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The PB-40 is the professional Patch Bay System from Furman
Sound featuring a full 40 patch points, eight more than most
competitive products. It is housed in a sturdy, heavy gauge steel
chassis measuring 1.75" high by 19" wide (one standard rack space).
Each unit is constructed of 20 circuit board modules which fit into a
specially designed sub-panel. An attractive front panel covers the
sub-panel, hiding all mounting nuts and providing a blank white area
for labeling each jack's connections. A rear cover slips over the rear
connectors of each module and screws to the sub-panel, holding the
modules firmly in place.
Because of its modular construction, the PB-40
is available in many configurations. Each module consists of four
connectors- a front pair and a rear pair, mounted on a printed circuit
board. Modules are available using any desired combination of 1/4"
phone, 1/4" phone (tip-ring-sleeve), or RCA (phono) jacks in front and
in rear. In addition, the PB-40
Patch Bay system can be easily customized for other configurations
simply by substituting modules, which may be purchased separately.
Each PB-40
module is factory-wired in the half-normal configuration. That is, the
top jack on the rear is normally connected to the bottom jack on the
rear. 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 the 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 breaks the signal flow, allowing
the insertion of a device, usually a signal processor, into the loop.
Most often this is the output of a device whose input is taken from the
top jack of the front panel pair, but his is not necessary.
In some instances it is desirable to defeat the normalling. With the PB-40,
this is easily done for any patch pair by cutting a jumper on the
module circuit board. In addition, a wide variety of other
customizations (some require soldering) are possible. These include
third circuit switching by means of isolated switches on each of the
phone jacks, installation of pigtail connectors, and mults.
Instructions for these modifications are included with the unit.
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Furman Sound, Inc. 1997 South McDowell Blvd. Petaluma, California 94954 |
Phone: 707-763-1010 Fax: 707-763-1310 E-mail: Sales and Marketing: info@furmansound.com Technical Support: techsupport@furmansound.com |