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The D127 Reversing Relay is a dual alarm reporting module. It can report alarms over a direct wire line to meet insurance and local municipal requirements. When mounted in an enclosure with a compatible control panel, the D127 can report two separate alarm conditions to the central station. The D127 Reversing Relay supplies a contact reversal for one alarm condition and a repeating flip/flop (reversal/normal/ reversal) mode for a second alarm condition. The relay output can be dry contact switching or voltage/current reversing, depending on the requirements of the receiving station.
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