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4 Wire Grade 2

Amps
in General Security & Fire Queries

Featured Replies

Could somebody please clear this up for me please, is it ok to four wire detectors on a grade 2 system or must it be e.o.l. <_<

either / both comply

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I believe it is OK to use double pole on Grade 1 and 2 systems.

We use FSL for Grade 2 and 3.

Trade Member
  • Author

Fast answers :) That sorted then, ta.

What's FSL though?

Edited by steveo44

Fast answers :) That sorted then, ta.

What's FSL though?

fully supervised loop ...... same as eol

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  • Author
fully supervised loop ...... same as eol

:o
fully supervised loop ...... same as eol

Beg to differ, sorry. fsl has an end of line for tamper + another series for alarm.

Sorry, grandma, eggs etc....
Beg to differ, sorry. fsl has an end of line for tamper + another series for alarm.

Sorry, grandma, eggs etc....

Yes, you're right .... the only way we do eol/fsl is the fsl way, so I forgot about the single resistor methods of eol

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G2 --> 2 EOL method

G3 --> 3 EOL method
  • Author
Could somebody please clear this up for me please, is it ok to four wire detectors on a grade 2 system or must it be e.o.l. <_<

To add to the original question, are global tampers acceptable for grade 2 ? steamingcup

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