AT&T MERLIN LEGEND Release 3.1 Installation Manual page 198

Terminal Adapter Data-Only Stations
a Use a D8W cord to connect the 440A4 terminating resistor adapter to the
LINE jack on the terminal adapter.
b Use a second D8W cord to connect the other end of the adapter to the
appropriate MLX extension jack. See Form 2b, System Numbering: Digital
Adjuncts for the appropriate module and extension jack.
6 Connect all power cords to an AC outlet not controlled by a wall switch.
Connecting Data Equipment
6–15