The PB-48 and PB-48D are professional Patch Bay Systems
featuring a full 48 patch points. Each is housed in a sturdy, heavy
gauge steel single rack space chassis. Each is built with high
quality jacks that will provide many years of reliable service. Each
unit may be easily customized to allow any vertical patch pair to be
half-normalled, non-normalled, or multed.

An attractive front panel hides all but the tips of the jacks, and
provides a blank white area for labeling each jack’s connections. A
set of labels pre-printed with frequently used notations is supplied
with the unit.