Downsend

For example, our new Commercial Express Remote Transaction System gives your commercial customers a time-saving drive-in lane of their own -- the only system of its kind in both upsend and downsend configurations.

Source: wiktionary

Mosler teller terminals are available in two models, each installed in an upsend (right) or downsend (left) configuration. For new construction sites or when planning additional lanes, downsend installations may be preferred.

Source: wiktionary

clear up-send tubing for its transaction carriers, eliminating business interruptions and the costly retrenching required for downsend systems.

Source: wiktionary