Furman PB-48

Furman PB-48
Discontinued DJ Equipment

Description

The PB-48 is a professional Patch Bay Systems featuring a full 48 patch points. The PB-48 is housed in a sturdy, heavy gauge steel single rack space chassis. Each unit 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 multied. 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.

Normalling

Each vertical jack pair of a PB-48 is supplied in the half-normal configuration. That is, the output of the equipment connected to the top jack of the front pair is "normally" connected to the input of the equipment connected to bottom jack. The signal flow through the jacks on the front panel is such that inserting a plug in the top jack on the front does not break this normal connection, but provides a tap on its circuit (useful in branching circuits, to send a signal to two devices simultaneously). However, inserting a plug into the bottom jack does break the signal flow, allowing the insertion of a device (usually a signal processor) into the loop. (Since only one of the two jacks in a pair has the switching capability to break the normal connection, this configuration is called "half"-normal and is the most flexible and popular patch bay style.)


Model PB-48

The PB-48 is Furman's standard patch bay, usable in almost any application. It features 1/4" TRS phone jacks in all positions, front and rear, with one switching jack in the lower front positions. TRS jacks have the advantage of being usable in either balanced or unbalanced systems. The PB-48 employs jacks with silver-plated phosphor bronze contacts, mounted on 24 circuit board modules, each of which encompasses the two front and two rear jacks of a vertical pair. The PB-48's front panel can be easily removed, even when the unit is already mounted in a rack. The unit may be customized by removing the front panel, pulling out any module to be non-normalled, turning it end-for-end, and replacing it. PATCH CORDS Patch-P: Set of 10 phone-to-phone cords, 30 inches (75 cm) length. Patch-PR: Set of 10 phone-to-RCA cords, 72 inches (183 cm) length.

Features

Full 48 patch points
PB-48 modules accommodate 1/4" T-R-S phone jacks that may be used with balanced or unbalanced systems
PB-48 modular construction and removable front panel makes customizing easy, even while unit is rack mounted
Sturdy all steel, fully enclosed construction provides excellent shielding from noise sources
Half-normal wiring is standard; may be defeated if desired with no soldering or cutting required
Preprinted peel-and-stick labels for jacks
All jack mounting hardware hidden by decorative front panel