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Thorn System 1700

myristate
in General Fire Alarm Queries

Featured Replies

Working with an old conventional thorn system 1700, Cant remeber what the end of line values for sounder and zone circuits are. Anyone able to enlighten me?

Edited by myristate

Working with an old conventional thorn system 1700, Cant remeber what the end of line values for sounder and zone circuits are. Anyone able to enlighten me?

Should have a manual for it somewhere gathering dust - will try to check it out later.

Allen

Working with an old conventional thorn system 1700, Cant remeber what the end of line values for sounder and zone circuits are. Anyone able to enlighten me?

is measuring a correctly terminated circuit too easy ?

Mr th2.jpg Veritas God

How is that going to tell me? since nothing is fitted

He means measure an existing circuit, your post made out you were working on an existing system.
  • Author

Even if i was working on an exisitng system, the fact im asking about the end of lines would probably mean that they have not been fitted.. :)

Sounder circuits 22k Ohm

Zone circuits 4k7 Ohm

Regards,

Kieron

Sounder circuits 22k Ohm

Zone circuits 4k7 Ohm

Regards,

Kieron

Hi Kieron glad to see you posting on here.Are you on here most evenings or just now and then? Pete

Peter Robinson

Freelance

M:07889038650

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