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Idiomas disponibles
en
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Installation
3.2.4
Relay mode connections
The following table provides a function summary of each terminal if the detector
is ordered in relay mode.
Terminal
Terminal No.
+24 V
1
0 V
2
A
3
B
4
VID+
5
VID-
6
485A
7
+24 V
8
0 V
9
C
10
D
11
ALRM
12
ALRM
13
485B
14
10
Relay mode wiring diagram
Description
+24 V supply A
0 V supply A
Sense from fire panel
Return signal to fire
panel
Video +Ve
Video -Ve
RS485 termination +Ve
+24 V supply B
0 V supply B
EOL resistor
If the detector is connected in the above manner and if a fire alarm is signalled,
with the alarm resistor connected between terminals 12 and 13, then the alarm
EOL resistor
resistor will appear across terminals 3 and 4. The EOL resistor connected
between terminals 10 and 11 normally appears across terminals 3 and 4 and in
Alarm resistor
the event of a fault the resistor appears open circuit. If terminals 3 and 4 are
Alarm resistor
disconnected from the control system and polarity across power supply
terminals 1 and 2 is reversed, these wires then provide a RS485 connection to
RS485 termination -Ve
the detector. This connection may then be used to upload or download
information to the detector.
1
7
8
14
6
5
4
3
2
1
Instructions for use
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Video +ve
Video -ve
0 VDC
+24 VDC
Dräger Flame 5000
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