24
C420 Installation Manual
6.5 SUPERVISED SIREN OUTPUT
Siren output
Output voltage
24V
⎓
End of line resistor
3300
Ω
Max available current
500mA
Protection fuse (F2)
5x20 – 250V F500mA
6.6 SUPERVISED SIREN OUTPUTS – MR420
Siren outputs
Output voltage
24V
⎓
End of line resistor
3300
Ω
Max available current
250mA
Protection circuit
Internal - restorable
6.7 FIELD OUTPUT
Field outputs
Output voltage
24V
⎓
Output voltage when the AC mains is missing and the
resistance of batteries is high
22.3V
⎓
Output drop and control panel turn off voltage
18,5V
⎓
Max ripple on the output voltage
17mV
Max available current
1A
Protection fuse (F1)
5x20 – 250V F1A
6.8 RELAY OUTPUTS
Fault/programmable relay output
Type of contact
Dry contacts
Max voltage
30V
⎓
Max current
1A resistive load
Alarm/siren/zone relay output (
1
)
Type of contact
Dry contacts, NO/NC type selectable via jumper
Max voltage
30V
⎓
Max current
1A resistive load
(
1
) The information reported in the table also applies to the zone relays available on the ML420 module.
6.9 DISTRIBUTION OF CONSUMPTIONS
Distribution of consumptions (4A max)
Current drawn by the boards of the control panel
160mA nom. / 230mA max
Current drawn by each ML420 module
45mA nom. / 80mA max
Current drawn by the MR420 module
20mA nom. / 50mA max
Current drawn by the RS232/485 board
20mA
Current available at the field output
1A
Current available at the supervised siren output
500mA
Current for battery recharge
500mA
Current available at each detection circuit for the
conventional points
40mA
Current available at each supervised siren output of the
MR420 module
250mA
Symbol
Description
Direct input voltage
See the installation manual of the device