62 IFP-300 Series Manual — P/N LS10145-001SK-E:C 4/6/2022
Control Panel Installation Remote Station Applications
To install the MR-201/T for polarity reversal:
1. Wire the MR-201/T as shown below.
2. Program the NAC circuit for non silence NAC circuit.
NO C NC NO C NC
TROUBLESBUS OUT
NC C NO
- +
A B
RELAY1
NC C NO
RELAY2
NC C NO
NAC1 NAC2 NAC3 NAC4
+ - + - + - + -
Intended for connection to a
polarity reversal circuit of a
Remote Station Receiving
Unit having compatible rating.
to remote
receiving station
EOL
EOL
MR-201/T
4.7k EOL
Figure 4.52 Polarity Reversal Connection Using the MR-201/T Relay
NOTE: If you need to transmit supervisories or trouble conditions, additional relay modules must be added. Use relay 1 to transmit supervisory
conditions. Use the trouble relay to transmit trouble conditions.
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