Mi 2453
Gb - 8 -
B1
L2
L2
L2
L2
230V
127V
0
2273
2273
2221ML
SW2
SW2
4
3
2
1
ON
4
3
2
1
ON
ON
OFF
LP
LP
L1
L1
L1
L1
LP
LP
(*)
B2
B3
DV2420
J1
1 2 3 4 5
LM
LM
LP
LP
LD
LD
PDX2000
A
J
T
G
P
W
D
M
B
K
U
H
Q
X
E
N
C
L
V
I
R
Y
S
Z
F
O
1
4
7
2
5
8
0
3
6
9
230V
127V
0
PRS210
LI
LI
LI
LI
LO
LO
CONNECTION OF A SWITCHBOARD IN A MULTI WAY SYSTEM WITH 2 SECONDARY LINES CONNECTED
TO 2 MAIN DOOR STATIONS.
main door station “2”
Note.
Circled letters are diagram reference for the computation of the distances (see conductor table on page 6).
main door station “1”
B
i
s equal to the sum of
distances B1, B2 and B3
B1+B2+B3 = B
secondary line “a”
secondary line “b”
L2
L2
230V
127V
0
2273
2273
2221ML
SW2
SW2
4
3
2
1
ON
4
3
2
1
ON
ON
OFF
LP
LP
L1
L1
(*)
E
DV2420
DV2422A
J1
1 2 3 4 5
J1
1 2 3 4 5
LM
LM
LP
LP
LD
LD
PDX2000
A
J
T
G
P
W
D
M
B
K
U
H
Q
X
E
N
C
L
V
I
R
Y
S
Z
F
O
1
4
7
2
5
8
0
3
6
9
230V
127V
0
PRS210
LI
LI
LI
LI
L1
L1
B
LI
LI
LO LO
L2
L2
L1
L1
LP
LP
main door station “2”
main door station “1”
secondary line “a”
secondary line “b”
Example 1. Serial connection of the DUO line to the exchanger switchboard.
Example 2. Connection of the switchboard to the DUO line using a line distributor DV2422A
Note.
Remove the impedance
between the 2 terminals LO in
the junction box of switchboard.
