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Telephonic system
DIAGRAM 3
6
SYSTEM TYPE DIAGRAMS
26
8
OS
Analog-Digital system
to the floor distribution
335818
335828
Exchange
PRI
a b
1
a b
2
a b
3
a b
4
a b
5
a b
6
a b
7
a b
8
C
NO
a b
U2
a b
U1
3 4 M P T R
230V a.c.
50-60Hz
6
Telephone
1..............
2..............
3..............
4..............
5..............
6..............
7..............
8..............
9..............
a
b
(403)
a b
IN
a b
OUT
a b
IN
a b
OUT
Telephone
lines
PLT1 PLT1
Note: only item 335828
has the second telephone line (U2)
MACROCOMMAND
*82*03#
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