Installation - D.W. Fearn VLC Operating Instructions Manual

9

Installation

The VLC is carefully packed for shipment and should survive all but the most brutal handling. If
there is any damage, keep the shipping material for use during any claim for damage with the
shipper.
Included in the box:
1) The VLC Instrument Interface
2) Line cord
3) This instruction manual
Mounting
The VLC is designed for installation in a standard 19 inch rack. It requires 3.5 inches of vertical
space, but additional spacing between it and adjacent equipment is recommended for adequate
cooling. Ideally, a ventilated panel at least 1 rack unit high (1.25 inches) should be installed
above and below the VLC (and around any other heat producing equipment for that matter). Be
sure the bottom vent slots are not blocked. Equipment that runs cool can last for a very long time.
In tight equipment enclosures, be sure there is adequate air flow. Forced air cooling will benefit
all your equipment.
The VLC can also be used without a rack, placed on a table, counter, or even on the floor.
Optional rubber feet are available, when requested at the time of the order.
Moderate electrical and magnetic fields in the vicinity of the VLC should not cause any
degradation in noise performance, due to the well-shielded construction, but proximity to devices
with motors or large power transformers (i.e. tape machines or power amps) should be avoided.
Although the vacuum tubes in the VLC are selected for minimum microphonic response, it is a
good practice to avoid mounting locations that subject the VLC to very high sound or vibration
levels.
Power
The VLC is designed to operate from 120 or 220-240 volt, 50/60 Hz power. The unit will be
shipped wired for the voltage specified in the order, but may be changed in the field if necessary
(Call the factory for detailed instructions). The ground pin of the power cord is internally
connected to the chassis. This configuration is standard in professional equipment and is required
by most electrical codes. A grounding screw is provided on the back panel for installations that
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