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5.3 Examples of terminal connections
L1, L2, L3, L4: alarm line inputs
These terminals are connected to the contacts of the alarm detection devices.
These inputs can be individually programmed as:
• Normallyclosed • Normallyopen
• Singlebalancing • Doublebalancing
N.B. the value of the line’s balancing resistances is always 5.6 KΩ
“Double balancing” example “Single balancing” example
“Normally closed” example” “Normally open” example”
+B :12V live outputs, always available even when the control unit is OFF
The cables to feed the detectors and/or
the additional devices are connected to this
terminal.
+13.8V EXT_SIR: live output, always available even when the control unit is OFF
Terminal suitable to charge the buffer batteries
of sirens or other self-powered devices.
+V_INT SIR: live output, always available during an alarm
Terminal to feed the indoor sirens (not self-powered).
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