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INM MTL SUM5 Rev 7
DRAFT - 09 June 2021 DRAFT - 09 June 2021
9 INDIVIDUAL CHANNEL REPEAT RELAYS
As an option a low power magnetically latched pulse relay can be provided on a per channel basis to
repeat the alarm signal to 3rd party devices.
Each relay can be congured in software to operate in accordance with one of the following:-
Input Follower
The relay changes state each time there is a change to the associated signal input contact.
Logic Follower
The relay changes state on alarm and remains in the abnormal state until the input has returned to
normal and the logic has been reset using the pushbuttons associated with the ISA sequence set
for this channel.
Display Follower
The relay changes state on alarm and faithfully follows the display window i.e. Flashing, Steady or
Off depending on the alarm sequence selected for this channel.
Contact Rating
1A @ 24VDC (0.2A 120VAC)
WARNING !
GPA, GPB, WD, Channel repeat relays should only be connected to
customer secondary circuits separated from mains supply circuits by
means of a transformer.
For hazardous voltage above 60Vdc (SELV) isolate the supply before
carrying out any work