The P1 port on your smart grid meter is usually located on the front or side of the meter and is typically labeled as “P1” or with a symbol indicating data output. It’s a small, rectangular port where you can connect communication cables for data transfer. If you’re unsure, check the meter’s user manual for specific instructions or port location. Please note that the P1 port can have either RJ12 or RJ45 connector, so choose appropriate cable supplied with your Reduxi P1 WiFi.