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Installation-Programming C402-C404
3.4.1 MR402 – MR404 module of the terminal board
The MR402 – MR404 modules are equipped with a group of terminals that are connected to the SPDT form C – dry
contacts of the alarm zones relays and cumulative alarm relay. Each terminal is described below:
Figure 6 – Relay module
Relay module terminals
Terminal
Description
1
Cumulative alarm relay output – normally closed contact
2
Cumulative alarm relay output – normally open contact
3
Cumulative alarm relay output – common contact
4
Alarm zone 1 relay output – normally closed contact
5
Alarm zone 1 relay output – normally open contact
6
Alarm zone 1 relay output – common contact
7
Alarm zone 2 relay output – normally closed contact
8
Alarm zone 2 relay output – normally open contact
9
Alarm zone 2 relay output – common contact
10
Alarm zone 3 relay output – normally closed contact (*)
11
Alarm zone 3 relay output – normally open contact (*)
12
Alarm zone 3 relay output – common contact (*)
13
Alarm zone 4 relay output – normally closed contact (*)
14
Alarm zone 4 relay output – normally open contact (*)
15
Alarm zone 4 relay output – common contact (*)
(*) terminal not available in the MR402 module.
