Of Optional Unit; Of Sensor And Door Opener - Panasonic Easa-Phone VA-824 Installation And Programming Manual

Key telephone system
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5. CONNECTION
OF OPTIONAL
UNIT
Connections of sensor and door opener
Make connections
of sensor and door opener according
to the following
procedures.
l
Connection
of sensor
(1)
Insert
a door
box
card (VA-30960)
into the key service unit.
This card makes sensor usable and also
be used for door box. (See page 13)
(2) Connect
the
sensor terminals
(screw
terminals)
on the door
box
card to
sensor to be used and must meet the
following
requirements
for
connec-
tion.
Requirements
for connection
(a)
Always use a relay-type
sensor.
(b)
Ratings for contacts
See figure
l
Connection
of door opener
(1)
Insert
a door
box card (VA-30960)
into
the key
service
unit.
This
one
card makes two door openers usable.
(2)
Connect
the
screw
terminals
(two
terminals
make a pair) located
on the
door
box
card
to
the
respective
door
openers.
Since the door openers
are one-to-one
corresponding
to the
door box, connections
should be made
as shown below.
Door box A ff Door opener A
Door box B ++ Door opener
B
Note that the door openers
to be used
must meet the following
requirements
for connection.
Requirements
for
connection
(Re-
quirement
for driving
contacts
of the
relay installed
in KSU)
See figure
i-Ul
a0 -
OOC
C
-
-
-
1
-
Various
sensor
Contact with-stand
voltage
: MIN.5V
Contact
current
: MIN. 2 mA
Contact
resistance
: MAX. 0.1 n
Goor
opener
w
Drive voltage
: MAXAC50VorMAXDC30V
Drive current
: MAX 1 A
Operation
time
: Approximately
1 second
14

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