Search for: Log In Register OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Connect Ethernet Module Tagged: v3.4 ethernet ribbon cable This topic has 2 replies, 2 voices, and was last updated 1 month, 3 weeks ago by terry.haan. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts April 30, 2026 at 4:39 pm #85615 terry.haanParticipant Just delivered, a new OpenSprinkler v3.4 DC version with Ethernet module. What is the orientation of the ribbon cable ? When inserted, red on the left, or right ? How about identifying the pin #1 of the connector on the unit so that this is more obvious? Thanks. April 30, 2026 at 9:29 pm #85621 RayKeymaster The connector has a bump at the top which matches the receptacle on the controller. There is only one way to plug it in. If you plug the wrong way it will not go in. April 30, 2026 at 10:12 pm #85623 terry.haanParticipant Yes there this. I was looking for missing pins or pin# and didn’t see the bump. Thanks for the quick reply. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Connect Ethernet Module