I have a building that has Summit ver. 11.01. They have a remote building that utilizes 2- FSI D1200 trancievers to convert from the Trane Comm loop(RS485) to fiber optic. I have the same transievers on both ends. On the main building I have an EOL resistor rated at 200 ohms. The remote building has a EOL resistor rated at 1600 ohms. FSI said they recommend a 120 ohm resistor. That takes down all communication when I try the 120 res..
Here is the problem: I can communicate with the other building with the above set up but every 5 minutes to every 60 minutes I get a comm loss from every unit at the remote building. This only last about 10 seconds and they all come back up as comm ok.
Has anyone run into this?
Can I set up a filter in the alarm handler that will ignore the comm loss alarms on these units?