5.
5
(MT13 - En 2015)
5
ALp
DL
PEp
PDX
SM
SM
SM
SM
AL
AL
AL
AL
PE
PE
PE
PE
VC
VC
VC
VC
VC
VC
VC
VC
VC
VC
VC
VC
DV
DV
DV
DV
DV
DV
DV
DV
"a"
"b"
"c"
"d"
DM
DM
DM
System with common main door station, three independent risers with relative separators. For the calculation of the equivalent loads and
equivalent impedances the following composition is assumed: building “a” with 32 video intercoms, “b” with 24, “c” with 17 and “d” with 39.
Equivalent impedance calculation:
Riser "a": 32x10(VC)+8x0(DV)+10(AL)+10(PE) = 340Z
E
a
Riser "b": 24x10(VC)+6x0(DV)+10(AL)+10(PE) = 260Z
E
b
Riser "c": 17x10(VC)+4x0(DV)+10(AL)+10(PE) = 190Z
E
c
Riser "d": 39x10(VC)+10x0(DV)+10(AL)+10(PE) = 410Z
E
d
Common line: 4x8(SM)+3x8(DM)+10(DL)+10(PDX)+10(ALp)+10(PEp) = 96Z
E
p
Common line + Riser "a": 340Z
E
a+96Z
E
p = 436Z
E
Common line + Riser "b": 260Z
E
b+96Z
E
p = 356Z
E
Common line + Riser "c": 190Z
E
c+96Z
E
p = 286Z
E
Common line + Riser "d": 410Z
E
d+96Z
E
p = 506Z
E
V
I
D
E
O
I
N
T
E
R
C
O
M
S
INSTALLATION NOTES
Riser "a" with:
32 VC (EX3252C);
C
E
= 8
X
32 = 256
8
DV (DV2424Q);
C
E
= 0
X
8
=
0
1
PE (CD2138PL);
-------
1
AL (2221ML = <400);
256
Load riser "a"
Riser "b" with:
24 VC (ZH1262);
C
E
= 10
X
24= 240
6
DV (DV2424Q);
C
E
= 0
X
6
=
0
1
PE (CD2138PL);
-------
1
AL (2221ML = <400);
240
Load riser "b"
Riser "c" with:
17 VC (ML2002C);
C
E
= 10
X
17= 170
4
DV (DV2424P);
C
E
= 0
X
4
=
0
1
PE (CD2138PL);
-------
1
AL (2221ML = <400);
170
Load riser "c"
Riser "d" with:
39 VC (EX3262C);
C
E
= 10
X
39= 390
10 DV (DV2424P);
C
E
= 0
X
10 =
0
1
PE (CD2138PL);
-------
1
AL (2221ML = <400);
390
Load riser "d"
Common line with:
3
DM (DM2421);
C
E
= 10
X
3 =
30
1
DL (DV2420);
C
E
= 30
X
1 =
30
4
SM (2231);
C
E
= 10
X
4 =
40
1
PDX (PDX2000);
C
E
= 30
X
1 =
30
1
PEp (TD2100PL);
-------
1
AL (2221ML = <400);
130
Load common line
Composition with the following items and
calculation of the equivalent absorption load:
