04Feb 2015
by Nick Potter

Apollo 55000-818 Interface Unit Now Obsolete

The Apollo 55000-818 Interface Unit has now been made obsolete.  This unit was a surface mounted single input / output module designed for use on addressable fire alarm system circuits.
Apollo 55000-818 Interface Replacement

Apollo’s suggested replacement unit for the 55000-818 device is the 55000-847 unit.  This is an addressable single input / output interface unit with integral isolator.  Click Here To View The Apollo 55000-847 interface.

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