Thread: Moving alarm keypad live?
View Single Post
  #15   Report Post  
Posted to uk.d-i-y
Andy Burns[_13_] Andy Burns[_13_] is offline
external usenet poster
  
Posts: 7,829
Default Moving alarm keypad live?
wrote:

It was the pesky green wire.

The RS485 is wired as a bus

Do you just have keypads/keyproxes?
Or also any RIOs/ISDN/ethernet/door controllers?

It could go

PANEL-PAD1-PAD2

or

PAD1-PANEL-PAD2

there should be a 680 ohm resistor at each end of the bus.
Reply With QuoteReply With Quote