jeditekunum
Active Member
This thread is for any EE or advanced hobbyists here...
I have a situation where I have some 3.3k EOL installed in nearly impossible to access locations and I want to change to a different panel brand. Most panels are in the 1-2k range.
One option I am considering is the Bosch B Series that uses 1k EOL. The documentation outlines 3 voltage ranges that the panel recognizes:
0-1.3v
2-3v (normal)
3.7-5v
There is no suggestion that the voltage seen is ever over 5v.
Does anyone know how inputs are typically wired internally? Is it a Constant Current Source or just a dumb resistor divider network?
Depending on the details (where all the devils are) there may be a way to put another parallel resistor at the panel to convert my 3.3k setup to look approximately like a 1k would - ie still maintaining the voltage ranges for supervision.
I have a situation where I have some 3.3k EOL installed in nearly impossible to access locations and I want to change to a different panel brand. Most panels are in the 1-2k range.
One option I am considering is the Bosch B Series that uses 1k EOL. The documentation outlines 3 voltage ranges that the panel recognizes:
0-1.3v
2-3v (normal)
3.7-5v
There is no suggestion that the voltage seen is ever over 5v.
Does anyone know how inputs are typically wired internally? Is it a Constant Current Source or just a dumb resistor divider network?
Depending on the details (where all the devils are) there may be a way to put another parallel resistor at the panel to convert my 3.3k setup to look approximately like a 1k would - ie still maintaining the voltage ranges for supervision.