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5. Set switch (SW5) on the board to choose the data
line selection mode for data terminal.
4 LINE : normal connections are
made.
2 LINE : simplified connections
are made.
Initially, 4 LINE is selected
at the factory.
The above switching should be made by qualified
service personal or system installers.
2. Connection of Alarm Output Terminal
• Make sure the polarity of the buzzer to meet with
this terminal.
The positive (+) terminal of
the buzzer should be con-
nected with the Alarm Output
Terminal.
• The Alarm Output Terminal is
composed of the Open
Collector Output and the
capacity is 16V DC, 100mA
or less.
2LINE
4LINE
RESET OUT
ALARM OUT
GND
Buzzer
-8-
(1) In case the buzzer is operable within the capacity
of Alarm Output Terminal, connect buzzer as
shown right.
(2) In case the buzzer is not operable within the
capacity of Alarm Output Terminal, the external
relay unit should be used as shown below.
RESET OUT
ALARM OUT
GND
NC
NO
Relay
C
+12V
NC : Normally Closed
NO : Normally Open
C : Common
To Buzzer
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