BSS Audio
FCS-930/960 User Manual v3.0
Page 3
1 Mechanical Installation
A vertical rack space of 2U (3.5", 88.9mm) for the FCS-930, and 3U (5.25",
133.35mm) for the FCS-960 is required. You must support the unit at its rear by
additional bracing or shelving if it is to be used in a transportable system. Failure to
do so will impair reliability and invalidate the warranty. Adequate ventilation must
be provided for by allowing sufficient room around the sides and rear of the unit to
ensure free circulation of air. Forced cooling is not required. The front of the unit
should not be exposed to long term direct sunlight as this can have a detrimental
long term effect on the control knobs.
The internal power supply transformer is mounted on the case rear. After a period
of time in an enclosure, the metal case will feel hot to the touch, but this is quite
normal and should not be a cause for alarm.
2 Mains power connection
WARNING! THIS APPLIANCE MUST BE EARTHED.
The FCS-930/960 must always be connected to a 3-wire earthed AC outlet. The
rack framework must also be connected to the same grounding circuit. The unit
must NOT be operated unless the power cables' EARTH (ground) wire is properly
terminated - this is important for personal safety as well as for proper control over
the system grounding. The FCS-930/960 has electronically balanced audio
connections and does not need disconnection of any safety earth for the avoidance
of hum loops.
The wires in the mains lead are colour coded in accordance with the following
code.
Green and Yellow......Earth
Blue......Neutral
Brown......Live
Those units supplied to the North American market will have an integral moulded
3 pin connector which is provided to satisfy required local standards.
IMPORTANT: The FCS-930/960 is designed to use 50/60Hz AC power in one of
the two voltage ranges, selectable with the mains voltage selector switch on the
rear of the unit. It is vital that the position of this switch is checked BEFORE initial
power up to ensure that it matches the local mains supply. Acceptable input AC
supply voltages range from:
115V switch position
-
90V to 132V
230V switch position
-
190V to 264V
The application of voltages outside these ranges may cause permanent damage or
erratic operation of the unit, and will invalidate the warranty.
