Correct remote shut off wire connection

[Ben Marascalco]

Please confirm, this is the correct way to attach the remote shut off?
Into the 104+?
Thanks

[Dacian Todea (electrodacus)]

Yes but you will also need to connect the EXT IO4- to battery+ trough a 1KOhm resistor.  Then as you show in the photo connect the yellow wire to EXT IO4+

[Ben Marascalco]

OK to use a wire from a Cat6 to do that?
Thanks again

[Dacian Todea (electrodacus)]

Yes. You connect one terminal of the 1KOhm resistor to Battery+ this resistor limits the current in case of fault like a short circuit then you can connect the CAT6 wire to the other terminal of the resistor and the other side of the CAT6 wire to EXT IO4-

If the CAT6 wire gets disconnected and shorts to GND (Battery-) the max current that will flow trough it will be limited by the 1KOhm resistor to 12 or 24mA depending on battery voltage so nothing will happen to the wire.

[Ben Marascalco]

Thank you!

[Ben Marascalco]

Do I do the same thing for the multiplus on 103?

[Dacian Todea (electrodacus)]

I do not know what you will be controlling with the EXT IO3.

If is a Victron Battery Protect or a Victron inverter then both wires from EXT IO3 will connect there and none of them to Battery+