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Hello! I've reviewed the installation instructions for the Hubbell PD1553 Telephone Connecting Device. The document outlines the wiring requirements for connecting the device, as well as the labeling of the terminals and proper wire color mapping. I'm ready to answer your questions regarding the installation process or any other aspect of the instructions.
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What do the terminals R, T, and GR stand for?
Which wire from the inside phone cable connects to the "R" terminal?
Which wire from the inside phone cable connects to the "T" terminal?
Which wire from the inside phone cable connects to the "GR" terminal?