136
INSTALLATION DIAGRAMS
onnexion of an a.c. lock release.
C
ink of several power supplies units.
L
1st FA-Plus
2nd FA-Plus/C or FA-Plus
SEC
PRI
~
~
Main
+ +
-
-
SEC
PRI
~
~
Main
+ +
-
-
If an alternating current lock release has been installed, use a TF-104 transformer
and connect it to
the lock release as it is shown on the diagram.
If the quantity of monitors or telephones to be connected is bigger than the supported from one
power supply (see page 122), use additional power supplies to match the required quantity. The
first power supply should be connected to the door panel and to the first group of monitors or
telephones; connect the next groups to the positive terminal of its corresponding power supply.
To wire several power supplies link their ground terminals.
NEVER link positive terminals of different power supplies
.
To the door panel & to the first
group of monitors/telephones.
To the second group of
monitors/telephones.
Main
CN2
+
-
-
+
CV1
CV2
SEC
PRI
230110 0
-
-
+ +
EL631 PLUS /
EL640 PLUS
FA-PLUS/C
rev.938072
Main
TF-104
SEC
PRI
~ ~ ~ ~
Lock release
Va.c.
