C420 Installation Manual
17
3.6 MR420 OPTIONAL MODULE
The optional module MR420 allows the control panel to expand its outputs by adding 4 supervised siren outputs. The module must
be connected to the Command and Control module. The connectors and terminals of the module are reported below:
Figure 7 – MR420 module
MR420 connectors
JP1
This connector is used to connect the module to the MCC
MR420 terminals
S1+
Supervised siren output #1, positive 24V
⎓
250mA terminal
S1-
Supervised siren output #1, negative terminal
S2+
Supervised siren output #2, positive 24V
⎓
250mA terminal
S2-
Supervised siren output #2, negative terminal
S3+
Supervised siren output #3, positive 24V
⎓
250mA terminal
S3-
Supervised siren output #3, negative terminal
S4+
Supervised siren output #4, positive 24V
⎓
250mA terminal
S4-
Supervised siren output #4, negative terminal
