what is sequencer

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RF sequential operation requires the use of of a minimum of 2 receivers (8310-865). Depending on the desired operation required (if using access control), it may require up to 4 receivers (8310-865...
The 8310-845 is now a combination "Time Delay Relay / Door Sequence" module. In 2010 the separate 8310-845 "Time Delay" module and 8310-849 “Door Sequencer” module were combined into a "common" m...