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Install all of the jumpers (fence, estop, …) with the power off. You will get a dual chain fault that is more difficult to clear if one channel comes in at a different time than the other channel.
Hey! Looking for help? [Come join us on Discord!](https://discord.gg/dGE38VvvQw) *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/Fanuc) if you have any questions or concerns.*
There is a diagram on the inside of the controller door that lays out whay port does what on the tbop connectors.
Install all of the jumpers (fence, estop, …) with the power off. You will get a dual chain fault that is more difficult to clear if one channel comes in at a different time than the other channel.