a 2-line video system and requires minimal work for installation. The system is
constructed with video trunk lines consisting of a maximum of 6 trunks from the video bus control system and communication trunk lines that use a
distribution point from a bus control unit. In addition, systems with audio only can be configured.
PS-2420,PS-2420S,
PS-2420ULPS-2420DIN
#1 #6
2
B
A
C
3
E
D
F
5
K
J
L
8
U
T
V
4
H
G
I
6
N
M
O
1
0
9
Y
X
W
Z
7
R
Q
P
S
2
B
A
C
1
7
R
Q
P
S
0
3
E
D
F
4
H
G
I
5
K
J
L
6
N
M
O
8
U
T
V
9
Y
X
W
Z
#1 #6
2
B
A
C
3
E
D
F
5
K
J
L
8
U
T
V
4
H
G
I
6
N
M
O
1
0
9
Y
X
W
Z
7
R
Q
P
S
PS24
PS24
PS24
PS24
PS24
PS24
Residence trunks
Common area
Residence trunks
Entrance Station
(Integrated type)
Entrance Station (Unit type)
Power supply
DP
: Audio signal line (1)
: Video signal line (1)
: Power supply line (1)
Video bus control unit
GT-VBC
Bus control unit
GT-BC
DP: Distribution Point
Security guard station
GT-MK
Entrance station
Audio/video + 10 key type
Ex.) GT-VA + GT-DA-L/GT-DA +
GT-NS-V/GT-NS, GT-10K
Audio/video + direct select type
Ex.) GT-VA + GT-DA-L/GT-DA +
GT-SW
Audio + 10 key type
Ex.) GT-
DA-L/GT-DA +
GT-NS-V/GT-NS, GT-10K
Audio + direct select
type
Ex.) GT-DA-L/GT-DA +
GT-SW
GT-DMV (Guidance-enabled +
VIGIK-linked type)
GT-DM (Guidance-enabled type)
Capacity
Entrance station Maximum 5 stations (maximum 3 sta-
tions per trunk) *1
Security guard station Maximum 2 stations
Residential station Maximum 48 stations (maximum 25
stations per trunk) *2
Residential stations in the same resi-
dence (other than GT-2C)
Maximum 4 stations (2 monitor sta-
tions)
4-way video junction unit (see page 6) Maximum 6 units per trunk
Bus control unit Maximum 1 unit
Video bus contr
ol unit Maximum 1 unit
Master stations in the same residence
(GT-2C)
Maximum station
Sub master monitor station Maximum 3 stations
*1 If an external door release button is connected to a direct select type
entrance station, a maximum of 3 stations can be connected to a
standard system.
*2 The maximum is 100 stations with the GT-1D and GT-1M-L only.
(GT-1D: Maximum 50 stations per trunk
GT-1M-L: Maximum
25 stations per trunk)
1
SYSTEM CONFIGURATIONS
Standard system configuration1-1
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