Speck Electronics SSM - Manual (Page 15)

Chapter 2 Initial Preparation 10
The Model SSM is delivered in a special, protective container and was
carefully inspected both mechanically and electrically before shipment.
It should be physically free of mars and scratches and in perfect
electrical order upon receipt. To confirm this, the product should be
inspected for physical damage that may have occurred in transit. Any
damage should be reported to your dealer and delivery company as
soon as possible.
The Model SSM will operate satisfactorily over a wide range of
ambient temperatures, and the power supply will operate from 10 to 50
degrees C. If the power supply is installed in an equipment rack that
also contains heat producing equipment such as power amplifiers or
other power supplies, adequate ventilation should be provided. This will
prolong component life and maximize operational stability.
While the internal circuitry of the SSM is fully shielded by the steel
chassis, installation should nevertheless be planned to avoid locating the
SSM, optional SSM Expander, or any low level audio equipment
immediately adjacent to power amplifiers, power supplies, or any source
of Electromagnetic emissions.
To protect operating personnel, the National Electrical
Manufacturers Association (NEMA) recommends that the
instrument panel and rack cabinet be grounded. All Speck power
supplies are equipped with a three conductor power cord which, when
plugged into an appropriate receptacle, grounds the power supply. The
offset pin on the power cord's three-prong plug is the ground wire.
The three conductor line cord and plug assembly is wired in
accordance with NEMA convention (line - black, Neutral - white, and
safety earth - green). Audio signal grounds and DC grounds from the
mixer are isolated from the AC safety earth.
When using the Model SSM and its power supply outside North
America, it will be necessary to adapt a different power plug for that
specific country.
Unpacking and
Inspection
Grounding
Environmental
Considerations
Initial
CAUTION! DO NOT REMOVE, DEFEAT, OR DISABLE THE
SAFETY EARTH TERMINAL ON THE POWER
CORD. DO NOT USE A GROUND LIFT ON THE
POWER SUPPLY.