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 Selecting alarm stages:

The majority of the E2S range of alarm sounders (and some
multi-function beacons) have 2, 3 or 4 'alarm stages'. Below
is a brief explanation of how the different stages are activated.

AC units:

Stage 1 – Apply power only
Stage 2 – Apply power and close contacts at 'S2-Stage2'
Stage 3 – Apply power and close contacts at 'S3-Stage3'
Stage 4 – (Programmable units ONLY) Apply power and close both contacts

Important: Stages must be switched via the separate 'C' common terminal not the neutral supply.


 DC units:

Stage 1 – Apply power only
Stage 2 – Apply power and close contacts at 'S2-Stage2'
Stage 3 – Apply power and close contacts at 'S3-Stage3'
Stage 4 – (Programmable units ONLY) Apply power and close both contacts

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