Comfort Automation/ Security System Forums

Full Version: Connecting CSM03-PCB
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
Please clarify an ambiguity in the manuals.
If I\'m using a CSM03 (current sensor module), and I want to connect it to a RIO...

1. CSM03 manual says that EOL shunts should be set to double EOL resistors, but resistors shouldn\'t be installed (implying that they\'re already installed on CSM03)

2. RIO module doesn\'t have shunts to set EOL on inputs (because it\'s not intended as an alarm zone input module)

3. CSM03 manual says that if connecting CSM03 to a RIO, J3 and J4 on CSM03 should be closed, which disables the LED on the CSM.

Therefore, I conclude that installing J3 and J4 on CSM03 actually shorts out not only the LED, but also the built-in EOL resistors, since RIO module doesn\'t have the possibility to accept double-EOL inputs. So, with J3 and J4 installed, CSM03 behaves as a simple NO switch, with no EOL resistors.

Am I right?
That is correct, When connected to an RIO Input, CSM03 is a Normally open switch which closes when current is detected
Thanks!