
56
C
onnecting an audio door entry system to an IT-4N telephone interface.
Forgreaterdist
ances,pleaseconsultwithourtechnical
supportdep
artment.
0,ind,5,
,10,
,P
,P1
0.25mm²
0.50mm²
0.50mm²
1.00mm²
1.00mm²
2.50mm²
T
erminal
100m.
Dist
ance
300m.
–,3
~1,~2,CV
SEC
~~
~~
PRI
TF-104
Main
CV
CP
L1
L2
ind.1
ind.1
ind.3
ind.2
ind.3
P
CN1
-
~1
~2
TF-104
S
tadioPlus
SEC
~~
PRI
~~
0
10
5
3
P1
0
10
5
3
P1
Main
EL555
1
2
3
ind.2
0
10
5
3
P1
Outputtotelephones
(Localsubscriberloop)
T
elephoneline
(Subscriberloop)
30Vdc/V
ac1A
RelayOutput
12Vdc/40mA
Divertenabledoutput
Inputforenabling/disabling
divertcall
IT
-4N
P1
PD
LA
5
DA
PA
3
0M
RA
RB
PB
10
LB
INSTALLATION DIAGRAMS