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Alarm connection
(9-position screw terminal)
Connection
Description
1
CH2, E
2
CH2, C
3
CH1, E
4
CH1, C
Alarm signals
Upon failure the circuit between the contacts "C" and
"E" is closed. This circuit can be used to generate an
external alarm signal by connecting an external relay as
shown on page 21. Please note that the maximum
allowed voltage/current is 30 V/80 mA.
Fibre optic connection
RX1
RX2
LD-64
TX1
RS-232
or
20
Polarity
–
+
–
+
Note! Always connect channel 1 to channel 2
TX2
RS-422/485
RS-232
!
Note
Alarm connectors are polarity depended.
9
RX1
RX2
LD-64
TX1
TX2
or
RS-422/485
Alarm indication
8
7
6
5
4
3
2
1
RX1
RX2
LD-64
TX1
TX2
RS-232
or
RS-422/485
C
E
6073-2002
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Table des Matières
