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MA-2000
6.3.4
USR1 and USR2 relays
The USR1 and USR2 relays are available in free voltage contacts or as supervised outputs.
Contact range: max 30 V AC / DC, 2 A, Non-inductive loads Selection of type of contact
(Normally open, normally closed or supervised outputs) refer to Chapter 4.4.2.
To program the activation of these outputs refer to MA-2000 Commissioning Manual.
CNU
USR1
13 14
COM NO/NC
Polarized devices balanced with resistor (electronic sirens, etc.)
xx
xx
Polarized devices balanced with diode (electronic sirens, etc.)
xx
xx
Non-polarized devices balanced with a resistor (Bells, relays, etc.)
xx
xx
24
CNU
15 16
COM NO/NC
47 K
¼ W
1N4004
47 K
¼ W
USR2
2 x 1N 4004
Connect the 47 KΩ, ¼ W
EOL resistor or the diode
only on last sounder of
the line.
Polarity displayed are in
Alarm condition, at idle
condition, they are
inverted!
M-167.1-MA2000-EN / 06.2022
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